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powered by advanced natural language technology

NLMplus is an award winning Semantic Search Engine and Biomedical Knowledge Base application that showcases a variety of natural language processing tools to provide an improved level of access to the vast collection of biomedical data and services of the National Library of Medicine.

Semantic search technology is based on a computerized system that understands content and query similar to how the human brain processes natural languages. Instead of matching the occurrence of words or symbols (as done in indexing systems), semantic search systems match concepts and their meaningful variations.

"A completely new type of dictionary with word collocation that helps students and advanced learners effectively study, write and speak natural-sounding English. This online dictionary is very helpful for the education of the IELTS, TOEFL test."

Global access to knowledge about life on Earth

PolyMeta Search and Clustering EnginePolyMeta is an advanced Web 2.0 meta-search (federated search) and clustering engine. PolyMeta enables organizations and individuals to simultaneously search diverse information resources on the Web with a common interface. The search results are merged, ranked and presented in relevance order.PolyMeta employs powerful Natural Language Processing and Information Retrieval algorithms in its query analysis and refinement, search strategy, relevancy ranking, focused drill-down and exploration of multi-dimensional information spaces.