Publications

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Book
Bahgat, R., Non-Deterministic Concurrent Logic Programming in Pandora, : World Scientific Publishing Company, 1993. Website
Book Chapter
Younan, M., S. Khattab, and R. Bahgat, "A WoT Testbed for Research and Course Projects", Managing the Web of Things: Linking the Real World to the Web: Elsevier, 2017.
Conference Paper
Younan, M., S. Khattab, and R. Bahgat, "WoTSF: A Framework for Searching in the Web of Things", 10th International Conference on Informatics and Systems , Cairo-Egypt, 2016.
Conference Proceedings
Ismael, O., S. ElBeltagy, R. Bahgat, and A. Rafea, "Agent Coalition Formation Via Inducing Trust Ratio", International Conference on Agents and Artificial Intelligence (ICAART 2009), Porto – Portugal, pp. 469-474, January, 2009. Abstract

This work presents a model for assigning trust values to agents operating within a collaborative multi-agent system. The model enables agents to assess the trustworthiness of their peers, and thus, to be able to select reliable ones for cooperation and coalition formation. In this work, the performance of a group of agents – a team – that collaborate to achieve a shared goal where the individual contribution of each agent is unknown, is evaluated. The work thus aims to present a reliable method for calculating a trust value for agents involved in teamwork. More specifically, this research presents a model – called Inducing the Trust Ratio Model - for evaluating the individual trustworthiness of a group of agents. Toward this end, the model makes use of genetic algorithms to induce the trust ratio of each coalition member. Empirical analysis is undertaken to evaluate the effectiveness of this model

Bahgat, R., and F. Saleh, "The Archaeological Map of Egypt (Archeological Heritage Resource Management System)", in Proceedings of the 29th Conference of Computer Applications and Quantitative Methods in Archaeology (CAA 2001), Sweden, pp. 253-260, 2001. Abstract
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Ismael, O., S. ElBeltagy, R. Bahgat, and A. Rafea, "Collaborative Knowledge Based System through Multi-Agent Technology", The 42nd Annual Conference on Statistics, Computer Science, and Operation Research, Cairo-Egypt, Cairo University, pp. 92-108, 2007.
Aboulwafa, S., and R. Bahgat, "DiReCT: Dirichlet-based Reputation and Credential Trust Management", In Proceedings of the 2010 7th International Conference on Informatics and Systems, (INFOS2010), Cairo-Egypt, IEEE CFP1006J-CDR, 2010.
Bahgat, R., and R. Yang, "A Distributed Repair-based Technique for Constraint Satisfaction", In Proceedings of the Seventh ISCA International Conference on Intelligent Systems, Paris-France, 1998.
Farag, G., S. AbdelRahman, R. Bahgat, and A. A-Moneim, "Estimating Negotiation Agreement Zone Using Support Vector Machine with Genetic Algorithm", In Proceedings of the 2010 7th International Conference on Informatics and Systems, (INFOS2010), Cairo-Egypt, IEEE CFP1006J-CDR, 2010.
Bahgat, R., H. Abbas, and M. Rasmy, "Evaluation of Constraint Logic Programming from an Operations Research Point of View", In Proceedings of the Third International Conference on AI Applications, Cairo-Egypt, pp. 302-313, 1995.
Mahdi, M., S. AbdelRahman, R. Bahgat, and I. Ismail, "F-Tree: an algorithm for Clustering Transactional Data Using Frequency Tree", Al-Azhar Engineering Eleventh International Conference, AEIC , Cairo, Egypt, 2010.
Hassan, B., S. Abdelrahman, and R. Bahgat, "FCICU: The Integration between Sense-Based Kernel and Surface-Based Methods to Measure Semantic Textual Similarity", The 9th International Workshop on Semantic Evaluation (SemEval-2015), Denver, Colorado – USA, 4, 2015.
Bahgat, R., M. Mahdi, and S. AbdelRahman, "Frequency Tree for Clustering Categorical Data with Similarity Measure Based on Items’ Weights", Qatar Foundation Annual research Forum, Doha-Qatar, Qatar Foundation, 2012.
Bahgat, R., M. H. Rasmy, and H. A. Abbass, "From Constraint Logic Programming (CLP) to Decision Making Logic Programming (DMLP)", In Proceedings of the 6th International Conference on Computer Theory and Applications: Alexandria –Egypt, pp. 25-37, 1997.
Bahgat, R., M. H. Rasmy, and H. A. Abbass, "The Front-End of an Intelligent Linear Goal Programming System", In Proceedings of the 6th International Conference on Computer Theory and Applications, Alexandria –Egypt, pp. 25-37, 1996.
Bahgat, R., "Hierarchical Constraint Logic Programming for Scheduling Problems", In Proceedings of the Annual Conference on Statistics Computer Science and Operations Research, Institute of Statistical Studies and Research, Cairo, 1993.
Bahgat, R., "An Image –based Information System for the Archaeological Description of Stelae", In Proceedings of the Seventh International Congress of Egyptologists, Cambride-England, 1995. Abstract
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Ali, M., S. Khattab, and R. Bahgat, "Improving Detection Accuracy in Group Testing-based Identification of Misbehaving Data Sources", The 2nd International Conference on Future Internet of Things and Cloud (FiCloud-2014), Barcelona – Spain, IEEE Computer Society CPS, pp. 167-174, 2014.
Bahgat, R., M. Helly, and A. Rafea, "Inference Mechanism for Graphical Knowledge Base Representation", In Proceedings of the Fourth World Congress on Expert Systems, Mexico City, 1998.
Younan, M., S. Khattab, and R. Bahgat, "An Integrated Testbed Environment for the Web of Things", The Eleventh International Conference on Networking and Services, Rome-Italy, pp. 69-78, 2015.
Abdelrahman, S., E. Sayed, and R. Bahgat, "The Integration among Disambiguation Lexical Resources for more Effective Phrase-Level Contextual Polarity Recognition", 9th IEEE International Conference on Computer Engineering and Systems, Cairo-Egypt, IEEE XPlore, pp. 86-91, 2014.
Bahgat, R., "A Methodological Approach for Building an Expert System for Filling Hieroglyphic Text", In Proceedings of the ISCA International Conference on Intelligent Systems, pp. 11-15, 1997. Abstract
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Mostafa, H., and R. Bahgat, "A Multi-Agent System for Behavioral Studies", in Proceedings of the ISCA 11th International Conference on Intelligent Systems, vol. 30, Boston - Massachusetts USA, pp. 120-127, July, 2002. Abstract

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Bahgat, R., "A Multimedia Information System for the Description of Scenes", In Proceedings of the International Conference on Digital Signal Processing, Limassol-Cyprus, pp. 640-645, 1995.
Bahgat, R., D. Toson, and H. Abdel-Wahed, "Non-Formal Web-Based Learning of Egyptian Cultural Heritage: A Case Study", In Proceedings of Digital Learning2005, New Delhi – India, 2005. Abstract
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