Báo cáo khoa học: "An Empirical Evaluation of Data-Driven Paraphrase Generation Techniques" pptx

... of two worlds: the language modeling capability of N-grams and the parse quality of context-free grammars. The rest of the paper is organized as fol- lows: first, we present an overview of ... number of parameters for the type of PLTIGs used in this paper is 2(V+I)+2V(K)(V+I), where K is the number of adjunction sites per tree. The first term of the equation is the n...

Ngày tải lên: 23/03/2014, 19:20

... Association for Computational Linguistics An Empirical Evaluation of Data-Driven Paraphrase Generation Techniques Donald Metzler Information Sciences Institute Univ. of Southern California Marina del Rey, ... Experimental Evaluation The goal of our experimental evaluation is to ana- lyze the effectiveness of a variety of paraphrase gen- eration techniques, ranging fr...

Ngày tải lên: 30/03/2014, 21:20

... k train (w) denote the number of occurrences of w in the training corpus, and k test (w) denote the number of occurrences of w in the test corpus. We define the empirical discount of w to be d(w) = k train (w) ... per- vasive phenomenon of growing empirical discounts, except in the case of extremely similar corpora. Growing discounts of this sort were previously sug- gested...

Ngày tải lên: 20/02/2014, 04:20

... The first goal of our work is the generation of a testbed (ISCORPUS) with manually produced reports that serve as a starting point for further em- pirical studies and evaluation of information ... is the native language of the subjects recruited for the manual generation of reports. Out of the CLEF topic set, we have chosen the eight topics with the largest number of docume...

Ngày tải lên: 20/02/2014, 15:20

... exist to the set of constraint equations, each varl in the set of equations must have a solution. For exam- ple, if 5 instances of sofas are known for varsola, but every assignment of a value to ... de- grees of strength) to some future course of action. The only distinction is whether the commitment is conditional on H's agreement (Offer) or not (Com- mit). With an O...

Ngày tải lên: 20/02/2014, 18:20

... Treebank-4(CTB4). We presented an empirical study of Chinese chunk- ing on this corpus. First, we made an evaluation on the corpus to clarify the performance of state- of- the-art models in Chinese ... in this study. Training Test Num of Files 728 110 Num of Sentences 9,878 5,290 Num of Words 238,906 165,862 Num of Phrases 141,426 101,449 Table 2: Information of the CTB4 Co...

Ngày tải lên: 08/03/2014, 02:21

... the context of the selection task, by going through the architecture of the evaluation framework. 3.1 The evaluation framework architecture Figure 4 shows the architecture of the evaluation ... extensively studied in decision analysis: the selection of a subset of preferred objects (e.g., houses) out of a set of possible alternatives. In the evaluation framework t...

Ngày tải lên: 08/03/2014, 05:20

... smaller one because the final accuracy of the former is higher than that of the latter. 6 The variance of a set of selected examples is defined Table 1: Variances of Selected Examples Iteration 234567891011 1,250 ... curve varies de- pending on the size of a pool. Surprisingly, the per- formance of a larger pool is worse than that of a smaller pool in the early stage of traini...

Ngày tải lên: 17/03/2014, 08:20

... Abstract We refine and extend prior views of the descrip- tion, purposes, and contexts -of- use of acknowledg- ment acts through empirical examination of the use of acknowledgments in task-based conversa- ... seek to refine and extend prior views of the description, purposes, and contexts -of- use of acknowledgment acts through empirical examina- tion of the use of...

Ngày tải lên: 17/03/2014, 09:20

... method of training probabilistic LR parsers Mark-Jan Nederhof Faculty of Arts University of Groningen P.O. Box 716 NL-9700 AS Groningen The Netherlands markjan@let.rug.nl Giorgio Satta Dept. of Information ... state. We will assume that PDTs consist of three types of transitions, of the form P a,b → P Q (a push tran- sition), of the form P a,b → Q (a swap transition), and o...

Ngày tải lên: 31/03/2014, 03:20