Báo cáo khoa học: "Optimistic Backtracking A Backtracking Overlay for Deterministic Incremental Parsing" ppt

... ranking of candidate transitions. Treating backtracking as a ranking problem has several attractive features. It may combine global and local syntactic and semantic information related to each ... Backtracking Optimistic Backtracking can be added as an overlay to a transition-based parser in order to evaluate the parser in non -deterministic mode. The overlay has a linear tim...

Ngày tải lên: 30/03/2014, 21:20

... 5¢-CTC GAGATGGATAAAGTTTTAAACAGAG-3¢ and LTA- 1R, 5¢-TGAAGGCAAATCTCTGGAC-3¢ for the former, and LTA–M2F, 5¢-CAGCTGTTTTGCTTGAATTATG-3¢ and LTA–2R, 5¢-GAATTCATTATGTTTCAGGTTCA GGGG-3¢ for the latter. The ... isolation and long-term culture of organ-specific blood vascular and lymphatic endothelial cells of the mouse Takashi Yamaguchi, Taeko Ichise, Osamu Iwata, Akiko Hori, Tomomi Adachi, Masar...

Ngày tải lên: 18/02/2014, 17:20

... takes as input file(s) annotated in the S ENSEVAL-2 lexical sample format, which is an XML–based format that has been used for both the S ENSEVAL-2 and SENSEVAL-3 exercises. A file in this format ... stage, per- forms a transformation on the data, and then passes on the processed data structures to the next stage in the pipeline. We have created a protocol that defines the structure and...

Ngày tải lên: 08/03/2014, 04:22

... natural language queries and translate them into a database query language. Also, WOLFIE could possibly assist in translation from one natural language to another. 2 Problem Definition and ... type:pasta]l, [person, sex:male, age:child], [male], [child], [food, type:pasta], [food], and [pasta]. The TLGGs for pasta are the same as for boy. The TLGGs for hammer are [obj, type:ham...

Ngày tải lên: 17/03/2014, 09:20

... lexical information in DATR can be made available in PATR-usable feature struc- tures. 4.1 A DATR-PATR INTERFACE The first idea that one might have is to exploit the syntactic similarities ... A completely different approach is to formulate a DATR theory which gives the lexical information in a PATR-usable format (i.e. a feature structure) as the result of the evaluation of...

Ngày tải lên: 18/03/2014, 02:20

... situation: After having noted that several paragraphs in a row including title and author tags were usually wrong (and should have been marked as list items instead), we looked for extracts containing ... http://info.ox.ac.uk/bnc/ performed validation checks. The same happens for corpora that have been manually revised. As regards sentence separation, Johansson et al. (1996) mention tha...

Ngày tải lên: 23/03/2014, 19:20

... motivate a speaker to use a variant in place of a canonical form (Glucksberg, 1993). Nevertheless, lexical and syntactic flexibility may well be used as partial indicators of semantic ana- lyzability, ... knowledge about the lexicosyntactic be- haviour of idiomatic combinations. We put for- ward a means for automatically discovering the set of syntactic variations that are tolerate...

Ngày tải lên: 31/03/2014, 20:20

... Schemes for Statistical Machine Translation Fatiha Sadat Institute for Information Technology National Research Council of Canada fatiha.sadat@cnrc-nrc.gc.ca Nizar Habash Center for Computational Learning ... features in Arabic words are realized tem- platically by applying a different pattern to the Arabic root. As a result, extracting the lexeme (or lemma) of an Arabic word is not...

Ngày tải lên: 20/02/2014, 11:21

... Lexical items with similar eharacterics can be grouped together as a class; we may, for example, have a class 'noun' as a superclass of lexicai items 'boy', 'girl', ... 'case' and whose value is 'subject' is sent to the object he 0. As a result, he0's variable case has a value 'subject'. The value of the evaluati...

Ngày tải lên: 21/02/2014, 20:20

... directly assists RNA splicing and is a DNA endonuclease. Proc Natl Acad Sci USA 94, 8994–8999. 28 Nishioka M, Fujiwara S, Takagi M & Imanaka T (1998) Characterization of two intein homing endo- nucleases ... codons, i.e. TGA and TAG stop codons from TGG(Trp), and TAA stop codon from CAA(Gln). The substrate DNA that contains TGA or TAG was not cleaved, while the substrate containing a...

Ngày tải lên: 07/03/2014, 17:20