Báo cáo khoa học: "Unsupervised Ontology Induction from Text" doc

... Background 2.1 Ontology Learning In general, ontology induction (constructing an ontology) and ontology population (mapping tex- tual expressions to concepts and relations in the ontology) remain ... inducing ontology over individual words rather than arbitrarily large meaning units (e.g., idioms, phrasal verbs, etc.). Most importantly, existing approaches typically separate onto...

Ngày tải lên: 30/03/2014, 21:20

... the information derived from text is incorporated into our models, it will help increase the sophistication of our linguistic models. I suggest that in order to move from our current impoverished ... jective uses of pronouns. For I and me this dis- tinction is predictable both from the lexical items themselves and from the structure in which they occur. In Fidditch, both subje...

Ngày tải lên: 31/03/2014, 18:20

... prob- ability as we obtain the same translation entry from two different knowledge sources (one is from par- allel corpora and the other one is from the Chinese monolingual corpora). Once we obtain ... relatively easy to train a translation system to translate from English to Chinese, except that we need to train a Chinese language model from the Chinese monolingual data. It is wort...

Ngày tải lên: 20/02/2014, 09:20

... 801–808, Sydney, July 2006. c 2006 Association for Computational Linguistics Semantic Taxonomy Induction from Heterogenous Evidence Rion Snow Computer Science Department Stanford University Stanford, ... (H ij |E H ij ) is then trained using logistic regression, predicting the noun-pair hypernymy label from WordNet from the feature vector of lexico-syntactic patterns. The hypernym cl...

Ngày tải lên: 20/02/2014, 12:20

Ngày tải lên: 20/02/2014, 12:20

... total # words in utterance distance (sec.) from start to wj distance (sec.) from wj to end distance (words) from start to wj distance (words) from wj to end is wi accented or not/ or, cliticized, ... hypotheses derived from our own observa- tions and from previous theoretical and practi- cal studies of boundary location. Our corpus for this investigation is 298 sentences...

Ngày tải lên: 08/03/2014, 07:20

... orthography-based with information automatically extracted from semantic word co- occurrence patterns in the input corpus. Word induction from natural language text without word boundaries is also ... Past verb negašt-æm I wrote Noun from verb Negæreš Writing Table 2. Some example words. 2 Related Works There are several approaches for inducing mor- phemes from text. Some of t...

Ngày tải lên: 17/03/2014, 22:20

... grade 3-6 responses to 287 questions from the Assessing Science Knowledge (ASK) project (Lawrence Hall of Science, 2006). The re- sponses, which range in length from moderately short verb phrases ... representation intended to allow more detailed assessment of stu- dent responses to questions from an intelligent tu- toring system (ITS). Assessment within current ITSs generally provi...

Ngày tải lên: 23/03/2014, 17:20

... surface-form from the set of possi- bilities. In unification approaches, choosing a par- ticular surface form to output tends to be regarded (at least theoretically) as a separate task from gen- ... content-determin- ation rule is chosen based on the inputs; this rule specifies what information from the KB should be communicated to the user, and what overall format the response s...

Ngày tải lên: 17/03/2014, 08:20

... (which words are used) and non-lexical (how the words are used) causes. 1 Introduction It is well-known from Information Theory that the most efficient way to send information through noisy channels is ... and Nowak, 2000). Kontoyiannis (1996) also reports results on 5 consecutive blocks of characters from the works 1 It may seem like an arbitrary choice, but a word is a natural unit of l e...

Ngày tải lên: 31/03/2014, 06:20