Ontology guided financial knowledge extraction : from semi-structured information sources

ISBN-13: 9783639158823 / Angielski / Miękka / 2009 / 112 str.

Eivind Bjoraa

Opis

Web sites are usually semi-structured and§therefore very hard to query for information.§Traditionally have keyword searches and word§comparison been the way the§search engines do the searching. They have no§understanding of the real meaning of words and their§relations in a context. More advanced extraction§processes can be used to gain§better results. Based on ontology we can define§instances of words with mutual relations in§information sources and use this as a guidance of§what we want to extract. The extraction itself is§done by natural language processing and regular§expression matching of words from this ontology and§the text from the information source. In my work a§financial ontology has been constructed and an§evaluation has been performed of how an ontology can§provide a better extraction process and give us a§result which is more accurate of what we search for§and therefore provides us with a result of more§knowledge.

O autorze

Eivind Bjoraa, MS: Studied Master of Information and Communication
Technology at Agder University in Grimstad, Norway. Senior system
developer at Recommended Norway.