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SIGIR
2003
ACM
13 years 10 months ago
Investigating the relationship between language model perplexity and IR precision-recall measures
An empirical study has been conducted investigating the relationship between the performance of a generative language model in terms of perplexity and the corresponding informatio...
Leif Azzopardi, Mark Girolami, Keith van Rijsberge...
VALUETOOLS
2006
ACM
162views Hardware» more  VALUETOOLS 2006»
13 years 11 months ago
Using UML state machines and petri nets for the quantitative investigation of ETCS
This paper proposes the modeling of technical systems and their behavior by means of Unified Modeling Language (UML) State Machines and the extending UML Profile for Schedulabil...
Jan Trowitzsch, Armin Zimmermann
LREC
2008
112views Education» more  LREC 2008»
13 years 6 months ago
Modeling Document Dynamics: an Evolutionary Approach
News articles about the same event published over time have properties that challenge NLP and IR applications. A cluster of such texts typically exhibits instances of paraphrase a...
Jahna Otterbacher, Dragomir R. Radev
RIAO
2007
13 years 6 months ago
Using Prior Information Derived from Citations in Literature Search
Researchers spent a large amount of their time searching through an ever increasing number of scientific articles. Although users of scientific search engines prefer the ranking o...
Edgar Meij, Maarten de Rijke