| 45 |
efficiency of implementation for a particular application
...An example of an ordered classification is a hierarchy
...The discussion about classification has been purposely vague up to this point
...Let me know be more specific about current and past approaches to classification,particularly in the context of information retrieval
...The cluster hypothesis Before describing the battery of classification methods that are now used in information retrieval,I should like to discuss the underlying hypothesis for their use in document clustering
...A basic assumption in retrieval systems is that documents relevant to a request are separated from those which are not relevant,i
...a both of which are relevant to a request,and b one of which is relevant and the other non relevant
...Summing over a set of requests gives the relative distribution of |
