... subj verb verb that it is the subject of 25. prep preposition before indirect object 26. ind obj indirect object of verb that it is subject of 27. obj direct object of verb that it is subject of 28. ... variety of genres. They count 2.337 instances of it, 646 of which (28%) are non- referential. Finally, Clemente et al. (2004) report that in the GENIA corpus of medic...
Ngày tải lên: 22/02/2014, 02:20
... spelling, good grammar, rhythm and flow, appropriateness of tone, and several other specific characteristics of good text. In terms of automatic evaluation, we are not aware of any technique that measures ... Methods PoStag In the first of these, we constructed a rough approximation of typical sentence grammar structure by taking bigrams over part -of- speech tags. 6 Then, given...
Ngày tải lên: 20/02/2014, 12:20
Tài liệu Báo cáo khoa học: "Automatic Extraction of Lexico-Syntactic Patterns for Detection of Negation and Speculation Scopes" pdf
... (possible) medical conditions. The importance of the task of negation and spec- ulation (a.k.a. hedge) detection is attested by a num- ber of research initiatives. The creation of the Bio- Scope corpus (Vincze ... present a linguistically moti- vated rule-based system for the detection of nega- tion and speculation scopes that performs on par with state -of- the-art machine le...
Ngày tải lên: 20/02/2014, 04:20
Báo cáo khoa học: "Automatic Detection and Correction of Errors in Dependency Treebanks" potx
... found. The overall number of errors thus seems to be over 1% of the total size of a corpus, which is expected to be of a very high quality. A fact that one has to be aware of when working with ... evaluation for the precision of our approach. 3 Variation Detection We will compare our outcomes with the results that can be found with the approach of “variation detectio...
Ngày tải lên: 07/03/2014, 22:20
Tài liệu Báo cáo khoa học: PCR detection of nearly any dengue virus strain using a highly sensitive primer ‘cocktail’ ppt
... probes or primers for the detec- tion of that pathogen against that host background. It was found that 99.99% of all possible 11-mers, 70% of all 15-mers and 5% of all 18-mers are present in the human ... of a combination of 10 PCR primers to be used in a single high-sensitivity mixed PCR reaction for the detection of dengue virus. Pri- mer sequences were computed such...
Ngày tải lên: 14/02/2014, 19:20
Tài liệu Báo cáo khoa học: "Automatic learning of textual entailments with cross-pair similarities" ppt
... the rewrite rules that describe a non trivial set of entailment cases. The experiments with the data sets of the RTE 2005 challenge show an improvement of 4.4% over the state -of- the-art methods. 1 ... ex- amples of the previous section. From the point of view of bag -of- word methods, the pairs (T 1 , H 1 ) and (T 1 , H 2 ) have both the same intra-pair simi- larity since the...
Ngày tải lên: 20/02/2014, 12:20
Tài liệu Báo cáo khoa học: "Automatic Construction of Polarity-tagged Corpus from HTML Documents" docx
... the polarity of words There are some works that discuss learning the po- larity of words instead of sentences. Hatzivassiloglou and McKeown proposed a method of learning the polarity of adjectives ... and ’-’ denotes that the word is followed by postpositional particles. For example, ’software-no’ means that ’software’ is followed by postpositional particle ’no’. Trans- lation...
Ngày tải lên: 20/02/2014, 12:20
Tài liệu Báo cáo khoa học: "Automatic Identification of Pro and Con Reasons in Online Reviews" ppt
... fixed set of features of a specific type of product, for exam- ple, ease of use, durability, battery life, photo quality, and shutter lag for digital cameras. Con- sequently, we can expect that ... sentences. Both algorithms are described in that paper. The motivation for including the list of opin- ion-bearing words as one of our features is that pro and con sentences...
Ngày tải lên: 20/02/2014, 12:20
Tài liệu Báo cáo khoa học: "Automatic Evaluation of Machine Translation Quality Using Longest Common Subsequence and Skip-Bigram Statistics" doc
... construction of N-best translation lexicons from parallel text. Melamed (1995) used the ratio (LCSR) between the length of the LCS of two words and the length of the longer word of the two ... z 2 , , z n ] is a subsequence of another sequence X = [x 1 , x 2 , , x m ], if there exists a strict increasing sequence [i 1 , i 2 , , i k ] of indices of X such that for all j...
Ngày tải lên: 20/02/2014, 16:20
Tài liệu Báo cáo khoa học: "Automatic clustering of collocation for detecting practical sense boundary" ppt
... size of a collocation is 2w+1. }),,{()( x Iiixxg ∈= is a word sense assignment function that gives the word senses numbered i of the word x. I x is the word sense indexing function of x that ... collocations. C/V means that C is limited to V as well as that all vocabularies are selected from a given corpus and 2P C/VP is all sets of C/V. In the equation (1), the freq...
Ngày tải lên: 20/02/2014, 16:20