Associating contextual structured data with unstructured documents on map-reduce

A computer system for integrating documents, the computer system comprising:

• one or more computer processors, one or more computer readable storage media, and
• program instructions stored on the one or more computer readable storage media for execution by, at least one of the one or more processors, the program instructions comprising:
• program instructions to extract a first set of keywords from at least one structured document;
• program instructions to generate a first batch of keywords, including a first keyword, from the first set of keywords, wherein each given keyword in the first batch of keywords is assigned a respectively corresponding weight, wherein each respectively corresponding weight is based on a number of times the given keyword appears in the structured data;
• program instructions to extract a second set of keywords, including a second keyword, from at least one unstructured document, wherein extracting the second keyword is based on the first keyword;
• program instructions to compare the first batch of keywords to the second set of keywords;
• program instructions to determine that the at least one unstructured document matches, based on a predetermined threshold, the at least one structured document, based on the comparison of the first batch of keywords to the second set of keywords, to produce an output dataset;
• and
• program instructions to store the output dataset in a storage repository in a storage location that is selected based on a keyword in the unstructured document and the weight assigned to a corresponding keyword in the structured data;
• wherein:
• the at least one structured document, the at least one unstructured document, and the output dataset, are stored in a MapReduce distributed storage system;
• and
• the second keyword is based on the first keyword by a relationship selected from the group consisting of:
• an associated weight;
• a predetermined set of topics;
• a categorical similarity to the first keyword;
• and a chronological similarity to the first keyword.