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» Evaluating Lexical Substitution: Analysis and New Measures
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ACL
2000
13 years 9 months ago
Lexicalized Stochastic Modeling of Constraint-Based Grammars using Log-Linear Measures and EM Training
We present a new approach to stochastic modeling of constraintbased grammars that is based on loglinear models and uses EM for estimation from unannotated data. The techniques are...
Stefan Riezler, Detlef Prescher, Jonas Kuhn, Mark ...
LREC
2010
164views Education» more  LREC 2010»
13 years 9 months ago
Evaluating Machine Translation Utility via Semantic Role Labels
We present the methodology that underlies new metrics for semantic machine translation evaluation that we are developing. Unlike widely-used lexical and n-gram based MT evaluation...
Chi-kiu Lo, Dekai Wu
AAAI
2007
13 years 10 months ago
Topic Segmentation Algorithms for Text Summarization and Passage Retrieval: An Exhaustive Evaluation
In order to solve problems of reliability of systems based on lexical repetition and problems of adaptability of languagedependent systems, we present a context-based topic segmen...
Gaël Dias, Elsa Alves, José Gabriel Pe...
SMC
2007
IEEE
103views Control Systems» more  SMC 2007»
14 years 2 months ago
A new evaluation measure for information retrieval systems
Abstract— Some of the established approaches to evaluating text clustering algorithms for information retrieval show theoretical flaws. In this paper, we analyze these flaws an...
Martin Mehlitz, Christian Bauckhage, Jér&oc...
LREC
2008
128views Education» more  LREC 2008»
13 years 9 months ago
Unsupervised Lexical Acquisition for Part of Speech Tagging
It is known that POS tagging is not very accurate for unknown words (words which the POS tagger has not seen in the training corpora). Thus, a first step to improve the tagging ac...
Dan Tufis, Elena Irimia, Radu Ion, Alexandru Ceaus...