Báo cáo khoa học: "Classifying Semantic Relations in Bioscience Texts" pot

... sur-rounding forms of the stem bind which signifyentities that can enter into molecular binding re-lationships. In Srinivasan and Rindﬂesch (2002)MeSH term co-occurrences within MEDLINE ar-ticles ... classiﬁ-cation accuracy.1 IntroductionThe biosciences literature is rich, complex andcontinually growing. The National Library ofMedicine’s MEDLINE database1contains bibli-ographic citations ... of propositional in- formation from natural language text isthe identiﬁcation of semantic relations between constituents in sentences. Weexamine the problem of distinguishingamong seven relation...

Báo cáo khoa học: "Interpreting Semantic Relations in Noun Compounds via Verb Semantics" pdf

... for training and testing. The combined totalnumber of sentential contexts for our 453 NCs was7,714, containing 1,165 distinct main verbs.We next randomly split the NC data into 80%training data ... of semantic relations, but that the training data in the case of 17 semantic relations will not con-tain any instances for the EQUATIVE and TIME re-lations, meaning that all such test instances ... Proceedings of the COLING/ACL 2006 Main Conference Poster Sessions, pages 491–498,Sydney, July 2006.c2006 Association for Computational LinguisticsInterpreting Semantic Relations in Noun...

Báo cáo khoa học: "Detecting Semantic Relations between Named Entities in Text Using Contextual Features" pdf

... pairs from asingle text were not divided into the training and testsets.We also divided pairs of NEs into two types: (A)intra-sentential and (B) inter-sentential. The reasonfor dividing them ... 2004)3. STR-CT : STR with the centering top featureexplained in Section 2.3.4. STR-CS : STR with the centering structure fea-ture explained in Section 2.4.3.1 SettingWe used 1451 texts from Japanese ... with semantic relations (A) Intra-sentential 31.4% (3333 / 10626)(B) Inter-sentential 0.8% (1777 / 225516)(A)+(B) Total 2.2% (5110 / 236142)Table 1: Percent of pairs with semantic relations in annotated...

Tài liệu Báo cáo khoa học: "Ontologizing Semantic Relations" pdf

... conceptual in- stances is obtained by deleting from each candi-date those instances that are subsumed by a higher scoring conceptual instance. Remaining conceptual instances are then re-scored using ... ontologizing binary semantic relations into WordNet and we present empirical results on the task of attaching part-of and causa-tion relations. Formally, given an instance (x, r, y) of a binary ... few have linked the mined knowledge into formal knowledge re-positories. In this paper, we propose two algorithms for automatically ontologiz-ing (attaching) semantic relations into WordNet....

Báo cáo khoa học: "Preserving Semantic Dependencies in Synchronous Tree Adjoining Grammar*" doc

... preserves the scoping information in the source, by 'parsing' the scope-ordered string of elementary trees, using indices on this enu- meration instead of on a string yield. It is ... tbr opening and closing adjunction, but now let i, j, and k refer to the indices on the scoping enumeration described above, instead of on an input string. In order to reconcile scoping ranges ... preserving semantic dependencies in Isomorphic Synchronous Tree Adjoining Gram- mar (ISTAG) (Shieber, 1994; Shieber and Sch- abes, 1990), a variant of Tree Adjoining Gram- mar (Joshi, 1985) in...

Báo cáo khoa học: "Classifying Temporal Relations Between Events" ppt

... features.1 IntroductionTemporal information encoded in textual descrip-tions of events has been of interest since the earlydays of natural language processing. Lately, it hasseen renewed interest ... simultane-ous. We map the thirteenth identity into simultane-ous. One oddity is that Timebank includes both dur-ing and included by relations, but during does notappear in Timebank documentation. While ... condenseduring into included by (invert to includes).5.1 FeaturesEvent Speciﬁc: The ﬁve temporal attributes fromStage One are used for each event in the pair, as wellas the event strings, lemmas...

Báo cáo khoa học: "INFERRING DISCOURSE RELATIONS IN CONTEXT * " docx

... In using this rule, an interpreter brings to bear 'top-down' information, in the following sense. Up to now, discourse and temporal relations have been determined by using the input ... switch- ing (or, indeed, amelioration). In one sense this isn't surprising. Causal knowledge and MCT were in conflict in (2), and since both laws relate to the domain, but in incommensurable ... pushing causing the falling, given the discourse context in which the pushing and falling are described in (2), Narration is inferred after all, and so the falling precedes the push. In...

Báo cáo khoa học: "MULTILEVEL SEMANTIC ANALYSIS IN AN AUTOMATIC SPEECH UNDERSTANDING AND DIALOG SYSTEM" pptx

... coach.l.2: "privat tutor, trainer in athletics" CLASS: ACtingPerson in in. l.l: " ;in the evening" CLASS: DURation SELECTION: TIMe in. l.2: " ;in the room" CLASS: PLAce ... 2: Semantic Interpretation of " ;in the coech" Although there are 4 possibilities for combining the words in their different meanings only one possibility ( in. l.2 I coach.l.l ) is semantic ... our institute a speech understanding and dialog system is developed. As an example we model an information system for timetables and other information about intercity trains. In understanding...

Tài liệu Báo cáo khoa học: "User Participation Prediction in Online Forums" potx

... mutual information between users afterdoing an average-link clustering on their pairwisemutual information. In a clean clustering, intra-cluster mutual information should be high, whileinter-cluster ... captureword relationship semantically. To illustrate thewords inside latent topics in the LDA model in- ferred from online forums, we show in Table 2 thetop words in 3 out of 20 latent topics inferred ... using the bag-of-word model sincethat would require the exact words to appear in thetraining set. In order to take advantage of the topic level in- formation while not losing the “ﬁne-grained”...

Tài liệu Báo cáo khoa học: "DANISH FIELD GRAMMAR IN TYPED PROLOG" pot

... may in turn be divided into subfields: INFFLD : nil; inffld( INFI, INF2 ) means that Danish has a possibility of two auxiliaries, (the finite + one infinite), and implicitly that if INF2 ... exist as such. Instead we have: FINIT = finit( VERB, VERB, TEMPG ) INFINIT = infinit( VERB, VERB, TEMPG ) VERB = Symbol which means that a verb, whether it be finite or infinite, is described ... adverbials modifying the verb; the inter- nal structure of the nexus field differs in main and subordinate clauses. The CF, for Content Field, contains two possible infinite verbforms, the objects...

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