Báo cáo khoa học: "Unsupervised Relation Extraction by Mining Wikipedia Texts Using Information from the Web" pdf

... under consideration: relation extraction from Wikipedia. We use the en-cyclopedic nature of the corpus by speciﬁcally ex-amining the relation extraction between the enti-tled concept (ec) and ... informa-tion from the Web corpus, but from well written texts. Particularly, we speciﬁcally examine unsu-pervised relation extraction from existing texts of Wikipedia articles. Wikipedia resources ... pair by leveraging the vast size of the Web. Our hypothesis is that there exist some keyterms and patterns that provide clues to the rela-tions between pairs. From the snippets retrieved by the...

Tài liệu Báo cáo khoa học: "Unsupervised Relation Disambiguation Using Spectral Clustering" ppt

... and the functionof the head is the function of the wholechunk. “NP-SBJ” means a NP chunk as the subject of the sentence. The otherwords in a chunk that are not the head have“NOFUNC” as their ... clustering space. Then to ensure that the two centers are initialized in different clusters,one center is set as the point that is the farthest from the origin, while the other is set as the point thatsimultaneously ... beentagged relation types in the given corpus. Then the relation type tags were removed to test the unsuper-vised relation disambiguation. During the evalua-tion procedure, the relation type...

Báo cáo khoa học: "Unsupervised Relation Discovery with Sense Disambiguation" docx

... by the number of entity pairs they take. The column on the left shows sense of each relation. They are added manually by looking at the sense numbers associated with each path.for words on the ... although theyshare the same path “A’s company B”. The formerdescribes the sub-organization relationship betweentwo companies, while the latter describes B as the largest company in a location A. The ... pattern “A played by B”713takes the “music” sense.Document theme: Sometimes, the same patterncan express different relations in different docu-ments, depending on the document’s theme. Forinstance,...

Báo cáo khoa học: Visfatin is induced by peroxisome proliferator-activated receptor gamma in human macrophages pdf

... rate-limitingenzyme in the synthesis of NAD+ from nicotin-amide. Visfatin ⁄ PBEF ⁄ NAMPT is synthesized andsecreted in adipose tissue by adipocytes, and mostly by macrophages, and circulates in the plasma ... the absence or in the presence of the PPARc agonist GW1929 added at the start of the differentiation process [25]. As shown inFig. 4B, the expression of visfatin was signiﬁcantlydecreased by ... [33]. By bio-informatics analysis, we detected the presence of three DR1-like motifs that might serve asPPREs in the 2150-bp sequence upstream of the ATGcodon of the human visfatin gene [30]. Using...

Báo cáo khoa học: "CS NIPER Annotation-by-query for non-canonical constructions in large corpora" pdf

... andto drive the indexing of the corpora. In particular,DKPro Core includes a reader for the BNC and awriter for the CWB. As the BNC does not carrylemma annotations, we add them using the DKProTreeTagger ... ways from the unmarked lexico-grammatical patterning and informational orderingin the sentence. This is exempliﬁed by the con-structions of sentences (2) - (5) above. While ex-pressing the ... the query results match the expectation, the usercan switch to the assessment mode by clicking the 7 Begin assessment button. At this point, an An-notationCandidate record is created in the...

Tài liệu Báo cáo khoa học: Molecular and functional characterization of adenylate kinase 2 gene from Leishmania donovani pdf

... separated by electrophoresis on 0.7%agarose gels, and transferred to positively charged nylonmembranes by the method of Southern [22]. Southern blotswere probed with the 215-bp PCR product under the ... ﬁlters (Sigma) by alkaline transfer. The membrane was probed to the 690-bpprobe as described above.Heterologous expression The AK gene was ampliﬁed by PCR from L. donovanigenomic DNA. The sense ... predicted from the amino acid sequence of AK2 protein. The puriﬁcationand functional folding of L. donovani AK from the E. colicell lysates was carried out by washing and dissolving the inclusion...

Báo cáo khoa học: Phaiodotoxin, a novel structural class of insect-toxin isolated from the venom of the Mexican scorpion Anuroctonus phaiodactylus pdf

... another a liquot of toxin, but the ﬁnal resultswere identical. Still another sample was analyzed (from the cyanogen bromide cleavage) a lso c onﬁrming this unusualdisulﬁde pairing. From the other ... shown in the ﬁrst line (PhTx) and t wo additional groups of sequences are shown thereafter. The ﬁrst group(11 sequences) is from the a-ScTXs, t he second is from the b-ScTXs. Birtoxin is the sho ... according t o the instructions of the kit fr omAmbion (Austin, TX, USA). The cDNA mix was synthes-ized from poly(A)+ mRNA u sing M-MLV reverse tran-scriptase. The cDNA was joined with the a daptor...

Báo cáo khoa học: Production and characterization of a thermostable L-threonine dehydrogenase from the hyperthermophilic archaeon Pyrococcus furiosus docx

... increased by the addition of2mm CoCl2(relative activity to that of the standardreaction 170%) and not by the addition of 2 mmZnCl2or one of the other metals ⁄ salts tested. The enzyme ... is in fairagreement with the molecular mass (38 kDa) calcula-ted from the amino-acid sequence. The molecular massof the native Pf-TDH was estimated to be 156 kDa by size-exclusion chromatography, ... andglycine could not be oxidized by Pf-TDH. The substrate speciﬁcity of the reduction reactionwas analyzed by using aldehydes, ketones and aldosesas substrate. Unfortunately, the substrate 2-amino-3-oxobutyrate...

Báo cáo khoa học: Expression and characterization of recombinant 2¢,5¢-oligoadenylate synthetase from the marine sponge Geodia cydonium ppt

... protein of the SEC fractions plottedagainst the number of nucleotides per protein molecule from the corresponding fractions. Although the accu-racy of determining the absolute values of theseparameters ... been cloned from two sponges: one from Geodia cydonium and two from Suberites domuncu-la [27,28]. By contrast to the high sequence similarityamong vertebrate 2-5A synthetase proteins, the S. domuncula ... with each other [28]. More-over, the amino acid sequence deduced from the G. cydonium cDNA shares only 18% identity and 39%similarity with the mouse 2-5A synthetase [27]. Despite the low sequence...

Báo cáo khoa học: "Robust Dialog Management with N-best Hypotheses Using Dialog Examples and Agenda" pdf

... satisfaction of using the sys-tem by guiding for the repair of the wrong informa-tion by human-computer interaction. On the otherhand, there are different approaches to improve the robustness ... Finally, the system actions are predicted by the dialog example to maximize the examplescore in the best node. The generation of candidate nodes is basedon multiple hypotheses from the previous ... sometimes in the lower rank of the n-bestlist. Therefore, we need to select the hypothesisthat maximizes the scoring function among a set ofn-best hypotheses of each utterance. The role ofagenda...

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