7. A computer-implemented method of detecting spam in a collection of web pages, the method comprising: receiving a first subset of the collection of web pages identified as spam; receiving a second subset of the collection of web pages identified as non-spam content; identifying a classifier function based on values assigned to web pages in the first and second sebsets; utilizing a computer processor to classify a set of non-classified web pages as spam or non-spam content based on the classifier function; and outputting an indication of the classification of the non-classified web pages as spam or content for use by a user.
7. A computer-implemented method of detecting spam in a collection of web pages, the method comprising: receiving a first subset of the collection of web pages identified as spam; receiving a second subset of the collection of web pages identified as non-spam content; identifying a classifier function based on values assigned to web pages in the first and second sebsets; utilizing a computer processor to classify a set of non-classified web pages as spam or non-spam content based on the classifier function; and outputting an indication of the classification of the non-classified web pages as spam or content for use by a user. 8. The method of claim 7 , wherein identifying the classifier function comprises identifying the classifier function based on application of a cost function penalty to pages in the collection web pages.