CONTENTS Invited Lectures H. Horacek, Knowledge Representation within an Intelligent Tutoring System ...3 Z. Horv´ ath, L. L¨ ovei, T. Kozsik, R. Kitlei, A. N. V´ ıg, T. Nagy, M. T´ oth, R. Kir´ aly, Modeling Semantic Knowledge in Erlang for Refactoring ..7 A. Pretschner, An Overview of Distributed Usage Control .................... 17 Knowledge in Computational Linguistics A. Varga, G. Pus ¸cas ¸u, C. Or˘ as ¸an, Identification of Temporal Expressions in the Domain of Tourism .......................................................... 29 D. T˘ atar, E. T˘ amˆ aianu-Morita, G. Czibula, Segmenting Text by Lexical Chains Distribution .............................................................. 33 A. Iftene, D. Trandabat, Recovering Diacritics using Wikipedia and Google . 37 A. Onet ¸, An Approach on Multilevel Text Mining .............................. 41 M. Cremene, F. C. Pop, S. Lavirotte, J.-Y. Tigli, Natural Language Based User Interface for On-demand Service Composition ........................ 45 S. Cojocaru, E. Boian, M. Petic, Derivational Morphology Mechanisms in Automatic Lexical Information Acquisition ...................................... 49 L. Machison, Named Entity Recognition for Romanian ......................... 53 R. Zehan, Web Interface for Rouge Automatic Summary Evaluator ............. 57 Z. Minier, Feature Selection in Text Categorization Using ℓ 1 -regularized SVMs . 61 S. Irimias ¸, A Romanian Stemmer ............................................... 65 A. Perini, D. T˘ atar, Textual Entailment as a Directional Relation Revisited . . 69 A. D. Mihis ¸, Ontological Solving of the Team Building Problem ................. 73 C. Forascu, A Romanian Corpus of Temporal Information – a Basis for Standardisation .................................................................. 77 P. Szil´ agyi, Compacting Syntactic Parse Trees into Entity Relationship Graphs 81 L. T ¸ˆ ambulea, A. Sab˘ au, From Databases to Semantic Web .................... 85 C. Bogdan, Domain Ontology of the Roman Artifacts Found in the Tomis Fortress ......................................................................... 89 xi