Searching locally defined entities

A method comprising:

• receiving an identifier of a document by a computing device, wherein the document comprises a plurality of passages;
• receiving identifiers of a plurality of entities by the computing device;
• for each identified entity:
• determining a plurality of relevant passages of the plurality of passages of the document by the computing device, wherein each relevant passage is relevant to the identified entity;
• determining a descriptiveness score for each of the relevant passages with respect to the identified entity by the computing device;
• and
• adding references to one or more of the relevant passages to an entry associated with the identified entity in an index according to the determined descriptiveness score by the computing device;
• and
• associating the index with the identified document by the computing device.

A system comprising:

• at least one computing device;
• and
• a document viewer adapted to present a document on a display of the at least one computing device, wherein the document comprises a plurality of passages and each passage comprises one or more entities;
• and
• a passage identifier adapted to:
• receive an identifier of an entity presented by the document viewer;
• determine a relevance score for each passage of the plurality of passages based on an entity frequency of the identified entity in the passage and a length of the passage;
• determine a descriptiveness score for each passage of the plurality of passages using the relevance score of the passage and one or more signals from the passage;
• and
• present one or more of passages of the plurality of passages according to the determined descriptiveness score on the display of the at least one computing device.