A SURVEY ON SEMANTIC ANNOTATION TOOLS FOR KNOWLEDGE MANAGEMENT

Support for information and knowledge exchange is a key issue in the information society. To reduce the time wasted in searching and to reduce associated user frustration much more selective user access is needed. This is possible by semantic information processing of online documents.Knowledge management in an organisation are used for managing knowledge resources in order to facilitate access and reuse of knowledge.Semantic annotation is about assigning to the entities in the text, links to their semantic descriptions. This sort of metadata provides both class and instance information about the entities. Semantic annotation is applicable for any type of textweb pages, regular documents etc. For semantic annotation, there are various manual, semiautomatic and full automatic tools are developed by various organizations like mindswap.org, ontotext.org etc. In this paper, we are presenting analysis and review of some of these tools according to their applicability for an application domain in knowledge management.Our review and analysis may help the research community in selecting an appropriate tool for extracting the relevent and desired information from huge knowledge base of an organisation.