Tài liệu Báo cáo khoa học: "Kinds of Features for Chinese Opinionated Information Retrieval" pdf

... of features for retrieval of Chinese opinionated information. As stated earlier (see Section 1), we assume thatthe task of retrieval of opinionated texts (OIR) canbe regarded as a subtask of ... thefound set of features for text classification (index-ing) for an OIR query of the first level (finds opin-ionated information) and for an OIR query of thesecond level (finds opinionated information ... Proceedings of the ACL 2007 Student Research Workshop, pages 37–42,Prague, June 2007.c2007 Association for Computational LinguisticsKinds of Features for Chinese Opinionated Information RetrievalTaras...

Tài liệu Báo cáo khoa học: "REPRESENTATION OF TEXTS FOR INFORMATION RETRIEVAL" pdf

... OF TEXTS FOR INFORMATION RETRIEVAL N.J. Belkin, B.G. Michell, and D.G. Kuehner University of Western Ontario The representation of whole texts is a major concern of the field known as information ... occurrence analysis of text [i] (figure I). POSITION RANK (r) Adjacent 1 Same Sentence 2 Adjacent Sentences 3 FOR EACH CO-OCCURRENCE OF EACH WORD PAIR (Wl,W 2) 1 SCORE = 1 + r X i00 FOR ALL CO-OCCURRENCES ... documents stored by the system, and a set of 'problem statements' represent- ing users' information needs their anomalous states of knowledge when they approach the system....

Tài liệu Báo cáo khoa học: "Web-Scale Features for Full-Scale Parsing" doc

... non-localsyntactic features used in Huang (2008). Our web-scale features reduce errors for a range of attachmenttypes. Finally, we present an analysis of inﬂuential features. We not only reproduce features ... linear in the size of then-gram corpus, but essentially constant in the num-ber of queries. Of course, if the number of queries isexpected to be small, such as for a one-off parse of a single sentence, ... IN head, of no NNS IN plans, for public NN IN appearance, atfrom NNS IN sales, of net NN IN revenue, of , NNS IN names, of you NN IN leave, inhave NN IN time, for some NN IN money, for annual...

Tài liệu Báo cáo khoa học: "Mining Wiki Resources for Multilingual Named Entity Recognition" pdf

... were key pieces of information used to differentiate between various meanings of an ambiguous surface form. Unlike in this paper, Cucerzan did not make use of the Category infor-mation to ... article, if available, for additional information. • A second pass checks for multi-word phrases that exist as titles of Wikipedia articles. • We look for certain types of person and organization ... a wikilink of the form [[Washing-ton|District of Columbia]]. We would then make the assumption that for all articles, District of Co-lumbia is of the same type as Washington. For less developed...

Tài liệu Báo cáo khoa học: "Unsupervised Translation Induction for Chinese Abbreviations using Monolingual Corpora" ppt

... or via truncation, the for- mation of Chinese abbreviations is much more com-plex. Figure 1 shows two examples for Chinese ab-breviations. Clearly, an abbreviated form of a wordcan be obtained ... Performance4.5.1 Precision on Translations of Chinese Full-form Phrases For the relations manually tagged as correct inSection 4.4, we manually look at the top-5 transla-tions for the full-form ... co-occurrence). For example,Bill Gates tends to appear together with Microsoft.The co-occurrence may imply a relationship (e.g.,Bill Gates is the founder of Microsoft). By inspec-tion of the Chinese...

Tài liệu Báo cáo khoa học: Motion of the Ca2+ -pump captured ppt

... characteristics of the Albers–Post schemeThe number of peaks (i.e. the number of up–downconformational changes of SERCA) per unit time wasdependent on the ATP concentration (Fig. 1B,C). Thenumber of peaks ... shorter conforma-tion ﬁ ATP hydrolysis-mediated elevated conforma-tions ﬁ Ca2+-binding shorter conformation), andthe number of peaks must correspond to the velocity of the catalytic cycle of SERCA. ... Histograms of the height differences between the top of SERCA and the surface of the membrane. Statistical section analy-ses of SERCA were performed with the data obtained in the pres-ence of (A)...

Tài liệu Báo cáo khoa học: Role of Kupffer cells in pathogenesis of sepsis-induced drug metabolizing dysfunction pptx

... comprised: 94 °C for 30 s, 55 °C for 30 s,72 °C for 60 s, 30 cycles for CD163; 94 ° C for 30 s, 57 °C for 30 s, 72 °C for 60 s, 30 cycles for CYP1A1; 94 °C for KCs in drug-metabolizing dysfunction ... experimental groups For depletion of KCs in vivo, 7.5 mgÆkg)1 of GdCl3wasinjected via the tail vein at 48 and 24 h before the perfor-mance of CLP or sham operation, based on the ﬁndings of other investigators ... the inhibition of CYP activity observed in theabsence of changes in protein expression in rabbit he-patocytes [22]. ROS indirectly reduced the activity of selected isoforms of CYP by inducing...

Tài liệu Báo cáo khoa học: Mechanisms of amyloid ﬁbril formation – focus on domain-swapping doc

... solvent. There-fore, the solvation of backbone atoms is much larger for a conformers than for b conformers. Interactionwith solvent thus compensates for the destabilization of the a conformation ... unfold-ing of the a-helix from the body of the b-sheet(Fig. 2C).Possible role of domain-swapping in the ‘off-pathwayfolding’ (OFF) modelThe OFF model for amyloid formation was ﬁrstdescribed by Pallitto ... parts of the protein molecule (e.g. either pro-tonation of a number of side chains, binding of metalsto an unfolded state or mutations at speciﬁc sites) arekey to amyloid formation. One of the...

Tài liệu Báo cáo khoa học: Modulation of a-synuclein aggregation by dopamine in the presence of MPTP and its metabolite pptx

... concentrations of MPP+, the rate of nucle-ation (formation of toxic protoﬁbrils) is delayed butonce the nucleus is formed, the rate of ﬁbrillation isaccelerated. At a higher concentration of the ... the conversion of MPTP toMPP+is not required for aggregation of a-synuclein. MPP+was found toaccelerate the rate of a-synuclein aggregation even in the absence of com-ponents of mitochondrial ... Admin-istration of MPTP has also been shown to formaggregates of a-synuclein in nigral neurons of baboons(Papio anubis) [11]. Depletion of a-synuclein was maxi-mum in the middle third region of substantia...

Tài liệu Báo cáo khoa học: Modulation of F0F1-ATP synthase activity by cyclophilin D regulates matrix adenine nucleotide levels pptx

... innermitochondrial membrane for the development of pro-tonmotive force. It is therefore not surprising that aloss of mitochondrial membrane integrity is energeti-cally deleterious for cells. For reasons that ... afforded by the more thantwo-fold larger FCC of ANT (0.63 for WT, 0.66 for CYPD KO) than that of the F0F1-ATP synthase (0.29 for WT, 0.3 for CYPD KO) for adenine nucleotideﬂux rates. This is ... pore (PTP) [1,2], is of asufﬁcient size (cut-off of $ 1.5 kDa) to allow the pas-sage of solutes and water, which may also result inrupture of the outer membrane. The identity of theproteins comprising...

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