Abstract: Techniques for enhancing content are disclosed. In some embodiments, enhancing content includes automatically identifying a set of modifications to the existing content of a page that would result in the page satisfying a set of search properties and applying at least a subset of the set of modifications to the page. Furthermore, techniques for enhancing link structure are disclosed. In some embodiments, enhancing link structure includes automatically determining a constrained link structure for a set of pages that satisfies a set of one or more constraints and that is at least in part different from an existing link structure of the set of pages and making one or more modifications to the existing link structure to at least in part realize the constrained link structure for the set of pages.

Abstract: Query generation for searchable content is provided. In some embodiments, query generation for searchable content includes receiving searchable content (e.g., the searchable content can include a unique identifier for the searchable content, such as a Uniform Resource Locator (URL) for a web site, and the web site can include one or more web pages); and generating a set of queries, the set of queries including one or more queries (e.g., the set of queries can include ranked queries) that are relevant to the searchable content.

Abstract: A computer-implemented method of managing information is disclosed. The method can include receiving a message from a mobile device configured to connect to a mobile device network (the message including a digital image taken by the mobile device and including information corresponding to words), determining the words from the digital image information using optical character recognition, indexing the digital image based on the words, and storing the digital image for later retrieval of the digital image based on one or more received search terms.

Abstract: Methods, systems, and apparatus, including computer program products, for assisting users in performing searches. In one aspect, a query for a search session is received from a user device. A first set of search results responsive to the query is provided to the user device. Search results interaction data are received from the user device that identifies actions that are in response to the search results and taken at the user device. The search results interaction data are analyzed to determine that a remedial search operation should be performed, the remedial search operation determining a second set of search results responsive to the query and providing the second set of search results to the user device for presentation to the user.

Abstract: Techniques for cross platform user joining are disclosed. In some embodiments, cross platform user joining includes associating a first user identification (UID) and a second UID with one or more Internet Protocol addresses (IPs); associating the first UID and the second UID with one or more monitored behaviors; and joining the first UID and the second UID based on the one or more IPs and the one or more monitored behaviors.

Abstract: Techniques for generating content for topics based on user demand are disclosed. In some embodiments, generating content for topics based on user demand includes determining a topic based on a user demand; automatically generating content for the topic; and selecting the content that is contextually relevant for display within a corpus of content (e.g., a web site, a social networking web page, content customized for mobile devices, content customized based on location awareness, or an electronic mail message).

Abstract: Methods, systems, and apparatus, including computer program products, in which context can be used to rank search results. Context associated with a user session can be identified. A search query received during the user session can be used to identify a contextual click model based upon the context associated with the user session.

Abstract: Query generation for searchable content is provided. In some embodiments, query generation for searchable content includes receiving searchable content (e.g., the searchable content can include a unique identifier for the searchable content, such as a Uniform Resource Locator (URL) for a web site, and the web site can include one or more web pages); and generating a set of queries, the set of queries including one or more queries (e.g., the set of queries can include ranked queries) that are relevant to the searchable content.

Abstract: A system and method for transferring annotations associated with a media file. An annotation associated with a media file is indexed to a first instance of that media file. By comparing features of the two instances, a mapping is created between the first instance of the media file and a second instance of the media file. The annotation can be indexed to the second instance using the mapping between the first and second instances. The annotation can be processed (displayed, stored, or modified) based on the index to the second instance.

Abstract: One embodiment of the present invention provides a system for ranking search-results. During operation, the system receives a query, wherein the query includes one or more terms. The system subsequently searches a dataset using the one or more terms to obtain search-results. Next, the system receives an attribute-identifier, which identifies an attribute for the obtained search-results. Then, for each search-result, the system calculates a combined score based on an attribute-value for the identified attribute, and a relevance-score for the search-result. The system then ranks the search-results based on combined scores associated with the search-results. Finally, the system presents the ranked search-results to a user.

Abstract: A system, a method, and various software tools enable a video hosting website to automatically identify posted video items that contain spam in the metadata associated with a respective video item. A spam detection tool for user-generated video items based on keyword stuffing is provided that facilitates the detection of spam in the metadata associated with a video item.

Abstract: Methods, systems, and apparatus, including computer program products, in which context can be used to rank search results. Context associated with a user session can be identified. A search query received during the user session can be used to identify a contextual click model based upon the context associated with the user session.

Abstract: A system, a method, and various software tools enable a video hosting website to automatically identify posted video items that contain spam in the metadata associated with a respective video item. A spam detection tool for user-generated video items based on concept clustering is provided that facilitates the detection of spam in the metadata associated with a video item.

Abstract: Methods, systems, and apparatus, including computer program products, in which one or more search query suggestions are made for a current search session. Similar previous search sessions which include search queries common to the current search session are identified. Based upon the similar previous search sessions, one or more suggested search queries are derived and provided to a search engine interface for serving to a user or a client.

Abstract: A system and method for transferring annotations associated with a media file. An annotation associated with a media file is indexed to a first instance of that media file. By comparing features of the two instances, a mapping is created between the first instance of the media file and a second instance of the media file. The annotation can be indexed to the second instance using the mapping between the first and second instances. The annotation can be processed (displayed, stored, or modified) based on the index to the second instance.

Abstract: Methods, systems, and apparatus, including computer programs encoded on a computer storage medium, for determining a context of the current search session. In one aspect, a method includes identifying query paths from previous search sessions, each query path defining a context and being a plurality of queries in an order in which the queries were provided for in a respective previous search session; identifying search session queries of a current search session; comparing the search session queries of the current search session to the queries in the query paths from the previous search sessions; and determining that a context of the current search session is related to a query path from the previous search sessions based at least in part on the comparison, the determining including: determining that two or more of the queries of the query path are similar to two or more of the search session queries.

Abstract: Methods, systems, and apparatus, including computer program products, in which one or more search query suggestions can be identified based upon the intersection of predicate search groups. A first predicate search group can be compared to a second predicate search group to derive a query map value associated with the intersection of the predicate search groups. The query map value can be compared to a threshold to determine whether to identify different search queries as suggestions for one another.

Abstract: Apparatus, systems and methods for contextual query revision are disclosed. A current search query is received during a search session. The current search query includes one or more current search tokens. Potentially inaccurate search tokens are identified from the one or more current search tokens. A possible replacement token is identified based upon the potentially inaccurate search token. A group of related tokens is identified from query logs, and a modified search query is generated if the replacement token is not included in the related tokens.

Abstract: Query generation for searchable content is provided. In some embodiments, query generation for searchable content includes receiving searchable content (e.g., the searchable content can include a unique identifier for the searchable content, such as a Uniform Resource Locator (URL) for a web site, and the web site can include one or more web pages); and generating a set of queries, the set of queries including one or more queries (e.g., the set of queries can include ranked queries) that are relevant to the searchable content.

Abstract: Methods, systems, and apparatus, including computer program products, in which a first search query in a session is compared to a second search query within the session to determine whether any terms included in the second search query differ from terms in the first search query. If differing search terms are identified in the second search query, the differing search terms can be excluded from bigram analysis with other search terms included in the second query.