Selected JOURNAL ARTICLES

Ling, T W, F W Tompa and T Kameda, An improved third normal form for relational databases. ACM Transactions on Database Systems, 6, no.2 (June 1981): 329-346. (United States).
Ling, T W, An analysis of multi-valued and join dependencies based on the entity-relationship approach. Data & Knowledge Engineering, 1, no.3 (1985): 253-271. (United States).
Ling, T W, Integrity constraint checking in deductive databases using the prolog not predicate. Data & Knowledge Engineering, 2 (1987): 145-168. (United States).
Ling, T W, The prolog not-predicate and negation as failure rule. New Generation Computing, 8, no.1 (1990): 5-31.
Ling, T W and P K Teo, On rules and integrity constraint in database systems. Information and Software Technology, 34, no. 3 (March 1992): 147-158. (United Kingdom).
Ling, T W and P K Teo, Toward resolving inadequacies in object-oriented data models. Information and Software Technology, 35, no.5 (May 1993): 267-276.
Grant, J, T W Ling and J M L Lee, ERL: Logic for entity relationship databases. Journal of Intelligent Information Systems : Integrating Artificial Intelligence and Database Technologies, 2 (1993): 115-147. (United States).
Ling, T W and L L Yan, NF-NR: A practical norm form for nested relations. Journal of Systems Integration, 4 (1994): 309-340. (United States).
Tan, H B K and T W Ling, Recovery of object-oriented design from existing data-intensive business programs. Information and Software Technology, 37, no.2 (February 1995): 67-77. (United Kingdom).
Ling, T W and J M L Lee, Relational to entity-relationship schema translation using semantic and inclusion dependencies. Journal of Integrated Computer-Aided Engineering, 2, no.2 (1995): 125-145. (Special Issue on Multidatabase and Interoperable Systems). (United States).
Tan, H B K and T W Ling, Components reuse for data-intensive business programs through an object-oriented architecture. Journal of Systems and Software, 34, no.1 (1996): 3-20. (United States).
Jarzabek, S and T W Ling, Model-based Support for Business Re-engineering. Information and Software Technology, 38, no.5 (1996): 355-374. (The Netherlands).
Ling, T W, C H Goh and J M L Lee, Extending classical functional dependencies for physical database design. Information and Software Technology, 38 (1996): 601-608. (United Kingdom).
Ling, T W and J M L Lee, View update in entity-relationship approach. Data & Knowledge Engineering, 19 (1996): 135-169. (United States).
Tan, H B K and T W Ling, A method for the recovery of inclusion dependencies from data-intensive business programs. Information and Software Technology, 39, no.1 (January 1997): 27-34.
Tan, Hee Beng Kuan and T W Ling, Integrated Design Patterns for Database Applications, to appear in Journal of Systems and Software.

Selected CONFERENCE PAPERS

Ling, T W, A normal form for entity-relationship diagrams. In Proceeding of the 4th International Conference on Entity-Relationship Approach, pp. 24-35. IEEE Computer Society Press USA and North Holland Publishing, 1985. (Paper presented at 4th International Conference on Entity-Relationship Approach, 28-30 October 1985, Chicago, United States).
Ling, T W, A three level schema architecture ER-based data base management system. In Proceeding of the 6th International Conference on Entity-Relationship Approach, pp. 181-196. United States: IEEE Computer Society Press and North Holland Publishing, 1987. (Paper presented at 6th International Conference on Entity-Relationship Approach, 9-11 November 1987, New York City, United States).
Ling, T W, External schemas of entity-relationship based data base managment systems. In Proceedings of the 7th International Conference on Entity-Relationship Approach, pp. 351-364. IEEE Computer Society Press and North Holland Publishing, 1988. (Paper presented at 7th International Conference on Entity-Relationship Approach, 16-18 November 1988, Rome, Italy).
Ling, T W, A normal form for sets of not-necessarily normalized relations. In Proceedings of the 22nd Hawaii International Conference on System Sciences, pp. 578-586. United States: IEEE Computer Society Press, 1989. (Paper presented at 22nd Hawaii International Conference on System Sciences, 3-6 January 1989, kailua-Kona, Hawaii, United States).
Grant, J and T W Ling, Database representation and manipulation using entity-relationship database logic. In Methodologies for Intelligent Systems, 4, edited by Z W Ras, pp. 102-109. North Holland, 1989. (Paper presented at 4th International Symposium on Methodologies for Intelligent Systems, 12-14 October 1989).
Embley, D and T W Ling, Synergistic database design using an extended entity-relationship model. In Proceedings of the 8th International Conference on Entity-Relationship Approach, pp. 118-135. IEEE Computer Society Press, 1989. (Paper presented at 8th International Conference on Entity-Relationship Approach, 18-20 October 1989, Toronto, Canada).
Ling, T W and J M L Lee, A prolog implementation of an entity-relationship based database management system. In Proceedings of the 10th International Conference on Entity Relationship Approach, edited by Toby J Teorey, pp. 587-605. San Mateo, California: ER Institute, 1991. (Paper presented at 10th International Conference on Entity Relationship Approach, 23-25 October 1991, San Mateo, California, United States).
Ling, T W and C H Goh, Logical database design with inclusion dependencies. In Proceedings of the Eight International Conference on Data Engineering, 2-3 February 1992, Tempe, Arizona, United States, pp. 642-649. United States: IEEE Computer Society Press, 1992.
Ling, T W and J M L Lee, A theory for entity-relationship view updates. In Entity-Relational Approach - ER'92, edited by G Pernul and AM Tjoa, pp. 262-279. Lecture Notes in Computer Science, No 645, edited by Goos G and Hartmanis J. Berlin Heidelberg: Springer-Verlag, 1992. (Paper presented at 11th International Conference on Entity-Relationship Approach, 7 October 1992, Karlsrulie, Germany).
Goh, C H and T W Ling, Extending the entity-relationship formalism for conceptual data modeling to capture more semantics. In Proceedings of the First International Conference on Information and Knowledge Management, 8-11 November 1992, pp. 629-636, 1992.
Yan, L L and T W Ling, Translating relational schema with constraints into OODB schema. In IFIP DS-5 Semantics of Interoperable Database Systems, edited by D Hsiao, E J Neuhold, and R Sack-Davis, pp. 65-81. Australia, November 1992. (Paper presented at DS-5 Semantics of Interoperable Database Systems, 16-20 November 1992, Lorne, Victoria, Australia).
Ling, T W, P K Teo and L L Yan, Generating object-oriented views from an ER-based conceptual schema. In The 3rd International Symposium on Database Systems for Advanced Application, 6-8 April 1993, Riviera Hotel, Taejon, South Korea, pp. 148-155. Singapore: World Scientific,
Ling, T W and S Y Lee, Improving integrity checking for there-exists constraints. In Proceedings of the Third International Symposium on Database Systems for Advanced Applications, 6-8 April 1993, Taejon, South
Ling, T W and P K Teo, Inheritance conflicts in object-oriented systems. In Proceedings of 4th International Conference on Database and Expert Systems Applications, DEXA'93, 6-8 September 1993, Prague, Czechoslovakia, edited by Vladimir Marik, Jiri Lazansky and Roland R Wagner, pp. 189-200. Berlin: Springer-Verlag, September 1993.
Lee, S Y and T W Ling, Improving integrity constraint checking for stratified deductive databases. In Database and Expert Systems Application (as Lecture Notes in Computer Science - 856), edited by D Karagiannis, pp. 591-600. Germany: Springer-Verlag, September 1994. (Paper presented at The 5th International Conference on Database and Expert Systems Applications, 7-9 September 1994, Greece).
Ling, T W and J M L Lee, Semantic dependencies in database modelling and database reverse engineering. In Proceedings of the International Symposium on Advanced Database Technologies and their Integration, 26-28 October 1994, Japan, edited by Shunsuke Uemura and Masatoshi Yoshikawa, pp. 47-54. Japan: Nara Institute of Science & Technology, 26 November 1994.
Ling, T W, PK Teo, and LL Yan Generating Object-Oriented Views from an ER-Based Conceptual Schema. DASFAA 1993: 148-155
Ling, T W and PK Teo, A normal form object-oriented entity relationship diagram. In Entity-Relationship Approach - ER'94, edited by P Loucopoulos, pp. 241-258. Lecture Notes in Computer Science, no.881. Berlin: Springer-Verlag, December 1994. (Paper presented at 13th International Conference on Entity-Relationship Approach, 13-16 December 1994, Manchester Conference Centre, Manchester, United Kingdom).
Ling, T W and PK Teo, Object migration in ISA hierarchies. In Database Systems for Advanced Applications '95, 10-13 April 1995, Singapore, edited by TW Ling and Y Masunaga, pp. 292-299. Singapore: World Scientific, 1995.
Lee, J M L and T W Ling, Resolving structural conflicts in the integration of entity-relationship schemas. In Proceedings of 14th International Conference on Object-Oriented and Entity-relationship Modeling, 13-15 December 1995, Australia, edited by MP Papazoglou, pp. 424-433. Germany: Springer-Verlag, 1995.
Lee, S Y and T W Ling, Further improvement on integrity constraint checking for stratifiable deductive databases. In Proceedings of the 22nd International Conference on Very Large Data Bases, 3-6 September 1996, Bombay, India, pp. 495-505. Bombay, September 1996.
Lee, S Y and T W Ling, Refined termination decision in active databases. In Proceedings of Database and Expert Systems Applications, edited by Abdelkader Hameurlain and A Min Tjoa, pp. 182-191. Lecturer Notes in Computer Science, vol 1308. Germany: Springer-Verlag, September 1997.
Lee, M L and T W Ling, Resolving constraint conflicts in the integration of entity-relationship schemas. In Proceedings of Conceptual Modeling - ER'97, edited by David E. Embley and Robert C. Goldstein, pp. 394-407.
Lee, S Y and T W Ling, A path removing technique for detecting trigger termination. In Proceedings of Extended Database Technolog (EDBT)'98, 23-27 March 1998, Spain, pp. 341-355. Berlin: Springer-Verlag, March 1998.
Ang, C.H., T W Ling and X M Zhou, Qualitative Spatial relationships representation IO8T. In 9th International Conference, DEXA'98, edited by Gerald Quirchmayr, Erich Schweighofer, Trevor J.M. Bench-Capon, pp. 270-279.
Ling, T W, B T Wee and S Y Lee, DO2 : Deductive Object-Oriented Database System. In Database and Expert Systems Applications, edited by G. Quirchmayr, E. Schweighofer, T.J.M. Bench-Capon, pp. 50-59. Berlin: Springer-Verlag, 1998.
Lee, S Y and T W Ling, Are your trigger rules correct ? In Ninth International Workshop on Database and Expert Systems Applications, edited by Roland R. Wagner, A Min Tjoa, pp. 837-842. Vienna: IEEE Computer Society, 1998.
Ling, T W and Y Liu, An Efficient View Maintenance Algorithm for Data Warehousing. In Advances in Database Technologies, edited by Y. Kambayashi, E.P. Lim, D.L. Lee, Y. Masunaga, M. Mohania, pp. 165-176. Berlin: Springer-Verlag, February 1999.
Ling, T W and E K Sze, Materialized View Maintenance Using Version Numbers. 6th International Conference on Database Systems for Advanced Applications (DASFAA'99), 19-22 April 1999, Hsinchu, Taiwan), IEEE Computer Society Press, April 1999, pp. 263-270.
Ling, T W and E K Sze, A Model for Evaluating Materialized View Maintenance Algorithms. WISE 2000: 374-383
E K Sze and T W Ling Efficient View Maintenance Using Version Numbers. DEXA 2001: 527-536.
Shi Guang Qiu and Tok Wang Ling View Selection in OLAP Environment DEXA 2000: 447-456.
Shi Guang Qiu and Tok Wang Ling Index Filtering and View Materialization in ROLAP Environment. CIKM 2001: 334-340

Papers on Object-Relationship-Attribute Model for Semistructured Data (ORA-SS), Database D esign, Schema Integration, XML Query Processing, ORA-Semantics based XML and Relational Database Keyword Query Proceesing

EDITORIAL WORK ON BOOKS

Ong, KL, S Conrad and T W Ling, eds, Knowledge Discovery and Temporal Reasoning in Deductive and Object-Oriented Databases. Singapore: Department of Information Systems and Computer Science, National University of Singapore, December 1995. 93 pp.
Ling, T W and Y Masunaga, eds, Database Systems for Advanced Applicatons '95 - Proceedings of the 4th International Conference on Database Systems for Advanced Applications. Singapore: World Scientific, 1995. 468 pp.
Ling, T W, AO Mendelzon and L Vieille, eds, Deductive and Object-oriented Databases - Proceedings of the 4th International Conference on Deductive and Object-oriented Databases. Germany: Springer-Verlag, 1995. 558 pp.
Ling, T W, Sudha Ram and M L Lee, eds, Conceptual Modeling - ER'98. Berlin: Springer-Verlag, November 1998. 482 pp.
Teo, Y M, M D Feng, T W Ling and Esther Loh, eds, 8th International Parallel Computing Workshop (PCW '98). Singapore, 1998. 386 pp.

EDITORIAL WORK ON JOURNALS

Ling, T W, ed, Journal of Systems Integration. 6, no.4, United States, November 1996. (Special issue on Database Systems for Advanced Applications - I).
Ling, T W, ed, Journal of Systems Integration. 7, no.1, United States, February 1997. (Special issue on Database systems for Advanced Applications - II).
Ling, T W, ed, Journal of Systems Integration. 7, no 3/4, United States, September 1997. (Special issue on Deductive and Object-Oriented Databases).
Ling, T W and Sudha Ram, ed, Data & Knowledge Engineering. 31, no 3, November 1999. (Speciall issue: ER'98).