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» Set-based model: a new approach for information retrieval
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CLEF
2007
Springer
14 years 1 months ago
A Dirichlet-Smoothed Bigram Model for Retrieving Spontaneous Speech
We present two simple but effective smoothing techniqes for the standard language model (LM) approach to information retrieval [12]. First, we extend the unigram Dirichlet smoothi...
Matthew Lease, Eugene Charniak
IADIS
2003
13 years 9 months ago
Internet Geography: New Spaces of Information
The objective of great investments in telecommunication networks is to approach economies and put an end to the asymmetries. The most isolated regions could be the beneficiaries o...
Jorge Ricardo da Costa Ferreira
INTR
2007
98views more  INTR 2007»
13 years 7 months ago
User-centered evaluation of information: a research challenge
Purpose – This paper sets out to present the concept of the value of information, review the descriptive, rational, social and behavioral approaches for assessing the value of i...
Daphne R. Raban
SIGIR
2009
ACM
14 years 2 months ago
An improved markov random field model for supporting verbose queries
Recent work in supervised learning of term-based retrieval models has shown significantly improved accuracy can often be achieved via better model estimation [2, 10, 11, 17]. In ...
Matthew Lease
ESSIR
2000
13 years 11 months ago
Users in Context
Users as actors in interactive information retrieval (IIR) are seen in the contexts of their perceived work tasks and information seeking behaviour. The paper models IIR processes ...
Peter Ingwersen