Tài liệu Báo cáo khoa học: "An Empirical Study of Information Synthesis Tasks" doc

... describes an empirical study of the “In- formation Synthesis task, defined as the process of (given a complex information need) extracting, or- ganizing and inter-relating the pieces of information contained ... conclusions of this work. 2 Creation of an Information Synthesis testbed We refer to Information Synthesis as the process of generating a topic-oriented re...

Ngày tải lên: 20/02/2014, 15:20

... 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

... 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 ... count as a proposal to include it in the solution. The sofa A offers for considera- tion, is effectively proposed only after the exchange of information in [37] [39]. However, i...

Ngày tải lên: 20/02/2014, 18:20

... presence of alternative splicing around the 5¢-end of exon 6 of Meis2 and Meis3 was tested by RT-PCR. The positions of molecular mass markers are shown to the left, and the size in base pairs of the ... DNA-binding cofactors [10–12]. Meis2 is a member of the TALE superfamily of HD proteins, which are characterized by the presence of a three amino acid loop insertion between he...

Ngày tải lên: 16/02/2014, 15:20

... with an annotator’s choice of the most appropriate parse. From this record, all kinds of information can be extracted at various levels of granularity: A simplified example of the labeled tree, minimal ... will look at ways of extending our lexicon and ontology to less familiar words. 2 The Lexeed Semantic Database of Japanese The Lexeed Semantic Database of Japanese con- sists...

Ngày tải lên: 20/02/2014, 12:20

... classes of the input analysis data (test data). 2. POPULARITY OF WORDS CONSIDERING TIME-SERIES VARIATION 2.1 Stability Classes of the Words: To judge the index of popularity of words ... than that of straight line (2). The value of the slice of regression straight line (1) is also higher than that of regression straight line (2). So, we can decide that the words...

Ngày tải lên: 20/02/2014, 16:20

... Department of Computer and Information Science, Univer- sity of Pennsylvania. An Alternative Conception of Tree-Adjoining Derivation* Yves Schabes Department of Computer and Information ... of the same derived tree. This can be easily seen in that any adjunetion of/ 32 at a node at which an adjunction of/ 31 occurs could instead be replaced by an adjunction of/ 32 at...

Ngày tải lên: 20/02/2014, 21:20

... INTRODUCTION In mid-1985, a project of machine translation of Czech computer manuals into Russian was started, thus constituting a second MT project of the group of mathematical linguistics at ... Institute for Computing Machinery) at the Department of Software in cooperation with the Department of Mathematical Linguistics, Faculty of Mathematics and Physics, Charles...

Ngày tải lên: 22/02/2014, 10:20

... Component of Natural Processing George A. Miller Cognitive Science Laboratory Princeton University Language Abstract Computational linguistics is generally considered to be the branch of engineering ... useful things with linguistic signals, but it can also be viewed as an extended test of computational theories of human cognition; it is this latter perspective that psychol-...

Ngày tải lên: 20/02/2014, 18:20

... interpretations of two of the texts: the discourse trees of one analyst mirrored the paragraph structure of the texts, while the discourse trees of the other mirrored a logical organization of the ... precision of 68%. In contrast, a random pro- cedure recalled, on average, only 38.4% of the sentences considered important by the judges, with a precision of 38.4%. And t...

Ngày tải lên: 22/02/2014, 03:20