
Publications
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1985. Symbolic Semantics and Program Reduction. IEEE Trans. Software Eng.. 11:784-794.
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1996. Towards Declarative GIS Analysis. ACM-GIS. :98-104.
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1995. An Operator for Composing Deductive Databases with Theories of Constraints. LPNMR. :57-70.
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2000. Using MedLan to Integrate Geographical Data. J. Log. Program.. 43:3-14.
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1997. Applying Restriction Constraints to Deductive Databases. Ann. Math. Artif. Intell.. 19:3-25.
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1998. The Constraint Operator of MedLan: Its Efficient Implementation and Use. IICIS. :41-55.
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1996. Language Extensions for Semantic Integration of Deductive Databases. Logic in Databases. :415-434.
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2005. DrC4.5: Improving C4.5 by means of Prior Knowledge. ACM Symposium on Applied Computing.
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2006. A Tool for Economic Plans analysis based on expert knowledge and data mining techniques. IADIS International Conference Applied Computing 2006 .
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2008. Ontology-Based Business Plan Classification. EDOC. :365-371.
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1990. A Transformational Approach to Negation in Logic Programming. J. Log. Program.. 8:201-228.
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1987. Intensional Negation of Logic Programs: Examples and Implementation Techniques. TAPSOFT, Vol.2. :96-110.
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2007. Mining Clinical Data with a Temporal Dimension: A Case Study. BIBM. :429-436.
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2009. Mining Clinical, Immunological, and Genetic Data of Solid Organ Transplantation. Biomedical Data and Applications. :211-236.
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2007. Time-Annotated Sequences for Medical Data Mining. ICDM Workshops. :133-138.
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1992. The Type System of LML. Types in Logic Programming. :313-332.
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1988. A Progress Report on the LML Project. FGCS. :675-684.
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1991. Theory Construction in Computational Logic. ICLP Workshop on Construction of Logic Programs. :241-250.
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1994. Implementations of Program Composition Operations. :292–307.
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1994. Implementations of Program Composition Operations. PLILP. :292-307.
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1994. Amalgamating Language and Meta-language for Composing Logic Programs. GULP-PRODE (2). :408-422.
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1999. Dynamic composition of parameterised logic modules. Comput. Lang.. 25:211-242.
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1990. Logic Programming within a Functional Framework. PLILP. :372-386.
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1999. Dynamic Composition of Parameterised Logic Modules. Computer Languages. :211–242.
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1992. Meta for Modularising Logic Programming. META. :105-119.

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