Báo cáo khoa học: "A MODEL OF SENTENCE PRODUCTION" pdf

... fre- quency of a term in the document space (x) and the average frequency of the same set of terms in the sentence space (y). For example, the average number of sentences for the set of terms ... full-text of a document. We com- pared the abstract and non-abstract terms in each of the three language models. Not all of the documents distinguished the ab- stract from the b...

Ngày tải lên: 17/03/2014, 04:20

... greater length is preferred. The coverage of an analysis is 1405 the sum of the lengths of the component analyses it consists of. Note that the coverage of an analysis will be less than its length ... first task of the robust semantic processing is to manage a possibly large number of partial analy- ses, each spanning a certain sub-interval of the input utterance. The...

Ngày tải lên: 17/03/2014, 07:20

... study of the formal properties of classes of structures defined in such a way falls within domain of Model Theory, it's not surprising that treatments of the meaning of these systems of ... ing classes of models in L 2 This approach has a K,P* number of strengths. First, as should be clear from our brief explorations of aspects of GPSG and GB~ re-formalizati...

Ngày tải lên: 17/03/2014, 09:20

... that expression of miR-27 resulted in blockade of expression of PPARc and C ⁄ EBPa, the two master regulators of adipogenesis. Importantly, expression of miR-27 was increased in fat tissue of obese ... role of miR-27 in the regulation of adipogenesis Qun Lin 1 , Zhanguo Gao 2 , Rodolfo M. Alarcon 1 , Jianping Ye 2 and Zhong Yun 1 1 Department of Therapeutic Radiology, Yale U...

Ngày tải lên: 18/02/2014, 08:20

... number of times term i occurs in D, idf i is the inverse document frequency of term i, N is the total number of documents and df i is the number of documents that contain term i. The utilization of ... whole document or a sentence, is subjective or objective, i.e. contains an expression of opin- ion, and detecting the overall polarity of the text, i.e. positive or negative. Mos...

Ngày tải lên: 20/02/2014, 04:20

... representations of sentences, where predicates correspond to single word triggers in the surface form of the sentence (typically verb lemmas), and arguments can be identified as substrings of the sentence. ... appropropriate constituents in a parse tree of a sentence. Each of these efforts employed the use of parse tree paths as predictive features, encoding the series...

Ngày tải lên: 20/02/2014, 12:20

... assessment of sentence naturalness. In the case of evaluating a single sys- tem, using the language model that generated the sentence will only confirm that the sentence does fit the language model; ... ultrasummarisa- tion model of Witbrock and Mittal (1999) consists of a content model, modelling the probability that a word in the source text will be in the summary, and a l...

Ngày tải lên: 20/02/2014, 12:20

... representation of knowledge to be delivered. We have addressed a number of Issues not previously encountered In the generation of Natural Language st the multi -sentence level, vlz: ordering among sentences ... gcel-pursuin~ planner, end the use of dynamic models of speaker and hearer to shape the text to the task at hand. STATEMENT OF THE PROBLEM The task of KDS...

Ngày tải lên: 21/02/2014, 20:20

... f'mite set of symbols, so there is only a finite number of strings of given length L, and it has a finite number of rules, so there is only a finite number of possible parse trees of given depth ... Let C a be the set of pairs [A,B] such that A B by a tree of depth n. Clearly C t is the set of pairs [A,B] such that (A ) B) is a rule of G. Also, Cn+ 1 is the s...

Ngày tải lên: 21/02/2014, 20:20

... problem of choosing the best solution(s) from a set of interpretations of the same object (in our case a segment of text). A notion of preference is stated, based on pairwise comparisons of complete ... 'sentences with a main verb are better than sentences without one'). - On the basis of a set of such statements it should be possible to establish a par- ti...

Ngày tải lên: 22/02/2014, 10:20