Computer implemented method for quantifying the revelance of documents

A computer implemented method comprising:

• assigning documents to one or more document families, each document family comprising one or more documents;
• calculating, for each document family, a document family coverage score DFCS, the document family coverage score being indicative of the validity of the document family in a category,
• wherein the validity is calculated from one or more first properties of each document belonging to said document family;
• calculating, for each document family, a document family linkage score DFLS, said document family linkage score being calculated by
• finding one or more document links, each document link connecting a source document to a destination document, each destination document belonging to said document family, each source document belonging to another document family;
• finding one or more document family links, wherein each document family link connects a source document family with said document family, said document family acting as destination document family, wherein the existence of each document family link is derived from the one or more found document links and wherein the DFLS is derived from the existence and weight of the one or more found document family links;
• calculating, for each document family, a document family combined relevance score DFCR by multiplying the document family coverage score DFCS and the document family linkage score DFLS having been calculated for each document family;
• grouping document families into one or more portfolios each comprising one or more document families;
• densely displaying, for each document portfolio, an aggregated view m which a plurality of data values are displayed in a summarized form on a graphical user interface with the summarized form providing a visualization of relationships between all documents in the document portfolio, the aggregated view comprising or being derived from one or more aggregated score values, the one or more aggregated score values being calculated by applying an aggregating function on the DFCR, the DFLS, or the DFCS value of the one or more document families of said portfolio,
• wherein the documents are patent documents or patent applications, and wherein the calculation of the relevance score for each document family further comprises calculating the DFLS value of a first document family whose status depends on a date lying within a time period zx, the time period zx being younger than a threshold time value, by calculating an average DFLS value of all DFLS values having been calculated for one or more second document families of the same portfolio.

A non-transitory computer readable storage medium containing instructions that when executed by a processor cause the processor to perform operations comprising:

• assigning documents to one or more document families, each document family comprising one or more documents, wherein each document is selected from a group consisting of a patent document and a patent application document;
• calculating, for each document family, a document family coverage score DFCS, the document family coverage score being indicative of the validity of the document family in a category, whereby the validity is calculated from one or more first properties of each document belonging to said document family;
• calculating, for each document family, a document family linkage score DFLS, said document family linkage score being calculated by
• finding one or more document links, each document link connecting a source document to a destination document, each destination document belonging to said document family, each source document belonging to another document family;
• finding one or more document family links, whereby each document family link connects a source document family with said document family, said document family acting as destination document family, whereby the existence of each document family link is derived from the one or more found document links and wherein the DFLS is derived from the existence and weight of the one or more found document family links;
• and
• calculating, for each document family, a document family combined relevance score DFCR by multiplying the document family coverage score DFCS and the document family linkage score DFLS having been calculated for each document family.