Abstract: A method and apparatus of a device that indexes donated content from an application on a device is described. In an exemplary embodiment, the device receives donated content for an application object from the application. The device further associates a metadata tag for a topic to the donated content. In addition, the device indexes the donated content with the metadata tag in a local search index of the device.

Abstract: A method and apparatus of a device that indexes donated content from an application on a device is described. In an exemplary embodiment, the device receives donated content for an application object from the application. The device further associates a metadata tag for a topic to the donated content. In addition, the device indexes the donated content with the metadata tag in a local search index of the device.

Abstract: A method and apparatus of a device that generates a re-ranking model used to re-rank a plurality of search results on a client device is described. In an exemplary embodiment, the device receives a crowd-sourced intra-domain model from a server, where the intra-domain model is a search result re-ranking model generated based on at least device interactions of a plurality of users interacting with a plurality of other devices. The device further generates a re-ranking model from the crowd-sourced intra-domain model and a local model, where the local model includes private data representing a device user's interaction with that device and the re-ranking model is used to re-rank a plurality of search results.

Abstract: A method and apparatus of a device that re-rank a plurality of search results is described. In an exemplary embodiment, the device receives a search query from a user and generates the plurality of search results over a plurality of search domains, wherein the plurality of search results is ranked according to a first ranking. The device additionally generates a re-ranking model, where the re-ranking model includes a plurality of intra-domain models that are generated based on at least based on-device interactions of a plurality of users interacting with a plurality of other devices and each of the plurality of search domains corresponds to one of the plurality of intra-domain models. The device further re-ranks the plurality of search results using the re-ranking model and presents the plurality of search results using the second ranking.

Abstract: A method and apparatus of a device that indexes donated content from an application on a device is described. In an exemplary embodiment, the device receives donated content for an application object from the application. The device further associates a metadata tag for a topic to the donated content. In addition, the device indexes the donated content with the metadata tag in a local search index of the device.

Abstract: A method and apparatus of a device that performs a search using a plurality of application states is described. In an exemplary embodiment, the device receives a plurality of application states from a plurality of applications running on a device. The device further creates an index of the plurality of application states. In addition, the device receives a query to search for data stored on the device. Furthermore, the device searches the plurality of application states using the index and the query. The device additionally determines a match for the query of one of the plurality of the application states and returns the match for the matching application state.

Abstract: A method and apparatus of a device that indexes donatable content from a network site is described. In an exemplary embodiment, the device receives a requested document, where the requested document includes a plurality of tags. In addition, the device detects a donatable tag in the plurality tags that indicates the network site includes donatable content. In response to the detecting, the device sends a request for the donatable content to the network site. Furthermore, the device receives the donatable content from the network site. The device additionally indexes the donatable content into an on-device search index, where at least some of the index donatable content is further returned as a search result for an on-device search.

Abstract: A method and apparatus of a device that indexes an application state in a search query index. In this embodiment, receiving the application state of the application from another device coupled to the server. The device further generates a view of the application corresponding to the application state, wherein the view is a representation of a user interface of the application corresponding to the application state. In addition, the device indexes the view in a search query index.

Abstract: A method and apparatus of a device that selects an application state for use in a multi-device search is described. In this embodiment, the device detects, on the device, that the application state has been selected as a query result for a device-level search on that device. The device further transmits the application state to a server, wherein the application state is to be indexed with other application states from other devices.

Abstract: A method and apparatus of a device that indexes donatable content from a network site is described. In an exemplary embodiment, the device receives a requested document, where the requested document includes a plurality of tags. In addition, the device detects a donatable tag in the plurality tags that indicates the network site includes donatable content. In response to the detecting, the device sends a request for the donatable content to the network site. Furthermore, the device receives the donatable content from the network site. The device additionally indexes the donatable content into an on-device search index, where at least some of the index donatable content is further returned as a search result for an on-device search.

Abstract: A method and apparatus of a device that indexes donated content from an application on a device is described. In an exemplary embodiment, the device receives donated content for an application object from the application. The device further associates a metadata tag for a topic to the donated content. In addition, the device indexes the donated content with the metadata tag in a local search index of the device.

Abstract: A method and apparatus of a device that re-rank a plurality of search results is described. In an exemplary embodiment, the device receives a search query from a user and generates the plurality of search results over a plurality of search domains, wherein the plurality of search results is ranked according to a first ranking. The device additionally generates a re-ranking model, where the re-ranking model includes a plurality of intra-domain models that are generated based on at least based on-device interactions of a plurality of users interacting with a plurality of other devices and each of the plurality of search domains corresponds to one of the plurality of intra-domain models. The device further re-ranks the plurality of search results using the re-ranking model and presents the plurality of search results using the second ranking.

Abstract: A method and apparatus of a device that generates a re-ranking model used to re-rank a plurality of search results on a client device is described. In an exemplary embodiment, the device receives a crowd-sourced intra-domain model from a server, where the intra-domain model is a search result re-ranking model generated based on at least device interactions of a plurality of users interacting with a plurality of other devices. The device further generates a re-ranking model from the crowd-sourced intra-domain model and a local model, where the local model includes private data representing a device user's interaction with that device and the re-ranking model is used to re-rank a plurality of search results.

Abstract: A method and apparatus of a device that selects an application state for use in a multi-device search is described. In this embodiment, the device detects, on the device, that the application state has been selected as a query result for a device-level search on that device. The device further transmits the application state to a server, wherein the application state is to be indexed with other application states from other devices.

Abstract: A method and apparatus of a device that indexes an application state in a search query index. In this embodiment, receiving the application state of the application from another device coupled to the server. The device further generates a view of the application corresponding to the application state, wherein the view is a representation of a user interface of the application corresponding to the application state. In addition, the device indexes the view in a search query index.

Abstract: A method and apparatus of a device that performs a search using a plurality of application states is described. In an exemplary embodiment, the device receives a plurality of application states from a plurality of applications running on a device. The device further creates an index of the plurality of application states. In addition, the device receives a query to search for data stored on the device. Furthermore, the device searches the plurality of application states using the index and the query. The device additionally determines a match for the query of one of the plurality of the application states and returns the match for the matching application state.

Abstract: In response to a search query having a search term received from a client, a current language locale is determined. A state machine is built based on the current language locale, where the state machine includes one or more nodes to represent variance of the search term having identical meaning of the search term. Each node of the state machine is traversed to identify one or more postings lists of an inverted index corresponding to each node of the state machine. One or more item identifiers obtained from the one or more postings list are returned to the client, where the item identifiers identify one or more files that contain the variance of the search term represented by the state machine.

Abstract: According to one aspect of the invention, a file received from a first user is stored in a storage device, where the file includes private metadata encrypted by a secret key associated with a second user. A private metadata identifier is stored in a predetermined storage location, indicating that private metadata of the file has not been decrypted and indexed. In response to an inquiry subsequently received from the second user, the predetermined storage location is scanned to identify the private metadata identifier based on the inquiry. The encrypted metadata identified by the private metadata identifier is transmitted to the second user for decryption. In response to the metadata that has been decrypted by the second user, the decrypted metadata is indexed for the purpose of subsequent searches of at least one of the metadata and the file.

Abstract: A data processing system receives a first user input comprising a search query. The data processing system displays in a search interface accessible across a plurality of computer application programs, a plurality of results matching the search query. The results are categorized into a plurality of categories and only a first subset of all results are displayed for each of the plurality of categories. The data processing system receives a second user input comprising a selection of one of the plurality of categories. In response to the second user input, the data processing system displays, in the search interface, a second subset of results, wherein the second subset is categorized into one or more subcategories of the selected category.

Abstract: In response to a search query having a search term received from a client, a current language locale is determined. A state machine is built based on the current language locale, where the state machine includes one or more nodes to represent variance of the search term having identical meaning of the search term. Each node of the state machine is traversed to identify one or more postings lists of an inverted index corresponding to each node of the state machine. One or more item identifiers obtained from the one or more postings list are returned to the client, where the item identifiers identify one or more files that contain the variance of the search term represented by the state machine.