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Semantics for universal search and discovery


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WebLib has recently won a prestigious U.S. award with its NLMplus entry, a large scale semantic search and knowledge discovery application that makes innovative use of the National Library of Medicine’s vast collection of biomedical data and services.

The NLMplus app ( combines a number of leading-edge semantic knowledge resources and technologies, such as a biomedical knowledge base, a semantic search engine, a distributed search engine, and a variety of smart content analysis and discovery services. Users can concurrently access 60 NLM databases to find trusted information ranging from consumer health topics to drugs and from news to clinical trials and translational medicine. One of the important innovations of NLMplus is WebLib’s Semantic Search Engine, which typically produces relevant search results with improved precision and recall from 1.6 million PubMed Review articles, which are semantically indexed and searched on a WebLib server. The NLMplus application also sends conceptually enhanced user queries to NLM’s PubMed system of more than 21 million citations from the biomedical literature, life science journals, and online books.

Providing flexible access to heterogeneous databases is a common challenge in medical libraries, biomedical research institutions and the health care industry. The same is true for non-biomedical content and applications. WebLib’s domain independent semantic indexing and searching of local databases, in combination with universal search and discovery solutions for free and fee-based content allows all types of organizations to better serve their diverse user communities, including the public, researchers, professionals, and policy and decision makers.

Published in: Health & Medicine, Technology
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Semantics for universal search and discovery

  1. 1. Next Generation Search and Discovery Tools for the Web Semantics for Universal Search and Discovery Endre Jofoldi and dr. Tamas Doszkocs
  2. 2. What is semantic search? Keywords vs. Concepts “ semantic search is a search or a question or an action that produces meaningful results , even when the retrieved items contain none of the query terms , or the search involves no query text at all ”
  3. 3. What is NLMplus? NLMplus is a semantic search and knowledge discovery application designed to tap into the rich content offerings of the National Library of Medicine in all areas of biomedicine and health See NLMPlus
  4. 4. What is NLMplus?
  5. 5. Semantic Annotation of PubMed Reviews via the WebLib Part-of-Speech Tagger and Noun Phrase Chunker
  6. 6. phrases > key phrases > key concepts > synonyms > normalized semantic indexes <ul><ul><li>19418823;TI: anthracycline cardiotoxicity after breast cancer treatment </li></ul></ul><ul><ul><li>TI_ NORMALP: anthracycline breast canc cardiotoxicit treat </li></ul></ul><ul><ul><li>TP : anthracycline ; CUI:C0003234; Anthracycline Antibiotics; </li></ul></ul><ul><ul><ul><li>SY: anthracyclines ; </li></ul></ul></ul><ul><ul><li>TP: cardiotoxicity ; CU I:C0876994 ; cardiac toxicity; </li></ul></ul><ul><ul><li>TP: breast cancer ; CUI:C0678222; Breast Carcinoma; </li></ul></ul><ul><ul><ul><li>SY: breast tumor ; </li></ul></ul></ul><ul><ul><li>TP: breast cancer treatment ; </li></ul></ul><ul><ul><ul><li>CUI:C1511300; Breast Cancer Therapeutic Procedure ; </li></ul></ul></ul>Semantic Annotation of a PubMed Review Title
  7. 7. Semantic Searching of PubMed Reviews The WebLib Semantic Search Engine Apache Solr enterprise search engine with WebLib’s Semantic Layer / Weblib Biomedical Knowledge Base and Query translator W BQT
  8. 8. Scaling the Semantic Searching of PubMed Reviews More than 1.6 million PubMed Reviews are semantically searchable on our test server : Query: prostate cancer antigen 3 Query: transient cortical blindness after coronary angiography
  9. 10. Results from NLM’s PubMed
  10. 12. PubMed Query: transient cortical blindness following coronary angiography
  11. 13. More about the NLMplus <ul><li>NLMplus Innovations </li></ul><ul><li>Universal Search </li></ul><ul><li>Flexible access to 59 NLM databases </li></ul><ul><li>Semantic Search Engine </li></ul><ul><li>Semantic searching of PubMed Reviews </li></ul><ul><li>Biomedical Knowledge Base </li></ul><ul><li>powers “Explore and Discover” </li></ul><ul><li>powers the Semantic Search Engine </li></ul><ul><li>Intuitive User Interface </li></ul><ul><li>Wide Spectrum of NLM users </li></ul><ul><li>Consumers </li></ul><ul><li>Physicians </li></ul><ul><li>Biomedical researchers </li></ul><ul><li>Decision makers </li></ul>NLM APIs, web services and software tools utilized by the NLMplus app Entrez Programming Utilities UMLS Terminology Services Medlineplus Web Service MetaMap API SKR Web API Read more about NLMplus
  12. 14. Potential WebLib Semantic Search and Knowledge Base Applications Common Problem: accessing heterogeneous databases Meaningful Solution: semantic technologies <ul><li>Biomedical Knowledge Base and Semantic Search </li></ul><ul><li>National Library of Medicine </li></ul><ul><li>National Institutes of Health </li></ul><ul><li>Department of Health and Human Services </li></ul><ul><li>U.S. Government Departments and A gencies </li></ul><ul><li>Health Care </li></ul><ul><li>Web Knowledge Base and Semantic Search </li></ul><ul><li>Libraries and Research Organizations </li></ul><ul><li>Media and Content Companies </li></ul><ul><li>Educational Institutions </li></ul><ul><li>Businesses </li></ul><ul><li>The Web </li></ul>
  13. 15. Endre Jofoldi twitter: EndreJofoldi Dr. Tamas Doszkocs [email_address] Contact