Publications

  • strict warning: Declaration of vsite::router() should be compatible with space_og::router($op, $object = NULL, $is_active = true) in /home/uceda/webapps/openscholar_php_5_2/sites/all/modules/openscholar_vsite/vsite/plugins/vsite.inc on line 262.
  • strict warning: Non-static method vsite::excluded_paths() should not be called statically in /home/uceda/webapps/openscholar_php_5_2/sites/all/modules/openscholar_vsite/vsite/plugins/vsite.inc on line 242.
  • strict warning: Non-static method space_og::excluded_paths() should not be called statically in /home/uceda/webapps/openscholar_php_5_2/sites/all/modules/openscholar_vsite/vsite/plugins/vsite.inc on line 218.
  • strict warning: Non-static method space_type_purl::excluded_paths() should not be called statically in /home/uceda/webapps/openscholar_php_5_2/sites/all/modules/contrib/spaces/spaces_og/plugins/space_og.inc on line 185.
  • strict warning: Declaration of os_boxes_modal_siteinfo::config_path() should be compatible with os_boxes_modalframe::config_path($box) in /home/uceda/webapps/openscholar_php_5_2/sites/all/modules/os/modules/os_modalframe/plugins/os_boxes_modal_siteinfo.inc on line 65.
  • strict warning: Declaration of os_boxes_modal_sitelogo::config_path() should be compatible with os_boxes_modalframe::config_path($box) in /home/uceda/webapps/openscholar_php_5_2/sites/all/modules/os/modules/os_modalframe/plugins/os_boxes_modal_sitelogo.inc on line 56.
  • strict warning: Declaration of os_modal_wysiwyg::config_path() should be compatible with os_boxes_modalframe::config_path($box) in /home/uceda/webapps/openscholar_php_5_2/sites/all/modules/os/modules/os_modalframe/plugins/os_modal_wysiwyg.inc on line 69.
  • strict warning: Declaration of os_modal_wysiwyg::submit() should be compatible with os_boxes_modalframe::submit($form, $form_state) in /home/uceda/webapps/openscholar_php_5_2/sites/all/modules/os/modules/os_modalframe/plugins/os_modal_wysiwyg.inc on line 69.
  • strict warning: Non-static method vsite::excluded_paths() should not be called statically in /home/uceda/webapps/openscholar_php_5_2/sites/all/modules/openscholar_vsite/vsite/plugins/vsite.inc on line 242.
  • strict warning: Non-static method space_og::excluded_paths() should not be called statically in /home/uceda/webapps/openscholar_php_5_2/sites/all/modules/openscholar_vsite/vsite/plugins/vsite.inc on line 218.
  • strict warning: Non-static method space_type_purl::excluded_paths() should not be called statically in /home/uceda/webapps/openscholar_php_5_2/sites/all/modules/contrib/spaces/spaces_og/plugins/space_og.inc on line 185.
  • strict warning: Only variables should be passed by reference in /home/uceda/webapps/openscholar_php_5_2/sites/all/modules/contrib/wysiwyg_fields/includes/system.inc on line 11.
  • strict warning: Non-static method vsite::excluded_paths() should not be called statically in /home/uceda/webapps/openscholar_php_5_2/sites/all/modules/openscholar_vsite/vsite/plugins/vsite.inc on line 242.
  • strict warning: Non-static method space_og::excluded_paths() should not be called statically in /home/uceda/webapps/openscholar_php_5_2/sites/all/modules/openscholar_vsite/vsite/plugins/vsite.inc on line 218.
  • strict warning: Non-static method space_type_purl::excluded_paths() should not be called statically in /home/uceda/webapps/openscholar_php_5_2/sites/all/modules/contrib/spaces/spaces_og/plugins/space_og.inc on line 185.
  • strict warning: Non-static method vsite::excluded_paths() should not be called statically in /home/uceda/webapps/openscholar_php_5_2/sites/all/modules/openscholar_vsite/vsite/plugins/vsite.inc on line 242.
  • strict warning: Non-static method space_og::excluded_paths() should not be called statically in /home/uceda/webapps/openscholar_php_5_2/sites/all/modules/openscholar_vsite/vsite/plugins/vsite.inc on line 218.
  • strict warning: Non-static method space_type_purl::excluded_paths() should not be called statically in /home/uceda/webapps/openscholar_php_5_2/sites/all/modules/contrib/spaces/spaces_og/plugins/space_og.inc on line 185.
  • strict warning: Non-static method vsite::excluded_paths() should not be called statically in /home/uceda/webapps/openscholar_php_5_2/sites/all/modules/openscholar_vsite/vsite/plugins/vsite.inc on line 242.
  • strict warning: Non-static method space_og::excluded_paths() should not be called statically in /home/uceda/webapps/openscholar_php_5_2/sites/all/modules/openscholar_vsite/vsite/plugins/vsite.inc on line 218.
  • strict warning: Non-static method space_type_purl::excluded_paths() should not be called statically in /home/uceda/webapps/openscholar_php_5_2/sites/all/modules/contrib/spaces/spaces_og/plugins/space_og.inc on line 185.
  • strict warning: Non-static method vsite::excluded_paths() should not be called statically in /home/uceda/webapps/openscholar_php_5_2/sites/all/modules/openscholar_vsite/vsite/plugins/vsite.inc on line 242.
  • strict warning: Non-static method space_og::excluded_paths() should not be called statically in /home/uceda/webapps/openscholar_php_5_2/sites/all/modules/openscholar_vsite/vsite/plugins/vsite.inc on line 218.
  • strict warning: Non-static method space_type_purl::excluded_paths() should not be called statically in /home/uceda/webapps/openscholar_php_5_2/sites/all/modules/contrib/spaces/spaces_og/plugins/space_og.inc on line 185.
  • strict warning: Non-static method view::load() should not be called statically in /home/uceda/webapps/openscholar_php_5_2/sites/all/modules/contrib/views/views.module on line 879.
  • strict warning: Non-static method view::load() should not be called statically in /home/uceda/webapps/openscholar_php_5_2/sites/all/modules/contrib/views/views.module on line 879.
  • strict warning: Non-static method view::load() should not be called statically in /home/uceda/webapps/openscholar_php_5_2/sites/all/modules/contrib/views/views.module on line 879.
  • strict warning: Declaration of views_handler_argument::init() should be compatible with views_handler::init(&$view, $options) in /home/uceda/webapps/openscholar_php_5_2/sites/all/modules/contrib/views/handlers/views_handler_argument.inc on line 745.
  • strict warning: Declaration of views_handler_filter::options_validate() should be compatible with views_handler::options_validate($form, &$form_state) in /home/uceda/webapps/openscholar_php_5_2/sites/all/modules/contrib/views/handlers/views_handler_filter.inc on line 589.
  • strict warning: Declaration of views_handler_filter::options_submit() should be compatible with views_handler::options_submit($form, &$form_state) in /home/uceda/webapps/openscholar_php_5_2/sites/all/modules/contrib/views/handlers/views_handler_filter.inc on line 589.
  • strict warning: Declaration of views_handler_filter_boolean_operator::value_validate() should be compatible with views_handler_filter::value_validate($form, &$form_state) in /home/uceda/webapps/openscholar_php_5_2/sites/all/modules/contrib/views/handlers/views_handler_filter_boolean_operator.inc on line 149.
  • strict warning: Declaration of views_plugin_row::options_validate() should be compatible with views_plugin::options_validate(&$form, &$form_state) in /home/uceda/webapps/openscholar_php_5_2/sites/all/modules/contrib/views/plugins/views_plugin_row.inc on line 135.
  • strict warning: Declaration of views_plugin_row::options_submit() should be compatible with views_plugin::options_submit(&$form, &$form_state) in /home/uceda/webapps/openscholar_php_5_2/sites/all/modules/contrib/views/plugins/views_plugin_row.inc on line 135.
  • strict warning: Non-static method vsite::excluded_paths() should not be called statically in /home/uceda/webapps/openscholar_php_5_2/sites/all/modules/openscholar_vsite/vsite/plugins/vsite.inc on line 242.
  • strict warning: Non-static method space_og::excluded_paths() should not be called statically in /home/uceda/webapps/openscholar_php_5_2/sites/all/modules/openscholar_vsite/vsite/plugins/vsite.inc on line 218.
  • strict warning: Non-static method space_type_purl::excluded_paths() should not be called statically in /home/uceda/webapps/openscholar_php_5_2/sites/all/modules/contrib/spaces/spaces_og/plugins/space_og.inc on line 185.
  • strict warning: Non-static method vsite::excluded_paths() should not be called statically in /home/uceda/webapps/openscholar_php_5_2/sites/all/modules/openscholar_vsite/vsite/plugins/vsite.inc on line 242.
  • strict warning: Non-static method space_og::excluded_paths() should not be called statically in /home/uceda/webapps/openscholar_php_5_2/sites/all/modules/openscholar_vsite/vsite/plugins/vsite.inc on line 218.
  • strict warning: Non-static method space_type_purl::excluded_paths() should not be called statically in /home/uceda/webapps/openscholar_php_5_2/sites/all/modules/contrib/spaces/spaces_og/plugins/space_og.inc on line 185.
  • strict warning: Non-static method vsite::excluded_paths() should not be called statically in /home/uceda/webapps/openscholar_php_5_2/sites/all/modules/openscholar_vsite/vsite/plugins/vsite.inc on line 242.
  • strict warning: Non-static method space_og::excluded_paths() should not be called statically in /home/uceda/webapps/openscholar_php_5_2/sites/all/modules/openscholar_vsite/vsite/plugins/vsite.inc on line 218.
  • strict warning: Non-static method space_type_purl::excluded_paths() should not be called statically in /home/uceda/webapps/openscholar_php_5_2/sites/all/modules/contrib/spaces/spaces_og/plugins/space_og.inc on line 185.
  • strict warning: Non-static method vsite::excluded_paths() should not be called statically in /home/uceda/webapps/openscholar_php_5_2/sites/all/modules/openscholar_vsite/vsite/plugins/vsite.inc on line 242.
  • strict warning: Non-static method space_og::excluded_paths() should not be called statically in /home/uceda/webapps/openscholar_php_5_2/sites/all/modules/openscholar_vsite/vsite/plugins/vsite.inc on line 218.
  • strict warning: Non-static method space_type_purl::excluded_paths() should not be called statically in /home/uceda/webapps/openscholar_php_5_2/sites/all/modules/contrib/spaces/spaces_og/plugins/space_og.inc on line 185.
  • strict warning: Non-static method vsite::excluded_paths() should not be called statically in /home/uceda/webapps/openscholar_php_5_2/sites/all/modules/openscholar_vsite/vsite/plugins/vsite.inc on line 242.
  • strict warning: Non-static method space_og::excluded_paths() should not be called statically in /home/uceda/webapps/openscholar_php_5_2/sites/all/modules/openscholar_vsite/vsite/plugins/vsite.inc on line 218.
  • strict warning: Non-static method space_type_purl::excluded_paths() should not be called statically in /home/uceda/webapps/openscholar_php_5_2/sites/all/modules/contrib/spaces/spaces_og/plugins/space_og.inc on line 185.
  • strict warning: Non-static method vsite::excluded_paths() should not be called statically in /home/uceda/webapps/openscholar_php_5_2/sites/all/modules/openscholar_vsite/vsite/plugins/vsite.inc on line 242.
  • strict warning: Non-static method space_og::excluded_paths() should not be called statically in /home/uceda/webapps/openscholar_php_5_2/sites/all/modules/openscholar_vsite/vsite/plugins/vsite.inc on line 218.
  • strict warning: Non-static method space_type_purl::excluded_paths() should not be called statically in /home/uceda/webapps/openscholar_php_5_2/sites/all/modules/contrib/spaces/spaces_og/plugins/space_og.inc on line 185.
  • strict warning: Non-static method vsite::excluded_paths() should not be called statically in /home/uceda/webapps/openscholar_php_5_2/sites/all/modules/openscholar_vsite/vsite/plugins/vsite.inc on line 242.
  • strict warning: Non-static method space_og::excluded_paths() should not be called statically in /home/uceda/webapps/openscholar_php_5_2/sites/all/modules/openscholar_vsite/vsite/plugins/vsite.inc on line 218.
  • strict warning: Non-static method space_type_purl::excluded_paths() should not be called statically in /home/uceda/webapps/openscholar_php_5_2/sites/all/modules/contrib/spaces/spaces_og/plugins/space_og.inc on line 185.
  • strict warning: Non-static method vsite::excluded_paths() should not be called statically in /home/uceda/webapps/openscholar_php_5_2/sites/all/modules/openscholar_vsite/vsite/plugins/vsite.inc on line 242.
  • strict warning: Non-static method space_og::excluded_paths() should not be called statically in /home/uceda/webapps/openscholar_php_5_2/sites/all/modules/openscholar_vsite/vsite/plugins/vsite.inc on line 218.
  • strict warning: Non-static method space_type_purl::excluded_paths() should not be called statically in /home/uceda/webapps/openscholar_php_5_2/sites/all/modules/contrib/spaces/spaces_og/plugins/space_og.inc on line 185.
  • strict warning: Non-static method vsite::excluded_paths() should not be called statically in /home/uceda/webapps/openscholar_php_5_2/sites/all/modules/openscholar_vsite/vsite/plugins/vsite.inc on line 242.
  • strict warning: Non-static method space_og::excluded_paths() should not be called statically in /home/uceda/webapps/openscholar_php_5_2/sites/all/modules/openscholar_vsite/vsite/plugins/vsite.inc on line 218.
  • strict warning: Non-static method space_type_purl::excluded_paths() should not be called statically in /home/uceda/webapps/openscholar_php_5_2/sites/all/modules/contrib/spaces/spaces_og/plugins/space_og.inc on line 185.
  • strict warning: Non-static method vsite::excluded_paths() should not be called statically in /home/uceda/webapps/openscholar_php_5_2/sites/all/modules/openscholar_vsite/vsite/plugins/vsite.inc on line 242.
  • strict warning: Non-static method space_og::excluded_paths() should not be called statically in /home/uceda/webapps/openscholar_php_5_2/sites/all/modules/openscholar_vsite/vsite/plugins/vsite.inc on line 218.
  • strict warning: Non-static method space_type_purl::excluded_paths() should not be called statically in /home/uceda/webapps/openscholar_php_5_2/sites/all/modules/contrib/spaces/spaces_og/plugins/space_og.inc on line 185.
  • strict warning: Non-static method vsite::excluded_paths() should not be called statically in /home/uceda/webapps/openscholar_php_5_2/sites/all/modules/openscholar_vsite/vsite/plugins/vsite.inc on line 242.
  • strict warning: Non-static method space_og::excluded_paths() should not be called statically in /home/uceda/webapps/openscholar_php_5_2/sites/all/modules/openscholar_vsite/vsite/plugins/vsite.inc on line 218.
  • strict warning: Non-static method space_type_purl::excluded_paths() should not be called statically in /home/uceda/webapps/openscholar_php_5_2/sites/all/modules/contrib/spaces/spaces_og/plugins/space_og.inc on line 185.
  • strict warning: Non-static method vsite::excluded_paths() should not be called statically in /home/uceda/webapps/openscholar_php_5_2/sites/all/modules/openscholar_vsite/vsite/plugins/vsite.inc on line 242.
  • strict warning: Non-static method space_og::excluded_paths() should not be called statically in /home/uceda/webapps/openscholar_php_5_2/sites/all/modules/openscholar_vsite/vsite/plugins/vsite.inc on line 218.
  • strict warning: Non-static method space_type_purl::excluded_paths() should not be called statically in /home/uceda/webapps/openscholar_php_5_2/sites/all/modules/contrib/spaces/spaces_og/plugins/space_og.inc on line 185.
  • strict warning: Non-static method vsite::excluded_paths() should not be called statically in /home/uceda/webapps/openscholar_php_5_2/sites/all/modules/openscholar_vsite/vsite/plugins/vsite.inc on line 242.
  • strict warning: Non-static method space_og::excluded_paths() should not be called statically in /home/uceda/webapps/openscholar_php_5_2/sites/all/modules/openscholar_vsite/vsite/plugins/vsite.inc on line 218.
  • strict warning: Non-static method space_type_purl::excluded_paths() should not be called statically in /home/uceda/webapps/openscholar_php_5_2/sites/all/modules/contrib/spaces/spaces_og/plugins/space_og.inc on line 185.
  • strict warning: Non-static method vsite::excluded_paths() should not be called statically in /home/uceda/webapps/openscholar_php_5_2/sites/all/modules/openscholar_vsite/vsite/plugins/vsite.inc on line 242.
  • strict warning: Non-static method space_og::excluded_paths() should not be called statically in /home/uceda/webapps/openscholar_php_5_2/sites/all/modules/openscholar_vsite/vsite/plugins/vsite.inc on line 218.
  • strict warning: Non-static method space_type_purl::excluded_paths() should not be called statically in /home/uceda/webapps/openscholar_php_5_2/sites/all/modules/contrib/spaces/spaces_og/plugins/space_og.inc on line 185.
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L
Lin, S, Verspoor K.  2008.  A semantics-enhanced language model for unsupervised word sense disambiguation. Computational Linguistics and Intelligent Text Processing. :287–298.: Springer Abstract

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Lippincott, T, Rimell L, Verspoor K, Korhonen A.  2013.  Approaches to Verb Subcategorization for Biomedicine. Journal of Biomedical Informatics. 46(2):212-227.DOI
Liu, H, Keselj V, Blouin C, Verspoor K.  2012.  Subgraph Matching-based Literature Mining for Biomedical Relations and Events, Nov 2-4, 2012. AAAI 2012 Fall Symposium on Information Retrieval and Knowledge Discovery in Biomedical Text. , Arlington, VA, USA
Liu, H, Verspoor K, Comeau DC, MacKinlay A, Wilbur WJ.  2013.  Generalizing an Approximate Subgraph Matching-based System to Extract Events in Molecular Biology and Cancer Genetics, 9 August. Proceedings of the BioNLP Shared Task Workshop at the Association for Computational Linguistics 2013 meeting. , Sofia, Bulgaria
Liu, H, Christiansen T, Baumgartner Jr WA, Verspoor K.  2012.  BioLemmatizer: a lemmatization tool for morphological processing of biomedical text. Journal of Biomedical Semantics. 3(3) AbstractWebsite

Background
The wide variety of morphological variants of domain-specific technical terms contributes to the complexity of performing natural language processing of the scientific literature related to molecular biology. For morphological analysis of these texts, lemmatization has been actively applied in the recent biomedical research.

Results
In this work, we developed a domain-specific lemmatization tool, BioLemmatizer, for the morphological analysis of biomedical literature. The tool focuses on the inflectional morphology of English and is based on the general English lemmatization tool MorphAdorner. The BioLemmatizer is further tailored to the biological domain through incorporation of several published lexical resources. It retrieves lemmas based on the use of a word lexicon, and defines a set of rules that transform a word to a lemma if it is not encountered in the lexicon. An innovative aspect of the BioLemmatizer is the use of a hierarchical strategy for searching the lexicon, which enables the discovery of the correct lemma even if the input Part-of-Speech information is inaccurate. The BioLemmatizer achieves an accuracy of 97.5% in lemmatizing an evaluation set prepared from the CRAFT corpus, a collection of full-text biomedical articles, and an accuracy of 97.6% on the LLL05 corpus. The contribution of the BioLemmatizer to accuracy improvement of a practical information extraction task is further demonstrated when it is used as a component in a biomedical text mining system.

Conclusions
The BioLemmatizer outperforms other tools when compared with eight existing lemmatizers. The BioLemmatizer is released as an open source software and can be downloaded from http://biolemmatizer.sourceforge.net.

Liu, H, Hunter L, Keselj V, Verspoor K.  2013.  Approximate Subgraph Matching-Based Literature Mining for Biomedical Events and Relations, 04. PLoS ONE. 8:e60954., Number 4: Public Library of Science AbstractWebsite

The biomedical text mining community has focused on developing techniques to automatically extract important relations between biological components and semantic events involving genes or proteins from literature. In this paper, we propose a novel approach for mining relations and events in the biomedical literature using approximate subgraph matching. Extraction of such knowledge is performed by searching for an approximate subgraph isomorphism between key contextual dependencies and input sentence graphs. Our approach significantly increases the chance of retrieving relations or events encoded within complex dependency contexts by introducing error tolerance into the graph matching process, while maintaining the extraction precision at a high level. When evaluated on practical tasks, it achieves a 51.12% F-score in extracting nine types of biological events on the GE task of the BioNLP-ST 2011 and an 84.22% F-score in detecting protein-residue associations. The performance is comparable to the reported systems across these tasks, and thus demonstrates the generalizability of our proposed approach.

Livingston, K, Bada M, Hunter LE, Verspoor K.  2013.  Representing Annotation Compositionality and Provenance for the Semantic Web. Journal of Biomedical Semantics. 4:38.Journal link
Livingston, KM, Johnson HL, Verspoor K, Hunter LE.  2010.  Leveraging Gene Ontology Annotations to Improve a Memory-Based Language Understanding System. Semantic Computing (ICSC), 2010 IEEE Fourth International Conference on. :40–45.: IEEE Abstract

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Lu, Z, Kao HY, Wei CH, Huang M, Liu J, Kuo CJ, Hsu CN, Tsai R, Dai HJ, Okazaki N, others, Verspoor K, Livingston K, Wilbur WJ.  2011.  The gene normalization task in BioCreative III. BMC Bioinformatics. 12(Suppl 8):S2., Number Suppl 8: BioMed Central LtdWebsite