Patent US 7,440,951

A method of information extraction from a Web page using a broken wrapper, includes using the wrapper to extract strings from the Web page parsed in forward direction; analyzing the extracted strings according to a set of rules for assigning labels associated with the wrapper; assigning labels to those strings which satisfy the label rules; classifying the extracted strings based on content features of the labeled extracted strings; validating those labeled extracted strings which satisfy the label rules within some threshold value.