By Jiawei Han (auth.), Stefano Spaccapietra, Fred Maryanski (eds.)
Searching for Semantics: info Mining, opposite Engineering Stefano Spaccapietra Fred M aryanski Swiss Federal Institute of know-how collage of Connecticut Lausanne, Switzerland Storrs, CT, united states overview AND destiny instructions within the previous couple of years, database semantics learn has became sharply from a hugely theoretical area to 1 with extra specialise in useful facets. The DS- 7 operating convention held in October 1997 in Leysin, Switzerland, demon strated the extra pragmatic orientation of the present iteration of best researchers. The papers offered on the assembly emphasised the 2 significant components: the invention of semantics and semantic information modeling. The paintings within the latter type exhibits that even if object-oriented database administration structures have emerged as commercially possible prod ucts, many basic modeling concerns require additional research. cutting-edge object-oriented platforms give you the power to explain complicated items and contain suggestions for mapping from a relational database to things. even if, we needs to additional discover the expression of data concerning the dimensions of time and area. Semantic types own the richness to explain platforms containing spatial and temporal info. The problem of in corporating those positive factors in a fashion that promotes effective manipulation via the topic professional nonetheless calls for large development.
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Extra resources for Data Mining and Reverse Engineering: Searching for semantics. IFIP TC2 WG2.6 IFIP Seventh Conference on Database Semantics (DS-7) 7–10 October 1997, Leysin, Switzerland
Uthurusamy, eds, 'Advances in Knowledge Discovery and Data Mining', AAAI/MIT Press, pp. 399-421. , Zaiane, O. , Zhang, S. & Zhu, H. (1997), DBMiner: A system for data mining in relational databases and data warehouses, in 'Proc. CASCON'97: Meeting of Minds', Toronto, Canada, pp. 249-260. Jain, A. K. & Dubes, R. C. (1988), Algorithms for Clustering Data, Printice Hall. , Han, J. & Chiang, J. Y. (1997), Metarule-guided mining of multidimensional association rules using data cubes, in 'Proc. 3rd Int.
In (Paredaens et al. 1995) it is shown that for every formula on a binary many sorted first order language there is an effective procedure that transforms it into an "equivalent" set of G-Log rules and a goal; the converse is trivially true. Hence, G-Log can be seen as a graphical counterpart of logic. WG-Iog is only a syntactic variant of G-Iog, whose semantics we want to retain in order to keep its expressive power and representation capability; thus the same correspondence holds for WG-Iog. Consider for instance the rule of Figure 9.
Management of Data', Montreal, Canada, pp. 103-114. , Deshpande, P. M. & Naughton, J. F. (1997), An array-based algorithm for simultaneous multidimensional aggregates, in 'Proc. 1997 ACM-SIGMOD Int. Conf. Management of Data', Tucson, Arizona, pp. 159-170. 2 Semantic Approaches to Structuring and Querying Web Sites E. it L. it Abstract In order to pose effective queries to Web sites, some form of site data model must be implicitly or explicitly shared by users. Many approaches try to compensate for the lack of such a common model by considering the hypertextual structure of Web sites; unfortunately, this structure has usually little to do with data semantics.