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IJCAI
2003
14 years 25 days ago
Data Clustering: Principal Components, Hopfield and Self-Aggregation Networks
We present a coherent framework for data clustering. Starting with a Hopfield network, we show the solutions for several well-motivated clustering objective functions are principa...
Chris H. Q. Ding
IJCAI
2003
14 years 25 days ago
A Learning Algorithm for Web Page Scoring Systems
Hyperlink analysis is a successful approach to define algorithms which compute the relevance of a document on the basis of the citation graph. In this paper we propose a technique...
Michelangelo Diligenti, Marco Gori, Marco Maggini
IJCAI
2003
14 years 25 days ago
Aggregate Functions in Disjunctive Logic Programming: Semantics, Complexity, and Implementation in DLV
Disjunctive Logic Programming (DLP) is a very expressive formalism: it allows to express every property of finite structures that is decidable in the complexity class ¡£¢¤ (...
Tina Dell'Armi, Wolfgang Faber, Giuseppe Ielpa, Ni...
IJCAI
2003
14 years 25 days ago
Weak Conditional Logics of Normality
A default conditional α → β has most often been informally interpreted as a defeasible version of a classical conditional, usually the material conditional. That is, the intui...
James P. Delgrande
IJCAI
2003
14 years 25 days ago
Definition and Complexity of Some Basic Metareasoning Problems
In most real-world settings, due to limited time or other resources, an agent cannot perform all potentially useful deliberation and information gathering actions. This leads to t...
Vincent Conitzer, Tuomas Sandholm
IJCAI
2003
14 years 25 days ago
Complexity Results about Nash Equilibria
Vincent Conitzer, Tuomas Sandholm
IJCAI
2003
14 years 25 days ago
A Comparison of String Distance Metrics for Name-Matching Tasks
Using an open-source, Java toolkit of name-matching methods, we experimentally compare string distance metrics on the task of matching entity names. We investigate a number of dif...
William W. Cohen, Pradeep D. Ravikumar, Stephen E....
IJCAI
2003
14 years 25 days ago
A Maximal Tractable Class of Soft Constraints
Many optimization problems can be expressed us­ ing some form of soft constraints, where different measures of desirability arc associated with differ­ ent combinations of domai...
David A. Cohen, Martin C. Cooper, Peter Jeavons, A...
IJCAI
2003
14 years 25 days ago
Integrating Information to Bootstrap Information Extraction from Web Sites
In this paper we propose a methodology to learn to extract domain-specific information from large repositories (e.g. the Web) with minimum user intervention. Learning is seeded b...
Fabio Ciravegna, Alexiei Dingli, David Guthrie, Yo...