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Proceedings of the Fifth Mexican International Conference in Computer Science, 2004. ENC 2004.最新文献

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Abstract channels as connectors for software components in group communication services 将通道抽象为组通信服务中软件组件的连接器
Proceedings of the Fifth Mexican International Conference in Computer Science, 2004. ENC 2004. Pub Date : 2004-09-20 DOI: 10.1109/ENC.2004.1342593
J. Fanchon, K. Drira, S. Hernández
{"title":"Abstract channels as connectors for software components in group communication services","authors":"J. Fanchon, K. Drira, S. Hernández","doi":"10.1109/ENC.2004.1342593","DOIUrl":"https://doi.org/10.1109/ENC.2004.1342593","url":null,"abstract":"Building new services by assembling software components, when adopted at the communication level, would allow developers to build powerful group communication services by assembling proven and efficient algorithms for ordered group communication. The integration of communication protocols with different delivery policies has not been addressed in past research on group communication. This integration cannot be considered as concatenation of protocols and needs delivery policies to be redefined in the context of multi-channel communication. Our paper deals with this issue. We define communication channels as software connectors of the communication level for coordinated group communication. We cover the three standard delivery policies (FIFO order, causal order, and total order).","PeriodicalId":103999,"journal":{"name":"Proceedings of the Fifth Mexican International Conference in Computer Science, 2004. ENC 2004.","volume":"311 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2004-09-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124423046","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 13
Intelligent search method for the optimal design of a clean room robot manipulator 基于智能搜索的洁净室机器人机械手优化设计方法
Proceedings of the Fifth Mexican International Conference in Computer Science, 2004. ENC 2004. Pub Date : 2004-09-20 DOI: 10.1109/ENC.2004.1342613
Ignacio Juarez Campos, B. J. Campos
{"title":"Intelligent search method for the optimal design of a clean room robot manipulator","authors":"Ignacio Juarez Campos, B. J. Campos","doi":"10.1109/ENC.2004.1342613","DOIUrl":"https://doi.org/10.1109/ENC.2004.1342613","url":null,"abstract":"The paper presents the use of an artificial intelligence technique dedicated to find the near optimal design of a robot manipulator which transfers silicon wafers for the electronic manufacturing. This task requires the manipulator to move as smooth as possible. The environment where the manipulator works must be free from airborne particles that are able to damage the production of very integrated electronic circuits. Poor mechanical interactions, resulting from rough and jerky motions, ease the production of these destructive micro particles. There are some strategies providing the very necessary smooth motions: by means of trajectory planning or by means of mechanical design. The paper focuses in finding the near optimal design taking in account the link length ratio. Due to the huge search space, it is necessary the use of an intelligent, robust and suitable method. A genetic based search technique has proved a suitable performance in finding the best manipulator for the mentioned task.","PeriodicalId":103999,"journal":{"name":"Proceedings of the Fifth Mexican International Conference in Computer Science, 2004. ENC 2004.","volume":"96 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2004-09-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115620706","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
QA on the Web: a preliminary study for Spanish language 网络问答:西班牙语的初步研究
Proceedings of the Fifth Mexican International Conference in Computer Science, 2004. ENC 2004. Pub Date : 2004-09-20 DOI: 10.1109/ENC.2004.1342623
Alejandro Del-Castillo-Escobedo, M. Montes-y-Gómez, Luis Villaseñor-Pineda
{"title":"QA on the Web: a preliminary study for Spanish language","authors":"Alejandro Del-Castillo-Escobedo, M. Montes-y-Gómez, Luis Villaseñor-Pineda","doi":"10.1109/ENC.2004.1342623","DOIUrl":"https://doi.org/10.1109/ENC.2004.1342623","url":null,"abstract":"Finding accurate information on the Web has become a challenge due to the increment in the number of documents available online. Current search engines retrieve relevant documents to general - often short - user queries, but fail extracting answers to simple factual questions in natural language. This work presents the basis of a statistical question answering system capable to find answers to factual questions in Spanish language from the Web. This approach is supported on data redundancy rather than on sophisticated linguistic analyses of either questions and candidate answers. Preliminary results show that it is feasible to find concise and accurate answers from the Web to factual questions made in Spanish language. The study also concludes that the available Spanish documents in the Web are redundant enough in order to apply statistical methods like those described in this document in order to provide better mechanisms for information access.","PeriodicalId":103999,"journal":{"name":"Proceedings of the Fifth Mexican International Conference in Computer Science, 2004. ENC 2004.","volume":"44 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2004-09-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129051924","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 20
Web spoofing and phishing attacks and their prevention 网络欺骗和网络钓鱼攻击及其预防
Proceedings of the Fifth Mexican International Conference in Computer Science, 2004. ENC 2004. Pub Date : 2004-09-20 DOI: 10.1109/ENC.2004.1342578
A. Herzberg
{"title":"Web spoofing and phishing attacks and their prevention","authors":"A. Herzberg","doi":"10.1109/ENC.2004.1342578","DOIUrl":"https://doi.org/10.1109/ENC.2004.1342578","url":null,"abstract":"The main security mechanism for web surfing is the SSL/TLS protocol. This is a good tool, but, it has limitations and should be used carefully. We discuss the main limitations and weaknesses of SSL/TLS as currently implemented in browsers, and show how they are exploited in spoofing (site impersonation) and phishing (scam sites) attacks. Finally we discuss some possible solutions.","PeriodicalId":103999,"journal":{"name":"Proceedings of the Fifth Mexican International Conference in Computer Science, 2004. ENC 2004.","volume":"30 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2004-09-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130361390","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 4
Culturizing differential evolution for constrained optimization 约束优化的差分进化培养
Proceedings of the Fifth Mexican International Conference in Computer Science, 2004. ENC 2004. Pub Date : 2004-09-20 DOI: 10.1109/ENC.2004.1342621
R. Becerra, C. Coello
{"title":"Culturizing differential evolution for constrained optimization","authors":"R. Becerra, C. Coello","doi":"10.1109/ENC.2004.1342621","DOIUrl":"https://doi.org/10.1109/ENC.2004.1342621","url":null,"abstract":"We propose the use of differential evolution as a population space of a cultural algorithm, applied to the solution of constrained optimization problems. Differential evolution is a relatively recent evolutionary algorithm that has been found to be very robust as a search engine for real parameter optimization. Adding different knowledge sources to the variation operator of differential evolution it is possible to improve the search and reduce the computational cost necessary to approximate the global optima of different problems. The proposed technique is validated using a set of well-known constrained optimization problems commonly adopted in the specialized literature. The approach is compared with respect to two techniques that are representative of the state-of-the-art in the area.","PeriodicalId":103999,"journal":{"name":"Proceedings of the Fifth Mexican International Conference in Computer Science, 2004. ENC 2004.","volume":"15 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2004-09-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127143224","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 45
Parallel processor scheduling problems with optimal due interval 具有最优到期时间间隔的并行处理器调度问题
Proceedings of the Fifth Mexican International Conference in Computer Science, 2004. ENC 2004. Pub Date : 2004-09-20 DOI: 10.1109/ENC.2004.1342631
A. Janiak, M. Marek
{"title":"Parallel processor scheduling problems with optimal due interval","authors":"A. Janiak, M. Marek","doi":"10.1109/ENC.2004.1342631","DOIUrl":"https://doi.org/10.1109/ENC.2004.1342631","url":null,"abstract":"In the paper we consider two problems, in which we should find a schedule of jobs on parallel processors and a common due interval determination for all jobs such that the criterion value is minimized. A due interval is a generalization of the classical due date and describes a time interval, in which a job should be finished. In the first problem we minimize the sum of the total tardiness, total earliness and due interval size. In the second problem, we minimize the weighted maximum of the following three parts: maximum tardiness, maximum earliness and due interval size. We proved that the considered problems are equivalent to the strong NP-hard classical scheduling problem with the parallel processors subject to the minimization of the makespan criterion.","PeriodicalId":103999,"journal":{"name":"Proceedings of the Fifth Mexican International Conference in Computer Science, 2004. ENC 2004.","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2004-09-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131350697","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 8
Development of local vision-based behaviors for a robotic soccer player 机器人足球运动员局部视觉行为的开发
Proceedings of the Fifth Mexican International Conference in Computer Science, 2004. ENC 2004. Pub Date : 2004-09-20 DOI: 10.1109/ENC.2004.1342617
A. Salim, O. Fuentes, A. Muñoz-Meléndez
{"title":"Development of local vision-based behaviors for a robotic soccer player","authors":"A. Salim, O. Fuentes, A. Muñoz-Meléndez","doi":"10.1109/ENC.2004.1342617","DOIUrl":"https://doi.org/10.1109/ENC.2004.1342617","url":null,"abstract":"This research focuses on the development of local vision-based behaviors for the robotic soccer domain. The behaviors, which include finding ball, approaching ball, finding goal, approaching goal, shooting and avoiding, have been designed and implemented using a robust layered control system. The avoiding behavior was learned using the C4.5 decision tree algorithm, the rest of the behaviors were programmed by hand. We describe the vision system employed by a mobile robot. Additionally, we compare two pixel classification techniques. One technique is based on the fast and cheap color image segmentation for interactive robots and the other one is based on the artificial life paradigm. We describe experimental results obtained using a Pioneer 2-DX robot equipped with a single camera, playing on an enclosed soccer field with forward role.","PeriodicalId":103999,"journal":{"name":"Proceedings of the Fifth Mexican International Conference in Computer Science, 2004. ENC 2004.","volume":"720 ","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2004-09-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114003582","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 3
Identifying knowledge management needs in software maintenance groups: a qualitative approach 识别软件维护团队中的知识管理需求:一种定性方法
Proceedings of the Fifth Mexican International Conference in Computer Science, 2004. ENC 2004. Pub Date : 2004-09-20 DOI: 10.1109/ENC.2004.1342591
O. M. Rodríguez-Elías, A. I. Martínez-García, A. Vizcaíno, J. Favela, M. Piattini
{"title":"Identifying knowledge management needs in software maintenance groups: a qualitative approach","authors":"O. M. Rodríguez-Elías, A. I. Martínez-García, A. Vizcaíno, J. Favela, M. Piattini","doi":"10.1109/ENC.2004.1342591","DOIUrl":"https://doi.org/10.1109/ENC.2004.1342591","url":null,"abstract":"Software maintenance is an activity that requires lots of knowledge. For example, maintainers must know what changes should do to the software, where to do those changes and how those changes can affect other modules of the system. Frequently, they do not have enough knowledge to make the best decision and must consult other information sources, but these sources are often unknown or difficult to locate. Therefore, knowledge management could be useful to address some of these problems; however, before knowledge management tools could be developed for software maintenance groups, some questions must be answered: such as what kinds of problems could be solved. In this paper, a qualitative approach to the identification of knowledge management needs in software maintenance teams is presented. This approach has been applied in two case studies, and an agent-based knowledge management tool has been designed and implemented from the results obtained.","PeriodicalId":103999,"journal":{"name":"Proceedings of the Fifth Mexican International Conference in Computer Science, 2004. ENC 2004.","volume":"127 10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2004-09-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124462686","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 15
Collaborative environments for digital publishing 数字出版的协作环境
Proceedings of the Fifth Mexican International Conference in Computer Science, 2004. ENC 2004. Pub Date : 2004-09-20 DOI: 10.1109/ENC.2004.1342624
J. A. Sánchez, Yazmin Morales, Luis Arturo Flores
{"title":"Collaborative environments for digital publishing","authors":"J. A. Sánchez, Yazmin Morales, Luis Arturo Flores","doi":"10.1109/ENC.2004.1342624","DOIUrl":"https://doi.org/10.1109/ENC.2004.1342624","url":null,"abstract":"This work presents a software platform designed and implemented to support the creation of digital publishing organizations (DPOs) and to mediate the collaborative interaction among participants of the digital publishing process. We posit that as digital publications become the norm, the organization of publishing entities is expected to evolve and to differ significantly from current print-oriented publishers. Our major goal is to support the entire digital publishing process, which may vary from DPO to DPO. Distinctive features of our design include facilities for users to define the structure, participants and genres handled by DPOs, as well as tools to support the processes involved in authoring, reviewing, publishing and using digital materials.","PeriodicalId":103999,"journal":{"name":"Proceedings of the Fifth Mexican International Conference in Computer Science, 2004. ENC 2004.","volume":"128 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2004-09-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127967165","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Virtual Campeche: A Web based virtual three-dimensional tour 虚拟坎佩切:一个基于网络的虚拟三维之旅
Proceedings of the Fifth Mexican International Conference in Computer Science, 2004. ENC 2004. Pub Date : 2004-09-20 DOI: 10.1109/ENC.2004.1342598
J. Zára, Bedrich Benes, Rocio Ruiz-Rodarte
{"title":"Virtual Campeche: A Web based virtual three-dimensional tour","authors":"J. Zára, Bedrich Benes, Rocio Ruiz-Rodarte","doi":"10.1109/ENC.2004.1342598","DOIUrl":"https://doi.org/10.1109/ENC.2004.1342598","url":null,"abstract":"We present a Web-based application that allows a user to walk through, see, and interact with a fully three-dimensional model of an old Mexican city. The city itself motivates this work. Campeche is of enormous historical value and has been placed by UNESCO on their list of the world cultural heritage sites. A virtual visit can benefit both tourists and scientists. We show how the model was created and how certain technical issues were addressed. The application runs interactively over a modem-based connection. It first displays primary visual clues and refines the details later. A data prefetcher loads the potentially visible data in advance. The system loads data from the neighborhood by which the user passes using the VRML proximity sensors. In such a way it loads the local neighborhood of the location of the visitor in advance. The application is context-sensitive and can display additional textual and image information.","PeriodicalId":103999,"journal":{"name":"Proceedings of the Fifth Mexican International Conference in Computer Science, 2004. ENC 2004.","volume":"40 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2004-09-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129258009","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 9
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