Knowledge graph for semantic searching of handwritten documents

A method for building a knowledge graph from handwritten documents, the method comprising:

• receiving a handwritten document along with dynamic handwritten data from an electronic device;
• recognizing a plurality of potential terms for one or more objects in the handwritten document by employing a handwriting recognition technique, wherein the plurality of potential terms for each of the one or more objects includes a closest recognized term and at least one alternative recognized term;
• determining one or more conceptual terms from one or more potential recognized terms of the plurality of potential terms;
• determining a multi-level relation between one or more potential recognized terms, out of the plurality of potential terms, and the handwritten document;
• and
• building a knowledge graph, wherein the knowledge graph is built based at least on one of:
• the plurality of potential terms, the one or more conceptual terms, and the determined multi-level relation between the one or more potential recognized terms and the handwritten document,
• wherein the knowledge graph is used to enable at least a semantic searching of the one or more handwritten documents.

A semantic searching system for searching handwritten documents using a knowledge graph, the semantic searching system comprising:

• a receiver module configured to receive, from an electronic device, text data having one or more terms associated with a user's intended search;
• an entity recognition module configured to perform entity recognition from the text data to determine one or more entities present in the text data;
• a concept determination module configured to determine one or more conceptual terms for each of the determined one or more entities via a named entity linking;
• an activation graph creation module configured to create an activation graph based on the determined one or more conceptual terms by adding nodes and their relationships corresponding to at least of:
• terms corresponding to the recognized entity in one or more languages, one or more synonym terms corresponding to the recognized entity, one or more abbreviation terms corresponding to the recognized entity, or one or more internally defined terms corresponding to the recognized entity;
• an associative searching module configured to perform an associated searching for obtaining one or more search results based on matching of the one or more nodes of the activation graph with one or more nodes of the knowledge graph;
• and
• a rendering module configured to render ranked and selected search results to the user,
• wherein the one or more ranked and selected search results include at least one of:
• shortcuts to open a handwritten document associated with the search results, or online links associated with the search results.