Báo cáo khoa học: "Unsupervised Coreference Resolution in a Nonparametric Bayesian Model" potx

... X, and φ denote all the entity indices, ob- served values, and parameters of the model. Note that we take a Bayesian approach in which all pa- rameters are integrated out (or sampled). The infer- ence ... is a natural penalty for each cluster which is actually used. With Z observed during sampling, we can inte- grate out β and calculate P (Z i,j |Z −i,j ) analytically, using the Chine...

Ngày tải lên: 08/03/2014, 02:21

... information about turn-taking cues. This analysis is particularly interesting in a tutor- ing domain because of the speculated unequal sta- tuses of participants. The goal is to eventually develop a ... students and hopefully lead to increased student learning, a standard perfor- mance measure of intelligent tutoring systems (Litman et. al., 2006). 2 Related Work Turn-taking has...

Ngày tải lên: 30/03/2014, 21:20

... classifier on a corpus that is automatically labeled using asso- ciation information. Self-training approaches usu- ally include the use of some manually labeled data. In contrast, our self-trained system ... USA. Karthik Raghunathan, Heeyoung Lee, Sudarshan Ran- garajan, Nathanael Chambers, Mihai Surdeanu, Dan Jurafsky, and Christopher Manning. 2010. A multi- pass sieve for coreference...

Ngày tải lên: 07/03/2014, 22:20

... opinions? Finally, approaches to opi- nion mining have implicitly assumed that the prob- lem at stake is a balanced classification problem, based on the general assumption that positive and negative ... identifying the most rele- vant challenges in mining opinions targeting media personalities, namely politicians, in comments posted by users to online news articles. We are interest...

Ngày tải lên: 20/02/2014, 05:20

... (Manning and Schütze, 1999). Multidimensional scaling is data analysis technique that provides a spatial display of the data revealing relationships between the instances in the data set (Davison, ... multidi- mensional scaling. The analyses showed that results obtained using aggregate analysis of word pronunci- ations mostly conform with the traditional phonetic classification of Bulgaria...

Ngày tải lên: 20/02/2014, 12:20

... (WSD) in several ways. First, the words to be disambiguated are entries in a lexical database, not tokens in a text corpus. Second, we take an “all-words”rather than a “lexical-sample” approach ... Sim- pleProd, and SimpleWtdSum MajSgl+Aggr: Majority vote of MajSim- pleSgl and MajAggr MajPair+Aggr: Majority vote of MajSim- plePair and MajAggr Table 2 gives recall and precision mea...

Ngày tải lên: 20/02/2014, 18:20

... to alternatives at the same conceptual level in the hiersrchy, and in msny cases reflect the tra- ditional ides of 'paradigm'. Equations within a variant set are absolute constraints, ... of class definitions. In equs. tions, unification variables have initial capitals, and negation of constants is indicated by ' '. 'kk' is the string concatenation o...

Ngày tải lên: 20/02/2014, 21:20

Ngày tải lên: 21/02/2014, 20:20

... SPACE and IDEAS ARE PHYSICAL OBJECTS, con- taining the following relevant mappings: When a person's mind is being viewed as a physical space, an idea's being physically located in the space ... view neutral mapping adjuncts (VNMAs) 1 . We regard VNMAs as standard but implicit default aspects of all view-specific metaphorical mappings. They are defaults in that they can, i...

Ngày tải lên: 22/02/2014, 02:20

... The Local Search Algorithm (i) for , and (ii) cut always arises from by adding or taking away one document into/from it; 2. since the quality of modified cuts cannot in- crease in nitely, a finite ... simulate the behavior of human annotator who finds topi- cally coherent clusters in a training collection. The task of -optimization leads to a system of linear inequalities, which we so...

Ngày tải lên: 08/03/2014, 04:22