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Knowledge web

  • US 7,502,770 B2
  • Filed: 04/10/2002
  • Issued: 03/10/2009
  • Est. Priority Date: 04/11/2001
  • Status: Expired due to Term
First Claim
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1. A computer database, comprising:

  • a database store for receiving, storing, and allowing access to data concerning a plurality of topics, meta data created at a time of entry of said data, meta data comprising at least one annotation concerning said data, and meta data comprising access statistics concerning said data;

    a viewing tool for user access to said data in said database;

    an electronic tutor for maintaining a model of a user, and for finding useful data in said database to present to said user;

    an authoring tool for adding data into said database; and

    a data representation schema for organizing said database into explanations, topics, explanatory paths, and meta data representing information about and relationships between said data in said database;

    wherein an explanation comprises a piece of content that is linked with topics;

    wherein every explanation has links to at least one topic that it explains;

    wherein topics and explanations are linked by said paths;

    wherein said meta data comprises at least one annotation to said explanations and topics;

    wherein explanations also have links to topics that represent prerequisite data;

    wherein a topic comprises a cluster of concepts to be learned together by a user;

    wherein at least one topic comprises multiple subtopics;

    wherein at least one topic comprises a testable unit of data that contains no subtopics, and that represents a single entity such that a single question determines whether said user is familiar with said testable unit of data;

    wherein a path is a way of describing a sequence of explanations and queries, with branch points;

    wherein paths encode information about ways to learn a topic;

    wherein a path is connected to topics that it explains and topics that it depends on as prerequisites;

    wherein a path contains branch points that are based on answers to queries;

    wherein a path contains additional information indicating how a sequence is presented;

    wherein annotations are associated with at least one of;

    explanations, topics, paths, and other annotations; and

    wherein annotations do not modify an author'"'"'s content, but add to it.

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