Abstract: A method includes analyzing a plurality of electronic documents available via a network service, selecting content of the documents encountered during the analysis to generate signatures for the documents based on the content of the documents, generating an index comprising the signatures, and updating the index by performing additional analyses. The index is updated to include documents having the same signatures.

Abstract: A facility for navigating within a body of data using one of a number of distinct browse graphs is described. Initially, a navigation request is received. Based upon information contained in the received navigation request, the facility selects one of the plurality of browse graphs. In response to user input, the facility browses the body of data using the selected browse graph. The browse graphs may each correspond to a collection of the body of data, such as a website.

Abstract: The present invention provides a method and/or system for extracting or scraping links, which may be in the form of uniform resource locators (URLs), from an information source such as a Web page displayed on a Web browser, based on a rule set or a template, or based on a selection of links, and adding the extracted or scraped links to another interface in order to facilitate navigating the extracted links. The extracted or scraped links are selectable by a user of the interface to cause the Web browser to display information corresponding to the selected links listed in the interface. Controls associated with the interface may allow the user to move forward and backward through the links listed in the interface.

Abstract: A set of search requests may be analyzed to detect fixed phrases suitable for inclusion in a search index. Sets of candidate phrases may be identified among the search requests. Fixed phrases may be detected among the candidate phrases using statistical techniques, for example, by identifying phrases having a relatively high pointwise mutual information (PMI) with respect to component keywords. Fixed phrase detection may include keyword and/or phrase clustering. Clusters may correspond to topics defined using a latent Dirichlet allocation (LDA) procedure. Fixed phrase detection may include identifying phrases having relatively high PMI within particular clusters.

Abstract: A system is provided for providing location-specific images to a mobile device for display. The system generally comprises three components: a mobile device having a screen, a position identification system (e.g., a GPS receiver) that determines the position of the mobile device, and a database containing location-specific images taken at various locations. Each location-specific image is associated with geographic coordinates of the location at which the image was taken. Based on the position of the mobile device as determined by the position identification system, a location-specific image is selected from the database and displayed on the screen of the mobile device. For example, when a user is using the mobile device as a car navigation system, a location-specific image of the user's destination location can be selected and displayed when the determined position of the mobile device comes within a certain distance from the geographic coordinates of the destination location.

Abstract: The present invention relates to a method, system, and a computer-readable storage medium containing executable instructions for delivering content to a communication device, in response to an image sent by the communication device. The received image is matched with a plurality of images, and, when a match is found for the received image, content corresponding to the matching image is delivered to the communication device. The plurality of images is stored in an image database, and the corresponding content is stored in a content repository. The present invention enables a content provider to automatically update the image database and the content repository without any human intervention.

Abstract: An ad placement system provides functionality for users to rate advertisers associated with particular ads they view, and/or to rate particular ads. The ratings supplied by individual users in association with a given advertiser are used by the system to generate an average or other aggregate rating for the advertiser. This aggregate rating is exposed to users in association with the advertiser's ad or ads, allowing users to efficiently take the advertiser's reputation into consideration in deciding whether to click through or otherwise select such ads to access the advertiser's web page or site. For example, in one embodiment, each ad is displayed with a corresponding visual indication of the aggregate rating of the advertiser.

Abstract: A facility for tailoring navigation results is described. The facility receives a navigation request from a distinguished user. In response, the facility identifies a user group to which the distinguished user belongs and presents to the distinguished user a navigation result responsive to the navigation request that is adapted for members of the identified user group.

Abstract: Common search queries can be provided that are associated with a predicted path of movement of a mobile device. A location of a mobile device can be determined, along with a destination or direction of movement. Common search queries associated with the path of movement and locations along the path can be transmitted to the mobile device. A user of the mobile device is able to execute the common search queries from the mobile device.

Abstract: A software facility for selecting documents is disclosed. The facility maintains a dimensional model of a group of documents. The dimensional model reflects values for a number of differentiated attributes for each of the documents of the group. The facility receives a query specifying values for one or more of these attributes. In response to receiving the query, the facility uses the dimensional model to generate a list of documents in the group having the attribute values specified by the query.

Abstract: A method for generating search results based on a search term and displaying the search results in one or more groupings. The method includes receiving a search term entered by a user, selecting one or more search result groupings based on the search term entered by the user and at least in part on a bid amount associated with the search term, providing search results based on the search term entered by the user for each search result grouping, and displaying the search groupings to the user.

Abstract: Various embodiments of the present invention relate to a method, system and computer program product for detecting and recognizing text in the images captured by cameras and scanners. First, a series of image-processing techniques is applied to detect text regions in the image. Subsequently, the detected text regions pass through different processing stages that reduce blurring and the negative effects of variable lighting. This results in the creation of multiple images that are versions of the same text region. Some of these multiple versions are sent to a character-recognition system. The resulting texts from each of the versions of the image sent to the character-recognition system are then combined to a single result, wherein the single result is detected text.

Abstract: Methods and systems for configuring the display of items in a network-based merchandising environment are provided. In one embodiment, the present invention identifies items within a catalog of items, computes a browse relevance score for each item, and configures the display of a Web page such that items with the highest browse relevance score are prominently displayed. In at least one embodiment, browse data, such as category fit data, popularity data, newness data, etc., are used to compute the browse relevance score for each item.

Abstract: A facility for ranking in a result set is described. The facility establishes a system of ratings for combinations of a web page with the query term that reflect the level of relevance of the web page to the query term. In response to each of a number of content interactions performed by users, each with respect to a result corresponding to a web page included in a result set that was generated in response to a query comprising a set of one or more query terms, the facility adjusts a rating score for each combination of the web page and a query term among the set of query terms.

Abstract: A system is disclosed that identifies related search terms by performing a term co-occurrence analysis of search query submissions of users. The system may give different amounts of weight to different search query submissions based, for example, on whether subsequent user actions reveal that particular searches were successful. The system may use the identified related search terms to correct spelling errors in search queries received from users.

Abstract: Parallel generic and non-generic versions of a Web site allow a user of the site to either remain anonymous (if accessing the generic version) or allow user information to be collected (if accessing the non-generic version). In one exemplary embodiment, a Web site may provide a user an interface for entering and processing a search query. A search query processed by a generic version of the Web site includes a marker that informs a Web server supporting the generic Web site that the user wishes to remain anonymous. A parallel non-generic version of the Web site may also interface with the same Web server as interfaced by the generic Web site, but permit a data collecting scheme at the Web server to collect user-specific or user-identifiable information. Such user information, if collected, can be used by the Web server to enhance the user's experience with the Web site.

Abstract: The present invention provides a software facility for identifying the items most relevant to a current query based on items selected in connection with similar queries. In preferred embodiments of the invention, the facility receives a query specifying one or more query terms. In response, the facility generates a query result identifying a plurality of items that satisfy the query. The facility then produces a ranking value for at least a portion of the items identified in the query result by combining the relative frequencies with which users selected that item from the query results generated from queries specifying each of the terms specified by the query. The facility identifies as most relevant those items having the highest ranking values.

Abstract: Various embodiments of the invention describe a method, system and computer-readable storage medium containing instructions for improving the recognition of text present in an image. The image is processed by applying different operators to the image to obtain multiple processed versions of the image. Thereafter, characters and location information of the characters from each of the multiple processed versions of the image are obtained. The location information includes the pixel coordinates of the characters in the text. The text present in the image is edited, based on the relative location of the characters, to improve the recognition of the text in the image.

Abstract: Systems, methods, computer readable media having computer-executable components, and user interfaces for performing a search within a selected category are disclosed. One or more categories are presented where each of the categories is associated with at least one search result of a first set of search results retrieved in response to a first search. A selected category is specified by a user and, in response to receiving the user selection of the selected category, a search input field is produced at a location proximate to the selected category. The search input field receives at least one search term to be used in a refined search of at least one item resulting from the search that is associated with the selected category.

Abstract: A method for displaying a search history for a user is shown. The method includes generating a search history for a user including one or more listings of search results, displaying a first search result listing on a web page, and displaying at least a second search result listing on the web page, the second search result listing having a relationship to the first search result listing within the search history.