Annotating structured data for search

A computer system, the computer system comprising:

• one or more hardware processors;
• system memory coupled to the one or more hardware processors, the system memory storing instructions that are executable by the one or more hardware processors;
• the one or more hardware processors executing the instructions stored in the system memory to index data for search, including the following:
• access a web page from the system memory, the web page defining a table with table tags, the table storing different portions of data in different parts of the table, the web page also including other content outside the table tags;
• determine that a portion of the other content is relevant to describing a part of the table;
• attach the portion of the other content to the web table to annotate the table with the portion of the other content;
• generate an index for the part of the table by indexing at least over data within the part of the table along with the portion of the other content, the portion of the other content providing additional context for the data within the part of the table, the index specifically tied to the part of the table;
• store the index improving the relevance of providing the part of the table in search results;
• refine the index for the part of the table, comprising:
• access an indication that a link to a previously indexed web page was selected from among a plurality of links returned in query results
• access one or more tokens from the link;
• select a specified additional subset of table content from the table;
• determine that the one or more tokens are relevant to describing the specified subset of the table content;
• refine the index by indexing over the one or more tokens and the specified subset of table content in the system memory;
• and
• store the refined index further improving the relevance of providing the part of the table in search results.

A computer program product for use at a computer system, the computer program product for implementing a method for indexing data for search, the computer program product comprises one or more computer storage devices having stored thereon computer-executable instructions that, when executed at a processor, cause the computer system to perform the method including the following:

• access a web page from system memory, the web page defining a table with table tags, the table storing different portions of data in different parts of the table, the web page also including other content outside the table tags;
• determine that a portion of the other content is relevant to describing a part of the table;
• attach the portion of the other content to the table to annotate the table with the portion of the other content;
• generate an index for the part of the table by indexing at least over data within the part of the table along with the portion of the other content, the portion of the other content providing additional context for the data within the part of the table, the index specifically tied to the part of the table;
• store the index improving the relevance of providing the part of the table in search results;
• refine the index for the part of the table, comprising:
• access an indication that a link to a previously indexed web page was selected from among a plurality of links returned in query results;
• access one or more tokens from the link;
• select a specified additional subset of table content from the table;
• determine that the one or more tokens are relevant to describing the specified subset of the table content;
• refine the index by indexing over the one or more tokens and the specified subset of table content in the system memory;
• and
• store the refined index further improving the relevance of providing the part of the table in search results.