https://reunir.unir.net/handle/123456789/9824 Tue, 19 Nov 2024 09:22:19 GMT 2024-11-19T09:22:19Z https://reunir.unir.net/handle/123456789/10184 Artificial Intelligence Applied to Project Success: A Literature Review Fernández Rodríguez, Juan Carlos; Magaña Martínez, Daniel Project control and monitoring tools are based on expert judgement and parametric tools. Projects are the means by which companies implement their strategies. However project success rates are still very low. This is a worrying situation that has a great economic impact so alternative tools for project success prediction must be proposed in order to estimate project success or identify critical factors of success. Some of these tools are based on Artificial Intelligence. In this paper we will carry out a literature review of those papers that use Artificial Intelligence as a tool for project success estimation or critical success factor identification. Submitted by Susana Figueroa Navarro (susana.figueroa.n@unir.net) on 2020-06-16T08:17:03Z No. of bitstreams: 1 ijimai20153_5_10_pdf_21674.pdf: 706271 bytes, checksum: d741a43b18b7a104e8ecee4db2b77751 (MD5); Made available in DSpace on 2020-06-16T08:17:03Z (GMT). No. of bitstreams: 1 ijimai20153_5_10_pdf_21674.pdf: 706271 bytes, checksum: d741a43b18b7a104e8ecee4db2b77751 (MD5) https://reunir.unir.net/handle/123456789/10184 https://reunir.unir.net/handle/123456789/10180 A Network Based Methodology to Reveal Patterns in Knowledge Transfer López-Cruz, Orlando; Obregón N., Nelson This paper motivates, presents and demonstrates in use a methodology based in complex network analysis to support research aimed at identification of sources in the process of knowledge transfer at the interorganizational level. The importance of this methodology is that it states a unified model to reveal knowledge sharing patterns and to compare results from multiple researches on data from different periods of time and different sectors of the economy. This methodology does not address the underlying statistical processes. To do this, national statistics departments (NSD) provide documents and tools at their websites. But this proposal provides a guide to model information inferences gathered from data processing revealing links between sources and recipients of knowledge being transferred and that the recipient detects as main source to new knowledge creation. Some national statistics departments set as objective for these surveys the characterization of innovation dynamics in firms and to analyze the use of public support instruments. From this characterization scholars conduct different researches. Measures of dimensions of the network composed by manufacturing firms and other organizations conform the base to inquiry the structure that emerges from taking ideas from other organizations to incept innovations. These two sets of data are actors of a two- mode-network. The link between two actors (network nodes, one acting as the source of the idea. The second one acting as the destination) comes from organizations or events organized by organizations that “provide” ideas to other group of firms. The resulting demonstrated design satisfies the objective of being a methodological model to identify sources in knowledge transfer of knowledge effectively used in innovation. Submitted by Susana Figueroa Navarro (susana.figueroa.n@unir.net) on 2020-06-16T07:33:47Z No. of bitstreams: 1 ijimai20153_5_9_pdf_10691.pdf: 1076853 bytes, checksum: ac7cf72bbd9aceb20ba67bc06fcf7363 (MD5); Made available in DSpace on 2020-06-16T07:33:47Z (GMT). No. of bitstreams: 1 ijimai20153_5_9_pdf_10691.pdf: 1076853 bytes, checksum: ac7cf72bbd9aceb20ba67bc06fcf7363 (MD5) https://reunir.unir.net/handle/123456789/10180 https://reunir.unir.net/handle/123456789/10179 Agile Values and Their Implementation in Practice Schön, Eva-Maria; Escalona, Maria J.; Thomaschewski, Jörg Today agile approaches are often used for the development of digital products. Since their development in the 90s, Agile Methodologies, such as Scrum and Extreme Programming, have evolved. Team collaboration is strongly influenced by the values and principles of the Agile Manifesto. The values and principles described in the Agile Manifesto support the optimization of the development process. In this article, the current operation is analyzed in Agile Product Development Processes. Both, the cooperation in the project team and the understanding of the roles and tasks will be analyzed. The results are set in relation to the best practices of Agile Methodologies. A quantitative questionnaire related to best practices in Agile Product Development was developed. The study was carried out with 175 interdisciplinary participants from the IT industry. For the evaluation of the results, 93 participants were included who have expertise in the subject area Agile Methodologies. On one hand, it is shown that the collaborative development of product-related ideas brings benefits. On the other hand, it is investigated which effect a good understanding of the product has on decisions made during the implementation. Furthermore, the skillset of product managers, the use of pair programming, and the advantages of cross-functional teams are analyzed. Submitted by Susana Figueroa Navarro (susana.figueroa.n@unir.net) on 2020-06-16T06:32:11Z No. of bitstreams: 1 ijimai20153_5_8_pdf_59735.pdf: 835867 bytes, checksum: a8cec92c0016d7926ee9600c97c88910 (MD5); Made available in DSpace on 2020-06-16T06:32:11Z (GMT). No. of bitstreams: 1 ijimai20153_5_8_pdf_59735.pdf: 835867 bytes, checksum: a8cec92c0016d7926ee9600c97c88910 (MD5) https://reunir.unir.net/handle/123456789/10179 https://reunir.unir.net/handle/123456789/10178 Step Characterization using Sensor Information Fusion and Machine Learning Anacleto, Ricardo; Figueiredo, Lino A pedestrian inertial navigation system is typically used to suppress the Global Navigation Satellite System limitation to track persons in indoor or in dense environments. However, low- cost inertial systems provide huge location estimation errors due to sensors and pedestrian dead reckoning inherent characteristics. To suppress some of these errors we propose a system that uses two inertial measurement units spread in person’s body, which measurements are aggregated using learning algorithms that learn the gait behaviors. In this work we present our results on using different machine learning algorithms which are used to characterize the step according to its direction and length. This characterization is then used to adapt the navigation algorithm according to the performed classifications. Submitted by Susana Figueroa Navarro (susana.figueroa.n@unir.net) on 2020-06-15T10:34:49Z No. of bitstreams: 1 ijimai20153_5_7_pdf_23101.pdf: 937011 bytes, checksum: 3d715901115edfac965fe80fbdd2d6de (MD5); Made available in DSpace on 2020-06-15T10:34:50Z (GMT). No. of bitstreams: 1 ijimai20153_5_7_pdf_23101.pdf: 937011 bytes, checksum: 3d715901115edfac965fe80fbdd2d6de (MD5) https://reunir.unir.net/handle/123456789/10178 https://reunir.unir.net/handle/123456789/10177 Building Real-Time Collaborative Applications with a Federated Architecture Ojanguren-Menendez, Pablo; Tenorio-Fornés, Antonio; Hassan, Samer Real-time collaboration is being offered by multiple libraries and APIs (Google Drive Real-time API, Microsoft Real-Time Communications API, TogetherJS, ShareJS), rapidly becoming a mainstream option for webservices developers. However, they are offered as centralised services running in a single server, regardless if they are free/open source or proprietary software. After re-engineering Apache Wave (former Google Wave), we can now provide the first decentralised and federated free/open source alternative. The new API allows to develop new real-time collaborative web applications in both JavaScript and Java environments. Submitted by Susana Figueroa Navarro (susana.figueroa.n@unir.net) on 2020-06-15T09:25:34Z No. of bitstreams: 1 ijimai20153_5_6_pdf_99256.pdf: 855113 bytes, checksum: af141b161a59ffe10aa0cd17e72dc976 (MD5); Made available in DSpace on 2020-06-15T09:25:34Z (GMT). No. of bitstreams: 1 ijimai20153_5_6_pdf_99256.pdf: 855113 bytes, checksum: af141b161a59ffe10aa0cd17e72dc976 (MD5) https://reunir.unir.net/handle/123456789/10177 https://reunir.unir.net/handle/123456789/10173 “Wrapping” X3DOM around Web Audio API Stamoulias, Andreas; Lakka, Eftychia; Malamos, Athanasios Spatial sound has a conceptual role in the Web3D environments, due to highly realism scenes that can provide. Lately the efforts are concentrated on the extension of the X3D/ X3DOM through spatial sound attributes. This paper presents a novel method for the introduction of spatial sound components in the X3DOM framework, based on X3D specification and Web Audio API. The proposed method incorporates the introduction of enhanced sound nodes for X3DOM which are derived by the implementation of the X3D standard components, enriched with accessional features of Web Audio API. Moreover, several examples-scenarios developed for the evaluation of our approach. The implemented examples established the achievability of new registered nodes in X3DOM, for spatial sound characteristics in Web3D virtual worlds. Submitted by Susana Figueroa Navarro (susana.figueroa.n@unir.net) on 2020-06-12T11:20:44Z No. of bitstreams: 1 ijimai20153_5_5_pdf_26535.pdf: 1170250 bytes, checksum: 9133cb879b5b13716ad53f373ce8e69a (MD5); Made available in DSpace on 2020-06-12T11:20:44Z (GMT). No. of bitstreams: 1 ijimai20153_5_5_pdf_26535.pdf: 1170250 bytes, checksum: 9133cb879b5b13716ad53f373ce8e69a (MD5) https://reunir.unir.net/handle/123456789/10173 https://reunir.unir.net/handle/123456789/10172 Checking RTECTL properties of STSs via SMT-based Bounded Model Checking Zbrzezny, Agnieszka; Zbrzezny, Andrzej We present an SMT-based bounded model checking (BMC) method for Simply-Timed Systems (STSs) and for the existential fragment of the Real-time Computation Tree Logic. We implemented the SMT-based BMC algorithm and compared it with the SAT-based BMC method for the same systems and the same property language on several benchmarks for STSs. For the SAT- based BMC we used the PicoSAT solver and for the SMT-based BMC we used the Z3 solver. The experimental results show that the SMT-based BMC performs quite well and is, in fact, sometimes significantly faster than the tested SAT-based BMC. Submitted by Susana Figueroa Navarro (susana.figueroa.n@unir.net) on 2020-06-12T10:51:19Z No. of bitstreams: 1 ijimai20153_5_4_pdf_87485.pdf: 2305850 bytes, checksum: a8ecf820c7ea6d56ba1cad6581d09a4c (MD5); Made available in DSpace on 2020-06-12T10:51:19Z (GMT). No. of bitstreams: 1 ijimai20153_5_4_pdf_87485.pdf: 2305850 bytes, checksum: a8ecf820c7ea6d56ba1cad6581d09a4c (MD5) https://reunir.unir.net/handle/123456789/10172 https://reunir.unir.net/handle/123456789/10171 An Automated Negotiation-based Framework via Multi-Agent System for the Construction Domain Mahmoud, Moamin A.; Sharifuddin Ahmad, Mohd; Zaliman Yuso, Mohd; Idrus, Arazi In this paper, we propose an automated multi-agent negotiation framework for decision making in the construction domain. It enables software agents to conduct negotiations and autonomously make decisions. The proposed framework consists of two types of components, internal and external. Internal components are integrated into the agent architecture while the external components are blended within the environment to facilitate the negotiation process. The internal components are negotiation algorithm, negotiation style, negotiation protocol, and solution generators. The external components are the negotiation base and the conflict resolution algorithm. We also discuss the decision making process flow in such system. There are three main processes in decision making for specific projects, which are propose solutions, negotiate solutions and handling conflict outcomes (conflict resolution). We finally present the proposed architecture that enables software agents to conduct automated negotiation in the construction domain. Submitted by Susana Figueroa Navarro (susana.figueroa.n@unir.net) on 2020-06-12T10:15:39Z No. of bitstreams: 1 ijimai20153_5_3_pdf_28774.pdf: 855986 bytes, checksum: d42d07fa1c1ba8a166d3ca6e26aa5d29 (MD5); Made available in DSpace on 2020-06-12T10:15:39Z (GMT). No. of bitstreams: 1 ijimai20153_5_3_pdf_28774.pdf: 855986 bytes, checksum: d42d07fa1c1ba8a166d3ca6e26aa5d29 (MD5) https://reunir.unir.net/handle/123456789/10171 https://reunir.unir.net/handle/123456789/10170 A New Approach for Hiding Image Based on the Signature of Coeficients Al-asadi, Tawfiq A.; Hadi Ali, Israa; kareem Abdul Abdul Abdul kadhem, kadhem This paper presents a new approach for hiding the secret image inside another image file, depending on the signature of coefficients. The proposed system consists of two general stages. The first one is the hiding stage which consist of the following steps (Read the cover image and message image, Block collections using the chain code and similarity measure, Apply DCT Transform, Signature of coefficients, Hiding algorithm , Save information of block in boundary, Reconstruct block to stego image and checking process). The second stage is extraction stage which consist of the following steps ( read the stego image, Extract information of block from boundary, Block collection, Apply DCT transform, Extract bits of message and save it to buffer, Extracting message). Submitted by Susana Figueroa Navarro (susana.figueroa.n@unir.net) on 2020-06-12T09:38:27Z No. of bitstreams: 1 ijimai20153_5_2_pdf_10078.pdf: 2070096 bytes, checksum: 62e0646fe614a8ebd62080d54f1852ce (MD5); Made available in DSpace on 2020-06-12T09:38:27Z (GMT). No. of bitstreams: 1 ijimai20153_5_2_pdf_10078.pdf: 2070096 bytes, checksum: 62e0646fe614a8ebd62080d54f1852ce (MD5) https://reunir.unir.net/handle/123456789/10170 https://reunir.unir.net/handle/123456789/10169 Towards a Standard-based Domain-specific Platform to Solve Machine Learning-based Problems Cueva-Lovelle, Juan Manuel; García-Díaz, Vicente; Pelayo García-Bustelo, B. Cristina; Pascual-Espada, Jordán Machine learning is one of the most important subfields of computer science and can be used to solve a variety of interesting artificial intelligence problems. There are different languages, framework and tools to define the data needed to solve machine learning-based problems. However, there is a great number of very diverse alternatives which makes it difficult the intercommunication, portability and re-usability of the definitions, designs or algorithms that any developer may create. In this paper, we take the first step towards a language and a development environment independent of the underlying technologies, allowing developers to design solutions to solve machine learning-based problems in a simple and fast way, automatically generating code for other technologies. That can be considered a transparent bridge among current technologies. We rely on Model-Driven Engineering approach, focusing on the creation of models to abstract the definition of artifacts from the underlying technologies. Submitted by Susana Figueroa Navarro (susana.figueroa.n@unir.net) on 2020-06-12T09:23:03Z No. of bitstreams: 1 ijimai20153_5_1_pdf_15294.pdf: 816057 bytes, checksum: 4c2443e753a6fcd4309d08c195478608 (MD5); Made available in DSpace on 2020-06-12T09:23:03Z (GMT). No. of bitstreams: 1 ijimai20153_5_1_pdf_15294.pdf: 816057 bytes, checksum: 4c2443e753a6fcd4309d08c195478608 (MD5) https://reunir.unir.net/handle/123456789/10169 https://reunir.unir.net/handle/123456789/10168 IJIMAI Editor's Note - Vol. 3 Issue 5 González-Crespo, Rubén The research works presented in this issue are based on various topics of interest, among which are included: DSL, Machine Learning, Information hiding, Steganography, SMA, RTECTL, SMT-based bounded model checking, STS, Spatial sound, X3D, X3DOM, Web Audio API, Web3D, Real-time, Realistic 3D, 3D Audio, Apache Wave, API, Collaborative, Pedestrian Inertial, Navigation System, Indoor Location, Learning Algorithms, Information Fusion, Agile development, Scrum, Cross Functional Teams, Knowledge Transfer, Technological Innovation, Technology Transfer, Social Networks Analysis, Project Management, Links in Social Networks, Rights of Knowledge Sharing and Web 2.0. Submitted by Susana Figueroa Navarro (susana.figueroa.n@unir.net) on 2020-06-12T08:56:53Z No. of bitstreams: 1 ijimai20153_5_0_pdf_21755.pdf: 491838 bytes, checksum: cdacceee6f8ac7d390a3fae8f321d0ff (MD5); Made available in DSpace on 2020-06-12T08:56:53Z (GMT). No. of bitstreams: 1 ijimai20153_5_0_pdf_21755.pdf: 491838 bytes, checksum: cdacceee6f8ac7d390a3fae8f321d0ff (MD5) https://reunir.unir.net/handle/123456789/10168 https://reunir.unir.net/handle/123456789/10166 Ball convergence for Steffensen-type fourth-order methods Argyros, Ioannis K; George, Santhosh We present a local convergence analysis for a family of Steffensen-type fourth-order methods in order to approximate a solution of a nonlinear equation. We use hypotheses up to the first derivative in contrast to earlier studies such as [1], [5]-[28] using hypotheses up to the fifth derivative. This way the applicability of these methods is extended under weaker hypotheses. Moreover the radius of convergence and computable error bounds on the distances involved are also given in this study. Numerical examples are also presented in this study. Submitted by Susana Figueroa Navarro (susana.figueroa.n@unir.net) on 2020-06-12T07:59:05Z No. of bitstreams: 1 ijimai20153_4_7_pdf_73265.pdf: 10709146 bytes, checksum: feea520053c5a3973a14648ac472fe5b (MD5); Made available in DSpace on 2020-06-12T07:59:05Z (GMT). No. of bitstreams: 1 ijimai20153_4_7_pdf_73265.pdf: 10709146 bytes, checksum: feea520053c5a3973a14648ac472fe5b (MD5) https://reunir.unir.net/handle/123456789/10166 https://reunir.unir.net/handle/123456789/10164 Towards a better learning models through OCWs and MOOCs Cordero, Alicia; Jordán, Cristina; Sanabria-Codesal, E.; Torregrosa, Juan Ramón echnological advances of XXth century have induced a profound change in society and, therefore, in the high education. Internet supposed a qualitative difference, as information and digital images flooded into homes around the world. The Universitat Politècnica de València (UPV) is a medium sized university of Spain that has been involved in the development of digital video content (Polimedia) to support teaching processes for several years. Joint with Polimedia and other learning objects (virtual laboratories, applets, etc.), the UPV promoted the construction of OCWs. Along with the improvement of technology, MOOCs appeared as e-learning material. In this work, we analyze the advantages and drawbacks of OCWs and MOOCs when they are used in our classroom. This experience has led us to incorporate in our methodology the flip teaching. Submitted by Susana Figueroa Navarro (susana.figueroa.n@unir.net) on 2020-06-12T07:09:02Z No. of bitstreams: 1 ijimai20153_4_5_pdf_16920.pdf: 2300813 bytes, checksum: f1da2b79c22fc8b8a2778be565e28e9c (MD5); Made available in DSpace on 2020-06-12T07:09:02Z (GMT). No. of bitstreams: 1 ijimai20153_4_5_pdf_16920.pdf: 2300813 bytes, checksum: f1da2b79c22fc8b8a2778be565e28e9c (MD5) https://reunir.unir.net/handle/123456789/10164 https://reunir.unir.net/handle/123456789/10161 Local Convergence for an Improved Jarratt-type Method in Banach Space Argyros, Ioannis K; González, Daniel We present a local convergence analysis for an improved Jarratt-type methods of order at least five to approximate a solution of a nonlinear equation in a Banach space setting. The convergence ball and error estimates are given using hypotheses up to the first Fréchet derivative in contrast to earlier studies using hypotheses up to the third Fréchet derivative. Numerical examples are also provided in this study, where the older hypotheses are not satisfied to solve equations but the new hypotheses are satisfied. Submitted by Susana Figueroa Navarro (susana.figueroa.n@unir.net) on 2020-06-10T10:15:33Z No. of bitstreams: 1 ijimai20153_4_4_pdf_25787.pdf: 3087468 bytes, checksum: 038e2ee8f72a348a09b9d233178f4fe1 (MD5); Made available in DSpace on 2020-06-10T10:15:33Z (GMT). No. of bitstreams: 1 ijimai20153_4_4_pdf_25787.pdf: 3087468 bytes, checksum: 038e2ee8f72a348a09b9d233178f4fe1 (MD5) https://reunir.unir.net/handle/123456789/10161 https://reunir.unir.net/handle/123456789/10160 Unifying the Classical Approach with New Technologies: An Innovative Proposal for Teaching Mathematics in Engineering Amat, Sergio; Busquier, Sonia; Legaz, Mª José; Ruiz, Juan The aim of this paper is to present a teaching experience developed in the Polytechnic University of Cartagena and, more specifically, in the subject of Mathematical Methods Applied to Civil Engineering, that belongs to the Master Degree of Paths, Channels and Ports. Our classes were a mix between the traditional system and the new educational system. Moreover, we tried to adapt the evaluation process to the new European Framework for Higher Education. We have used videos developed by us and by students in our classes. We have noticed that the interest and motivation in class has grown. Also the grades have improved. We did a survey during this academic year and the results were strongly positive for both students and teachers. Submitted by Susana Figueroa Navarro (susana.figueroa.n@unir.net) on 2020-06-10T08:42:38Z No. of bitstreams: 1 ijimai20153_4_3_pdf_19755.pdf: 1333099 bytes, checksum: 5913c7a2618354a3379cd9f6e92c9f9d (MD5); Made available in DSpace on 2020-06-10T08:42:38Z (GMT). No. of bitstreams: 1 ijimai20153_4_3_pdf_19755.pdf: 1333099 bytes, checksum: 5913c7a2618354a3379cd9f6e92c9f9d (MD5) https://reunir.unir.net/handle/123456789/10160 https://reunir.unir.net/handle/123456789/10159 IJIMAI Editor's Note - Vol. 3 Issue 4 Magreñán, Á. Alberto This special issue, Teaching Mathematics using new and classic tools, concentrates on the practical and experimental teaching in advanced Mathematics in Engineering. The selected papers deal with the most relevant issues in the field, such as Mathematical learning and other different subjects in which Mathematics are needed, Advanced Mathematics, the development of different studied using Masive Open Online courser (MOOCs) or even the history of E-Learning and Mathematics. The result is a collection of experimental validations, mathematical papers and MOOCs studies which constitutes a clear contribution to the state of the art. Submitted by Susana Figueroa Navarro (susana.figueroa.n@unir.net) on 2020-06-10T07:56:50Z No. of bitstreams: 1 ijimai20153_4_0_pdf_73085.pdf: 545523 bytes, checksum: d3e287f9a4c9556424e60c13b04af8e8 (MD5); Made available in DSpace on 2020-06-10T07:56:50Z (GMT). No. of bitstreams: 1 ijimai20153_4_0_pdf_73085.pdf: 545523 bytes, checksum: d3e287f9a4c9556424e60c13b04af8e8 (MD5) https://reunir.unir.net/handle/123456789/10159 https://reunir.unir.net/handle/123456789/10153 An Architecture Approach for 3D Render Distribution using Mobile Devices in Real Time Bolívar, Holman; Velandia, John Alexande; Torres, Jenny Natalia; Giménez de Ory, Elena Nowadays, video games such as Massively Multiplayer Online Game (MMOG) have become cultural mediators. Mobile games contribute to a large number of downloads and potential benefits in the applications market. Although processing power of mobile devices increases the bandwidth transmission, a poor network connectivity may bottleneck Gaming as a Service (GaaS). In order to enhance performance in digital ecosystem, processing tasks are distributed among thin client devices and robust servers. This research is based on the method ‘divide and rule’, that is, volumetric surfaces are subdivided using a tree-KD of sequence of scenes in a game, so reducing the surface into small sets of points. Reconstruction efficiency is improved, because the search of data is performed in local and small regions. Processes are modeled through a finite set of states that are built using Hidden Markov Models with domains configured by heuristics. Six test that control the states of each heuristic, including the number of intervals are carried out to validate the proposed model. This validation concludes that the proposed model optimizes response frames per second, in a sequence of interactions. Submitted by Susana Figueroa Navarro (susana.figueroa.n@unir.net) on 2020-06-08T12:01:23Z No. of bitstreams: 1 ijimai20153_3_7_pdf_27908.pdf: 1211301 bytes, checksum: c0f674f00e028f9905dda6ba2f18079a (MD5); Made available in DSpace on 2020-06-08T12:01:23Z (GMT). No. of bitstreams: 1 ijimai20153_3_7_pdf_27908.pdf: 1211301 bytes, checksum: c0f674f00e028f9905dda6ba2f18079a (MD5) https://reunir.unir.net/handle/123456789/10153 https://reunir.unir.net/handle/123456789/10152 The Use of Genetic Algorithms in UV Disinfection of Drinking Water Zaldaña, Hugo R.; Castañeda, Emerson In order to have drinking water, some countries have to use chlorine. It is use cause is effective and it’s cheap. An alternative to this process is the UV disinfection of drinking water. Most of the devices in the market use UV bulbs or mercury lamps. The UV LED, which is cheaper and smaller, allows creating new smaller devices. The main contribution of this paper is the use of Genetic Algorithms to help design a drinking water device with UV LEDs. Submitted by Susana Figueroa Navarro (susana.figueroa.n@unir.net) on 2020-06-08T10:00:24Z No. of bitstreams: 1 ijimai20153_3_5_pdf_13955.pdf: 761367 bytes, checksum: e0ff2e4f15f21eab5a01b3b5af704888 (MD5); Made available in DSpace on 2020-06-08T10:00:24Z (GMT). No. of bitstreams: 1 ijimai20153_3_5_pdf_13955.pdf: 761367 bytes, checksum: e0ff2e4f15f21eab5a01b3b5af704888 (MD5) https://reunir.unir.net/handle/123456789/10152 https://reunir.unir.net/handle/123456789/10151 OpinAIS: An Artificial Immune System-based Framework for Opinion Mining Baldominos, Alejandro; Luis Mingueza, Nerea; García del Pozo, Mª Cristina This paper proposes the design of an evolutionary algorithm for building classifiers specifically aimed towards performing classification and sentiment analysis over texts. Moreover, it has properties taken from Artificial Immune Systems, as it tries to resemble biological systems since they are able to discriminate harmful from innocuous bodies (in this case, the analogy could be established with negative and positive texts respectively). A framework, namely OpinAIS, is developed around the evolutionary algorithm, which makes it possible to distribute it as an open-source tool, which enables the scientific community both to extend it and improve it. The framework is evaluated with two different public datasets, the first involving voting records for the US Congress and the second consisting in a Twitter corpus with tweets about different technology brands, which can be polarized either towards positive or negative feelings; comparing the results with alternative machine learning techniques and concluding with encouraging results. Additionally, as the framework is publicly available for download, researchers can replicate the experiments from this paper or propose new ones. Submitted by Susana Figueroa Navarro (susana.figueroa.n@unir.net) on 2020-06-08T07:52:04Z No. of bitstreams: 1 ijimai20153_3_3_pdf_25958.pdf: 736708 bytes, checksum: dd6aa7fabf8fe7072ca349ba0352ebcc (MD5); Made available in DSpace on 2020-06-08T07:52:04Z (GMT). No. of bitstreams: 1 ijimai20153_3_3_pdf_25958.pdf: 736708 bytes, checksum: dd6aa7fabf8fe7072ca349ba0352ebcc (MD5) https://reunir.unir.net/handle/123456789/10151 https://reunir.unir.net/handle/123456789/10147 Using Local Grammar for Entity Extraction from Clinical Reports Ghoulam, Aicha; Barigou, Fatiha; Belalem, Ghalem; Meziane, Farid Information Extraction (IE) is a natural language processing (NLP) task whose aim is to analyze texts written in natural language to extract structured and useful information such as named entities and semantic relations linking these entities. Information extraction is an important task for many applications such as bio-medical literature mining, customer care, community websites, and personal information management. The increasing information available in patient clinical reports is difficult to access. As it is often in an unstructured text form, doctors need tools to enable them access to this information and the ability to search it. Hence, a system for extracting this information in a structured form can benefits healthcare professionals. The work presented in this paper uses a local grammar approach to extract medical named entities from French patient clinical reports. Experimental results show that the proposed approach achieved an F-Measure of 90. 06%. Submitted by Susana Figueroa Navarro (susana.figueroa.n@unir.net) on 2020-06-05T11:34:13Z No. of bitstreams: 1 ijimai20153_3_2_pdf_97545.pdf: 1023272 bytes, checksum: 30de4da55f4613acdd2fd10922479c81 (MD5); Made available in DSpace on 2020-06-05T11:34:13Z (GMT). No. of bitstreams: 1 ijimai20153_3_2_pdf_97545.pdf: 1023272 bytes, checksum: 30de4da55f4613acdd2fd10922479c81 (MD5) https://reunir.unir.net/handle/123456789/10147 https://reunir.unir.net/handle/123456789/10146 A 3D Visual Interface for Critiquing-based Recommenders: Architecture and Interaction Contreras, David; Salamó, Maria; Rodríguez, Inmaculada; Puig, Anna Nowadays e-commerce websites offer users such a huge amount of products, which far from facilitating the buying process, actually make it more difficult. Hence, recommenders, which learn from users’ preferences, are consolidating as valuable instruments to enhance the buying process in the 2D Web. Indeed, 3D virtual environments are an alternative interface for recommenders. They provide the user with an immersive 3D social experience, enabling a richer visualisation and increasing the interaction possibilities with other users and with the recommender. In this paper, we focus on a novel framework to tightly integrate interactive recommendation systems in a 3D virtual environment. Specifically, we propose to integrate a Collaborative Conversational Recommender (CCR) in a 3D social virtual world. Our CCR Framework defines three layers: the user interaction layer (3D Collaborative Space Client), the communication layer (3D Collaborative Space Server), and the recommendation layer (Collaborative Conversational Recommender). Additionally, we evaluate the framework based on several usability criteria such as learnability, perceived efficiency and effectiveness. Results demonstrate that users positively valued the experience. Submitted by Susana Figueroa Navarro (susana.figueroa.n@unir.net) on 2020-06-05T10:42:43Z No. of bitstreams: 1 ijimai20153_3_1_pdf_15723.pdf: 841284 bytes, checksum: 407c808f63e2be8f29f55d3758102331 (MD5); Made available in DSpace on 2020-06-05T10:42:43Z (GMT). No. of bitstreams: 1 ijimai20153_3_1_pdf_15723.pdf: 841284 bytes, checksum: 407c808f63e2be8f29f55d3758102331 (MD5) https://reunir.unir.net/handle/123456789/10146 https://reunir.unir.net/handle/123456789/10086 Recognizing Human Activities Based on Wearable Inertial Measurements - Methods and Applications Siirtola, Pekka On April 10 of 2015 Pekka Siirtola defended his PhD thesis, called “Recognizing Human Activities Based on Wearable Inertial Measurements - Methods and Applications” [1]. The thesis was supervised by Professor Juha Röning and pre-eximined by Associate Professors Ulf Johansson from University of Borås, Sweden, and Daniel Roggen from University of Sussex, United Kingdom. Pekka Siirtola successfully defended his thesis against his opponent Professor Barbara Hammer from University of Bielefeld, Germany. This publicly open defence was held in Auditorium TS101 at University of Oulu, Finland. Submitted by Susana Figueroa Navarro (susana.figueroa.n@unir.net) on 2020-05-21T11:47:17Z No. of bitstreams: 1 ijimai20153_3_6_pdf_11970.pdf: 268079 bytes, checksum: 0508e6396dda7e74e61f6982cdda853f (MD5); Made available in DSpace on 2020-05-21T11:47:17Z (GMT). No. of bitstreams: 1 ijimai20153_3_6_pdf_11970.pdf: 268079 bytes, checksum: 0508e6396dda7e74e61f6982cdda853f (MD5) https://reunir.unir.net/handle/123456789/10086 https://reunir.unir.net/handle/123456789/10019 Variation of the Heartbeat and Activity as an Indicator of Drowsiness at the Wheel Using a Smartwatch Ríos Aguilar, Sergio; Miguel Merino, José Luis; Millán Sánchez, Andrés; Sánchez Valdivieso, Álvaro Sleepiness is one of the first causal factors of accidents. An estimated 10-30% of road deaths are related to fatigue driving. A large number of research studies have been conducted to reduce the risk of accidents while driving. Many of these studies are based on the detection of biological signals by drowsiness/sleepiness. The activity of the autonomic nervous system (ANS) presented alterations during different physical states such as stress or sleepiness. This activity is measured by ECG (electroencephalogram) and, in different studies, it can be measured with the variation of the heart beat (HRV-Heart Rate Variability) in order to analyze it and then detect drowsiness/sleepiness in drivers. The main advantage is that HRV can be performed using non invasive and uncomfortable means compared to EEG sensors. New Wearables technologies are capable of measuring the heart beat and, further, using other sensors like Accelerometer and Gyroscope, embedded on a simple clock allow us to monitor the physical activity of the user. Our main goal is to use the pulsations measurements in conjunction with the physical activity for the detection of driver drowsiness/sleepiness in advance in order to prevent accidents derived from fatigue. Submitted by Susana Figueroa Navarro (susana.figueroa.n@unir.net) on 2020-04-30T11:31:17Z No. of bitstreams: 1 ijimai20153_3_13_pdf_21406.pdf: 567666 bytes, checksum: fac1a68cde22feccadb1b94f23869944 (MD5); Made available in DSpace on 2020-04-30T11:31:17Z (GMT). No. of bitstreams: 1 ijimai20153_3_13_pdf_21406.pdf: 567666 bytes, checksum: fac1a68cde22feccadb1b94f23869944 (MD5) https://reunir.unir.net/handle/123456789/10019 https://reunir.unir.net/handle/123456789/10018 Formalization of Event Perception and Event Appraisal Process Jain, Shikha; Asawa, Krishna Integration of emotion in a virtual agent is a topic of research to depict human-like behavior in a simulated environment. For the last few decades, many researchers are working in the field of incorporating emotions in a virtual agent. In the emotion model, the behavior of an agent depends upon how the event is perceived by the agent with respect to the goal. Hence, perception of the event while considering the past experience, importance of event towards achieving goal, agent’s own capabilities and resources is an important process which directly influences the decision making and action selection. The proposed models, till date, are either too complex to adapt or are using a very few parameters to describe the event. So, in this paper, we propose an extension of perception process in an existing emotion model, EMIA and suggest the formalization of event perception and appraisal processes to make it adaptable. This has been carried out using five parameters for event description along-with fuzzy logic which makes the process more effective yet simple. Submitted by Susana Figueroa Navarro (susana.figueroa.n@unir.net) on 2020-04-30T08:49:57Z No. of bitstreams: 1 ijimai20153_3_9_pdf_30653.pdf: 530833 bytes, checksum: b7af708588dc8ebbd79b4b466e1e9daa (MD5); Made available in DSpace on 2020-04-30T08:49:57Z (GMT). No. of bitstreams: 1 ijimai20153_3_9_pdf_30653.pdf: 530833 bytes, checksum: b7af708588dc8ebbd79b4b466e1e9daa (MD5) https://reunir.unir.net/handle/123456789/10018 https://reunir.unir.net/handle/123456789/10017 Security Framework for Agent-Based Cloud Computing Venkateshwaran, K.; Malviya, Anu; Dikshit, Utkarsha; Venkatesan, S. Agent can play a key role in bringing suitable cloud services to the customer based on their requirements. In agent based cloud computing, agent does negotiation, coordination, cooperation and collaboration on behalf of the customer to make the decisions in efficient manner. However the agent based cloud computing have some security issues like (a.) addition of malicious agent in the cloud environment which could demolish the process by attacking other agents, (b.) denial of service by creating flooding attacks on other involved agents. (c.) Some of the exceptions in the agent interaction protocol such as Not-Understood and Cancel_Meta protocol can be misused and may lead to terminating the connection of all the other agents participating in the negotiating services. Also, this paper proposes algorithms to solve these issues to ensure that there will be no intervention of any malicious activities during the agent interaction. Submitted by Susana Figueroa Navarro (susana.figueroa.n@unir.net) on 2020-04-30T08:19:40Z No. of bitstreams: 1 ijimai20153_3_4_pdf_21054.pdf: 820069 bytes, checksum: dadeb6f6f5cefb08422a07c3b656c83b (MD5); Made available in DSpace on 2020-04-30T08:19:40Z (GMT). No. of bitstreams: 1 ijimai20153_3_4_pdf_21054.pdf: 820069 bytes, checksum: dadeb6f6f5cefb08422a07c3b656c83b (MD5) https://reunir.unir.net/handle/123456789/10017 https://reunir.unir.net/handle/123456789/10016 Swift vs. Objective-C: A New Programming Language González García, Cristian; Pascual Espada, Jordán; Pelayo García-Bustelo, B. Cristina; Cueva Lovelle, Juan Manuel The appearance of a new programming language gives the necessity to contrast its contribution with the existing programming languages to evaluate the novelties and improvements that the new programming language offers for developers. These kind of studies can show us the efficiency, improvements and useful or uselessness of the new programming languages. Also these studies can show us the good or bad properties of the existing programming languages. For these reasons, these studies allow us to know if the new programming language is offering improvements or relapses. In this article, we compare the new programming language of Apple, Swift, with the main programming language of Apple before Swift, Objective-C. We are going to show the differences, characteristics and novelties to verify the words of Apple about Swift. With that we want to answer the next question: Is Swift a new programming language easier, more secure and quicker to develop than Objective-C? Submitted by Susana Figueroa Navarro (susana.figueroa.n@unir.net) on 2020-04-30T07:33:57Z No. of bitstreams: 1 ijimai20153_3_10_pdf_19818.pdf: 571480 bytes, checksum: 06479916f91cccccf6a804269633ecb4 (MD5); Made available in DSpace on 2020-04-30T07:33:57Z (GMT). No. of bitstreams: 1 ijimai20153_3_10_pdf_19818.pdf: 571480 bytes, checksum: 06479916f91cccccf6a804269633ecb4 (MD5) https://reunir.unir.net/handle/123456789/10016 https://reunir.unir.net/handle/123456789/10015 IJIMAI Editor's Note - Vol. 3 Issue 3 Montenegro-Marin, Carlos Enrique The research works presented in this issue are based on various topics of interest, among which are included: 3D Interface, Information Extraction, Artificial immune system, Security in Cloud Computing, Genetic Algorithm, Activity recognition, 3D Render Distribution, Software visualization, Event Perception, New Programming Language, Distributed computing, MOOC environments, etc. Submitted by Susana Figueroa Navarro (susana.figueroa.n@unir.net) on 2020-04-30T07:03:58Z No. of bitstreams: 1 ijimai20153_3_0_pdf_91265.pdf: 149997 bytes, checksum: 632499a44f9b6aa991aeb8edf13a1a9c (MD5); Made available in DSpace on 2020-04-30T07:03:58Z (GMT). No. of bitstreams: 1 ijimai20153_3_0_pdf_91265.pdf: 149997 bytes, checksum: 632499a44f9b6aa991aeb8edf13a1a9c (MD5) https://reunir.unir.net/handle/123456789/10015 https://reunir.unir.net/handle/123456789/9999 GPGPU Implementation of a Genetic Algorithm for Stereo Refinement Arranz, Álvaro; Alvar, Manuel During the last decade, the general-purpose computing on graphics processing units Graphics (GPGPU) has turned out to be a useful tool for speeding up many scientific calculations. Computer vision is known to be one of the fields with more penetration of these new techniques. This paper explores the advantages of using GPGPU implementation to speedup a genetic algorithm used for stereo refinement. The main contribution of this paper is analyzing which genetic operators take advantage of a parallel approach and the description of an efficient state- of-the-art implementation for each one. As a result, speed-ups close to x80 can be achieved, demonstrating to be the only way of achieving close to real-time performance. Submitted by Susana Figueroa Navarro (susana.figueroa.n@unir.net) on 2020-04-23T07:40:09Z No. of bitstreams: 1 ijimai20143_2_9_pdf_91775.pdf: 1166781 bytes, checksum: f80fa87cd7d8537f083c9ad6a8f0ad4a (MD5); Made available in DSpace on 2020-04-23T07:40:09Z (GMT). No. of bitstreams: 1 ijimai20143_2_9_pdf_91775.pdf: 1166781 bytes, checksum: f80fa87cd7d8537f083c9ad6a8f0ad4a (MD5) https://reunir.unir.net/handle/123456789/9999 https://reunir.unir.net/handle/123456789/9996 Empirical Comparison of Graph-based Recommendation Engines for an Apps Ecosystem Chiroque, Luis F.; Cordobés, Héctor; Fernández Anta, Antonio; García Leiva, Rafael A; Morere, Philippe; Ornella, Lorenzo; Pérez, Fernando; Santos, Agustín Recommendation engines (RE) are becoming highly popular, e.g., in the area of e-commerce. A RE offers new items (products or content) to users based on their profile and historical data. The most popular algorithms used in RE are based on collaborative filtering. This technique makes recommendations based on the past behavior of other users and the similarity between users and items. In this paper we have evaluated the performance of several RE based on the properties of the networks formed by users and items. The RE use in a novel way graph theoretic concepts like edges weights or network flow. The evaluation has been conducted in a real environment (ecosystem) for recommending apps to smartphone users. The analysis of the results allows concluding that the effectiveness of a RE can be improved if the age of the data, and if a global view of the data is considered. It also shows that graph-based RE are effective, but more experiments are required for a more accurate characterization of their properties. Submitted by Susana Figueroa Navarro (susana.figueroa.n@unir.net) on 2020-04-23T06:26:41Z No. of bitstreams: 1 ijimai20143_2_4_pdf_92465.pdf: 667785 bytes, checksum: 87d5e9c0890e250a8433d1c1197c9939 (MD5); Made available in DSpace on 2020-04-23T06:26:41Z (GMT). No. of bitstreams: 1 ijimai20143_2_4_pdf_92465.pdf: 667785 bytes, checksum: 87d5e9c0890e250a8433d1c1197c9939 (MD5) https://reunir.unir.net/handle/123456789/9996 https://reunir.unir.net/handle/123456789/9994 Editor's Note Mochón, F.; Gonzalvez-Cabañas, J.C. The term 'Digital Economy' was coined for the first time by Don Tapscott in 1995 in his best-seller The Digital Economy: Promise and Peril in the Age of Networked Intelligence. When he wrote the book 20 years ago, he announced how he thought the Internet would fully transform the nature of business and government. We have now extended the concept, illustrating how digital technologies are rapidly transforming business practices, the economy and societies. Technology, and its impact on business strategy and society, continues to rise in importance. The Digital Economy, sometimes also called “Digital Business” has become a philosophy for many top executive teams as they seek competitive advantages in a world of fast moving technological change. When we talk about digital technologies, we are not only talking about the internet, nor only ICT (Information and Communications Technology), but other concepts such as mobile, telecommunications or content. The digital economy is by no means an exclusively economic concept. Therefore, it might be more appropriate to speak of digital society or digital technology. What matters is that digital is a transverse concept that affects individuals, businesses and public administrations. Submitted by Susana Figueroa Navarro (susana.figueroa.n@unir.net) on 2020-04-22T09:21:44Z No. of bitstreams: 1 ijimai20143_2_0_pdf_24753.pdf: 266741 bytes, checksum: 8aa1a1d9d285168d11cc1f1f5061a085 (MD5); Made available in DSpace on 2020-04-22T09:21:44Z (GMT). No. of bitstreams: 1 ijimai20143_2_0_pdf_24753.pdf: 266741 bytes, checksum: 8aa1a1d9d285168d11cc1f1f5061a085 (MD5) https://reunir.unir.net/handle/123456789/9994 https://reunir.unir.net/handle/123456789/9988 Procedural Content Generation for Real-Time Strategy Games Lara-Cabrera, Raúl; Nogueira-Collazo, Mariela; Cotta, Carlos; Fernández-Leiva, Antonio J. Videogames are one of the most important and profitable sectors in the industry of entertainment. Nowadays, the creation of a videogame is often a large-scale endeavor and bears many similarities with, e.g., movie production. On the central tasks in the development of a videogame is content generation, namely the definition of maps, terrains, non-player characters (NPCs) and other graphical, musical and AI-related components of the game. Such generation is costly due to its complexity, the great amount of work required and the need of specialized manpower. Hence the relevance of optimizing the process and alleviating costs. In this sense, procedural content generation (PCG) comes in handy as a means of reducing costs by using algorithmic techniques to automatically generate some game contents. PCG also provides advantages in terms of player experience since the contents generated are typically not fixed but can vary in different playing sessions, and can even adapt to the player herself. For this purpose, the underlying algorithmic technique used for PCG must be also flexible and adaptable. This is the case of computational intelligence in general and evolutionary algorithms in particular. In this work we shall provide an overview of the use of evolutionary intelligence for PCG, with special emphasis on its use within the context of real-time strategy games. We shall show how these techniques can address both playability and aesthetics, as well as improving the game AI. Submitted by Susana Figueroa Navarro (susana.figueroa.n@unir.net) on 2020-04-21T11:57:36Z No. of bitstreams: 1 ijimai20143_2_5_pdf_73775.pdf: 676674 bytes, checksum: 8614fb75083d47f23e59f7ce7d52edc9 (MD5); Made available in DSpace on 2020-04-21T11:57:36Z (GMT). No. of bitstreams: 1 ijimai20143_2_5_pdf_73775.pdf: 676674 bytes, checksum: 8614fb75083d47f23e59f7ce7d52edc9 (MD5) https://reunir.unir.net/handle/123456789/9988 https://reunir.unir.net/handle/123456789/9831 Mining Web-based Educational Systems to Predict Student Learning Achievements del Campo-Ávila, José; Conejo, Ricardo; Triguero, Francisco; Morales-Bueno, Rafael Educational Data Mining (EDM) is getting great importance as a new interdisciplinary research field related to some other areas. It is directly connected with Web-based Educational Systems (WBES) and Data Mining (DM, a fundamental part of Knowledge Discovery in Databases). The former defines the context: WBES store and manage huge amounts of data. Such data are increasingly growing and they contain hidden knowledge that could be very useful to the users (both teachers and students). It is desirable to identify such knowledge in the form of models, patterns or any other representation schema that allows a better exploitation of the system. The latter reveals itself as the tool to achieve such discovering. Data mining must afford very complex and different situations to reach quality solutions. Therefore, data mining is a research field where many advances are being done to accommodate and solve emerging problems. For this purpose, many techniques are usually considered. In this paper we study how data mining can be used to induce student models from the data acquired by a specific Web-based tool for adaptive testing, called SIETTE. Concretely we have used top down induction decision trees algorithms to extract the patterns because these models, decision trees, are easily understandable. In addition, the conducted validation processes have assured high quality models. Submitted by Administrador Re-UNIR Re-UNIR (reunir@unir.net) on 2020-02-12T13:07:17Z No. of bitstreams: 1 ijimai20143_2_6_pdf_24850.pdf: 492250 bytes, checksum: 6ac16a37199c49d8c63c7d5a89129b2b (MD5); Made available in DSpace on 2020-02-12T13:07:17Z (GMT). No. of bitstreams: 1 ijimai20143_2_6_pdf_24850.pdf: 492250 bytes, checksum: 6ac16a37199c49d8c63c7d5a89129b2b (MD5) https://reunir.unir.net/handle/123456789/9831 https://reunir.unir.net/handle/123456789/9830 Differences in Measuring Market Risk in Four Subsectors of the Digital Economy Benito, S.; de Juan, R.; Gómez, R.; Mochón, F. This paper defends the wisdom of not considering the Digital Economy to be one homogeneous sector. Our hypothesis is that it is best to consider it the result of adding four different subsectors. We test whether indeed the economic and financial performance of a portfolio of listed companies in each of the four subsectors presents relevant differences. We use the value at risk measure to estimate market risk of the four subsectors of the digital economy. The riskiest subsector is Mobile/Internet Contents & Services followed by SW&IT Services and Application Software. On the contrary, the Telecom sector is by far the safest one. These results support the hypothesis that the Digital Economy is not a homogeneous sector. Submitted by Administrador Re-UNIR Re-UNIR (reunir@unir.net) on 2020-02-12T10:13:35Z No. of bitstreams: 1 ijimai20143_2_1_pdf_76355.pdf: 874869 bytes, checksum: e36ba588d66b61ee5e204a78aac8d106 (MD5); Made available in DSpace on 2020-02-12T10:13:35Z (GMT). No. of bitstreams: 1 ijimai20143_2_1_pdf_76355.pdf: 874869 bytes, checksum: e36ba588d66b61ee5e204a78aac8d106 (MD5) https://reunir.unir.net/handle/123456789/9830 https://reunir.unir.net/handle/123456789/9829 A Repository of Semantic Open EHR Archetypes Sánchez, Fernando; Benavides, Samuel; Moreno, Fernando; Garzón, Guillermo; Roldan Garcia, Maria del Mar; Navas-Delgado, Ismael; Aldana-Montes, Jose F. This paper describes a repository of openEHR archetypes that have been translated to OWL. In the work presented here, five different CKMs (Clinical Knowledge Managers) have been downloaded and the archetypes have been translated to OWL. This translation is based on an existing translator that has been improved to solve programming problems with certain structures. As part of the repository a tool has been developed to keep it always up-to-date. So, any change in one of the CKMs (addition, elimination or even change of an archetype) will involve translating the changed archetypes once more. The repository is accessible through a Web interface (http://www.openehr.es/). Submitted by Administrador Re-UNIR Re-UNIR (reunir@unir.net) on 2020-02-12T09:59:34Z No. of bitstreams: 1 ijimai20143_2_7_pdf_25353.pdf: 697072 bytes, checksum: f30762d0bb6d068520d04fe86a08954e (MD5); Made available in DSpace on 2020-02-12T09:59:34Z (GMT). No. of bitstreams: 1 ijimai20143_2_7_pdf_25353.pdf: 697072 bytes, checksum: f30762d0bb6d068520d04fe86a08954e (MD5) https://reunir.unir.net/handle/123456789/9829 https://reunir.unir.net/handle/123456789/9828 The Digital Economy: Social Interaction Technologies – an Overview Redondo, Teófilo Social interaction technologies (SIT) is a very broad field that encompasses a large list of topics: interactive and networked computing, mobile social services and the Social Web, social software and social media, marketing and advertising, various aspects and uses of blogs and podcasting, corporate value and web-based collaboration, e-government and online democracy, virtual volunteering, different aspects and uses of folksonomies, tagging and the social semantic cloud of tags, blog-based knowledge management systems, systems of online learning, with their ePortfolios, blogs and wikis in education and journalism, legal issues and social interaction technology, dataveillance and online fraud, neogeography, social software usability, social software in libraries and nonprofit organizations, and broadband visual communication technology for enhancing social interaction. The fact is that the daily activities of many businesses are being socialized, as is the case with Yammer (https://www.yammer.com/), the social enterprise social network. The leitmotivs of social software are: create, connect, contribute, and collaborate. Submitted by Administrador Re-UNIR Re-UNIR (reunir@unir.net) on 2020-02-11T12:38:43Z No. of bitstreams: 1 ijimai20143_2_2_pdf_12490.pdf: 471735 bytes, checksum: 5c61e69f5d84955b4ee17174e83e01df (MD5); Made available in DSpace on 2020-02-11T12:38:43Z (GMT). No. of bitstreams: 1 ijimai20143_2_2_pdf_12490.pdf: 471735 bytes, checksum: 5c61e69f5d84955b4ee17174e83e01df (MD5) https://reunir.unir.net/handle/123456789/9828 https://reunir.unir.net/handle/123456789/9827 Auto-adaptative Robot-aided Therapy based in 3D Virtual Tasks controlled by a Supervised and Dynamic Neuro-Fuzzy System LLedo, L. D.; Bertomeu, A.; Díez, J.; Badesa, F. J.; Morales, R.; Sabater, J. M.; Garcia-Aracil, N. This paper presents an application formed by a classification method based on the architecture of ART neural network (Adaptive Resonance Theory) and the Fuzzy Set Theory to classify physiological reactions in order to automatically and dynamically adapt a robot-assisted rehabilitation therapy to the patient needs, using a three-dimensional task in a virtual reality system. Firstly, the mathematical and structural model of the neuro-fuzzy classification method is described together with the signal and training data acquisition. Then, the virtual designed task with physics behavior and its development procedure are explained. Finally, the general architecture of the experimentation for the auto-adaptive therapy is presented using the classification method with the virtual reality exercise. Submitted by Administrador Re-UNIR Re-UNIR (reunir@unir.net) on 2020-02-11T12:01:13Z No. of bitstreams: 1 ijimai20143_2_8_pdf_17229.pdf: 837804 bytes, checksum: a780230c5aad37f464b38d9e2f45c8af (MD5); Made available in DSpace on 2020-02-11T12:01:13Z (GMT). No. of bitstreams: 1 ijimai20143_2_8_pdf_17229.pdf: 837804 bytes, checksum: a780230c5aad37f464b38d9e2f45c8af (MD5) https://reunir.unir.net/handle/123456789/9827 https://reunir.unir.net/handle/123456789/9826 New Challenges on Crossplatform Digital Contents Iglesias Feijoo, Jesús; Amat Gomariz, Guillermo When we speak about devices and platforms, generally we think about those of general use which are currently available (mainly smartphones and tablets). Surely, we would forget all those which are on the way (watches, glasses, cars) and those which are coming. The Internet of Things will transform the technological world in which we are into an amalgamation of devices and interfaces. This paper analyses the challenge for the coming years of getting all these new devices to communicate between them, regardless of their technology and the platforms they use, and it is based on the works done under the Visio Project, funded by the Spanish Ministry of Industry, Energy and Tourism. Finally, a truly universal platform to avoid market fragmentation and provide access to information and services is proposed. Submitted by Administrador Re-UNIR Re-UNIR (reunir@unir.net) on 2020-02-11T11:21:25Z No. of bitstreams: 1 ijimai20143_2_3_pdf_32365.pdf: 505089 bytes, checksum: 282dbd01abaced45a4e98659f73a2f61 (MD5); Made available in DSpace on 2020-02-11T11:21:25Z (GMT). No. of bitstreams: 1 ijimai20143_2_3_pdf_32365.pdf: 505089 bytes, checksum: 282dbd01abaced45a4e98659f73a2f61 (MD5) https://reunir.unir.net/handle/123456789/9826 https://reunir.unir.net/handle/123456789/5893 Semi-Automated Correction Tools for Mathematics-Based Exercises in MOOC Environments Corbi, Alberto ; Burgos, Daniel Massive Open Online Courses (MOOCs) allow the participation of hundreds of students who are interested in a wide range of areas. Given the huge attainable enrollment rate, it is almost impossible to suggest complex homework to students and have it carefully corrected and reviewed by a tutor or assistant professor. In this paper, we present a software framework that aims at assisting teachers in MOOCs during correction tasks related to exercises in mathematics and topics with some degree of mathematical content. In this spirit, our proposal might suit not only maths, but also physics and technical subjects. As a test experience, we apply it to 300+ physics homework bulletins from 80+ students. Results show our solution can prove very useful in guiding assistant teachers during correction shifts and is able to mitigate the time devoted to this type of activities. Submitted by Pedro Cotillas (pedro.cotillas@unir.net) on 2017-10-31T11:17:58Z No. of bitstreams: 0; Made available in DSpace on 2017-10-31T11:17:58Z (GMT). No. of bitstreams: 0 https://reunir.unir.net/handle/123456789/5893 https://reunir.unir.net/handle/123456789/5710 Legal Effects of Link Sharing in Social Networks Gil López, Eugenio; Castillo Sanz, Andrés G Knowledge sharing among individuals has changed deeply with the advent of social networks in the environment of Web 2.0. Every user has the possibility of publishing what he or she deems of interest for their audience, regardless of the origin or authorship of the piece of knowledge. It is generally accepted that as the user is sharing a link to a document or video, for example, without getting paid for it, there is no point in worrying about the rights of the original author. It seems that the concepts of authorship and originality is about to disappear as promised the structuralists fifty years ago. Nevertheless the legal system has not changed, nor have the economic interests concerned. This paper explores the last developments of the legal system concerning these issues Submitted by Pedro Cotillas (pedro.cotillas@unir.net) on 2017-10-10T15:29:52Z No. of bitstreams: 0; Made available in DSpace on 2017-10-10T15:29:52Z (GMT). No. of bitstreams: 0 https://reunir.unir.net/handle/123456789/5710 https://reunir.unir.net/handle/123456789/5695 Maths: from distance to e-learning Álvarez, D.; Moreno, D.; Orduna, P.; Pascual López, Virginia; San Vicente, F. J. New technological progress and especially the use of Internet have implied a new paradigm on education, and nowadays one of its most prominent features is the rise of a new approach based on an instruction beyond the solid walls of schools and characterized by mobility. That is, e-learning. However, its origins and concept can be traced in time. This paper, focused on mathematics, deals with its evolution, antecedents and present status. Submitted by Pedro Cotillas (pedro.cotillas@unir.net) on 2017-10-09T16:04:11Z No. of bitstreams: 0; Made available in DSpace on 2017-10-09T16:04:11Z (GMT). No. of bitstreams: 0 https://reunir.unir.net/handle/123456789/5695 https://reunir.unir.net/handle/123456789/5694 ICTs and School Education Aris, Nuria ; Orcos, Lara Nowadays, there exist lots of ICTs that teachers use as teaching tools. In this work, we introduce the theoretical context of the study of using ICTs in school education, then we present the method that will be used in order to achieve our goals. This work constitutes the groundwork to continue the study of ICT and its use in teaching. Submitted by Pedro Cotillas (pedro.cotillas@unir.net) on 2017-10-09T15:54:28Z No. of bitstreams: 0; Made available in DSpace on 2017-10-09T15:54:28Z (GMT). No. of bitstreams: 0 https://reunir.unir.net/handle/123456789/5694 https://reunir.unir.net/handle/123456789/5693 UX of social network Edmodo in undergraduate engineering students Gómez, Angélica; Magreñán, Á. Alberto ; Orcos, Lara The main objective of this research is to describe the use that students make of an academic SNS (social network service) and detail the relationship between socio-demographic and academic factors associated with the use of EDMODO and the perception of the contribution to the acquisition of skills for the future career. In the analysis of user experience, participants positively evaluated EDMODO and found that the level of satisfaction is positively associated with the academic results obtained, and negatively with perceived usefulness in terms of the impact on their grades. Submitted by Pedro Cotillas (pedro.cotillas@unir.net) on 2017-10-09T15:34:43Z No. of bitstreams: 0; Made available in DSpace on 2017-10-09T15:34:43Z (GMT). No. of bitstreams: 0 https://reunir.unir.net/handle/123456789/5693 https://reunir.unir.net/handle/123456789/5677 SRec and VAST: Visualizing Software with a Student-Centered Aim Almeida-Martínez, Francisco Javier ; Pérez-Carrasco, Antonio This paper reviews software visualization focused on the educational environment. Software visualization is a very wide study field, so we have focused on two areas: recursion visualization and parsers' visualization. The paper contains a retrospective about what has been made on it, what lacks we have found and the solution provided by the authors: SRec and VAST, two software tools trying to make a significant difference between them and the software made before. Submitted by Pedro Cotillas (pedro.cotillas@unir.net) on 2017-10-07T12:06:56Z No. of bitstreams: 0; Made available in DSpace on 2017-10-07T12:06:56Z (GMT). No. of bitstreams: 0 https://reunir.unir.net/handle/123456789/5677 https://reunir.unir.net/handle/123456789/5676 A Quantitative Justification to Dynamic Partial Replication of Web Contents through an Agent Architecture Torres-Franco, Enrique; García, José Daniel; Sanjuán Martínez, Óscar; Joyanes Aguilar, Luis; González-Crespo, Rubén The most usual solution to improve the performance of a Web server is based on building a distributed architecture, where the Web server is offered from a set of nodes. The most widely distributed architecture is based on Web clusters including a Web switch. The Web switch is responsible for deciding which site's node must attend which request. When deciding where elements are stored the classical solution was to fully replicate all contents in every server node. However, partial replication may require a fraction of storage while offering the same level of reliability. In this paper we report a solution based on dynamic partial replication where the number of replicas for each file and its management is handled by an agent architecture. We compare our solution with full replication and with static partial replication both in terms of storage capacity consumption and service time. Our results show that our proposed solution provides equivalent performance with a better use of disk storage capacity. Submitted by Pedro Cotillas (pedro.cotillas@unir.net) on 2017-10-07T12:01:36Z No. of bitstreams: 0; Made available in DSpace on 2017-10-07T12:01:36Z (GMT). No. of bitstreams: 0 https://reunir.unir.net/handle/123456789/5676