Báo cáo khoa học: "Large Scale Collocation Data and Their Application to Japanese Word Processor Technology" potx

Tài liệu Báo cáo khoa học: "Logistic Online Learning Methods and Their Application to Incremental Dependency Parsing" doc

... computes an update to the weight vectorbased on the current example. The resulting weightvector tends to be overﬁt to the last few examples;one way to reduce overﬁtting is to use the averageof ... has to be taken to handle the large space of possible outputs. The in-tegration of the cost function into the logistic frame-work leads to two distinct (although related) updatemethods: the Scaled ... label, and 1 for an incorrect link.Since the history-based feature set used in theparsing algorithm makes it impossible to use inde-pendence to factorize the scoring function, an exactsearch to...

Tài liệu Báo cáo khoa học: "Large-Scale Syntactic Language Modeling with Treelets" docx

... w−2) to p(w|P, R, r, w−1) and then p(w|P, R, r). From there, we back off to p(w|P, R) where R is the sibling immediately to theright of P , then to a raw PCFG p(w|P ), and ﬁnally to a ... trained on the WSJ and Brown corporabecause it does not scale to large amounts of data. We used the Berkeley LM toolkit (Pauls and Klein, 2011), which implements Kneser-Neysmoothing, to estimate all ... recognition and machine translationsystems, and a great deal of research centers aroundreﬁning models (Chen and Goodman, 1998), ef-ﬁcient storage (Pauls and Klein, 2011; Heaﬁeld,2011), and integration...

Báo cáo khoa học: "Large-Scale Cross-Document Coreference Using Distributed Inference and Hierarchical Models " pptx

... entity es to entity et. Theset of factors to compute acceptance of the ﬁrst pro-posal are factors between l and mentions in es and et, while the set of factors required to compute ac-ceptance ... inference (Gooi and Allan, 2004). Pedersen etal. (2006) and Purandare and Pedersen (2004) inte-grate second-order co-occurrence of words into thesimilarity function. Mann and Yarowsky (2003) ... Spring Symposium on Learning by Reading and Learning to Read.Andrew McCallum and Ben Wellner. 2004. Conditionalmodels of identity uncertainty with application to nouncoreference. In Neural Information...

Tài liệu Báo cáo khoa học: Plant a-amylase inhibitors and their interaction with insect a-amylases ppt

... strands and a characteristic disul®de to pology.It revealed structural similarity to other proteins such a s theproteinase inhibitor from Cucubirta maxima [80], charybdo-toxin and conotoxins ... inds ofa-amylase and proteinase inhibitors, present in seeds and vegetative organs, act to regulate numbers of phytophagousinsects [ 9±11]. a-Amylase inhibitors are a ttractive candidatesfor the ... M., Iwamoto, M., Shibata, R.,Sato,M.&Imaizumi,K.(2000)CM-3,oneofthewheata-amylase inhibitor subunits, and bindin g of IgE in sera from Japanese with atopic dermatitis r elated to wheat....

Báo cáo khoa học: MicroRNA-143 reduces viability and increases sensitivity to 5-ﬂuorouracil in HCT116 human colorectal cancer cells potx

... clinic forseveral decades, and its metabolic pathways and cyto-toxic modes of action through the inhibition of thymi-dylate synthase activity and incorporation into RNA and DNA are well known. ... over-come tumour cell resistance to chemotherapy and to increase drug efﬁcacy, thereby minimizing toxic effects,are critically important. The molecular mechanisms of5-FU cytotoxicity have been characterized, ... have been characterized, especiallyits ability to incorporate into RNA and DNA and to inhibit thymidylate synthase. 5-FU has recently beenshown to modulate miRNA expression in colon cancercells...

Báo cáo khoa học: Thermodynamic characterization of substrate and inhibitor binding to Trypanosoma brucei 6-phosphogluconate dehydrogenase pot

... required to donate a proton to the C3 car-bonyl group of the keto-intermediate to facilitatedecarboxylation. Both a base and an acid are neededin the tautomerization of the enediol intermediate to yield ... per se. To better understand why these analogues have highafﬁnity and to help in rational drug design, we under-took a thermodynamic characterization of substrate and analogue binding to T. brucei ... EDTA and 1 mM 2-mercaptoethanol. The syringecontained 0.43 mM aPyADP in the same buffer. A total of 25 injec-tions was made at 380 s intervals. Top panel: raw ITC data. Bottompanel: data...

Tài liệu Báo cáo khoa học: "Collecting Highly Parallel Data for Paraphrase Evaluation" doc

... are incentivized to cheat in order to maximize their rewards. To encourage native and ﬂuent contributions, weasked annotators to write the descriptions in the lan-guage of their choice. The ... large corpora and no consistentstandards for what constitutes a high-quality para-phrase. In addition to the lack of standard datasetsfor training and testing, there are also no standardmetrics ... lack of standarddatasets and automatic evaluation metrics has im-peded progress in the ﬁeld. Without these resources,researchers have resorted to developing their ownsmall, ad hoc datasets...

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

... a givenhead-argument pair (we consider the words h and a to be indexed, and so features can be sensitive to their order and distance, as is also standard).2.1 Afﬁnity FeaturesAfﬁnity statistics, ... whichcontains English n-grams (n = 1 to 5) and their ob-served frequency counts, generated from nearly 1trillion word tokens and 95 billion sentences. Thiscorpus allows us to efﬁciently access huge amountsof ... cluster-based word- senses as intermediate abstractions inaddition to POS tags (also see Finkel et al. (2008)). Their work also gives a way to tap into corpora be-yond the training data, through...

Tài liệu Báo cáo khoa học: "Learning with Unlabeled Data for Text Categorization Using Bootstrapping and Feature Projection Techniques" doc

... co-occurred with the title words and keywords: ‘driver’, ‘clutch’, ‘trunk’, and so on. They are words in first-order co-occurrence with the title words and the keywords. To gather more vocabulary, ... we need to find words that are semantically related to a title word, and we define them as keywords of each category. The score of semantic similarity between a title word, T, and a word, ... with robustness from noisy data (Ko and Seo, 2004). How can labeled training data be automatically created from unlabeled data and title words? Maybe unlabeled data don’t have any information...

Tài liệu Báo cáo khoa học: "Large linguistically-processed Web corpora for multiple languages" doc

... it. The German function word list con-tains 124 terms. We require that a minimum of 10types and 30 tokens appear in a page, with a ra-tio of function words to total words of at least onequarter. ... languageidentiﬁer.8Finally, we use a stop list of words likely to oc-cur in pornographic Web pages, not out of prudery,but because they tend to contain randomly gener-ated text, long keyword lists and other linguisti-cally ... tokenize, lemmatise and part-of-speech tag the corpus, and load the data into a corpus query tool which sup-ports sophisticated linguistic queries. Wehave now done this for German and Ital-ian,...

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