Abstract: A method and system for providing page visibility information are provided herein. Aspects of this disclosure provide an interface by which a browser may make the visibility state of a particular page available to the page itself. The browser may track the visibility state of the page as it changes and store the state in a variable associated with the page. Code executing within the page may query this variable to determine the visibility state and take appropriate action. The browser may provide an application programming interface (API) to allow the page to request the visibility state.

Abstract: A method and system for providing page visibility information are provided herein. Aspects of this disclosure provide an interface by which a browser may make the visibility state of a particular page available to the page itself. The browser may track the visibility state of the page as it changes and store the state in a variable associated with the page. Code executing within the page may query this variable to determine the visibility state and take appropriate action. The browser may provide an application programming interface (API) to allow the page to request the visibility state.

Abstract: Methods, systems, and apparatus, including computer programs stored on computer storage media, for accessing a search interface from a structured presentation. One aspect can be embodied in machine-implemented methods that include the actions of displaying a structured presentation on a display device, receiving data characterizing a user interaction with the displayed structured presentation, the data including a specification of a first instance and a first attribute of the structured presentation, and displaying a formerly concealed search interface on the display device in response to receiving the data.

Abstract: Methods, systems, and apparatus, including computer programs encoded on a computer storage medium, for identifying a group of related instance identifiers. In one aspect, a computer storage medium is encoded with a computer program. The program comprises instructions that when executed by data processing apparatus cause the data processing apparatus to perform operations. The operations include receiving a search query at a data processing apparatus, the search query specifying attributes shared by a group of related instances, searching an electronic document collection to identify instance identifiers that are responsive to the search query, representing features of the instance identifiers in a vertex-edge graph, and scoring relevance of the instance identifiers to the search query according to the features represented in the vertex-edge graph.

Abstract: Methods, systems, and apparatus, including computer programs stored on computer storage media, for accessing a search interface from a structured presentation. One aspect can be embodied in machine-implemented methods that include the actions of displaying a structured presentation on a display device, receiving data characterizing a user interaction with the displayed structured presentation, the data including a specification of a first instance and a first attribute of the structured presentation, and displaying a formerly concealed search interface on the display device in response to receiving the data.

Abstract: Methods, systems, and apparatus, including computer programs stored on computer storage media, for retrieval and display of information from an unstructured electronic document collection. One aspect can be embodied in machine-implemented methods that include the actions of receiving a machine-readable search query from a user and responding to the search query with instructions for presenting the user with a structured presentation of instances relevant to the search query. A visual presentation of the structured presentation denotes associations between the instances and values that characterize attributes of the instances by virtue of an arrangement of identifiers of the instances and the values.