Sciweavers

ACL
2009
13 years 3 months ago
Learning Semantic Correspondences with Less Supervision
A central problem in grounded language acquisition is learning the correspondences between a rich world state and a stream of text which references that world state. To deal with ...
Percy Liang, Michael I. Jordan, Dan Klein
ACL
2009
13 years 3 months ago
A Gibbs Sampler for Phrasal Synchronous Grammar Induction
We present a phrasal synchronous grammar model of translational equivalence. Unlike previous approaches, we do not resort to heuristics or constraints from a word-alignment model,...
Phil Blunsom, Trevor Cohn, Chris Dyer, Miles Osbor...
ACL
2009
13 years 3 months ago
A Non-negative Matrix Tri-factorization Approach to Sentiment Classification with Lexical Prior Knowledge
Sentiment classification refers to the task of automatically identifying whether a given piece of text expresses positive or negative opinion towards a subject at hand. The prolif...
Tao Li, Yi Zhang 0005, Vikas Sindhwani
ACL
2009
13 years 3 months ago
Bilingual Co-Training for Monolingual Hyponymy-Relation Acquisition
This paper proposes a novel framework called bilingual co-training for a largescale, accurate acquisition method for monolingual semantic knowledge. In this framework, we combine ...
Jong-Hoon Oh, Kiyotaka Uchimoto, Kentaro Torisawa
ACL
2009
13 years 3 months ago
Semantic Tagging of Web Search Queries
We present a novel approach to parse web search queries for the purpose of automatic tagging of the queries. We will define a set of probabilistic context-free rules, which genera...
Mehdi Manshadi, Xiao Li
ACL
2009
13 years 3 months ago
Employing Topic Models for Pattern-based Semantic Class Discovery
A semantic class is a collection of items (words or phrases) which have semantically peer or sibling relationship. This paper studies the employment of topic models to automatical...
Huibin Zhang, Mingjie Zhu, Shuming Shi, Ji-Rong We...
ACL
2009
13 years 3 months ago
Answering Opinion Questions with Random Walks on Graphs
Opinion Question Answering (Opinion QA), which aims to find the authors' sentimental opinions on a specific target, is more challenging than traditional factbased question an...
Fangtao Li, Yang Tang, Minlie Huang, Xiaoyan Zhu
ACL
2009
13 years 3 months ago
Paraphrase Identification as Probabilistic Quasi-Synchronous Recognition
We present a novel approach to deciding whether two sentences hold a paraphrase relationship. We employ a generative model that generates a paraphrase of a given sentence, and we ...
Dipanjan Das, Noah A. Smith
ACL
2009
13 years 3 months ago
Modeling Latent Biographic Attributes in Conversational Genres
This paper presents and evaluates several original techniques for the latent classification of biographic attributes such as gender, age and native language, in diverse genres (co...
Nikesh Garera, David Yarowsky
ACL
2009
13 years 3 months ago
A Metric-based Framework for Automatic Taxonomy Induction
This paper presents a novel metric-based framework for the task of automatic taxonomy induction. The framework incrementally clusters terms based on ontology metric, a score indic...
Hui Yang, Jamie Callan