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» Collaborative Recommending using Formal Concept Analysis
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CISS
2008
IEEE
15 years 4 months ago
A lower-bound on the number of rankings required in recommender systems using collaborativ filtering
— We consider the situation where users rank items from a given set, and each user ranks only a (small) subset of all items. We assume that users can be classified into C classe...
Peter Marbach
SIGSOFT
1998
ACM
15 years 1 months ago
Reengineering Class Hierarchies Using Concept Analysis
The design of a class hierarchy may be imperfect. For example, a class C may contain a member m not accessed in any C-instance, an indication that m could be eliminated, or moved ...
Gregor Snelting, Frank Tip
JITECH
2010
160views more  JITECH 2010»
14 years 4 months ago
Social software for business process modeling
Formal models of business processes are used for a variety of purposes. But where the elicitation of the characteristics of a business process usually takes place in a collaborati...
Agnes Koschmider, Minseok Song, Hajo A. Reijers
SPIRE
2010
Springer
14 years 7 months ago
Fingerprinting Ratings for Collaborative Filtering - Theoretical and Empirical Analysis
Abstract. We consider fingerprinting methods for collaborative filtering (CF) systems. In general, CF systems show their real strength when supplied with enormous data sets. Earl...
Yoram Bachrach, Ralf Herbrich
AO
2005
120views more  AO 2005»
14 years 9 months ago
Modes of concept definition and varieties of vagueness
The paper considers the problem of defining concepts within formal ontologies. A number of distinct modes of definition are identified, which represent alternative viewpoints on t...
Brandon Bennett