Báo cáo khoa học: "Similarity-Based Estimation of Word Cooccurrence Probabilities" doc

... other estimation scheme has to be used. We focus here on a particular kind of configuration, word cooccurrence. Examples of such cooccurrences include relationships between head words in ... butions are clustered in word classes. The cooccurrence probability of a given pair of words then is estimated ac- cording to an averaged cooccurrence probability of the two co...

Ngày tải lên: 31/03/2014, 06:20

... existence of ‘metabolons’, transient asso- ciations of pathway enzymes in addition to stable complexes (e.g. cytochrome complexes of the electron transport chain or the covalent linkage of tryptophan synthase ... significant role in the regulation of metabolism. Whereas the usual mechanism proposed for channeling is the (often) transient inter- action of sequential pathway enzymes,...

Ngày tải lên: 19/02/2014, 18:20

... in terms of corpus frequencies: kl~ = frequency of common occurrence of word A and word B kl2 = corpus frequency of word A - kll k21 = corpus frequency of word B - kll k22 = size of corpus ... first co-occurrence vector for the case that word A is two words ahead of another word B, a second vector for the case that word A is one word ahead of word B, a...

Ngày tải lên: 08/03/2014, 06:20

... undertaken as part of a study in mechanical translation, a number of statistical data reflecting the structure of these samples were compiled. One of these, the dis- tribution of word length, is ... resulting se- quences are of a length which no practicable machine can manage. A study of the distribu- tion of the number of symbols between pairs of successive symbols...

Ngày tải lên: 16/03/2014, 19:20

... presence of hemocyanin in a broad range of ametabolous and hemimetabolous hexapod taxa. We obtained a total of 12 full-length and 5 partial cDNA sequences of hemo- cyanins from representatives of Collembola, ... tracheal system of Collembo- la, with special reference to that of Sminthurus viridis, Lubb. Q J Microsc Sci 71, 15–30. 39 Williams CB (1913) A summary of the present...

Ngày tải lên: 18/02/2014, 08:20

... probability of each word using the context made up of the previ- ous n−1 words. Let abc represent an n-gram where a is the first word, c is the last word, and b repre- sents zero or more words in ... is due to the words preceding bc less than 40 times. We can estimate their number to be a fraction of this difference. δ is an estimate of the type token ra- tio of these low count w...

Ngày tải lên: 20/02/2014, 09:20

... presentation of a single word on a screen. Latency to read the word aloud is used to diagnose the availability of alternate word senses. For example, sentence [1] above favors the verb reading of TIRE. ... thls experiment affected the initial access of meaning. Ne suggested such contexts Rrlme one reading of the ambiguous word, in the sense of Collins and Loftus (19...

Ngày tải lên: 21/02/2014, 20:20

... understanding of the differences in the kinds of non-fluencies that occur, we are left with a kind of grab bag of grammatical deviation that can never be analyzed except by some sort of general ... assigned a lexical category (or set of lexical categories) on the basis of a 2000 word lexicon and a morphological analyzer. The lexicon contains, for each word, a list of...

Ngày tải lên: 21/02/2014, 20:20

... organizers collect sequences of ‘targets’ i.e. of pro- teins, the structure of which are likely to be solved within a few weeks. These sequences are made available to the community of computational biologists ... experi- mental communities that the prediction of the structure of proteins non-evolutionarily related to proteins of known structure is not completely out of reach....

Ngày tải lên: 07/03/2014, 16:20

... guessed for distinct (occurrences of) productions are trans- ported to distinct (occurrences of) terminal produc- tions [cf. Section 3 of (Potthoff and Thomas, 1993) and page 346 of (Hoogeboom and ten Pas, ... argumentation). Instead of taking the lexicographically smallest element of pos N (r) or pos ∆ (r) in the previous proof, we can take any fixed element of that set. In the de...

Ngày tải lên: 07/03/2014, 18:20