https://reunir.unir.net/handle/123456789/9558 2024-11-08T12:59:59Z 2024-11-08T12:59:59Z Tarazona Bermúdez, Giovanny Mauricio Rodríguez Rojas, Luz Andrea B Pelayo, Cristina Sanjuán Martínez, Óscar https://reunir.unir.net/handle/123456789/9628 2021-06-02T12:14:40Z

Model Innovation of Process Based on the Standard e-commerce International GS1 Tarazona Bermúdez, Giovanny Mauricio; Rodríguez Rojas, Luz Andrea; B Pelayo, Cristina; Sanjuán Martínez, Óscar This article focuses on the design and characterization of management model for MSMEs, based on e-commerce and the GS1 international e-com standard. The first part contextualizes electronic commerce and its impact on domestic industry, and briefly describes the B2B e-commerce model used in Colombia. Subsequently the first step to apply the model is presented, which corresponds to the design of a diagnostic methodology that evaluates the technological, technical, commercial and administrative aspects of the organization; after that are exposed the results of the pilot experiment performed on a MSME from Bogota, and finally will be explained the procedures for the implementation of the model. Submitted by Administrador Re-UNIR Re-UNIR (reunir@unir.net) on 2019-12-12T13:31:07Z No. of bitstreams: 1 ijimai20121_7_8_pdf_11649.pdf: 381484 bytes, checksum: c0416111cf85f368ff3a6b5fa7ba6494 (MD5); Made available in DSpace on 2019-12-12T13:31:07Z (GMT). No. of bitstreams: 1 ijimai20121_7_8_pdf_11649.pdf: 381484 bytes, checksum: c0416111cf85f368ff3a6b5fa7ba6494 (MD5)

González-Crespo, Rubén Ríos Aguilar, Sergio Ferro Escobar, Roberto Torres, Nicolás https://reunir.unir.net/handle/123456789/9627 2020-06-18T09:22:11Z

Dynamic, ecological, accessible and 3D Virtual Worlds-based Libraries using OpenSim and Sloodle along with mobile location and NFC for checking in González-Crespo, Rubén; Ríos Aguilar, Sergio; Ferro Escobar, Roberto; Torres, Nicolás This paper proposes the implementation of a 3D virtual library, using open platforms such as OpenSimulator and Sloodle, applied to the integration of virtual learning environments. It also proposes their application to the creation of open libraries to share and disseminate the new dynamic nature of knowledge, in the understanding that 3D virtual worlds may contribute to the future of libraries as part of green initiatives to achieve an ecologic and sustainable planet. Submitted by Administrador Re-UNIR Re-UNIR (reunir@unir.net) on 2019-12-12T13:17:38Z No. of bitstreams: 1 ijimai20121_7_7_pdf_23525.pdf: 760714 bytes, checksum: b957846a538dac535ecbd5167244d79f (MD5); Made available in DSpace on 2019-12-12T13:17:38Z (GMT). No. of bitstreams: 1 ijimai20121_7_7_pdf_23525.pdf: 760714 bytes, checksum: b957846a538dac535ecbd5167244d79f (MD5)

Amato, Alba Di Martino, Beniamino Venticinque, Salvatore https://reunir.unir.net/handle/123456789/9626 2019-12-12T12:48:22Z

Semantic Brokering of Multimedia Contents for Smart Delivery of Ubiquitous Services in Pervasive Environments Amato, Alba; Di Martino, Beniamino; Venticinque, Salvatore With the proliferation of modern mobile devices having the capability to interact each other and with the environment in a transparent manner, there is an increase in the development of those applications that are specifically designed for pervasive and ubiquitous environments. Those applications are able to provide a service of interest for the user that depends on context information, such as the user's position, his preferences, the capability of the device and its available resources. Services have to respond in a rational way in many different situations choosing the actions with the best expected result by the user, so making environment not only more connected and efficient, but smarter. Here we present a semantic framework that provides the technology for the development of intelligent, context aware services and their delivery in pervasive and ubiquitous environments. Submitted by Administrador Re-UNIR Re-UNIR (reunir@unir.net) on 2019-12-12T12:48:22Z No. of bitstreams: 1 ijimai20121_7_2_pdf_22967.pdf: 860053 bytes, checksum: 7170114d11070d1de75b7c00165e22d9 (MD5); Made available in DSpace on 2019-12-12T12:48:22Z (GMT). No. of bitstreams: 1 ijimai20121_7_2_pdf_22967.pdf: 860053 bytes, checksum: 7170114d11070d1de75b7c00165e22d9 (MD5)

Nossenson, Ronit Yudilevich, Orit Marlowitz, Omer https://reunir.unir.net/handle/123456789/9622 2019-12-11T11:19:43Z

A Client-Server System for Ubiquitous Video Service Nossenson, Ronit; Yudilevich, Orit; Marlowitz, Omer In this work we introduce a simple client-server system architecture and algorithms for ubiquitous live video and VOD service support. The main features of the system are: efficient usage of network resources, emphasis on user personalization, and ease of implementation. The system supports many continuous service requirements such as QoS provision, user mobility between networks and between different communication devices, and simultaneous usage of a device by a number of users. Submitted by Administrador Re-UNIR Re-UNIR (reunir@unir.net) on 2019-12-11T11:14:30Z No. of bitstreams: 1 ijimai20121_7_4_pdf_22432.pdf: 962763 bytes, checksum: ec74e3c44d9329085d85a87adbc55bc3 (MD5); Made available in DSpace on 2019-12-11T11:14:30Z (GMT). No. of bitstreams: 1 ijimai20121_7_4_pdf_22432.pdf: 962763 bytes, checksum: ec74e3c44d9329085d85a87adbc55bc3 (MD5)

Pascual Espada, Jordán https://reunir.unir.net/handle/123456789/9621 2019-12-11T11:01:35Z

Service Orchestration on the Internet of Things Pascual Espada, Jordán On July 27, 2010, Jordán Pascual Espada defended his Master’s thesis at Oviedo University (Spain), titled: “Service Orchestration on the internet of things”. This Master’s thesis is the final part of the Web Engineering Official Research Master belonging to the European Higher Education Area. Jordán Pascual Espada defended his dissertation in a publicly open presentation held in the School of Computer Engineering at Oviedo University, and was able to comment on every question raised by his committee and the audience. The master’s thesis was supervised by his advisors, Juan Manuel Cueva Lovelle and Oscar Sanjuán Martínez. The thesis has been read and approved by his thesis committee, receiving the highest rating. Submitted by Administrador Re-UNIR Re-UNIR (reunir@unir.net) on 2019-12-11T11:01:35Z No. of bitstreams: 1 ijimai20121_7_9_pdf_13854.pdf: 217432 bytes, checksum: 3cd959db29c7a60d940c6fec97c9bf90 (MD5); Made available in DSpace on 2019-12-11T11:01:35Z (GMT). No. of bitstreams: 1 ijimai20121_7_9_pdf_13854.pdf: 217432 bytes, checksum: 3cd959db29c7a60d940c6fec97c9bf90 (MD5)

Martín, Angel Iribas, Haritz Alberdi, Ion Aginako, Naiara https://reunir.unir.net/handle/123456789/9620 2019-12-11T10:55:35Z

Automatic Multimedia Creation Enriched with Dynamic Conceptual Data Martín, Angel; Iribas, Haritz; Alberdi, Ion; Aginako, Naiara There is a growing gap between the multimedia production and the context centric multimedia services. The main problem is the under-exploitation of the content creation design. The idea is to support dynamic content generation adapted to the user or display profile. Our work is an implementation of a web platform for automatic generation of multimedia presentations based on SMIL (Synchronized Multimedia Integration Language) standard. The system is able to produce rich media with dynamic multimedia content retrieved automatically from different content databases matching the semantic context. For this purpose, we extend the standard interpretation of SMIL tags in order to accomplish a semantic translation of multimedia objects in database queries. This permits services to take benefit of production process to create customized content enhanced with real time information fed from databases. The described system has been successfully deployed to create advanced context centric weather forecasts. Submitted by Administrador Re-UNIR Re-UNIR (reunir@unir.net) on 2019-12-11T10:55:35Z No. of bitstreams: 1 ijimai20121_7_5_pdf_13895.pdf: 604126 bytes, checksum: 92746e2b80edd25adfdd923f5f172361 (MD5); Made available in DSpace on 2019-12-11T10:55:35Z (GMT). No. of bitstreams: 1 ijimai20121_7_5_pdf_13895.pdf: 604126 bytes, checksum: 92746e2b80edd25adfdd923f5f172361 (MD5)

Giménez de Ory, Elena Gil, Antonio J. https://reunir.unir.net/handle/123456789/9619 2023-01-25T10:49:18Z

Artificial intelligence methodologies applied to quality control of the positioning services offered by the Red Andaluza de Posicionamiento (RAP) network Giménez de Ory, Elena; Gil, Antonio J. On April 26, 2012, Elena Giménez de Ory defend-ed her Ph.D. thesis at University of Jaén, entitled: “Robust methodologies applied to quality control of the positioning services offered by the Red Andaluza de Posicionamiento (RAP) network”. Elena Giménez de Ory defended her dissertation in a publicly open presentation held in the Higher Polytechnic School at the University of Jaén, and was able to comment on every question raised by her thesis committee and the audience. The thesis was supervised by her advisor, Prof. Antonio J. Gil Cruz, and the rest of his thesis committee, Prof. Manuel Sánchez de la Orden, Dr. Antonio Miguel Ruiz Armenteros and Dr. Gracia Rodríguez Caderot. The thesis has been read and approved by his thesis committee, receiving the highest rating. All of them were present at the presentation. Submitted by Administrador Re-UNIR Re-UNIR (reunir@unir.net) on 2019-12-11T10:38:18Z No. of bitstreams: 1 ijimai20121_7_10_pdf_41850.pdf: 285488 bytes, checksum: 75b11ef1be9a35e29bd9a867573cd7ed (MD5); Made available in DSpace on 2019-12-11T10:38:18Z (GMT). No. of bitstreams: 1 ijimai20121_7_10_pdf_41850.pdf: 285488 bytes, checksum: 75b11ef1be9a35e29bd9a867573cd7ed (MD5)

Gomes, Maria Cecília Paulino, Hervé Baptista, Adérito Araújo, Filipe https://reunir.unir.net/handle/123456789/9613 2019-12-05T13:17:41Z

Accessing Wireless Sensor Networks Via Dynamically Reconfigurable Interaction Models Gomes, Maria Cecília; Paulino, Hervé; Baptista, Adérito; Araújo, Filipe The Wireless Sensor Networks (WSNs) technology is already perceived as fundamental for science across many domains, since it provides a low cost solution for environment monitoring. WSNs representation via the service concept and its inclusion in Web environments, e.g. through Web services, supports particularly their open/standard access and integration. Although such Web enabled WSNs simplify data access, network parameterization and aggregation, the existing interaction models and run-time adaptation mechanisms available to clients are still scarce. Nevertheless, applications increasingly demand richer and more flexible accesses besides the traditional client/server. For instance, applications may require a streaming model in order to avoid sequential data requests, or the asynchronous notification of subscribed data through the publish/subscriber. Moreover, the possibility to automatically switch between such models at runtime allows applications to define flexible context-based data acquisition. To this extent, this paper discusses the relevance of the session and pattern abstractions on the design of a middleware prototype providing richer and dynamically reconfigurable interaction models to Web enabled WSNs. Submitted by Administrador Re-UNIR Re-UNIR (reunir@unir.net) on 2019-12-05T13:17:41Z No. of bitstreams: 1 ijimai20121_7_6_pdf_26241.pdf: 1013143 bytes, checksum: 8d8582d0358b2e1a2090c9c4c4d370e2 (MD5); Made available in DSpace on 2019-12-05T13:17:41Z (GMT). No. of bitstreams: 1 ijimai20121_7_6_pdf_26241.pdf: 1013143 bytes, checksum: 8d8582d0358b2e1a2090c9c4c4d370e2 (MD5)

Khan, Koffka Sahai, Ashok https://reunir.unir.net/handle/123456789/9612 2019-12-05T13:03:25Z

A fuzzy c-means bi-sonar-based Metaheuristic Optimization Algorithm Khan, Koffka; Sahai, Ashok Fuzzy clustering is an important problem which is the subject of active research in several real world applications. Fuzzy c-means (FCM) algorithm is one of the most popular fuzzy clustering techniques because it is efficient, straightforward, and easy to implement. Fuzzy clustering methods allow the objects to belong to several clusters simultaneously, with different degrees of membership. Objects on the boundaries between several classes are not forced to fully belong to one of the classes, but rather are assigned membership degrees between 0 and 1 indicating their partial membership. However FCM is sensitive to initialization and is easily trapped in local optima. Bi-sonar optimization (BSO) is a stochastic global Metaheuristic optimization tool and is a relatively new algorithm. In this paper a hybrid fuzzy clustering method FCB based on FCM and BSO is proposed which makes use of the merits of both algorithms. Experimental results show that this proposed method is efficient and reveals encouraging results. Submitted by Administrador Re-UNIR Re-UNIR (reunir@unir.net) on 2019-12-05T13:03:25Z No. of bitstreams: 1 ijimai20121_7_3_pdf_25064.pdf: 495834 bytes, checksum: 1373b185bd1090d1b3aa35fc50b0ef39 (MD5); Made available in DSpace on 2019-12-05T13:03:25Z (GMT). No. of bitstreams: 1 ijimai20121_7_3_pdf_25064.pdf: 495834 bytes, checksum: 1373b185bd1090d1b3aa35fc50b0ef39 (MD5)

Kovachev, Dejan Klamma, Ralf https://reunir.unir.net/handle/123456789/9611 2019-12-05T12:33:30Z

Framework for Computation Offloading in Mobile Cloud Computing Kovachev, Dejan; Klamma, Ralf The inherently limited processing power and battery lifetime of mobile phones hinder the possible execution of computationally intensive applications like content-based video analysis or 3D modeling. Offloading of computationally intensive application parts from the mobile platform into a remote cloud infrastructure or nearby idle computers addresses this problem. This paper presents our Mobile Augmentation Cloud Services (MACS) middleware which enables adaptive extension of Android application execution from a mobile client into the cloud. Applications are developed by using the standard Android development pattern. The middleware does the heavy lifting of adaptive application partitioning, resource monitoring and computation offloading. These elastic mobile applications can run as usual mobile application, but they can also use remote computing resources transparently. Two prototype applications using the MACS middleware demonstrate the benefits of the approach. The evaluation shows that applications, which involve costly computations, can benefit from offloading with around 95% energy savings and significant performance gains compared to local execution only. Submitted by Administrador Re-UNIR Re-UNIR (reunir@unir.net) on 2019-12-05T12:33:30Z No. of bitstreams: 1 ijimai20121_7_1_pdf_62175.pdf: 755340 bytes, checksum: cc15ae458bdf5674b6afba0f7799e448 (MD5); Made available in DSpace on 2019-12-05T12:33:30Z (GMT). No. of bitstreams: 1 ijimai20121_7_1_pdf_62175.pdf: 755340 bytes, checksum: cc15ae458bdf5674b6afba0f7799e448 (MD5)

Redondo-García, José Luis Botón-Fernández, Vicente Lozano-Tello, Adolfo https://reunir.unir.net/handle/123456789/9607 2019-12-03T10:49:48Z

Linked Data Methodologies for Managing Information about Television Content Redondo-García, José Luis; Botón-Fernández, Vicente; Lozano-Tello, Adolfo OntoTV is a television information management system designed for improving the quality and quantity of the information available in the current television platforms. In order to achieve this objective, OntoTV (1) collects the information offered by the broadcasters, (2) integrates it into a ontology-based data structure, (3) extracts extra data from alternative television sources, and (4) makes possible for the user to perform queries over the stored information. This document shows the way Linked Data methodologies have been applied in OntoTV system, and the improvements in the data consumption and publication processes that have been obtained as result. On the one hand, the possibility of accessing to information available in the Web of Data has made possible to offer more complete descriptions about the programs, as well as more detailed guides than those obtained by using classic collection methods. On the other hand, as the information of the television programs and channels is published according to the Linked Data philosophy, it becomes available not only for OntoTV clients, but also for other agents able to access Linked Data resources, who could offer the viewer more fresh and innovative features. Submitted by Administrador Re-UNIR Re-UNIR (reunir@unir.net) on 2019-12-03T10:49:48Z No. of bitstreams: 1 IJIMAI20121_6_5.pdf: 1129975 bytes, checksum: 476f7c52062460a2528613c34f055765 (MD5); Made available in DSpace on 2019-12-03T10:49:48Z (GMT). No. of bitstreams: 1 IJIMAI20121_6_5.pdf: 1129975 bytes, checksum: 476f7c52062460a2528613c34f055765 (MD5)

Planet, Santiago Iriondo, Ignasi https://reunir.unir.net/handle/123456789/9606 2019-12-03T10:36:45Z

Comparative Study on Feature Selection and Fusion Schemes for Emotion Recognition from Speech Planet, Santiago; Iriondo, Ignasi The automatic analysis of speech to detect affective states may improve the way users interact with electronic devices. However, the analysis only at the acoustic level could be not enough to determine the emotion of a user in a realistic scenario. In this paper we analyzed the spontaneous speech recordings of the FAU Aibo Corpus at the acoustic and linguistic levels to extract two sets of features. The acoustic set was reduced by a greedy procedure selecting the most relevant features to optimize the learning stage. We compared two versions of this greedy selection algorithm by performing the search of the relevant features forwards and backwards. We experimented with three classification approaches: Nave-Bayes, a support vector machine and a logistic model tree, and two fusion schemes: decision-level fusion, merging the hard-decisions of the acoustic and linguistic classifiers by means of a decision tree; and feature-level fusion, concatenating both sets of features before the learning stage. Despite the low performance achieved by the linguistic data, a dramatic improvement was achieved after its combination with the acoustic information, improving the results achieved by this second modality on its own. The results achieved by the classifiers using the parameters merged at feature level outperformed the classification results of the decision-level fusion scheme, despite the simplicity of the scheme. Moreover, the extremely reduced set of acoustic features obtained by the greedy forward search selection algorithm improved the results provided by the full set. Submitted by Administrador Re-UNIR Re-UNIR (reunir@unir.net) on 2019-12-03T10:36:45Z No. of bitstreams: 1 IJIMAI20121_6_6.pdf: 382450 bytes, checksum: 1a3a08599d1b3bc8d031977afa6e70ca (MD5); Made available in DSpace on 2019-12-03T10:36:45Z (GMT). No. of bitstreams: 1 IJIMAI20121_6_6.pdf: 382450 bytes, checksum: 1a3a08599d1b3bc8d031977afa6e70ca (MD5)

Kumar Singh, Deepak Srinivas, K. Bhagwan Das, D. https://reunir.unir.net/handle/123456789/9605 2019-12-03T10:16:53Z

A Useful Metaheuristic for Dynamic Channel Assignment in Mobile Cellular Systems Kumar Singh, Deepak; Srinivas, K.; Bhagwan Das, D. The prime objective of a Channel Assignment Problem (CAP) is to assign appropriate number of required channels to each cell in a way to achieve both efficient frequency spectrum utilization and minimization of interference effects (by satisfying a number of channel reuse constraints). Dynamic Channel Assignment (DCA) assigns the channels to the cells dynamically according to traffic demand, and hence, can provide higher capacity (or lower call blocking probability), fidelity and quality of service than the fixed assignment schemes. Channel assignment algorithms are formulated as combinatorial optimization problems and are NP-hard. Devising a DCA, that is practical, efficient, and which can generate high quality assignments, is challenging. Though Metaheuristic Search techniques like Evolutionary Algorithms, Differential Evolution, Particle Swarm Optimization prove effective in the solution of Fixed Channel Assignment (FCA) problems but they still require high computational time and therefore may be inefficient for DCA. A number of approaches have been proposed for the solution of DCA problem but the high complexity of these proposed approaches makes them unsuitable/less efficient for practical use. Therefore, this paper presents an effective and efficient Hybrid Discrete Binary Differential Evolution Algorithm (HDB-DE) for the solution of DCA Problem Submitted by Administrador Re-UNIR Re-UNIR (reunir@unir.net) on 2019-12-03T10:16:53Z No. of bitstreams: 1 IJIMAI20121_6_1.pdf: 419918 bytes, checksum: 9ed933dd981ea6a03123333d2ea35da4 (MD5); Made available in DSpace on 2019-12-03T10:16:53Z (GMT). No. of bitstreams: 1 IJIMAI20121_6_1.pdf: 419918 bytes, checksum: 9ed933dd981ea6a03123333d2ea35da4 (MD5)

Correia, Bruno Urbano, Paulo Moniz, Luís https://reunir.unir.net/handle/123456789/9604 2019-12-03T10:06:57Z

DEVELOP-FPS: a First Person Shooter Development Tool for Rule-based Scripts Correia, Bruno; Urbano, Paulo; Moniz, Luís We present DEVELOP-FPS, a software tool specially designed for the development of First Person Shooter (FPS) players controlled by Rule Based Scripts. DEVELOP-FPS may be used by FPS developers to create, debug, maintain and compare rule base player behaviours, providing a set of useful functionalities: i) for an easy preparation of the right scenarios for game debugging and testing; ii) for controlling the game execution: users can stop and resume the game execution at any instant, monitoring and controlling every player in the game, monitoring the state of each player, their rule base activation, being able to issue commands to control their behaviour; and iii) to automatically run a certain number of game executions and collect data in order to evaluate and compare the players performance along a sufficient number of similar experiments. Submitted by Administrador Re-UNIR Re-UNIR (reunir@unir.net) on 2019-12-03T10:06:57Z No. of bitstreams: 1 IJIMAI20121_6_7.pdf: 728274 bytes, checksum: 0182356e8f8c0e92428053ee088d9f56 (MD5); Made available in DSpace on 2019-12-03T10:06:57Z (GMT). No. of bitstreams: 1 IJIMAI20121_6_7.pdf: 728274 bytes, checksum: 0182356e8f8c0e92428053ee088d9f56 (MD5)

León, Rafael Rainer, J. Javier Rojo, José Manuel Galán, Ramón https://reunir.unir.net/handle/123456789/9603 2019-12-03T09:57:24Z

Improving Web Learning through model Optimization using Bootstrap for a Tour-Guide Robot León, Rafael; Rainer, J. Javier; Rojo, José Manuel; Galán, Ramón We perform a review of Web Mining techniques and we describe a Bootstrap Statistics methodology applied to pattern model classifier optimization and verification for Supervised Learning for Tour-Guide Robot knowledge repository management. It is virtually impossible to test thoroughly Web Page Classifiers and many other Internet Applications with pure empirical data, due to the need for human intervention to generate training sets and test sets. We propose using the computer-based Bootstrap paradigm to design a test environment where they are checked with better reliability. Submitted by Administrador Re-UNIR Re-UNIR (reunir@unir.net) on 2019-12-03T09:57:24Z No. of bitstreams: 1 IJIMAI20121_6_2.pdf: 620104 bytes, checksum: 45501369bacf46d3e346b60e77c414de (MD5); Made available in DSpace on 2019-12-03T09:57:24Z (GMT). No. of bitstreams: 1 IJIMAI20121_6_2.pdf: 620104 bytes, checksum: 45501369bacf46d3e346b60e77c414de (MD5)

Romero, Lucía Gutiérrez, Milagros Caliusco, María Laura https://reunir.unir.net/handle/123456789/9602 2019-12-03T09:44:11Z

Conceptualizing the e-Learning Assessment Domain using an Ontology Network Romero, Lucía; Gutiérrez, Milagros; Caliusco, María Laura During the last year, approaches that use ontologies, the backbone of the Semantic Web technologies, for different purposes in the assessment domain of e-Learning have emerged. One of these purposes is the use of ontologies as a mean of providing a structure to guide the automated design of assessments. The most of the approaches that deal with this problem have proposed individual ontologies that model only a part of the assessment domain. The main contribution of this paper is an ontology network, called AONet, that conceptualizes the e-assessment domain with the aim of supporting the semi-automatic generation of it. The main advantage of this network is that it is enriched with rules for considering not only technical aspects of an assessment but also pedagogic. Submitted by Administrador Re-UNIR Re-UNIR (reunir@unir.net) on 2019-12-03T09:44:11Z No. of bitstreams: 1 IJIMAI20121_6_3.pdf: 759584 bytes, checksum: f2e6244d28e91f90c7505bf579dc25ad (MD5); Made available in DSpace on 2019-12-03T09:44:11Z (GMT). No. of bitstreams: 1 IJIMAI20121_6_3.pdf: 759584 bytes, checksum: f2e6244d28e91f90c7505bf579dc25ad (MD5)

Rombaldo Jr, Carlos Alberto Alves Souza, Solange N de Souza, Luiz Sergio https://reunir.unir.net/handle/123456789/9601 2019-12-03T09:29:26Z

O-ODM Framework for Object-Relational Databases Rombaldo Jr, Carlos Alberto; Alves Souza, Solange N; de Souza, Luiz Sergio Object-Relational Databases introduce new features which allow manipulating objects in databases.At present, many DBMS offer resources to manipulate objects in database, but most application developers just map class to relations tables, failing to exploit the O-R model strength. The lack of tools that aid the database project contributes to this situation. This work presents O-ODM (Object-Object Database Mapping), a persistent framework that maps objects from OO applications to database objects.Persistent Frameworks have been used to aid developers, managing all access to DBMS. This kind of tool allows developers to persist objects without solid knowledge about DBMSs and specific languages, improving the developers' productivity, mainly when a different DBMS is used. The results of some experiments using O-ODM are shown. Submitted by Administrador Re-UNIR Re-UNIR (reunir@unir.net) on 2019-12-03T09:29:26Z No. of bitstreams: 1 IJIMAI20121_6_4.pdf: 490822 bytes, checksum: 44f43d5d74961dbc4c1ac0049089c818 (MD5); Made available in DSpace on 2019-12-03T09:29:26Z (GMT). No. of bitstreams: 1 IJIMAI20121_6_4.pdf: 490822 bytes, checksum: 44f43d5d74961dbc4c1ac0049089c818 (MD5)

Massata NDIAYE, Ndeye SENS, Pierre THIARE, Ousmane https://reunir.unir.net/handle/123456789/9599 2019-12-03T08:35:21Z

Performance comparison of hierarchical checkpoint protocols grid computing Massata NDIAYE, Ndeye; SENS, Pierre; THIARE, Ousmane Grid infrastructure is a large set of nodes geographically distributed and connected by a communication. In this context, fault tolerance is a necessity imposed by the distribution that poses a number of problems related to the heterogeneity of hardware, operating systems, networks, middleware, applications, the dynamic resource, the scalability, the lack of common memory, the lack of a common clock, the asynchronous communication between processes. To improve the robustness of supercomputing applications in the presence of failures, many techniques have been developed to provide resistance to these faults of the system. Fault tolerance is intended to allow the system to provide service as specified in spite of occurrences of faults. It appears as an indispensable element in distributed systems. To meet this need, several techniques have been proposed in the literature. We will study the protocols based on rollback recovery. These protocols are classified into two categories: coordinated checkpointing and rollback protocols and log-based independent checkpointing protocols or message logging protocols. However, the performance of a protocol depends on the characteristics of the system, network and applications running. Faced with the constraints of large-scale environments, many of algorithms of the literature showed inadequate. Given an application environment and a system, it is not easy to identify the recovery protocol that is most appropriate for a cluster or hierarchical environment, like grid computing. While some protocols have been used successfully in small scale, they are not suitable for use in large scale. Hence there is a need to implement these protocols in a hierarchical fashion to compare their performance in grid computing. In this paper, we propose hierarchical version of four well-known protocols. We have implemented and compare the performance of these protocols in clusters and grid computing using the Omnet++ simulator. Submitted by Administrador Re-UNIR Re-UNIR (reunir@unir.net) on 2019-12-03T08:35:21Z No. of bitstreams: 1 IJIMAI20121_5_6_0.pdf: 501573 bytes, checksum: 50f397ad789c8fa82cf3afd94c7cb7e2 (MD5); Made available in DSpace on 2019-12-03T08:35:21Z (GMT). No. of bitstreams: 1 IJIMAI20121_5_6_0.pdf: 501573 bytes, checksum: 50f397ad789c8fa82cf3afd94c7cb7e2 (MD5)

Seoane, Pablo Gestal, Marcos Dorado, Julián https://reunir.unir.net/handle/123456789/9598 2019-12-03T08:22:09Z

Approach for solving multimodal problems using Genetic Algorithms with Grouped into Species optimized with Predator-Prey Seoane, Pablo; Gestal, Marcos; Dorado, Julián Over recent years, Genetic Algorithms have proven to be an appropriate tool for solving certain problems. However, it does not matter if the search space has several valid solutions, as their classic approach is insufficient. To this end, the idea of dividing the individuals into species has been successfully raised. However, this solution is not free of drawbacks, such as the emergence of redundant species, overlapping or performance degradation by significantly increasing the number of individuals to be evaluated. This paper presents the implementation of a method based on the predator-prey technique, with the aim of providing a solution to the problem, as well as a number of examples to prove its effectiveness. Submitted by Administrador Re-UNIR Re-UNIR (reunir@unir.net) on 2019-12-03T08:22:09Z No. of bitstreams: 1 ijimai20121_5_1_pdf_24294.pdf: 440636 bytes, checksum: 63a237a6b427c31f75ea72be91e7d96a (MD5); Made available in DSpace on 2019-12-03T08:22:09Z (GMT). No. of bitstreams: 1 ijimai20121_5_1_pdf_24294.pdf: 440636 bytes, checksum: 63a237a6b427c31f75ea72be91e7d96a (MD5)

Siirtola, Pekka Röning, Juha https://reunir.unir.net/handle/123456789/9597 2019-12-02T13:43:47Z

Recognizing Human Activities Userindependently on Smartphones Based on Accelerometer Data Siirtola, Pekka; Röning, Juha Real-time human activity recognition on a mobile phone is presented in this article. Unlike in most other studies, not only the data were collected using the accelerometers of a smartphone, but also models were implemented to the phone and the whole classification process (preprocessing, feature extraction and classification) was done on the device. The system is trained using phone orientation independent features to recognize five everyday activities: walking, running, cycling, driving a car and sitting/standing while the phone is in the pocket of the subject's trousers. Two classifiers were compared, knn (k nearest neighbors) and QDA (quadratic discriminant analysis). The models for real-time activity recognition were trained offline using a data set collected from eight subjects and these offline results were compared to real-time recognition rates, which are obtained by implementing models to mobile activity recognition application which currently supports two operating systems: Symbian^3 and Android. The results show that the presented method is light and, therefore, suitable for be used in real-time recognition. In addition, the recognition rates on the smartphones were encouraging, in fact, the recognition accuracies obtained are approximately as high as offline recognition rates. Also, the results show that the method presented is not an operating system dependent. Submitted by Administrador Re-UNIR Re-UNIR (reunir@unir.net) on 2019-12-02T13:43:47Z No. of bitstreams: 1 IJIMAI20121_5_5.pdf: 384789 bytes, checksum: 3fc2de3c84520a4808e6218a437f750f (MD5); Made available in DSpace on 2019-12-02T13:43:47Z (GMT). No. of bitstreams: 1 IJIMAI20121_5_5.pdf: 384789 bytes, checksum: 3fc2de3c84520a4808e6218a437f750f (MD5)

García, Óscar Alonso, Ricardo S. Tapia, Dante I. Guevara, Fabio https://reunir.unir.net/handle/123456789/9577 2019-12-04T09:03:21Z

Wireless Sensor Networks and Real-Time Locating Systems to Fight against Maritime Piracy García, Óscar; Alonso, Ricardo S.; Tapia, Dante I.; Guevara, Fabio There is a wide range of military and civil applications where Wireless Sensor Networks (WSNs) and Multi-Agent Systems (MASs) can be used for providing context-awareness for troops and special corps. On the one hand, WSNs comprise an ideal technology to develop Real-Time Locating Systems (RTLSs) aimed at indoor environments, where existing global navigation satellite systems do not work properly. On the other hand, agent-based architectures allow building autonomous and robust systems that are capable of working on highly dynamic scenarios. This paper presents two piracy scenarios where the n-Core platform can be applied. n-Core is a hardware and software platform intended for developing and deploying easily and quickly a wide variety of WSNs applications based on the ZigBee standard. In the first scenario a RTLS is deployed to support boarding and rescue operations. In the second scenario a multi-agent system is proposed to detect the unloading of illegal traffic of merchandise at ports. Submitted by Administrador Re-UNIR Re-UNIR (reunir@unir.net) on 2019-11-25T13:39:30Z No. of bitstreams: 1 IJIMAI20121_5_2.pdf: 512417 bytes, checksum: c12a838275bc55d6e9a20090acb3cc36 (MD5); Made available in DSpace on 2019-11-25T13:39:30Z (GMT). No. of bitstreams: 1 IJIMAI20121_5_2.pdf: 512417 bytes, checksum: c12a838275bc55d6e9a20090acb3cc36 (MD5)

Goyal, Sumit Kumar Goyal, Gyanendra https://reunir.unir.net/handle/123456789/9576 2019-11-25T13:30:01Z

Evaluation of Shelf Life of Processed Cheese by Implementing Neural Computing Models Goyal, Sumit; Kumar Goyal, Gyanendra For predicting the shelf life of processed cheese stored at 7-8 C, Elman single and multilayer models were developed and compared. The input variables used for developing the models were soluble nitrogen, pH; standard plate count, Yeast & mould count, and spore count, while output variable was sensory score. Mean Square Error, Root Mean Square Error, Coefficient of Determination and Nash - Sutcliffo Coefficient were applied in order to compare the prediction ability of the developed models. The Elman models got simulated very well and showed excellent agreement between the experimental data and the predicted values, suggesting that the Elman models can be used for predicting the shelf life of processed cheese. Submitted by Administrador Re-UNIR Re-UNIR (reunir@unir.net) on 2019-11-25T13:30:01Z No. of bitstreams: 1 IJIMAI20121_5_8.pdf: 354637 bytes, checksum: a0f05c6bfb57dea450dca1a5de6797de (MD5); Made available in DSpace on 2019-11-25T13:30:01Z (GMT). No. of bitstreams: 1 IJIMAI20121_5_8.pdf: 354637 bytes, checksum: a0f05c6bfb57dea450dca1a5de6797de (MD5)

Khim Chong, Chuii Saberi Mohamad, Mohd Deris, Safaai Shahir Shamsir, Mohd Wen Choon, Yee En Chai, Lian https://reunir.unir.net/handle/123456789/9575 2019-11-25T13:22:09Z

Improved Differential Evolution Algorithm for Parameter Estimation to Improve the Production of Biochemical Pathway Khim Chong, Chuii; Saberi Mohamad, Mohd; Deris, Safaai; Shahir Shamsir, Mohd; Wen Choon, Yee; En Chai, Lian This paper introduces an improved Differential Evolution algorithm (IDE) which aims at improving its performance in estimating the relevant parameters for metabolic pathway data to simulate glycolysis pathway for yeast. Metabolic pathway data are expected to be of significant help in the development of efficient tools in kinetic modeling and parameter estimation platforms. Many computation algorithms face obstacles due to the noisy data and difficulty of the system in estimating myriad of parameters, and require longer computational time to estimate the relevant parameters. The proposed algorithm (IDE) in this paper is a hybrid of a Differential Evolution algorithm (DE) and a Kalman Filter (KF). The outcome of IDE is proven to be superior than Genetic Algorithm (GA) and DE. The results of IDE from experiments show estimated optimal kinetic parameters values, shorter computation time and increased accuracy for simulated results compared with other estimation algorithms. Submitted by Administrador Re-UNIR Re-UNIR (reunir@unir.net) on 2019-11-25T13:22:09Z No. of bitstreams: 1 IJIMAI20121_5_3_0.pdf: 630396 bytes, checksum: 74a0895721a42251f43ea1dc5068352c (MD5); Made available in DSpace on 2019-11-25T13:22:09Z (GMT). No. of bitstreams: 1 IJIMAI20121_5_3_0.pdf: 630396 bytes, checksum: 74a0895721a42251f43ea1dc5068352c (MD5)

López-García, Gabriel Gallego-Sánchez, A. Javier Dalmau-Espert, J. Luis Molina-Carmona, Rafael Compañ-Rosique, Patricia https://reunir.unir.net/handle/123456789/9574 2019-11-25T13:11:11Z

A Grammatical Approach to the Modeling of an Autonomous Robot López-García, Gabriel; Gallego-Sánchez, A. Javier; Dalmau-Espert, J. Luis; Molina-Carmona, Rafael; Compañ-Rosique, Patricia Virtual Worlds Generator is a grammatical model that is proposed to define virtual worlds. It integrates the diversity of sensors and interaction devices, multimodality and a virtual simulation system. Its grammar allows the definition and abstraction in symbols strings of the scenes of the virtual world, independently of the hardware that is used to represent the world or to interact with it. A case study is presented to explain how to use the proposed model to formalize a robot navigation system with multimodal perception and a hybrid control scheme of the robot. The result is an instance of the model grammar that implements the robotic system and is independent of the sensing devices used for perception and interaction. As a conclusion the Virtual Worlds Generator adds value in the simulation of virtual worlds since the definition can be done formally and independently of the peculiarities of the supporting devices. Submitted by Administrador Re-UNIR Re-UNIR (reunir@unir.net) on 2019-11-25T13:11:11Z No. of bitstreams: 1 IJIMAI20121_5_4_0.pdf: 640641 bytes, checksum: d05974c0da1f4a6c5c014e86b74d0aa9 (MD5); Made available in DSpace on 2019-11-25T13:11:11Z (GMT). No. of bitstreams: 1 IJIMAI20121_5_4_0.pdf: 640641 bytes, checksum: d05974c0da1f4a6c5c014e86b74d0aa9 (MD5)

Ahmad Dargham, Jamal Chekima, Ali Gubin Moung, Ervin https://reunir.unir.net/handle/123456789/9560 2019-11-19T13:44:47Z

Fusing Facial Features for Face Recognition Ahmad Dargham, Jamal; Chekima, Ali; Gubin Moung, Ervin Face recognition is an important biometric method because of its potential applications in many fields, such as access control, surveillance, and human-computer interaction. In this paper, a face recognition system that fuses the outputs of three face recognition systems based on Gabor jets is presented. The first system uses the magnitude, the second uses the phase, and the third uses the phase-weighted magnitude of the jets. The jets are generated from facial landmarks selected using three selection methods. It was found out that fusing the facial features gives better recognition rate than either facial feature used individually regardless of the landmark selection method. Submitted by Administrador Re-UNIR Re-UNIR (reunir@unir.net) on 2019-11-19T13:44:47Z No. of bitstreams: 1 IJIMAI20121_5_7.pdf: 719614 bytes, checksum: cb284fe86989d96931d9916718c166d3 (MD5); Made available in DSpace on 2019-11-19T13:44:47Z (GMT). No. of bitstreams: 1 IJIMAI20121_5_7.pdf: 719614 bytes, checksum: cb284fe86989d96931d9916718c166d3 (MD5)