Other retrieval environments have traditionally used a keyword match, which doesn t really attempt to understand the underlying meaning of information. LI is about more than just matching - it s about working with the user to understand their interests, to suggest matching concepts and related concepts. It s dynamic and interactive -so that as concepts are presented, the way the user interacts will modify the next set of concepts and matching documents. And the real difference is its unique understanding of language.
Many systems look at single words, or often patterns from words.
LI is all about extracting language constructs - and presenting them to the user, so that the user always understands how and why information has been delivered. It means that the user is in control, and is actually learning from the information rather than just finding words that match.