Báo cáo khoa học: "AUTOMATIC ACQUISITION OF THE LEXICAL SEMANTICS OF VERBS FROM SENTENCE FRAMES*" doc

... as the number of web pages containing the words the and ’and’. 891 matched. On the basis of these, we then calculate the probability of a certain qualia element given a certain role on the ... clue c, the query c(n) is sent to the web search engine and the abstracts of the first m docu- ments matching this query are downloaded. Then the snippets are processed to find...

Ngày tải lên: 08/03/2014, 02:21

... AUTOMATIC ACQUISITION OF THE LEXICAL SEMANTICS OF VERBS FROM SENTENCE FRAMES* Mort Webster and Mitch Marcus Department of Computer and Information Science University of Pennsylvania ... note that the trajectory of em break takes the learner through a sequence of states whose semantics are useful ap- proximations of the meaning of this verb. In the...

Ngày tải lên: 31/03/2014, 18:20

... '~vhat you then do is you make them think (These examples are actual text from the Penn corpus.) The extraordinary accuracy of verb detection within a tiny fraction of the rate achieved ... million words of the Wall Street Journal accuracy of SF detection is shown in the second 1If there were room to store an unlimited number of uninflected verbs for late...

Ngày tải lên: 20/02/2014, 21:20

... match the frame adj-obj-for-to-inf VP is the NP of the PP. The only part of the feature structure which is not represented by the GRs is coin- dexation between the omitted direct object 1 of the VP-complement ... emitted by the parser for each SCF. The data used during development consisted of the sentences in the BNC in which one of the 23 adjectives 4 giv...

Ngày tải lên: 08/03/2014, 04:22

... vector is the sum of the vectors of concepts that occur in a context win- dow. If many of the concepts in a window have a strong component for one of the topics, then the sum of the vectors, the context ... w are vectors and N is the dimen- sion of the vector space. The more overlap there is between the neighbours of the two words whose vectors are compa...

Ngày tải lên: 08/03/2014, 04:22

... to the size of the manual corpus. When we trained with that size of the automatic corpus, the performance was very low compared to the performance of the manual cor- pus. The reason is that the ... the seeds and comparable to that with the manual corpus.Moreover, the domain of the manual training corpus is same with that of the test corpus, i.e., news and n...

Ngày tải lên: 08/03/2014, 04:22

... gram-based and the other is grammar-based. N-gram model estimates the probability of a sentence as the product of the probability of each word in the sentence. It assumes that probability of the nth ... representation of a/) of an n-word sentence. When wk(1 < k <_ n) is the head of the sentence, any D of the sentence can be represented by...

Ngày tải lên: 08/03/2014, 05:21

... list of elements occurring after the verb, and this list together with the record of whether the verb is passive yields the overall con- text in which the verb appears. The parser skips to the ... pieces of text from other parts of the New York Times newswire, a portion of which is shown in Fig. 1, out of 200 verbs, the acquired subcatego- rization dicti...

Ngày tải lên: 23/03/2014, 20:20

... only the first paragraph from each report, and arranged the paragraphs in clusters based on the date of issue of the report. We used only the first paragraphs of the news reports because they tend ... (pairs) of actions that occur in time order. We then chose among these actions the ones that are typical by ranking them in terms of the fre- quency of their occurr...

Ngày tải lên: 31/03/2014, 20:20

... the relationship of these two molecules is still largely unknown. The aim of the current study was to investigate the potential involvement of nucleolin ⁄ C23 in the antiapoptotic mechanism of Hsp70. ... the condensation and fragmentation of their nuclei. The percentage of apoptotic cells was calculated as the number of apoptotic cells divided by the total numb...

Ngày tải lên: 16/02/2014, 09:20