Báo cáo khoa học: "A Study on Automatically Extracted Keywords in Text Categorization" doc

... the positions of the LIRs in introns and intergenic regions. A short distance to the exon– intron boundary or transcription starting point is an indication that an LIR is functioning in the gene. A ... Ribonucleotide binding 0.01047 GO:0008092 Cytoskeletal protein binding 0.046358 GO:0031226 Intrinsic to plasma membrane 0.011022 GO:0005515 Protein binding 0.047541 A study on human lon...

Ngày tải lên: 07/03/2014, 00:20

... Machine learning in au- tomated text categorization. ACM Computing Sur- veys, 34(1):1˜n47. Amit Singhal, Gerard Salton, and Chris Buckley. 1995. Length normalization in degraded text collections. Technical ... normalization. Notation Normalization n (none) 1 c (cosine) 1 √ w 2 1 +w 2 2 + +w 2 n Significant research has been done in IR on di- verse weighting functions and not all ve...

Ngày tải lên: 20/02/2014, 04:20

... models. 1 Introduction Open domain natural language question answer- ing (QA) is a process of automatically finding an- swers to questions searching collections of text files. There are intensive ... information from pair of texts, i.e., question as hypothesis and candidate sentence as the text, potentially indicating containment of true answer, and cast the inference recognition as classi...

Ngày tải lên: 20/02/2014, 07:20

... Transformation Percentage (%) Insertion 8.09 Deletion 5.48 Substitution 86.43 Table 2. Distribution of Insertion, Deletion and Substitution Transformation. Substitution Deletion Insertion u ... meaning. Thus we need to consider only monotone alignment at phrase level, i.e., k , as in equation (4). In addition, the word-level reordering within phrase is learned during trai...

Ngày tải lên: 20/02/2014, 12:20

... {0,1} n | s · s = m} consisting of all binary strings of fixed length n that contain exactly m ones. Then the maximization prob- lem (4) can be transformed into an inner maximiza- tion ˆs (m) = argmax s∈S m E[F(s,·)], ... for text categorization. ACM Transac- tions on Information Systems, 24(2):190–218. Also in ICML 2004. Samuel S. Gross, Olga Russakovsky, Chuong B. Do, and Ser- afim Batz...

Ngày tải lên: 20/02/2014, 12:20

... identification, the re- pair metarule will be fired from position 0 to position 5 meaning the parser needs to find an interpretation starting at position 5 and ending at the last position in the input. ... phrases containing editing terms as constituents, whereas in our approach editing terms are separate utterances. 4In cases of overlapping utterances, it will take multiple in...

Ngày tải lên: 20/02/2014, 19:20

... 'lengthened' intonational phrases in repair intervals, as illustrated in the single-phrase reparandum in (8), where the corresponding fluent ver- sion of the reparandum is predicted to contain four ... work in computational linguis- tics treated repairs as one type of ill-formed input and proposed solutions based upon extensions to existing text parsing techniques such...

Ngày tải lên: 20/02/2014, 21:20

... section motivates the application of finite-state parsing techniques at the phonetic level in order to exploit certain classes or" contextual constraints. -In the second section, the parsing ... acoustic/phonetic realizations depending on the context. Fur example, the phoneme/t/ is typically realized with a different allophone (phonetic variant) in syllable initial position...

Ngày tải lên: 21/02/2014, 20:20

... combined within one input node. Generation consists of tak- ing the input node and using it to create a tree representation of the output. For this purpose, the MNLG tries to match the input node ... variable. In the latter instance, the node is expanded in a separate step by the refer- ring expressions generation module. This module finds the discourse referent in the common ground whi...

Ngày tải lên: 22/02/2014, 02:20

... Giver", dominat- ing their planning For this reason, all of our analysis considers where the "instruction Follower" produces backchannel continuers in relation to the instruction Giver's ... was indicated by interjections, sentence-final particles, and imperative and conclusive verb forms, to- gether with a rise or fall in intonation. Hearer use of a backchannel contin...

Ngày tải lên: 22/02/2014, 02:20