Plenary Lecture

Texts and Natural Language Processings in Information Retrieval

Professor Tengku Mohd T. Sembok
Kulliyyah Information and Communication Technology
International Islamic University Malaysa
Malaysia
E-mail: tmts@iium.edu.my

Abstract: The levels-of-processing theory proposes that there are many ways to process and code information. The level of processing adopted will determine the quality of the representation used to store the information in the computer memory or storage. The levels-of-processing applied in information retrieval can be classified as follows: string processing, morphological processing, syntactic processing and semantic processing. These level-of-processing are imbedded into various models of information retrieval. Conventional information retrieval models, such as Boolean and vector space models, rely on an extensive use of keywords, as independent strings, and their frequencies in storing and retrieving information. Thus string processing and morphological processing are mainly adopted in these models. It is believed that such an approach has reached its upper limit of retrieval effectiveness, and therefore, new approaches should be investigated for the development of future systems that will be more effective. With current advances in programming languages and techniques, natural language processing and understanding, and generally in the fields of artificial intelligence and cognitive science, there are now attempts made to include knowledge representation and linguistic processing into information retrieval systems. We also focus our research on the application of certain techniques on specific languages. Besides English, we focus the application of certain techniques especially on Malay and Arabic. In this paper we will highlight some of the research done in the area of information retrieval at the various levels of processing, and also expound the current research we are doing and the future direction that we would like to undertake.

Brief Biography of the Speaker: Prof. Tengku Mohd Tengku Sembok has over thirty years of experience in various fields of Information and Communication Technology. He has taught undergraduate and postgraduate programs and managed numerous R&D and consultancy projects successfully. He had supervised more than 30 PhD students successfully to completion. He obtained his B.Sc.(Hons) in Computer Science from Brighton Polytechnic in 1977, MS from Iowa University in 1981, and PhD from Glasgow University in 1989. His last appointment was as Deputy Vice Chancellor (Academic and International Affairs) in the National Defence University of Malaysia. He currently holds a chair of senior professor in Computer Science at International Islamic University of Malaysia and the Dean of Kulliyyah of ICT . He has held several academic posts at Universiti Kebangsaan Malaysia prior to his recent assignments. He is a Fellow of Academy of Sciences Malaysia, a Fellow of British Computer Society, and a fellow of Malaysian Science Association. Currently he chairs the Engineering and Computer Science Discipline of the Academy of Sciences Malaysia. He is also the Chairman of Malaysian Society of Information Retrieval and Knowledge Management.

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