a probabilistic generative model

... Portugal. Federico Sangati and Chiara Mazza. 2009. An English Dependency Treebank ` a la Tesni ` ere. In The 8th In- ternational Workshop on Treebanks and Linguistic Theories, pages 173–184, Milan, ... have chosen the same strategy we have described in (Sangati et al., 2009). The idea consists of utilizing a state of the art parser to compute a list of k-best candidates of a test sentence, and ... utilize a state of the art parser for PS trees (Charniak, 1999), and transform each candidate to TDS. This strategy can be considered a first step to efficiently test and compare different models...

Ngày tải lên: 20/02/2014, 04:20

... measure shows substantial im- provement in structural disambiguation over a syntax-based approach. 1. Introduction In a large natural language processing system, such as a machine translation ... R&D Road II, Science-Based Industrial Park Hsinchu, TAIWAN 30077, R.O.C. ABSTRACT In natural language processing, ambiguity res- olution is a central issue, and can be regarded as a ... from a semantic representation. In general, a particular interpretation of a sentence can be represented by an annotated syntax tree (AST), which is a syntax tree annotated with fea- ture...

Ngày tải lên: 20/02/2014, 21:20

... esti- mated by the PageRank, which is calculated using a standard iterative algorithm with a damping fac- tor of 0.85 (Brin and Page, 1998). Dynamic quality: by “dynamic”, we mean the quality ... query expansion (Macdonald and Ounis, 2007), hierarchical lan- guage model (Petkova and Croft, 2006), and for- mal model generation (Balog et al., 2006; Fang et al., 2006). However, all of them ... Alias, new email (N AE ) 7% / 0.4600 Ritiwari rti- wari@hotmail.com Table 1. Various masks and their ambiguity 1) Every occurrence of a candidate’s email address is normalized to the appropriate...

Ngày tải lên: 08/03/2014, 01:20

... Using A Generative Model Based On Frequent Episodes In Event Sequences Srivatsan Laxman Microsoft Research Sadashivnagar Bangalore 560080 slaxman@microsoft.com Vikram Tankasali Microsoft Research Sadashivnagar Bangalore ... Downey et al. [3] already introduced formal models and languages that encode search b ehavior as character sequences, with a view to comparing search behavior in different scenarios. We formulated ... users a new interface a ordance (e.g., sort search results based on different meta-data), or search paradigm (e.g., en- gage in an instant messaging conversation with a domain expert) to encourage...

Ngày tải lên: 23/03/2014, 13:20

Ngày tải lên: 23/03/2014, 14:20

Ngày tải lên: 30/03/2014, 21:20

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Ngày tải lên: 31/03/2014, 20:20

Ngày tải lên: 23/06/2014, 01:20

... learning framework, which overcomes the challenges about scalability and adaptability of the previous approaches. We have then adapted the probabilistic framework to a Vietnamese domain - real ... processor Annotator Translator Learner Query Translator Attr1…. Attr2…. Attr3…. . 37 the MAP and MRR of BM25 and the probabilistic approach, we can infer that our applied approach is ... Sriram Raghavan, Shivakumar Vaithyanathan, and Huaiyu Zhu. Avatar information extraction system. IEEE Data Eng. Bull. [23] Sándor Dominich. The Modern Algebra of Information Retrieval. The Book...

Ngày tải lên: 23/11/2012, 15:04

Ngày tải lên: 05/09/2013, 16:30

Ngày tải lên: 06/09/2013, 05:48

... first solve (1) and (2) simultaneously numerically, and then integrate (3) to obtain the function A   . 32.3 Calibration Let  0  0 be given. The value at time t of a bond maturing at time t + ... , 1 2  2 2 C 2 2  ; (3) A 0 = 0; Chapter 32 A two-factor model (Duffie & Kan) Let us define: X 1 t= Interest rate at time t X 2 t= Yield at time t on a bond maturing at time t +  0 Let X 1 0 ... CHAPTER 32. A two-factor model (Duffie & Kan) 321 32.2 Zero-coupon bond prices The value at time t  T of a zero-coupon bond paying $1 at time T is B t; T =IE " exp  , Z T t X 1 u...

Ngày tải lên: 18/10/2013, 02:20

... portals. It is essentially the organizational culture and employee attitudes toward change that matter. Organizational Factors Organizational factors include organizational culture, opportunities ... employees, they may impact the remaining two. For instance, managers may develop an organizational culture that facilitates the implementation of changes, and specifically technological changes. To ... technology and particularly the Internet and the World Wide Web has dramatically changed how organizations operate. The most far-reaching changes to careers are coming from transformations of work and...

Ngày tải lên: 24/10/2013, 08:20

... transition. As mentioned in an earlier chapter, the density may attain values that are substantially higher than random close packing, and quite close to the crystalline limit [131, 132]. An analogous ... investigations. The model [174] is based on the generalisation of an earlier cellular automaton (CA) model [22, 75, 83, 165] of an avalanching sandpile. This version of the model contains only near-neighbour ... very asymmetrically shaped, and there is a strong preferred orientation, the nonequilibrium regime of granular dynamics will carry all the usual characteristics of ageing. Now recall that that...

Ngày tải lên: 01/11/2013, 08:20

Ngày tải lên: 13/12/2013, 11:36

Ngày tải lên: 18/12/2013, 10:08

... 4.2: Creating a Logical Data Model In this activity, you will use the skills learned in this module to define the relationships within a logical data model and produce a sample ER diagram for ... the Ferguson and Bardell, Inc. case study. In each of the two exercises in this activity, you analyze a single aspect of a logical data design. At the end of each exercise, the class will discuss ... cardinality and existence characteristics of each of the relationships defined in Exercise 1. ! Identify cardinality 1. For each relationship on your ER diagram, ask the question “How many...

Ngày tải lên: 21/12/2013, 06:16

Ngày tải lên: 03/01/2014, 19:37