our question answering system architecture
Báo cáo khoa học: "Learning Surface Text Patterns for a Question Answering System" doc
... Determine the question type of the new question We use our existing QA system (Hovy et al., 2002b; 2001) to so The question term in the question is identified, also using our existing system 3 Create ... “ situated in ”, where and represent the terms “Long Beach” and “county” respectively The performance of the system ... the TREC corpus was used as the input source and IR was performed by the IR component of our QA system (Lin, 2002) In the second case, the web was the input source and the IR was performed by the...
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Báo cáo khoa học: "Question Answering System in the Web using the Web" doc
... Priberam’s system for Portuguese got the best results among all the systems) System CLEF 2004 CLEF 2005 Figure Modules and data flow Esfinge Esfinge (current version) Best system for Portuguese Best system ... obtained by the current version of the system with the CLEF questions in 2004 and 2005, as well as the results of the best system (U Amsterdam) and the best system for Portuguese (University of ... 200 questions prepared by the organization and a document collection The systems are then supposed to return the answers to each question, indicating We tried to investigate whether CLEF questions...
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Báo cáo khoa học: " A Cooperative Question-Answering System on the WEB" pdf
... typology of natural language questions that WEBCOOP takes in and then specify the knowledge extraction procedures from web pages 64 Question classification and processing In our system, we offer two ... natural language One of our first tasks is then to elaborate a generic classification of the different types of questions Our taxonomy is inspired from (Lehnert, 78) (QUALM system) and (Graesser ... taxonomies dedicated to open domain question answering, for example within the TREC-8 and the TREC-9 programs (Hovy et al, 00) which are mainly based on question templates Our taxonomy has been constructed...
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Báo cáo hóa học: " Research Article Question Processing and Clustering in INDOC: A Biomedical Question Answering System" ppt
... implementation of a biomedical question answering system We devised methods for query processing, document indexing and procedures for extracting the answer to the questions posed The system was evaluated ... queries as the questions for INDOC Five queries were left out as our subset of documents did not contain an answer for them 3.2 Performance evaluation and results To evaluate our system, we compare ... centers, so that first one-fourth documents in the ranked list go into the first cluster, the next one-fourth in the second, and so on 6 EURASIP Journal on Bioinformatics and Systems Biology The cluster...
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A Community Based Vietnamese Question Answering System
... VnCQAs system architecture (as displayed in Figure 1) and briefly describe all modules in the system When a new question is presented to the system, our system finds the most similar questions ... (%) Our approach 71.19 (%) Conclusion In this paper, we proposed the community-based question answering system for Vietnamese Our system consists of three modules: database construction, question ... Community-Based Vietnamese Question Answering System 127 References [1] Son, D.T., Dung, D.T.: Apply a mapping question approach in building the question answering system for vietnamese language...
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Question Analysis for a Community Based Vietnamese Question Answering System
... shown in section The VnCQAs System Architecture The architecture of our question answering system [17] is shown in Figure It includes three modules: Database Construction, Question Analysis and Answer ... meaning to the original questions We use 1704 original questions as the input questions for testing our system performance, if the returned question is one of paraphrased questions, we evaluate ... 3.1 Question Types We classify questions into three types: Fact, Explanation and Solution according to the main purpose of the questioner Question Analysis for a VnCQAs 643 Fig The system architecture...
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Tài liệu System Architecture Design in Enterprise docx
... » ? 176? SW Implementation in Enterprise Transaction System ? Networking System ? Planning and Analyzing System ? Collaboration System ? 15 Systems Stack Enterprise IT Structure Real-Time Performance ... is squeezed out of the system HW; maximizing efficiency may make the SW more difficult to change Efficiency means that a system should not make wasteful use of system resources such as memory ... background of the system users Waterfall Model of SW Development Requirements analysis and definition ? System and SW design ? Implementation and unit testing ? Integration and system testing ?...
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Tài liệu Báo cáo khoa học: "A Graph-based Semi-Supervised Learning for Question-Answering" doc
... prior to our textual entailment analysis Question- Type Classifier (QC): QC is the task of identifying the type of a given question among a predefined set of question types The type of a question ... extraction produced by our QA system characterizes features for our TE model based on analysis of q/a pairs Here we give brief descriptions of only the major modules of our QA due to space limitations ... features to match components of questions like ”Who purchased Merrill Lynch?” Sentence Structure Analysis: In our question analysis, we observed that 98% of affirmed questions did not contain any...
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Tài liệu Báo cáo khoa học: "You’ve Got Answers: Towards Personalized Models for Predicting Success in Community Question Answering" doc
... Features: Traditional question answering features such as the wh-type of the question (e.g., “what” or “where”), and whether the question is similar to other questions in the category • Question- Answer ... question ”was” in question ”live” in answer Q avg pos votes ”would” in answer ”answer” in question ”just” in answer ”me” in answer ”be” in answer ”in the” in question CA History ”who is” in question ... enters the question and, optionally, additional details After a short delay the question appears in the respective category list of open questions At this point, other users can answer the question, ...
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Tài liệu Báo cáo khoa học: "The QuALiM Question Answering Demo: Supplementing Answers with Paragraphs drawn from Wikipedia" ppt
... seen Additionally, during question analysis, certain question constituents are marked as either Topic or Focus (see Moldovan et al., (1999)) For the earlier example question “Tom Cruise” becomes ... query asked The demo usually sends out between one and four queries per question, thus getting results from Google alone takes between one and four seconds All received results need to be post-processed, ... Figure 1: Screenshot of QuALiM’s response to the question “How many Munros are there in Scotland?” The green bar to the left indicates that the system is confident to have found the right answer,...
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Tài liệu Báo cáo khoa học: "Opinion and Generic Question Answering Systems: a Performance Analysis" ppt
... (“rigid list”) and opinion questions (“squishy list”), to which the traditional systems had to be adapted The Alyssa system (Shen et al., 2007), classified the polarity of the question and of the extracted ... satisfactorily answered by the opinion QA system (2, 5, 6, 7, 11, 12) Questions 18 and 20 were not correctly answered by any of the two systems We believe the reason is that question 18 was ambiguous as far ... corpora and subsequently we employed two QA systems, one open domain, one for opinion questions Our main objective was to compare the performances of these two systems and analyze their errors, proposing...
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Tài liệu Báo cáo khoa học: "Answer Extraction, Semantic Clustering, and Extractive Summarization for Clinical Question Answering" pdf
... the evidence Our cluster-based system is able to support both types of behaviors This work demonstrates the value of semantic resources in the question answering process, since our approach makes ... press Answering clinical questions with knowledge-based and statistical techniques Comp Ling Conclusion The primary contribution of this work is the development of a clinical question answering system ... and J Conley 1996 Answering clinical questions The Journal of Family Practice, 43:140– 144 Y Niu and G Hirst 2004 Analysis of semantic classes in medical text for question answering In ACL 2004...
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Tài liệu Báo cáo khoa học: "Organizing Encyclopedic Knowledge based on the Web and its Application to Question Answering" ppt
... and question answering, among which we focus solely on question answering (QA) in this paper A straightforward application is to answer interrogative questions like “What is X?” in which a QA system ... To sum up, given a question, its type and four choices, our QA system chooses one of four candidates as the answer, in which the resolution algorithm varies depending on the question type 4.4 ... our comparative experiment, in which “C” and “A” denote coverage and accuracy, respectively, for variations of our QA system Since all the questions we used are quadruplechoice, in case the system...
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Tài liệu PCI EXPRESS SYSTEM ARCHITECTURE pdf
... Various Buses 15 PCI Express System Architecture I/O Bus Architecture Perspective 33 MHz PCI Bus Based System Figure 1-2 on page 17 is a 33 MHz PCI bus based system The PCI system consists of a Host ... 945 VC Resource Registers 946 General 946 VC Resource Capability Register 946 VC Resource Control Register 948 VC Resource Status Register ... MHz PCI System 31 Latest Generation of Intel PCI Chipsets 32 66 MHz PCI Bus Based System 33 Limitations of 66 MHz PCI bus 34 Limitations of PCI Architecture...
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Tài liệu Báo cáo khoa học: "Paraphrasing Using Given and New Information in a Question-Answer System" docx
... "Generattnq Enqllsh Discourse from Semantic Networks", Univ of Texas at Austtnw C ~ r Vol 5, #10, October 1972 19 ~ L T Z 78] Waltz, D.L., "An ~,gllsh Langu~e Question Answering System for a Large ... computing facility.* In question (D), information belonging to each of the three categories occurred in the question If one of these types of information is missing, the question will be presented ... the stripped down question The clauses ~hlch define the particular aspect frora which the question is asked are found by searching the left and right subtrees for the wh-ltem or questioned noun...
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Tài liệu Báo cáo khoa học: "A Terminological Simplification Transformation for Natural Language Question-Answering Systems" doc
... i t y A n o t h e r a d v a n t a g e is t h a t t h e y e n a b l e u s to treat database question- answering model-theoretically The s e t - t h e o r e t i c s t r u c t u r e of t h e m o ... relationships b e t w e e n them, w e call the " d o m a i n model" Knowledge Representation and Question- Answering The p u r p o s e of t h i s s e c t i o n of t h e p a p e r is t o p r e s e n ... NIKL system' s creating a n e w concept or role, a n d creation of a n a m e in the symbol table to stand for it, furnishes us with a n e w non-logical constant The knowledge representation system...
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Tài liệu Báo cáo khoa học: "Question Answering by Lexical Fabric and External Resources" ppt
... resources for TREC-style question answering In particular, we describe a high performance question answering system called QUALIFIER (QUestion Answer- ing by Lexical Fabric and External Resources) ... call our approach Eventbased QA System Architecture Our system, named QUALIFIER, adopts the by now more or less standard QA system architecture as shown in Figure It includes modules to perform question ... using the TREC-11 benchmark Our results show that combining lexical information and external resources with a custom text search produces an effective question- answering system The rest of the paper...
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Báo cáo khoa học: "Sentence Dependency Tagging in Online Question Answering Forums" pdf
... Example of a Question Answering Thread in Ubuntu Support Forum exists as a result of another sentence For example, question context sentences exist because of the question itself; an answering sentence ... such as forums This knowledge source could substantially help automatic question answering systems There has been some previous work focusing on the extraction of question and corresponding answer ... as the source? Do target and source belong to the same author? Cosine similarity between target and source sentence Does target sentence happen before source? Post distance between source and...
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Báo cáo khoa học: "Question Answering with Lexical Chains Propagating Verb Arguments" pptx
... performance of the question answering system was measured using Mean Reciprocal Rank (MRR) Table 7: The impact of the algorithm for propagating predicate arguments over the question answering system Number ... factoid questions in TREC 2004 has 230 questions Lexical chains containing the restricted set of relations that propagate verb arguments were found for 33 questions, linking verbs in those questions ... algorithm for propagating verb argument could be applied on 15 of these questions Table shows the improvement of the Question Answering system when the first 20 or 50 answers returned by factoid strategy...
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