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	author={Fader, Anthony and Zettlemoyer, Luke S and Etzioni, Oren},
	booktitle={ACL (1)},
	pages={1608--1618},
	year={2013},
	url=http://homes.cs.washington.edu/~afader/bib_pdf/acl13.pdf
}

@article{MulderKwok,
  title={Scaling question answering to the web},
  author={Kwok, Cody and Etzioni, Oren and Weld, Daniel S},
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  pages={242--262},
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  publisher={ACM},
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}

@inproceedings{BioQAWeissenborn,
  title={Answering Factoid Questions in the Biomedical Domain.},
  author={Weissenborn, Dirk and Tsatsaronis, George and Schroeder, Michael},
  booktitle={BioASQ@ CLEF},
  year={2013},
  url=http://www.cs.colorado.edu/~jbg/docs/2014_emnlp_qb_rnn.pdf
}

@inproceedings{SurveyWang,
  title={A survey of answer extraction techniques in factoid question answering},
  author={Wang, Mengqiu},
  booktitle={Proceedings of the Human Language Technology Conference and North American Chapter of the Association for Computational Linguistics (HLT-NAACL)},
  year={2006},
  url=http://www.cs.cmu.edu/~mengqiu/publication/LSII-LitReview.pdf
}

@inproceedings{QANTA,
	Title = {A Neural Network for Factoid Question Answering over Paragraphs},
	Booktitle = {Empirical Methods in Natural Language Processing},
	Author = {Mohit Iyyer and Jordan Boyd-Graber and Leonardo Claudino and Richard Socher and Hal {Daum\’{e} III}},
	Year = {2014},
	Location = {Doha, Qatar},
	url=http://cs.umd.edu/~miyyer/pubs/2014_qb_rnn.pdf
}

@article{SurveyAllam,
  title={The Question Answering Systems: A Survey},
  author={Allam, Ali Mohamed Nabil and Haggag, Mohamed Hassan},
  journal={International Journal of Research and Reviews in Information Sciences (IJRRIS)},
  volume={2},
  number={3},
  year={2012},
  url=http://aliallam.com/QA%20Survey%20Paper%20(IJRRIS).pdf
}

@article{SurveyLopez,
  title={Is question answering fit for the semantic web?: a survey},
  author={Lopez, Vanessa and Uren, Victoria and Sabou, Marta and Motta, Enrico},
  journal={Semantic Web},
  volume={2},
  number={2},
  pages={125--155},
  year={2011},
  publisher={IOS Press},
  url=http://oro.open.ac.uk/29573/1/swj124_3.pdf
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@inproceedings{Semantic2013Berant,
  title={Semantic Parsing on Freebase from Question-Answer Pairs.},
  author={Berant, Jonathan and Chou, Andrew and Frostig, Roy and Liang, Percy},
  booktitle={EMNLP},
  pages={1533--1544},
  year={2013},
  url=http://www.aclweb.org/anthology/D13-1160
}

@article{Semantic2014Bordes,
  title={Question answering with subgraph embeddings},
  author={Bordes, Antoine and Chopra, Sumit and Weston, Jason},
  journal={arXiv preprint arXiv:1406.3676},
  year={2014},
  url=http://arxiv.org/pdf/1406.3676
}

@inproceedings{AnswerBus,
  title={AnswerBus question answering system},
  author={Zheng, Zhiping},
  booktitle={Proceedings of the second international conference on Human Language Technology Research},
  pages={399--404},
  year={2002},
  organization={Morgan Kaufmann Publishers Inc.},
  url=http://sewm.pku.edu.cn/QA/reference/AnswerBus%20Question%20Answering%20System%20(2002).pdf
}

@article{WatsonOverview,
  title={Building Watson: An overview of the DeepQA project},
  author={Ferrucci, David and Brown, Eric and Chu-Carroll, Jennifer and Fan, James and Gondek, David and Kalyanpur, Aditya A and Lally, Adam and Murdock, J William and Nyberg, Eric and Prager, John and others},
  journal={AI magazine},
  volume={31},
  number={3},
  pages={59--79},
  year={2010},
  url=http://www.aaai.org/ojs/index.php/aimagazine/article/download/2303/2165
}

@inproceedings{PIQUANT2003,
  title={In question answering, two heads are better than one},
  author={Chu-Carroll, Jennifer and Czuba, Krzysztof and Prager, John and Ittycheriah, Abraham},
  booktitle={Proceedings of the 2003 Conference of the North American Chapter of the Association for Computational Linguistics on Human Language Technology-Volume 1},
  pages={24--31},
  year={2003},
  organization={Association for Computational Linguistics},
  url=http://ucrel.lancs.ac.uk/acl/N/N03/N03-1004.pdf
}

@techreport{OAQATowards,
  title={Towards the open advancement of question answer systems},
  author={Ferrucci, D and Nyberg, E and Allan, J and Barker, K and Brown, E and Chu-Carroll, J and Ciccolo, A and Duboue, P and Fan, J and Gondek, D and others},
  year={2009},
  institution={IBM Technical Report RC24789, Yorktown Heights, NY}
}

@inproceedings{Ephyra2006,
  title={A pattern learning approach to question answering within the ephyra framework},
  author={Schlaefer, Nico and Gieselmann, Petra and Schaaf, Thomas and Waibel, Alex},
  booktitle={Text, speech and dialogue},
  pages={687--694},
  year={2006},
  organization={Springer},
  url=http://petra.w-wie-wolf.de/tsd061a.pdf
}

@inproceedings{TreeEdit2010Heilman,
  title={Tree edit models for recognizing textual entailments, paraphrases, and answers to questions},
  author={Heilman, Michael and Smith, Noah A},
  booktitle={Human Language Technologies: The 2010 Annual Conference of the North American Chapter of the Association for Computational Linguistics},
  pages={1011--1019},
  year={2010},
  organization={Association for Computational Linguistics},
  url=http://aclweb.org/anthology/N/N10/N10-1145.pdf
}

@inproceedings{TreeEdit2013Yao,
  title={Answer Extraction as Sequence Tagging with Tree Edit Distance.},
  author={Yao, Xuchen and Van Durme, Benjamin and Callison-Burch, Chris and Clark, Peter},
  booktitle={HLT-NAACL},
  pages={858--867},
  year={2013},
  organization={Citeseer},
  url=http://cs.jhu.edu/~xuchen/paper/yao-jacana-qa-naacl2013.pdf
}

@inproceedings{TreeEditIR2013Yao,
  title={Automatic Coupling of Answer Extraction and Information Retrieval.},
  author={Yao, Xuchen and Van Durme, Benjamin and Clark, Peter},
  booktitle={ACL (2)},
  pages={159--165},
  year={2013},
  organization={Citeseer},
  url=http://cs.jhu.edu/~xuchen/paper/yao-jacana-ir-acl2013.pdf
}

@inproceedings{AnsSel2013Severyn,
  title={Automatic Feature Engineering for Answer Selection and Extraction.},
  author={Severyn, Aliaksei and Moschitti, Alessandro},
  booktitle={EMNLP},
  pages={458--467},
  year={2013},
  url=http://disi.unitn.it/~severyn/papers/emnlp2013.pdf
}