Báo cáo khoa học: "Linguistically Motivated Large-Scale NLP with C&C and Boxer" ppt

... the ACL 2007 Demo and Poster Sessions, pages 33–36,Prague, June 2007.c2007 Association for Computational LinguisticsLinguistically Motivated Large-Scale NLP with C&C and BoxerJames R. ... language, together with advances in wide-coverage grammar development,have led to high levels of robustness and efﬁciencyin NLP systems and made linguistically motivated large-scale language ... DRS, and theirproperties in the conditions of a DRS.One deviation with the standard theory is theadoption of a Neo-Davidsonian analysis of events and roles. Boxer also implements Van der Sandt’stheory...

Báo cáo khoa học: "Linguistically Motivated Features for Enhanced Back-of-the-Book Indexing" ppt

... training and evaluation purposes, we used arandom split of the collection into 90% training and 10% test. This yields a training corpus of 259 docu-ments and a test data set of 30 documents.2.2 Candidate ... contributors, and follow the gen-eral guidelines of annotation provided by Wikipedia.The guidelines coincide with the goals of keywordextraction, and thus the Wikipedia articles and theirlink ... bymaking a binary yes/no classiﬁcation decision at the932level of each candidate index entry. Starting with aset of candidate entries, the algorithm automaticallydecides which entries should...

Báo cáo khoa học: "LINGUISTICALLY MOTIVATED DESCRIPTIVE TERM SELECTION" potx

... achieved with about 1OO general-purpose primitives like THING and WHERE for a vocabulary containing words like "transistor", "oscillator" and "circuit"; and with ... contents into knowledge bases. Indexing has its own proper function and hence utility, and can be successfully done without deep understanding of the texts being processed. Insofar as access to documents ... linguistically motivated approach to indexing, that is the provision of descriptive terms for texts of any kind, is presented and illustrated. The approach is designed to achieve good, i.e. accurate and...

Tài liệu Báo cáo khoa học: Roles of heat shock factors in gametogenesis and development pptx

... occurrence between E7.5 and birth [63].This would be compatible with aneuploidy and consis-tent with meiotic defects. HSF1 controls spindle for-mation and migration during oogenesis, and HSF2 hasbeen ... arelow and HSF2 display cytoplasmic and dendritic local-ization [125]. HSF2 expression and activity proﬁles areconsistent with a major role for HSF2 as a transcrip-tion regulator in forebrain and ... mitochondrialdysfunction, in conjunction with markedly increasedproduction of reactive oxygen species [27,34]. In line with ﬁndings in the heart and kidney [35,36], and together with the down-regulation of...

Tài liệu Báo cáo khoa học: "An Unsupervised Model for Joint Phrase Alignment and Extraction" ppt

... tuning and testing on speciﬁed development and test sets.We compare the accuracy of our proposed methodof joint phrase alignment and extraction using theFLAT, HIER and HLEN models, with a ... models, and for the LMwe use an interpolated Kneser-Ney 5-gram model.For GIZA ++, we use the standard training reg-imen up to Model 4, and combine alignments with grow-diag-final -and. For ... performs joint word alignment and phrase extraction, and found that joint estimation ofword alignments and extraction sets improves bothword alignment accuracy and translation results.In this...

Tài liệu Báo cáo khoa học: "Generative Power of CCGs with Generalized Type-Raised Categories" pptx

... Combinatory Categorial Grammars (CCGs) augmented with a linguistically -motivated form of type raising involving variables is weakly equivalent to the standard CCGs not involving variables. The proof ... Grammars and Tree Adjoining Grammars (Joshi, Vijay- Shanker, and Weir, 1991; Vijay-Shanker and Weir, 1994). But CCG-Std cannot handle the generalization of type raising that has been used in ... guistic phenomena including: coordination and extrac- tion (Steedman, 1985; Dowty, 1988; Steedman, 1996), prosody (Prevost and Steedman, 1993), and quantifier scope (Park, 1995). Intuitively,...

Báo cáo khoa học: "Computing Term Translation Probabilities with Generalized Latent Semantic Analysis" pptx

... representingdimensions of the document vectors with distri-butional term clusters (Bekkerman et al., 2003) and expanding the document and query vectors with synonyms and related terms as discussedin (Levow ... =w∈div∈djαdiwβdjv w, v, (3)where αdiw and βdjvrepresent the weight of theterms w and v with respect to the documents di and dj, respectively.In this case, the inner products ... 2001;Terra and Clarke, 2003) and was also success-fully used as a measure of term similarity to com-pute document clusters (Pantel and Lin, 2002). In152our preliminary experiments, the GLSA with...

Báo cáo khoa học: "Subjective Natural Language Problems: Motivations, Applications, Characterizations, and Implications" pptx

... affective NLP or affective interfac-ing (Liu et al, 2003; Holzman and Pottenger, 2003;Francisco and Gerv´as, 2006; Kalra and Karahalios,2005; G´en´ereux and Evans, 2006; Mihalcea and Liu,2006). ... non-traditionalintersubjectivity, variation in human behavior, and recognition of absence of real ‘ground truth’ may bequite useful to understand and appropriately modelproblems, methods, and evaluation techniques.5 ImplicationsThe ... associated with the set ofproblems dealt with in this paper (e.g. vari-ability vs. trends and language–culture–domaindependence vs. independence). For exam-ple, label-internal divergence and intraannota-tor...

Báo cáo khoa học: "A SNoW based Supertagger with Application to NP Chunking" ppt

... 02-14 and 21-24, and itis tuned with 44K words in WSJ section 19. We usethis supertagger to supertag section 15-18 and sec-tion 20. We train an NP Chunker on section 15-18 with fast TBL, and ... cope with much more ambiguities due thelarge size of the supertag set. The results are shownin Table 2.We test on both normalized and unnormalizedmodels with both hand coded supertag set and ... supertagger. SNoW-STAG2 = fast TBL with augmented supertags givenby our SNoW supertagger. GOLD-POS = fast TBL with gold standard POS tags. GOLD-STAG = fastTBL with gold standard supertags.of NP Chunking....

Báo cáo khoa học: "Adaptivity in Question Answering with User Modelling and a Dialogue Interface" pptx

... sentences) and produce the ﬁnal answer accordingly, e.g.:— System: Roald Dahl wrote many books for kids and adults,including: “The Witches”, “Charlie and the Chocolate Fac-tory”, and “James and the ... interest/bookmarks, w.Analogies can be found with the SeAn (Ardissonoet al., 2001) and SiteIF (Magnini and Strapparava,2001) news recommender systems where age and browsing history, respectively, are ... to construct and update a modelof the user’s interests, goals and level of under-standing. From a QA point of view, the main goalof the dialogue component is to provide users with a friendly...

Xem thêm