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SIGIR
2004
ACM
15 years 6 months ago
A formal study of information retrieval heuristics
Empirical studies of information retrieval methods show that good retrieval performance is closely related to the use of various retrieval heuristics, such as TF-IDF weighting. On...
Hui Fang, Tao Tao, ChengXiang Zhai
121
Voted
DEXA
1995
Springer
126views Database» more  DEXA 1995»
15 years 4 months ago
A Heuristic Approach for Optimization of Path Expressions
Abstract. The object-oriented database management systems store references to objects (implicit joins, precomputed joins), and use path expressions in query languages. One way of e...
Cetin Ozkan, Asuman Dogac, Cem Evrendilek
98
Voted
EOR
2008
106views more  EOR 2008»
15 years 20 days ago
Convergent Lagrangian heuristics for nonlinear minimum cost network flows
We consider the separable nonlinear and strictly convex single-commodity network flow problem (SSCNFP). We develop a computational scheme for generating a primal feasible solution...
Torbjörn Larsson, Johan Marklund, Caroline Ol...
99
Voted
ICCAD
2001
IEEE
192views Hardware» more  ICCAD 2001»
15 years 9 months ago
BOOM - A Heuristic Boolean Minimizer
We present a two-level Boolean minimization tool (BOOM) based on a new implicant generation paradigm. In contrast to all previous minimization methods, where the implicants are ge...
Jan Hlavicka, Petr Fiser
115
Voted
SIGDOC
1997
ACM
15 years 4 months ago
Usability Studies of WWW Sites: Heuristic Evaluation vs. Laboratory Testing
This paper describes the strengths and weaknesses of two usability assessment methods frequently applied to web sites. It uses case histories of WWW usability studies conducted by...
Laurie Kantner, Stephanie Rosenbaum