1 / 5

Human Language Technologies

Human Language Technologies. Issue. Corporate data stores contain mostly natural language materials. Knowledge Management systems utilize rich semantic models.

roza
Download Presentation

Human Language Technologies

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Human Language Technologies

  2. Issue • Corporate data stores contain mostly natural language materials. • Knowledge Management systems utilize rich semantic models. • It is challenging to link the natural language materials in the data stores to the semantic models in the Knowledge Management systems.

  3. A Pair of Definitions • Semantic annotation • Process of tying semantic models and natural language together • The dynamic creation of bidirectional relationships between ontologies and unstructured/semi-structured documents • Ontology based information extraction (OBIE) • Differs from traditional information extraction through use of an ontology. • Ontology serves as a schema for the output AND as input data

  4. Results • Authors implemented two methods of ontology based information extraction: • ML algorithm to take advantage of hierarchical class structure. • ML techniques targeted at linguistic features identified • Compared to two ML methods without use of ontologies, the OBIE approaches performed better.

  5. CLIE and CLOnE • Authors recognized that the layman would find it difficult to create ontologies to be used for OBIE. • CLIE (Controlled Language Information Extraction) • “an application which will allow users to design, create, and manage information spaces without knowledge of complicated standards… or ontology engineering tools” • CLOnE • Sublanguage of English • Allows for conversion of natural language statements to ontology elements

More Related