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Semantic Software Lab
Concordia University
Montréal, Canada

Bioinformatics

Open Mutation Miner (OMM)

Mutations as sources of evolution have long been the focus of attention in the biomedical literature. Accessing the mutational information and their impacts on protein properties facilitates research in various domains, such as enzymology and pharmacology. However, manually reading through the rich and fast growing repository of biomedical literature is expensive and time-consuming. Text mining methods can help by automatically analysing the literature and extracting mutation-related knowledge into a structured represenation.

Our Open Mutation Miner (OMM) system provides a number of advanced text mining components for mutation mining from full-text research papers, including the detection of various forms of mutation mentions, protein properties, organisms, impact mentions, and the relations between them. OMM provides output options in various formats, including populating an OWL ontology, Web service access, structured queries, and interactive use embedded in desktop clients. It is described and evaluated in detail in our paper, Naderi, N., and R. Witte, "Automated extraction and semantic analysis of mutation impacts from the biomedical literature", BMC Genomics, vol. 13, no. Suppl 4, pp. S10, 06/2012.

Semantic Text Mining for Lignocellulose Research

Ananiadou, S., D. Lee, S. Navathe, and M. Song (Eds.), Meurs, M. - J., C. Murphy, I. Morgenstern, N. Naderi, G. Butler, J. Powlowski, A. Tsang, and R. Witte, "Semantic Text Mining for Lignocellulose Research", The ACM Fifth International Workshop on Data and Text Mining in Biomedical Informatics in conjunction with CIKM, Glasgow, UK : ACM New York, NY, USA ©2011, 10/2011.

The OrganismTagger System


Our open source OrganismTagger is a hybrid rule-based/machine-learning system that extracts organism mentions from the biomedical literature, normalizes them to their scientific name, and provides grounding to the NCBI Taxonomy database. Our pipeline provides the flexibility of annotating the species of particular interest to bio-engineers on different corpora, by optionally including detection of common names, acronyms, and strains. The OrganismTagger performance has been evaluated on two manually annotated corpora, OT and Linneaus. On the OT corpus, the OrganismTagger achieves a precision and recall of 95% and 94% and a grounding accuracy of 97.5%. On the manually annotated corpus of Linneaus-100, the results show a precision and recall of 99% and 97% and grounding with an accuracy of 97.4%. It is described in detail in our publication, Naderi, N., T. Kappler, C. J. O. Baker, and R. Witte, "OrganismTagger: Detection, normalization, and grounding of organism entities in biomedical documents", Bioinformatics, vol. 27, no. 19 Oxford University Press, pp. 2721--2729, August 9, 2011.

Genozymes

Within this project, we investigated semantic support, included ontologies, linked data, and text mining, for genozymes for bioproducts and bioprocesses development.
Through the selection of appropriate technologies and their combination in a coherent system that brings measurable improvements to the users, we develop a semantic infrastructure in support of genomics-based lignocellulose research.

Mutation Miner

Baker, C. J. O., R. Witte, A. B. Gurpur, and V. Ryzhikov, "Mutation Miner", 5th International Conference of the Canadian Proteomics Initiative (CPI 2005), Toronto, Ontario, Canada, May 13–14, 2005.
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