NDLI: Dependency Parser Based Textual Entailment System

Content Provider	IEEE Xplore Digital Library
Author	Pakray, P. Bandyopadhyay, S. Gelbukh, A.
Copyright Year	2010
Abstract	The development of a parser based textual entailment system that is based on comparing the dependency relations in both the text and the hypothesis has been reported. The textual entailment system uses the CCG Parser and the Stanford Parser. The Dependency Parser has been run on the 2-way Parser Training and Evaluation (PETE) (SemEval-2010 Evaluation Exercises on Semantic Evaluation Task 12 Parser Evaluation using Textual Entailment) trial set and the dependency relations obtained for a text and hypothesis pair has been compared. Some of the important comparisons are: subject-verb comparison, subject-subject comparison, object-verb comparison and cross subject-verb comparison. Each of the matches is assigned some weight learned from the PETE trial set corpus. A threshold has been set on the fraction of matching hypothesis relations for YES entailment decision based on the PETE trial set. The threshold score has been applied on the PETE test set using the same methods of dependency parsing followed by comparisons. Evaluation scores for Run 1 (CCG Parser output), obtained on the test set show 58.19% precision and 45.51% recall for YES decisions and 52.51% precision and 64.82% recall for NO decisions. Evaluation scores for Run 2 (Stanford Parser output), obtained on the test set show 55.68% precision and 59.61% recall for YES decisions and 52.23% precision and 48.61% recall for NO decisions. Evaluation scores for Run 3 (combining the output from CCG parser and Stanford Parser), obtained on the test set show 57.14% precision and 74.35% recall for YES decisions and 59.18% precision and 40% recall for NO decisions.
Starting Page	393
Ending Page	397
File Size	265800
Page Count	5
File Format	PDF
ISBN	9781424484324
DOI	10.1109/AICI.2010.89
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2010-10-23
Publisher Place	China
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Training PETE Test Set Text analysis PETE Trial Set Conferences CCG Parser Semantics Textual Entailment Syntactics Feature extraction Skeleton Stanford Parser
Content Type	Text
Resource Type	Article

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

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