Abstract: According to at least one embodiment, a system including a memory, at least one processor coupled to the memory, and a user identifier component is provided. The user identifier component is executable by the at least one processor. The user identifier component is configured to receive historical usage data; determine fingerprints from the historical usage data; identify clusters of fingerprints having a calculated similarity greater than a threshold; and associate the clusters with a user.

Abstract: Methods and systems for searching and scoring look-alike web sites are provided. A web crawler can harvest text and page layout data from a website. The context of the text can be analyzed. The page layout data can be condensed. The captured text and page layout data can be stored in a database and searched. A user can provide seed data including a desirable URL and keywords. The seed data can be analyzed and compared to the database. Look-alike web pages can be identified and scored. A page scoring list can be displayed. Look-alike scoring factors can be used in an ad exchange interface.

Abstract: In a method for a direct answer for search, a search query is received over a network, one or more answer entities are determined from one or more answer candidate snippets, with an answer candidate snippet having at least a portion of content available over the network for an answer candidate, a content identifier is determined for an answer candidate, a title is tokenized for the content identifier, a comparison is performed between a vector of tokens for the title and a vector of the one or more answer entities, an indicator of the relevance is adjusted for the content identifier in accordance with the comparison, and at least one answer candidate snippet is sent for a response to the search query.

Abstract: In a method for a direct answer for search, a search query is received over a network, one or more answer entities are determined from one or more answer candidate snippets, with an answer candidate snippet having at least a portion of content available over the network for an answer candidate, a content identifier is determined for an answer candidate, a title is tokenized for the content identifier, a comparison is performed between a vector of tokens for the title and a vector of the one or more answer entities, an indicator of the relevance is adjusted for the content identifier in accordance with the comparison, and at least one answer candidate snippet is sent for a response to the search query.