Báo cáo khoa học: "Incorporating Lexical Priors into Topic Models" docx

... France, April 23 - 27 2012. c 2012 Association for Computational Linguistics Incorporating Lexical Priors into Topic Models Jagadeesh Jagarlamudi University of Maryland College Park, USA jags@umiacs.umd.edu Hal ... to improve both topic- word distributions (by biasing topics to pro- duce appropriate seed words) and to im- prove document -topic distributions (by bi- asing documents...

Ngày tải lên: 31/03/2014, 20:20

... 817–825, Suntec, Singapore, 2-7 August 2009. c 2009 ACL and AFNLP Incorporating Information Status into Generation Ranking Aoife Cahill and Arndt Riester Institut f ¨ ur Maschinelle Sprachverarbeitung ... influence of informa- tion status (IS) on constituent order in Ger- man, and integrate our findings into a log- linear surface realisation ranking model. We show that the distribution of...

Ngày tải lên: 08/03/2014, 00:20

... time. 1 Introduction Topic models, exemplified by latent Dirichlet alloca- tion (LDA) (Blei et al., 2003), discover latent themes present in text collections. “Topics” discovered by topic models are ... n k|d )  (i→j)∈λ β i→j + n i→j|k  j (β i→j  + n i→j  |k ) where n k|d is topic k ’s count in the document d ; α k is topic k ’s prior; Z − and L − are topic and path assignments...

Ngày tải lên: 23/03/2014, 14:20

... exploit non -lexical features. Fern ´ andez et al. (2008) ob- tained much more value from lexical than non- lexical features (and indeed no value at all from prosodic features), but lexical features ... combination of non -lexical features for each method. The HGM classifier outperforms both its SVM and DGM counterparts (p < 0.0001) 6 . In fact, even when the SVM uses lexical as w...

Ngày tải lên: 23/03/2014, 16:20

... sen- tence into a target sentence step by step. For example, Figure 1 shows a sequence of SCFG rules (Chiang, 2005; Chiang, 2007) that translates a Chinese sentence “fabiao yanjiang” into an English ... talk Figure 1: A derivation composed of SCFG rules that translates a Chinese sentence “fabiao yan- jiang” into an English sentence “give a talk”. ing with multiple models achieves an ab...

Ngày tải lên: 23/03/2014, 16:21

... 2006. c 2006 Association for Computational Linguistics Incorporating speech recognition confidence into discriminative named entity recognition of speech data Katsuhito Sudoh Hajime Tsukada Hideki ... errors as fea- 617 tures. We use NE-labeled ASR results for training to incorporate the features into the NER model as well as the corresponding transcriptions with NE labels. In testing, AS...

Ngày tải lên: 17/03/2014, 04:20

... June 2005. c 2005 Association for Computational Linguistics Incorporating Non-local Information into Information Extraction Systems by Gibbs Sampling Jenny Rose Finkel, Trond Grenager, and Christopher ... the system should be able to get it right. We show how to incorporate constraints of this form into a CRF model by using Gibbs sam- pling instead of the Viterbi algorithm as our infer-...

Ngày tải lên: 23/03/2014, 19:20

... instances of it in the ICSI Meeting Corpus (Janin et al., 2003) into six classes in terms of their grammatical cat- egories. They also took into account each charac- teristic of these types by using ... 2001; Ng and Cardie, 2002, etc.). In this paper, we incor- porate extra-linguistic information into an existing corpus-based reference resolution model, and investigate its effects on re...

Ngày tải lên: 30/03/2014, 21:20

... enriched with topic information on a small dataset of music reviews hand-annotated for topic. The results of these experiments suggest ways in which incorporating topic information into such models ... average ACT value of all adjectives in a text. TOPIC- sentence EVA The average EVA value of all adjectives which share a sentence with the topic of the text. TOPIC- sentence POT The...

Ngày tải lên: 31/03/2014, 03:20

... INCORPORATING INHERITANCE AND FEATURE STRUCTURES INTO A LOGIC GRAMMAR FORMALISM Harry H. Porter, III Oregon Graduate Center 19600 N.W. Von Neumann ... taxonomic inheritance (Ait-Kaci, 1984). We describe e-terms and how they have been incorporated into the Logic Grammar formal- ism. The result, which we call Inheritance Grammar, is a proper ... to greatest lower bounds (GLB, [-&apo...

Ngày tải lên: 31/03/2014, 17:20