@incollection{piskorski2013information,
  author = {Piskorski, Jakub and Yangarber, Roman},
  title = {Information Extraction: Past, Present and Future},
  booktitle = {Multi-source, Multilingual Information Extraction and Summarization},
  publisher = {Springer Berlin Heidelberg},
  year = {2013},
  pages = {23-49},
  url = {http://dx.doi.org/10.1007/978-3-642-28569-1_2},
  doi = {http://dx.doi.org/10.1007/978-3-642-28569-1_2}
}

@proceedings{thierrypoibeau2013multisource,,
  title = {Multi-source, multilingual information extraction and summarization},
  publisher = {Springer},
  year = {2013},
  url = {http://link.springer.com/book/10.1007/978-3-642-28569-1}
}

@misc{bakshy2012social,
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  year = {2012},
  note = {cite arxiv:1201.4145Comment: 10 pages, 7 figures. In the Proceedings of ACM WWW 2012, April 16-20,  2012, Lyon, France},
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}

@inproceedings{conf/pkdd/KluglTLHP12,
  author = {Klügl, Peter and Toepfer, Martin and Lemmerich, Florian and Hotho, Andreas and Puppe, Frank},
  title = {Collective Information Extraction with Context-Specific Consistencies.},
  booktitle = {ECML/PKDD (1)},
  publisher = {Springer},
  year = {2012},
  volume = {7523},
  pages = {728-743},
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}

@inproceedings{kdml21,
  author = {Toepfer, Martin and Kluegl, Peter and Hotho, Andreas and Puppe., Frank},
  title = {Conditional Random Fields For Local Adaptive Reference Extraction},
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@book{manning2008,
  author = {Manning, Christopher D. and Raghavan, Prabhakar and Schütze, Hinrich},
  title = {Introduction to Information Retrieval},
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@inproceedings{sorg2008cirwesa,
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}

@inproceedings{HaHe06,
  author = {Hassan-Montero, Y. and Herrero-Solana, V.},
  title = {Improving Tag-Clouds as Visual Information Retrieval Interfaces},
  booktitle = {InScit2006: International Conference on Multidisciplinary Information  Sciences and Technologies},
  year = {2006},
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}

@article{1159300,
  author = {Kayed, Mohammed and Shaalan, Khaled F.},
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  journal = {IEEE Transactions on Knowledge and Data Engineering},
  publisher = {IEEE Educational Activities Department},
  year = {2006},
  volume = {18},
  number = {10},
  pages = {1411--1428},
  note = {Member-Chia-Hui Chang and Member-Moheb Ramzy Girgis},
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}

@inproceedings{conf/semweb/TangHLL06,
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  booktitle = {International Semantic Web Conference},
  publisher = {Springer},
  year = {2006},
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}

@inproceedings{culotta04,
  author = {Culotta, A. and Bekkerman, R. and A.McCallum},
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  year = {2004}
}

@inproceedings{pm04accurate,
  author = {Peng, Fuchun and McCallum, Andrew},
  title = {Accurate Information Extraction from Research Papers using Conditional Random Fields},
  booktitle = {HLT-NAACL},
  year = {2004},
  pages = {329-336},
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}

@book{ferber2003information,
  author = {Ferber, Reginald},
  title = {Information Retrieval: Suchmodelle und Data-Mining-Verfahren für Textsammlungen und das Web},
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  year = {2003},
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}

@misc{citeulike:155,
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}

@article{seal-ieeecs,
  author = {Maedche, A. and Staab, S. and Studer, R. and Sure, Y. and Volz, R.},
  title = {{SEAL} -- {T}ying up Information Integration and Web Site
Management by Ontologies},
  journal = {IEEE-CS Data Engineering Bulletin, Special Issue on Organizingand Discovering the Semantic Web},
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@book{books/aw/Baeza-YatesR99,
  author = {Baeza-Yates, Ricardo A. and Ribeiro-Neto, Berthier A.},
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}

@article{crestani1997spreading,
  author = {Crestani, F.},
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}

@book{sparck-jones+willett97,,
  title = {Readings in Information Retrieval},
  publisher = {Morgan Kaufmann},
  year = {1997}
}

@book{sowa84,
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@book{rijsbergen79information,
  author = {van Rijsbergen, C. J.},
  title = {Information retrieval},
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}