Sciweavers

EMNLP
2008
13 years 6 months ago
Sparse Multi-Scale Grammars for Discriminative Latent Variable Parsing
We present a discriminative, latent variable approach to syntactic parsing in which rules exist at multiple scales of refinement. The model is formally a latent variable CRF gramm...
Slav Petrov, Dan Klein
EMNLP
2008
13 years 6 months ago
Sampling Alignment Structure under a Bayesian Translation Model
We describe the first tractable Gibbs sampling procedure for estimating phrase pair frequencies under a probabilistic model of phrase alignment. We propose and evaluate two nonpar...
John DeNero, Alexandre Bouchard-Côté,...
EMNLP
2008
13 years 6 months ago
Part-of-Speech Tagging for English-Spanish Code-Switched Text
Code-switching is an interesting linguistic phenomenon commonly observed in highly bilingual communities. It consists of mixing languages in the same conversational event. This pa...
Thamar Solorio, Yang Liu
EMNLP
2008
13 years 6 months ago
Learning with Compositional Semantics as Structural Inference for Subsentential Sentiment Analysis
Determining the polarity of a sentimentbearing expression requires more than a simple bag-of-words approach. In particular, words or constituents within the expression can interac...
Yejin Choi, Claire Cardie
EMNLP
2008
13 years 6 months ago
Online Acquisition of Japanese Unknown Morphemes using Morphological Constraints
We propose a novel lexicon acquirer that works in concert with the morphological analyzer and has the ability to run in online mode. Every time a sentence is analyzed, it detects ...
Yugo Murawaki, Sadao Kurohashi
EMNLP
2008
13 years 6 months ago
Scaling Textual Inference to the Web
Most Web-based Q/A systems work by finding pages that contain an explicit answer to a question. These systems are helpless if the answer has to be inferred from multiple sentences...
Stefan Schoenmackers, Oren Etzioni, Daniel S. Weld
EMNLP
2008
13 years 6 months ago
Lattice Minimum Bayes-Risk Decoding for Statistical Machine Translation
We present Minimum Bayes-Risk (MBR) decoding over translation lattices that compactly encode a huge number of translation hypotheses. We describe conditions on the loss function t...
Roy Tromble, Shankar Kumar, Franz Josef Och, Wolfg...
EMNLP
2008
13 years 6 months ago
Automatic Prediction of Parser Accuracy
Statistical parsers have become increasingly accurate, to the point where they are useful in many natural language applications. However, estimating parsing accuracy on a wide var...
Sujith Ravi, Kevin Knight, Radu Soricut
EMNLP
2008
13 years 6 months ago
A Casual Conversation System Using Modality and Word Associations Retrieved from the Web
In this paper we present a textual dialogue system that uses word associations retrieved from the Web to create propositions. We also show experiment results for the role of modal...
Shinsuke Higuchi, Rafal Rzepka, Kenji Araki