Báo cáo khoa học: "Cross-Lingual Latent Topic Extraction" pot

... paper, we propose a latent topic extracting method which assigns topics to events. We also show that our pro- posed method is useful togenerate a document summary based on a latent topic. 1 Introduction Recently, ... of Events. We use LDA as a latent topic analysis method, and assign topics to Events in a document. To examine our proposed method’s performance on extracting latent...

Ngày tải lên: 23/03/2014, 16:20

... adapting an Information Ex- traction system to new topics is an expen- sive and slow process, requiring some knowledge engineering for each new topic. We propose a new paradigm of Informa- tion ... system to a new topic. For example, at the later MUC evaluations, system developers spent one month for the knowledge engineering to customize the system to the given test topic. Research ....

Ngày tải lên: 31/03/2014, 01:20

... denotes w i a topic word, and y i = 3 denotes w i neither a sentiment nor topic word. Our goal is to predict labels on D T to extract topic and sentiment words for constructing topic and 411 sentiment ... of our methods. 2 Related Work 2.1 Sentiment or Topic Lexicon Extraction Sentiment or topic lexicon extraction is to iden- tify the sentiment or topic words from text. In the p...

Ngày tải lên: 19/02/2014, 19:20

... of the AFNLP, pages 710–718, Suntec, Singapore, 2-7 August 2009. c 2009 ACL and AFNLP Modeling Latent Biographic Attributes in Conversational Genres Nikesh Garera and David Yarowsky Department ... USA {ngarera,yarowsky}@cs.jhu.edu Abstract This paper presents and evaluates several original techniques for the latent classifi- cation of biographic attributes such as gen- der, age and native...

Ngày tải lên: 20/02/2014, 07:20

... approx- imation hypothesis for sentences in which it occurs. We evaluate the partition by examining its consis- tency with the maximum approximation hypothe- sis by considering the alignment hypothesis ... all translations for source n-gram , and is a specific translation hypothesis within this set. When considering only those hypothesis translation extracted from a partic- ular sentence pair...

Ngày tải lên: 20/02/2014, 16:20

... and F-measure (harmonic mean) with respect to the 898 triples in the key. Target relations (slots) are poten- tially list-valued, that is, more than one value can be valid for a relation (possibly at

Ngày tải lên: 07/03/2014, 18:20

... one, it maintains two sets of topics (latent distributions over words) denoted by β and γ, one for classes of each ar- gument. A topic id k represents a pair of topics, β k and γ k , that co-occur ... pre- dictive tasks. Unsupervised topic models, such as latent Dirichlet allocation (LDA) (Blei et al., 2003) and its variants are characterized by a set of hidden topics, which represent...

Ngày tải lên: 07/03/2014, 22:20

Ngày tải lên: 07/03/2014, 22:20

Ngày tải lên: 08/03/2014, 00:20

... Illinois Chicago, IL 60607 USA bdieugen@cs.uic.edu Abstract We discuss Feature Latent Semantic Analysis (FLSA), an extension to Latent Semantic Analysis (LSA). LSA is a statistical method that is ordinar- ily ... tutoring dia- logues. 1 Introduction In this paper, we propose Feature Latent Semantic Analysis (FLSA) as an extension to Latent Seman- tic Analysis (LSA). LSA can be thought...

Ngày tải lên: 08/03/2014, 04:22