Báo cáo khoa học: "Extracting Hypernym Pairs from the Web" potx

... collect-ing hypernym relations from the web. Wecompare our approach with hypernym ex-traction from morphological clues and from large text corpora. We show that the abun-dance of available data on the ... a hypernym of A, B and C• A, B and C are siblings of each otherHere, sibling refers to the relative position of the words in the hypernymy tree. Two words are sib-lings of each other if they ... parent.We compute a hypernym evidence score S(h, w)for each candidate hypernym h for word w. It is the sum of the normalized evidence for the hypernymyrelation between h and w, and the evidence for...

Báo cáo khoa học: "Mining Parenthetical Translations from the Web by Word Alignment" potx

... candidate pairs, where the translation of the in-parenthesis terms is a suffix of the pre-parenthesis text. The lengths and frequency counts of the suffixes have been used to determine what is the ... a+b is the number of sentence pairs containing ei; a+c is the number of sentence pairs containing fj; d is the number of sentence pairs containing nei-ther ei nor fj. 997 The φ2 ... our modified version of the competitive link-ing algorithm, the link score of a pair of words is the sum of the φ2 scores of the words themselves, their prefixes and their suffixes. In addition...

Báo cáo khoa học: "Semantic Class Learning from the Web with Hyponym Pattern Linkage Graphs" pdf

... progresses. Initially, the seed is the onlytrusted class member and the only vertex in the graph. The bootstrapping process begins by instan-tiating the doubly-anchored pattern with the seedclass ... hyponym patterns toextract class instances from the web and then evalu-ates them further by computing mutual informationscores based on web queries. The work by (Widdows and Dorow, 2002) on lex-ical ... has two variables: the name of the se-mantic class to be learned (classname) and a mem-ber of the semantic class (classmember). The aster-isk (*) indicates the location of the extracted words.We...

Báo cáo khoa học: "Learning Transliteration Lexicons from the Web" pptx

... labeling. At the same time, we select samples of high confidence score from the rest and consider them correct E-C pairs. We then merge the labeled set with the high-confidence set in the PSM ... the selected pairs by removing the non-E-C pairs and add the labeled E-C pairs to the DQTP pool, and (iii) reestimate the PSM by using the updated DQTP pool. 1134To select the samples, we ... E-C pairs from the Web at the same time. Conceptually, the adaptive learning is carried out as follows. We obtain bilingual snippets from the Web by iteratively submitting queries to the...

Tài liệu Báo cáo khoa học: "Extracting Comparative Sentences from Korean Text Documents Using Comparative Lexical Patterns and Machine Learning Techniques" doc

... about the Ko-rean comparative syntax and collect the corpus of Korean comparative sentences from the Web. As we refer to previous studies and investigate real comparative sentences form the ... superlative 153validation show the overall precision of 88.68% and the overall recall of 88.40%. The remainder of the paper is organized as fol-lows. Section 2 describes the related work. In section ... sequence within the radius of 3 (the window size of 7) of each keyword in the sentence; we expe-rimented with radius options of 2, 3, and 4 and we achieved the best performance in the radius of...

Báo cáo khoa học: "Extracting Semantic Roles from a Model of Eventualities" pot

... First there is a transition from an initial state IS where the crate is not on the cargo boat to a final state FS where the crate is on the cargo boat. The final state can be expressed by the ... entity (crate), the THEME according to Gruber [9]. The initial state can be expressed (in this case) by the negation of the final state and is schematized in (1). The realization of the entire ... is then represented by the firing of the net which can be illustrated by the snapshots (1) and (2). 1. Is:t~ir-~O:Fs 2. IS:O [ (~):Fs To integrate the participation of "Max" in the...

Báo cáo khoa học: "Extracting Social Networks from Literary Fiction" pot

... is found, the length of the quote is added to the edge weight,under the hypothesis that the significance of the re-lationship between two individuals is proportionalto the length of the dialogue ... because the first144correlation is weak, we investigated whether fur-ther analysis could identify other evidence thatconfirms or contradicts the hypothesis.Another way to interpret hypothesis ... which the following conditions are met:1. The characters are in the same place at the same time;2. The characters take turns speaking; and3. The characters are mutually aware of eachother...

Báo cáo khoa học: "Extracting a Representation from Text for Semantic Analysis" doc

... expressiveness with regard to the relation between the student’s answer and the facet in question, (e.g., did the student contradict the facet or completely fail to address it?) Therefore, it is also ... illustrates the process of deriving the constituent facets that comprise the representation of the final reference answer. We begin by deter-mining the dependency parse following the style of ... facet is (1e) above, connecting the proposition the brass ring did not stick to the nail to the proposition the ring is not iron. In addition to specifying the headwords of inter-propositional...

Báo cáo khoa học: "Extracting Causal Knowledge from a Medical Database Using Graphical Patterns" doc

... represents the effect. The patterns arematched with the syntactic parse trees ofsentences, and the parts of the parse treethat match with the slots in the patterns areextracted as the cause or the ... “+”indicating that the node is mandatory. If the mandatory nodes are not found in the sentence,then the pattern is rejected and no information isextracted from the sentence. All other nodes areoptional. ... Precisionis the percentage of slots filled by the computerprogram that are correct (i.e. the text entered in the slot is the same as that entered by the humananalysts). If the text entered by the computerprogram...

Báo cáo khoa học: "Extracting Noun Phrases from Large-Scale Texts: A Hybrid Approach and Its Automatic Evaluation" pot

... score[i] denotes the score of position i. The words between position pre[i] and position i form the best chunk from the viewpoint of position i. The dscore(cO is the score of the probability ... P(ci) and the cscore(ci[ci-l) is the score of the probability P(cilci-l). These scores are collected from the training corpus, SUSANNE corpus (Sampson, 1993; Sampson, 1994). The details ... structures and the hierarchical structures. The heads of these phrasal structures are the first level of X'-Equivalences, that is, X. The other grammatical constituents function as the specifiers...

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