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Syntactic Chunking Type Categorization Target Classification Query Generation Document Retrieval Passage Filtering Sentence Splitting Sentence Filtering.

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Presentation on theme: "Syntactic Chunking Type Categorization Target Classification Query Generation Document Retrieval Passage Filtering Sentence Splitting Sentence Filtering."— Presentation transcript:

1 Syntactic Chunking Type Categorization Target Classification Query Generation Document Retrieval Passage Filtering Sentence Splitting Sentence Filtering Topic 187 : Amazon River 187.6 What is the name of the Amazon River at its origin? Simplified: What is the Amazon River at its origin? Text Pattern Matching N-gram Proximity Search Syntactic Dependency Matching Answer Validation/Ranking WHNP What VP is NP the Amazon River PP at NP its origin #passage350(Amazon,River,origin) Location / river Major/Minor Target: Type: what_be_NP_PP_NP Query: 1.A few weeks ago, Strong and his son were part of a group who headed to Peru to try and find the origin of the Amazon River. 2. Peter Strong spent his spring vacation with his father and two other men searching the Peruvian Andes for the origin of the Amazon River. 3. An expedition is travelling through Mount Mismi in southern Peru to establish the origin of the Amazon River, the longest in the world. 4. A Czech geographical expedition team said it has found the origin of the world's longest river, the Amazon, to be the Carhuasanta River, flowing in Cailloma of Arequipa Department in southern Peru, press reports said Thursday. 5. The team also said its findings once again proved the Amazon is the longest river in the world, with an extension of more than 7,000 kilometers and an area of 7,050 square kilometers, based on their measurements made at Cailloma mountains. ([^<>]+?).{1,15}NP1.{1,15}NP2 0.8005 Answer Extracted:Peru Andes ([^<>]+?).{1,30}NP1.{1,15}NP2 0.7712 Answer Generated:Mount Mismi NP2.{1,30}NP1.{1,15} ([^<>]+?) 0.7362 Answer Generated:Carhuasanta River Answer Extracted 1. Peru 0.87556 occurrence:18 2. Andes 0.86053 occurrence: 6 3. Mount Mismi 0.85246 occurrence: 2 4. Cailloma mountains 0.85246 occurrence: 2 5. Carhuasanta River 0.81824 occurrence: 1 Question Dependency Triples: fin C:whn:N what fin C:i:VBE be be VBE:pred:N Amazon River Amazon River N:subj:N what Amazon River N:det:Det the Amazon River N:lex-mod:U Amazon Amazon River N:mod:Prep at at Prep:pcomp-n:N origin origin N:gen:N its Answer Candidate : Andes Peruvian Andes N:mod:Prep for for Prep:pcomp-n:N origin origin N:det:Det the origin N:mod:Prep of of Prep:pcomp-n:N Amazon River Amazon River N:det:Det the Amazon River N:lex-mod:U Amazon Answer Candidate : Carhuasanta River origin N:mod:Prep of of Prep:pcomp-n:N river river N:gen:N world world N:det:Det the world N:poss:U 's river N:mod:A long river N:punc:U, river N:appo:N Amazon Amazon N:det:Det the find V:punc:U, find V:mod:C inf inf C:s:N ~ inf C:i:VBE be be VBE:aux:Aux to be VBE:pred:N Carhuasanta River Answer Candidate : Mount Mismi travel through V:obj:N Mount Mismi Mount Mismi N:lex-mod:U Mount Mount Mismi N:mod:Prep in in Prep:pcomp-n:N Peru Peru N:mod:A southern Peru N:rel:C inf inf C:s:N ~ inf C:i:V establish establish V:aux:Aux to establish V:subj:N Peru establish V:obj:N origin origin N:det:Det the origin N:mod:Prep of of Prep:pcomp-n:N Amazon River Answer Candidate : Peru to Prep:pcomp-n:N Peru Peru N:rel:C inf inf C:s:N ~ inf C:i:V try try V:aux:Aux to try V:subj:N Peru try V:punc:U and try V:conj:V find find V:subj:N Peru find V:obj:N origin origin N:det:Det the origin N:mod:Prep of of Prep:pcomp-n:N Amazon River Amazon River N:det:Det the Amazon River N:lex-mod:U Amazon ANSWER: Carhuasanta River Sentence Filtering/Parsing Syntactic Pattern Matching 187.7 Others Top 7 Documents ILQUA – An IE-Driven Question Answering System Min WuTomek Strzalkowski Key Technologies Surface Text Pattern Matching: Patterns automatically generated by a pattern learning system and represented as regular expressions N-Gram Proximity Search: N-grams of question terms matched around every named entity and proximity score calculated Syntactic Dependency Matching: Syntactic relation triples of question matched with parsed sentences containing answer candidates Syntactic Patterns with Semantic Features: Matched against parsed candidate sentences to extract answers to “Other” questions 1.after three weeks of rains caused the Amazon River and its Itaya and Nanay tributaries to flood 2. establish the origin of the Amazon River, the longest in the world 3. the Amazon River changed its course, during which two other islands (Zancudo I and Zancudo II) Disappeared 4. Cocaine production and refinement in Peru, Colombia and Bolivia are polluting tributaries of the Amazon River 5. The Parque dos Igarapes, about four miles from downtown, has 15 bungalows set on 40 acres of Amazon forest. 6. an area of 7,050 square kilometers, based on their measurements made at Cailloma mountains 7. The Amazon River was born in the Andes in Peru and runs 6,500 kilometers long, with 3,165 km in Brazil. 8. argue the start, of the Amazon River, which flows from the Peruvian Andes across northern Brazil and into the Atlantic 9. large portions of this 384-year-old port city at the mouth of the Amazon River 10. The expedition survived temperatures of 23 degrees below zero in the camp located at the headwaters of the Llo River. …… Acknowledgement University of Massachusetts at Amherst ( Inquery ) BBN Technologies (Identifinder) Stanford University (Stanford Parser) NP_t NP_b; NP NP_t_b NP PP_t_d; NP_d PP_te NP_t SBAR_d_b; NP_te VP_d VBN PP_d PP_t; VBD PP PP_t PP_d NP_te NP; NP NP_te NP SBAR_te; AUX ADVP_d VP_t_d NP PP_te; NP JJS NN NN_t NP JJS NN NNS_t; NP_t VP_d NP_t_d VP; IN NP_t_d …… Pattern Learning Topic / Answers Reference Wu, M., M. Duan, S. Small and T. Strzalkowski,ILQ UA – An IE-Driven Question Answering System. In Proceedings of TREC-14. 2006. Wu, M. and T. Strzalkowski, Utilizing Co-occurrence of Answers in Question Answering. In Proceedings of COLING-ACL 2006. July 2006.


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