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CIKM
2010
Springer
14 years 8 months ago
Hypergraph-based multilevel matrix approximation for text information retrieval
In Latent Semantic Indexing (LSI), a collection of documents is often pre-processed to form a sparse term-document matrix, followed by a computation of a low-rank approximation to...
Haw-ren Fang, Yousef Saad
SIGIR
2008
ACM
14 years 9 months ago
Exploiting sequential dependencies for expert finding
We propose an expert finding method based on assumption of sequential dependence between a candidate expert and the query terms in the scope of a document. We assume that the stre...
Pavel Serdyukov, Henning Rode, Djoerd Hiemstra
CICLING
2009
Springer
14 years 7 months ago
NLP for Shallow Question Answering of Legal Documents Using Graphs
Abstract. Previous work has shown that modeling relationships between articles of a regulation as vertices of a graph network works twice as better than traditional information ret...
Alfredo Monroy, Hiram Calvo, Alexander F. Gelbukh
CIKM
2011
Springer
13 years 9 months ago
Lower-bounding term frequency normalization
In this paper, we reveal a common deficiency of the current retrieval models: the component of term frequency (TF) normalization by document length is not lower-bounded properly;...
Yuanhua Lv, ChengXiang Zhai
ICDAR
2003
IEEE
15 years 3 months ago
Graphics Recognition - from Re-engineering to Retrieval
In this paper, we discuss how the focus in document analysis, generally speaking, and in graphics recognition more specifically, has moved from re-engineering problems to indexin...
Karl Tombre, Bart Lamiroy