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SIGIR
2002
ACM
15 years 3 months ago
Two-stage language models for information retrieval
The optimal settings of retrieval parameters often depend on both the document collection and the query, and are usually found through empirical tuning. In this paper, we propose ...
ChengXiang Zhai, John D. Lafferty
TOMACS
1998
140views more  TOMACS 1998»
15 years 3 months ago
Technical Note: A Hierarchical Computer Architecture Design and Simulation Environment
architectures at multiple levels of abstraction, encompassing both hardware and software. It has five modes of operation (Design, Model Validation, Build Simulation, Simulate Syste...
Paul S. Coe, Fred W. Howell, Roland N. Ibbett, Lau...
TOSEM
2002
118views more  TOSEM 2002»
15 years 3 months ago
Modeling software architectures in the Unified Modeling Language
Abstract. The Unified Modeling Language (UML) is a family of design notations that is rapidly becoming a de facto standard software design language. UML provides a variety of usefu...
Nenad Medvidovic, David S. Rosenblum, David F. Red...
WWW
2002
ACM
15 years 3 months ago
Improvement of HITS-based algorithms on web documents
In this paper, we present two ways to improve the precision of HITS-based algorithms on Web documents. First, by analyzing the limitations of current HITS-based algorithms, we pro...
Longzhuang Li, Yi Shang, Wei Zhang
SAC
2008
ACM
15 years 3 months ago
Dynamic populations in genetic algorithms
Biological populations are dynamic in both space and time, that is, the population size of a species fluctuates across their habitats over time. There are rarely any static or fix...
Zhanshan (Sam) Ma, Axel W. Krings
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