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PODS
2004
ACM
139views Database» more  PODS 2004»
15 years 10 months ago
On Preservation under Homomorphisms and Unions of Conjunctive Queries
Unions of conjunctive queries, also known as select-project-join-union queries, are the most frequently asked queries in relational database systems. These queries are definable b...
Albert Atserias, Anuj Dawar, Phokion G. Kolaitis
75
Voted
IJCAI
2007
14 years 12 months ago
Semantic Smoothing of Document Models for Agglomerative Clustering
In this paper, we argue that the agglomerative clustering with vector cosine similarity measure performs poorly due to two reasons. First, the nearest neighbors of a document belo...
Xiaohua Zhou, Xiaodan Zhang, Xiaohua Hu
DEXA
2005
Springer
101views Database» more  DEXA 2005»
15 years 12 days ago
On the Midpoint of a Set of XML Documents
The WWW contains a huge amount of documents. Some of them share the subject, but are generated by different people or even organizations. To guarantee the interchange of such docu...
Alberto Abelló, Xavier de Palol, Mohand-Sai...
JIKM
2007
103views more  JIKM 2007»
14 years 10 months ago
Education for sustainability: Creating Skills in Human Capital Analysis
This paper presents the role of an innovative university masters’ degree program as a basis for skills development in human capital analysis for finance and business students in...
Carol Royal, Loretta O'Donnell
HEURISTICS
2002
152views more  HEURISTICS 2002»
14 years 10 months ago
A Constraint-Based Method for Project Scheduling with Time Windows
This paper presents a heuristic algorithm for solving RCPSP/max, the resource constrained project scheduling problem with generalized precedence relations. The algorithm relies, a...
Amedeo Cesta, Angelo Oddi, Stephen F. Smith