Báo cáo khoa học: "Bootstrapping Named Entity Recognition with Automatically Generated Gazetteer Lists" doc

Báo cáo khoa học: "Bootstrapping Named Entity Recognition with Automatically Generated Gazetteer Lists" doc

Báo cáo khoa học: "Bootstrapping Named Entity Recognition with Automatically Generated Gazetteer Lists" doc

... Bootstrapping Named Entity Recognition with Automatically Generated Gazetteer Lists Zornitsa Kozareva Dept. de Lenguajes y Sistemas Inform ´ aticos University ... evaluation for the Named Entity detection and classification tasks with and without labeled data are in Sections 4 and 5. We conclude in Section 6. 2 The NER how to A Named Entity Recognition task ... valida...
Ngày tải lên : 24/03/2014, 03:20
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Báo cáo khoa học: "Japanese Named Entity Recognition based on a Simple Rule Generator and Decision Tree Learning" pdf

Báo cáo khoa học: "Japanese Named Entity Recognition based on a Simple Rule Generator and Decision Tree Learning" pdf

... more efficiently with a large set of training data and that it improves readability. 1 Introduction Named entity (NE) recognition is a task in which proper nouns and numerical informa- tion in a document ... rele- vant documents but do not directly answer your question. NE recognition is essential for finding possible answers from documents. Although it is easy to build an NE recogni...
Ngày tải lên : 08/03/2014, 05:20
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Báo cáo khoa học: "Multilingual Named Entity Recognition using Parallel Data and Metadata from Wikipedia" potx

Báo cáo khoa học: "Multilingual Named Entity Recognition using Parallel Data and Metadata from Wikipedia" potx

... pairs with source and target named entities as well as word-alignment links among named entities in the two languages. Figure 1 illustrates a Bulgarian- English sentence pair with alignment. The named ... multi-lingual data with named entity tags. We build on prior work utiliz- ing Wikipedia metadata and show how to ef- fectively combine the weak annotations stem- ming from Wi...
Ngày tải lên : 23/03/2014, 14:20
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Báo cáo khoa học: "Arabic Named Entity Recognition: Using Features Extracted from Noisy Data" doc

Báo cáo khoa học: "Arabic Named Entity Recognition: Using Features Extracted from Noisy Data" doc

... izitouni@us.ibm.com, prosso@dsic.upv.es Abstract Building an accurate Named Entity Recognition (NER) system for languages with complex morphology is a challeng- ing task. In this paper, we present ... 281–285, Uppsala, Sweden, 11-16 July 2010. c 2010 Association for Computational Linguistics Arabic Named Entity Recognition: Using Features Extracted from Noisy Data Yassine Benaj...
Ngày tải lên : 23/03/2014, 16:20
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Báo cáo khoa học: "Exploiting Named Entity Taggers in a Second Language" ppt

Báo cáo khoa học: "Exploiting Named Entity Taggers in a Second Language" ppt

... determining boundaries of named entities, we called this process Named Entity Delimitation (NED). Once we have determined which words belong to named entities, we then get to the task of classifying the named en- tities ... what we called Named Entity Classification (NEC). We explain the two procedures in the following subsections. 4.1 Named Entity Delimitation We used the BI...
Ngày tải lên : 17/03/2014, 06:20
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Báo cáo khoa học: "Espresso: Leveraging Generic Patterns for Automatically Harvesting Semantic Relations" docx

Báo cáo khoa học: "Espresso: Leveraging Generic Patterns for Automatically Harvesting Semantic Relations" docx

... auto- matically harvesting shallow semantic resources. With seemingly endless amounts of textual data at our disposal, we have a tremendous opportu- nity to automatically grow semantic term banks and ... in a correct instance in- creases when, i) the instance is associated with many reliable patterns; and ii) its association with the reliable patterns is high. At a given Es- presso...
Ngày tải lên : 08/03/2014, 02:21
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Báo cáo khoa học: "Robust PCFG-Based Generation using Automatically Acquired LFG Approximations" doc

Báo cáo khoa học: "Robust PCFG-Based Generation using Automatically Acquired LFG Approximations" doc

... 1997). tegrated architecture, first the treebank trees are automatically annotated with f-structure informa- tion, f-structure annotated PCFGs with rules of the form NP(↑OBJ=↓)→DT(↑=↓) NN(↑=↓) are extracted, ... associated with this item is the probability of the rule multi- plied by the probability of the previous chart item which combines with the new rule). When a rule is added to...
Ngày tải lên : 23/03/2014, 18:20
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Báo cáo khoa học: "Approximating Context-Free Grammars with a Finite-State Calculus" docx

Báo cáo khoa học: "Approximating Context-Free Grammars with a Finite-State Calculus" docx

... z), i.e. strings that start with beginning to parse an S and end with having parsed an S. From this initial approximation we sub- tract (that is, we intersect with the complement of) a series ... grammar is concerned with what is possible before the first accepting state is encountered. 7 Comparison with previous work Rimon and Herz (1991; 1991) approximate the recognition c...
Ngày tải lên : 31/03/2014, 21:20
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Tài liệu Báo cáo khoa học: Helix mobility and recognition function of the rat thyroid transcription factor 1 homeodomain – hints from 15N-NMR relaxation studies pdf

Tài liệu Báo cáo khoa học: Helix mobility and recognition function of the rat thyroid transcription factor 1 homeodomain – hints from 15N-NMR relaxation studies pdf

... helix III further stress its stabil- ity. Within this first stretch of the recognition helix, Gln50 has a pivotal function. High values of J(0) and J(x N ) with a corresponding very low J(0.87x H ) ... break of the recognition helix. This picture, first inferred for the TTF-1 HD from structural determina- tion [4], proved consistent with the opposite stabiliza- tion pattern observed wit...
Ngày tải lên : 18/02/2014, 16:20
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Tài liệu Báo cáo khoa học: Structural bases for recognition of Anp32⁄LANP proteins doc

Tài liệu Báo cáo khoa học: Structural bases for recognition of Anp32⁄LANP proteins doc

... solution, together with a comparison with the struc- ture of the spliceosomal U2A¢ in complex with U2B¢¢ [20], suggests new insights into the mechanism of Anp32 LRR–protein recognition. By a combination ... (b 7 ) with the strand 143– 145 (b 6 ). This region shares a remarkable similarity with U2A¢, the two protein with the highest structural homology: the two proteins can be sup...
Ngày tải lên : 18/02/2014, 17:20
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