公开(公告)号：US20180151083A1

公开(公告)日：2018-05-31

申请号：US15413647

申请日：2017-01-24

Applicant: Electronics and Telecommunications Research Institute

Inventor： Ho Young YOO ,  Su Woong LEE ,  Hyung Keun JEE

IPC: G09B5/06 ,  G06F17/30 ,  G06F17/18 ,  G09B5/08 ,  G09B7/00

Abstract: The present invention relates to a learning diagnosis apparatus, a method of diagnosing a learner's learning ability, and an adaptive learning system for providing adaptive learning using the diagnosis result. The learning diagnosis apparatus includes a database (DB) configured to store and manage adaptive learning data and store a program for estimating a learner's proficiency to each attribute and recommending learning content and a processor configured to execute the program, wherein the processor calculates a attribute proficiency vector estimation result of a specific learner using information about a solution to a personalized item together with group test solution information.

公开(公告)号：US20190318650A1

公开(公告)日：2019-10-17

申请号：US16377624

申请日：2019-04-08

Applicant: Electronics and Telecommunications Research Institute

Inventor： Ho Young YOO ,  Su Woong LEE ,  Hyung Keun JEE

IPC: G09B19/00 ,  G06F17/18

Abstract: Provided are an apparatus and method for learner diagnosis using reliability of a cognitive diagnostic model, which estimates the reliability of the cognitive diagnostic model that estimates a concept vector (α) of a learner through a Q-matrix regarding a question and an R-matrix regarding a response to a question, the method including assuming a probability (P(X|α)) of a learner response (X) when a concept vector (α) of a learner is given; obtaining a concept pattern-specific probability (P(α|X)) of the learner from the assumed concept vector and learner response of the learner; obtaining an information entropy (H) value of the learner from the concept pattern-specific probability (P(α|X)) of the learner; and obtaining reliability (γ) of an estimated result of a learner-specific concept understanding using the information entropy value of the learner and a number of concepts.

公开(公告)号：US20180151084A1

公开(公告)日：2018-05-31

申请号：US15413780

申请日：2017-01-24

Applicant: Electronics and Telecommunications Research Institute

Inventor： Su Woong LEE ,  Ho Young YOO ,  Hyung Keun JEE

IPC: G09B7/04 ,  G09B5/14

Abstract: The present invention relates to an apparatus and method for providing personalized adaptive e-learning, and more specifically, to an apparatus and method for estimating a learner's proficiency to each attribute and providing adaptive e-learning by taking into consideration an item answering result of an individual learner in a personalized learning environment.