Báo cáo khoa học: "A LAYERED APPROACH TO NLP-BASED RETRIEVAL" potx

Tài liệu Báo cáo khoa học: "A Bootstrapping Approach to Named Entity Classification Using Successive Learners" pdf

... seeds are retrieved from the repository to train a decision list for NE classification. 3. The learned rules are applied to the NE candidates stored in the repository. 4. The proper names tagged ... 86.7% To benchmark the quality of the automatically constructed corpus (Table 2), the testing corpus is first processed by our parser and then saved into the repository. The repository level ... paper presents a new bootstrapping approach to named entity (NE) classification. This approach only requires a few common noun/pronoun seeds that correspond to the concept for the target NE...

Tài liệu Báo cáo khoa học: "A PRAGMATICBASED APPROACH TO UNDERSTANDING" pdf

... such ques- tions implicitly by proceding to answer the question or to seek information relevant to formulat- ing an answer. However IS may refuse to accept the question posed by IP because ... pushed onto the discourse stack. [SP2]When IS poses a question to IP, Expand- Question is pushed onto the discourse stack. Once IP begins answering the question, the stack is popped up to and ... goal rule DG-Obtaln-Info to determine if the elliptical fragment is being used to accomplish the discourse goal of seeking information in order to construct an answer to the posed question....

Tài liệu Báo cáo khoa học: "A HYBRID APPROACH TO REPRESENTATION IN THE JANUS NATURAL LANGUAGE PROCESSOR" pot

... SThe ruJels may need to be used tecureively to get to a constanL aEvery expression in WML has a type. 4.1.¢ Knowledge Acquisition We have developed two complementary tools to greatly increase ... has a role from A to B (or from B to A) can be referred to by a definite NP. This has not yet been integrated into the Janus model of reference processing [4]. 4.3.2. Metonymy Unstated relations ... class associated with A to the class associated with B. If no such role exists, the search is for a role relating the nearest ancestor of the class of A to any ancestor of the class of B. The...

Tài liệu Báo cáo khoa học: "A PROBABILISTIC APPROACH TO GRAMMATICAL ANALYSIS OF WRITTEN ENGLISH BY COMPUTER" pot

... subsequent modification to the system resulted in over 96 per cent of word tags being correctly assigned automatically. The remaining 3 to ~ per cent were corrected by human post-editors. ~brk is ... programs was devised to automatically produce a single level of grammatical description with one word tag representing the word class or part of speech of each word token in the corpus. Error ... post-editors. ~brk is now in progress to devise a suite of programs to provide a constituent analysis of the sentences in the corpus. So far, sample sentences have been automatically assigned phrase...

Báo cáo khoa học: A kinetic approach to the dependence of dissimilatory metal reduction by Shewanella oneidensis MR-1 on the outer membrane cytochromes c OmcA and OmcB potx

... these cytochromes have been proposed to be ter-minal Fe(III) and Mn(IV) reductases, although their role in the reductionof other metals is less well understood. To obtain more insight into this,we ... Journal compilation ª 2007 FEBSA kinetic approach to the dependence of dissimilatorymetal reduction by Shewanella oneidensis MR-1 on theouter membrane cytochromes c OmcA and OmcBJimmy Borloo*, ... omcA–omcB–MR-1R mutantsrelative to their MR-1R parent To study the substrate speciﬁcities of the outermembrane decaheme cytochromes OmcA and OmcBin the process of dissimilatory metal reduction, omcA–,omcB–and...

Báo cáo khoa học: "A new Approach to Improving Multilingual Summarization using a Genetic Algorithm" pptx

... op-eration.3http://www.extractor.com/928Today, graph-based text representations are be-coming increasingly popular, due to their abil-ity to enrich the document model with syntacticand semantic relations. Salton ... weighted average of two “parent” vectorsaccording to (Vignaux and Michalewicz, 1991).Formally, a new vector v will be created fromtwo vectors v1and v2according to the formulav = λ ∗ v1+ (1 ... 1997;Satoshi et al., 2001) and length-based (Satoshi etal., 2001).Considered the ﬁrst work on sentence scoringfor automated text summarization, Luhn (1958)based the signiﬁcance factor of...

Báo cáo y học: " A Practical Approach to Managing Patients with HCV Infection"

... symptoms are Int. J. Med. Sci. 2006, 3 64reported to affect the quality of life which in turn can be improved after treatment [13,14]. Symptoms in HCV infection do not appear to be linked to ... routine laboratory studies should be obtained as well to monitor for signs of adverse effects due to the drugs. Repeat HVC viral load should be repeated at week 12 of treatment to document EVR. ... document EVR. The decision to continue treatment after week 12 would then be determined based on individual response to treatment (EVR), tolerance to the drugs, laboratory profiles, and the pre-treatment...

Báo cáo y học: "A Practical Approach to Management of Chronic Hepatitis B"

... sensitive to LAM treatment [16]. 4. Indications of HBV Treatment Historically, levels of HBV DNA and ALT, and histological activity of liver biopsy have been used as the three main factors to determine ... practical clinical approach to managing CHB. Highly sensitive PCR-based quantitation of HBV DNA makes it possible to precisely determine pre-treatment HBV load and monitor HBV DNA response ... Levels It is known that HBV is not directly pathogenic to hepatocytes and host immune response to HBV antigens expressed on the infected hepatocytes is the principle determinants of the liver injury....

Tài liệu Báo cáo khoa học: "A Composite Kernel to Extract Relations between Entities with both Flat and Structured Features" ppt

... computationally infeasi-ble to directly use the feature vector()Tφ. To solve this computational issue, Collins and Duffy (2001) proposed the following parse tree kernel to calculate the dot product ... by layer in a top-down manner. Culotta and Sorensen (2004) gen-eralized it to estimate similarity between depend-ency trees. Their tree kernels require the match-able nodes to be at the same ... jth child of node n andλ(0<λ<1) is the de-cay factor in order to make the kernel value less variable with respect to the subtree sizes. In ad-dition, the recursive rule (3) holds...

Tài liệu Báo cáo khoa học: "A Practical Solution to the Problem of Automatic Word Sense Induction" doc

... vectors) their algorithm al-lows a word to belong to more than one cluster, each cluster a word is assigned to can be consid-ered as one of its senses. A problem that we see with this approach ... clustering of global co-occurrence vectors. To see this, let us bring our attention to the various species of ani-mals that are among the top 30 associations to poach. Some of them seem more often ... algo-rithm was able to separate the different kinds of animals according to their relationship to poach. If we instead clustered global vectors, it would most likely be impossible to obtain this...

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