Abstract: Methods, systems, and apparatus, including computer programs encoded on computer storage media, for clustering query refinements. One method includes building a representation of a graph for a first query, wherein the graph has a node for the first query, a node for each of a plurality of refinements for the first query, and a node for each document in the document sets of the refinements, and wherein the graph has edges from the first query node to each of the refinement nodes, edges from the first query to each document in the respective document set of the first query, edges from each refinement to each document in the respective document set of the refinement, and edges from each refinement to each co-occurring query of the refinement. The method further includes clustering the refinements into refinement clusters by partitioning the refinement nodes in the graph into proper subsets.

Abstract: Aspects of the invention provide a service for data management and integration across a wide range of applications. Clustered computers may be arranged in a cloud-type configuration for storing and handling large amounts of user data under the control of a front-end management server. Communities of distributed users may collaborate on the data across multiple enterprises. Very large tabular data files are uploaded to the storage facilities. The data files are maintained as tables, and a composite table of related information is created and maintained in response to user queries. Different ways of visualizing the data are provided. Depending on the amount of information that can be displayed, features in a spatial index may the thinned for presentation. Spatial and structured queries are processing and results are intersected to obtain information for display.

Abstract: Methods, systems, and apparatus, including computer programs encoded on computer storage media, for clustering query refinements. One method includes building a representation of a graph for a first query, wherein the graph has a node for the first query, a node for each of a plurality of refinements for the first query, and a node for each document in the document sets of the refinements, and wherein the graph has edges from the first query node to each of the refinement nodes, edges from the first query to each document in the respective document set of the first query, edges from each refinement to each document in the respective document set of the refinement, and edges from each refinement to each co-occurring query of the refinement. The method further includes clustering the refinements into refinement clusters by partitioning the refinement nodes in the graph into proper subsets.

Abstract: List information can be extracted into database tables. A number of fields are independently determined for items in list. A number of database table columns are determined from most common number of list item fields. New fields are determined for items with more fields than database columns. Null fields are inserted into items with fewer fields than database columns. Information from items having the same number of fields as database columns is written to database table rows. Information from each field is written to a corresponding database table column. Streaks of poorly matching cells in a database table row are determined. Streak cells are merged and new cells are determined. Null cells are inserted if number of new cells is less than number of cells in the streak. Information from the new cells is written to the table row and columns that define the streak.

Abstract: Aspects of the invention provide a service for data management and integration across a wide range of applications. Clustered computers may be arranged in a cloud-type configuration for storing and handling large amounts of user data under the control of a front-end management server. Communities of distributed users may collaborate on the data across multiple enterprises. Very large tabular data files are uploaded to the storage facilities. The data files are maintained as tables, and a composite table of related information is created and maintained in response to user queries. Different ways of visualizing the data are provided. Depending on the amount of information that can be displayed, features in a spatial index may the thinned for presentation. Spatial and structured queries are processing and results are intersected to obtain information for display.

Abstract: Aspects of the invention provide a service for data management and integration across a wide range of applications. Clustered computers may be arranged in a cloud-type configuration for storing and handling large amounts of user data under the control of a front-end management server. Communities of distributed users may collaborate on the data across multiple enterprises. Very large tabular data files are uploaded to the storage facilities. The data files are maintained as tables, and a composite table of related information is created and maintained in response to user queries. Different ways of visualizing the data are provided. Depending on the amount of information that can be displayed, features in a spatial index may the thinned for presentation. Spatial and structured queries are processing and results are intersected to obtain information for display.

Abstract: Among other disclosure, a computer-implemented method of analyzing a form page for indexing includes identifying a form page that is configured for use in requesting any of multiple target pages. The form page includes multiple input controls. The method includes identifying at least one of the multiple input controls as being informative with regard to requesting the multiple target pages. The method includes updating an indexing record associated with the form page to reflect the identification.

Abstract: Methods, systems, and apparatus, including computer program products, for generating aspects associated with entities. In some implementations, a method includes receiving data identifying an entity; generating a group of candidate aspects for the entity; modifying the group of candidate aspects to generate a group of modified candidate aspects comprising combining similar candidate aspects and grouping candidate aspects using one or more aspect classes each associated with one or more candidate aspects; ranking one or more modified candidate aspects in the group of modified candidate aspects based on a diversity score and a popularity score; and storing an association between one or more highest ranked modified candidate aspects and the entity. The aspects can be used to organize and present search results in response to queries for the entity.

Abstract: Methods, systems, and apparatus, including computer programs encoded on computer storage media, for clustering query refinements. One method includes building a representation of a graph for a first query, wherein the graph has a node for the first query, a node for each of a plurality of refinements for the first query, and a node for each document in the document sets of the refinements, and wherein the graph has edges from the first query node to each of the refinement nodes, edges from the first query to each document in the respective document set of the first query, edges from each refinement to each document in the respective document set of the refinement, and edges from each refinement to each co-occurring query of the refinement. The method further includes clustering the refinements into refinement clusters by partitioning the refinement nodes in the graph into proper subsets.

Abstract: Among other disclosure, a computer-implemented method of analyzing a form page for indexing includes identifying a form page that is configured for use in requesting any of multiple target pages. The form page includes multiple input controls. The method includes identifying at least one of the multiple input controls as being informative with regard to requesting the multiple target pages. The method includes updating an indexing record associated with the form page to reflect the identification.

Abstract: Among other disclosed subject matter, a computer-implemented method of analyzing a form page for indexing includes identifying a form page that is configured for use in requesting any of multiple target pages, the form page including at least one text input control for retrieving any of the multiple target pages. The method includes identifying at least one keyword as being informative with regard to the text input control. The method includes updating an indexing record associated with the form page to reflect the identified keyword.

Abstract: Aspects of the invention provide a service for data management and integration across a wide range of applications. Clustered computers may be arranged in a cloud-type configuration for storing and handling large amounts of user data under the control of a front-end management server. Communities of distributed users may collaborate on the data across multiple enterprises. Very large tabular data files are uploaded to the storage facilities. The data files are maintained as tables, and a composite table of related information is created and maintained in response to user queries. Different ways of visualizing the data are provided. Depending on the amount of information that can be displayed, features in a spatial index may the thinned for presentation. Spatial and structured queries are processing and results are intersected to obtain information for display.

Abstract: Aspects of the invention provide a service for data management and integration across a wide range of applications. Clustered computers may be arranged in a cloud-type configuration for storing and handling large amounts of user data under the control of a front-end management server. Communities of distributed users may collaborate on the data across multiple enterprises. Very large tabular data files are uploaded to the storage facilities. The data files are maintained as tables, and a composite table of related information is created and maintained in response to user queries. Different ways of visualizing the data are provided. Depending on the amount of information that can be displayed, features in a spatial index may the thinned for presentation. Spatial and structured queries are processing and results are intersected to obtain information for display.

Abstract: Computer implemented methods and apparatus for extracting list information into database tables. A number of fields are independently determined for items in list. A number of database table columns are determined from most common number of list item fields. New fields are determined for items with more fields than database columns. Null fields are inserted into items with fewer fields than database columns. Information from items having the same number of fields as database columns is written to database table rows. Information from each field is written to a corresponding database table column. Streaks of poorly matching cells in a database table row are determined. Streak cells are merged and new cells are determined. Null cells are inserted if number of new cells is less than number of cells in the streak. Information from the new cells is written to the table row and columns that define the streak.

Abstract: Methods, systems, and apparatus, including computer programs encoded on a computer storage medium, for searching tables using recovered semantic information. In general, one aspect of the subject matter described in this specification can be embodied in methods that include the actions of receiving a collection of tables, each table including a plurality of rows, each row including a plurality of cells; recovering semantic information associated with each table of the collection of tables, the recovering including determining a class associated with each respective table according to a class-instance hierarchy including identifying a subject column of each table of the collection of tables; and labeling each table in the collection of tables with the respective class.

Abstract: Aspects of the invention provide a service for data management and integration across a wide range of applications. Clustered computers may be arranged in a cloud-type configuration for storing and handling large amounts of user data under the control of a front-end management server. Communities of distributed users may collaborate on the data across multiple enterprises. Very large tabular data files are uploaded to the storage facilities. The data files are maintained as tables, and a composite table of related information is created and maintained in response to user queries. Different ways of visualizing the data are provided. Depending on the amount of information that can be displayed, features in a spatial index may the thinned for presentation. Spatial and structured queries are processing and results are intersected to obtain information for display.

Abstract: Methods, systems, and apparatus, including computer program products, for generating aspects associated with entities. In some implementations, a method includes receiving data identifying an entity; generating a group of candidate aspects for the entity; modifying the group of candidate aspects to generate a group of modified candidate aspects comprising combining similar candidate aspects and grouping candidate aspects using one or more aspect classes each associated with one or more candidate aspects; ranking one or more modified candidate aspects in the group of modified candidate aspects based on a diversity score and a popularity score; and storing an association between one or more highest ranked modified candidate aspects and the entity. The aspects can be used to organize and present search results in response to queries for the entity.

Abstract: One embodiment of the present invention provides a system that facilitates searching through content which is accessible though web-based forms. During operation, the system receives a query containing keywords. Next, the system analyzes the query to create a structured query. The system then performs a lookup based on the structured query in a database containing entries describing the web-based forms. Next, the system ranks forms returned by the lookup, and uses the rankings and associated database entries to facilitate a search through content which is accessible through the forms.