[특허]Method and system for interactive computer science testing, anaylsis and feedback

[미국특허] Method and system for interactive computer science testing, anaylsis and feedback 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	G09B-007/00
출원번호	US-0807008 (1991-12-13)
발명자 / 주소	Sack Warren (Santa Cruz CA) Bennett Randy E. (Newtown PA)
출원인 / 주소	Educational Testing Service (Princeton NJ 02)
인용정보	피인용 횟수 : 186 인용 특허 : 0

초록 ▼

Disclosed is a method and system for administering to a student a problem in computer science for testing, analysis and feedback. The student is provided with an item pool of predetermined test problems to be selected by the student. The student inputs a solution in response to the problem selected, and the solution program is converted, by lexing and parsing, into an abstract syntax tree representation. Predetermined knowledge base patterns are selected from a knowledge base and compared against portions of the abstract syntax tree. Messages and a score are provided to the student which indicate the correctness or incorrectness of the solution program, as determined by the knowledge base patterns which were matched against the portions of the abstract syntax tree. The present method and system is especially qualified to analyze free-response test items.

대표청구항 ▼

A method of evaluating a solution program input to a computer in response to a computer science problem in which the solution program may contain a plurality of errors, said method comprising the steps of: a) converting the solution program in response t the computer science problem into an abstract syntax tree representation; b) comparing a first predetermined pattern against a first portion of the abstract syntax tree, said first portion representing certain nodes of the abstract syntax tree; c) repeating step (b) against a plurality of portions of the abstract syntax tree until the first predetermined pattern matches a portion of the abstract syntax tree; wherein the first predetermined pattern has been specified so as to match a range of abstract syntax tree portion; and d) providing information correlated to the first predetermined pattern so matched; wherein said information is a textual message indicative of the correctness of the solution program. An expert system for evaluating a solution program into to a computer in response to a computer science problem comprising: a) interface means for providing communication to and from a user; b) lexing means for converting said solution program into a list of tokens, each of said tokens being representative of a part of the solution program and its location within the solution program; c) parsing means for converting the list of tokens produced by the lexing means into an abstract syntax tree representation of the solution program; d) a knowledge base comprising a plurality of predetermined knowledge base patterns wherein each of said knowledge base patterns represent a certain part of a model solution program; e) an inference engine comprising means for comparing each of said knowledge base patterns against portions of the abstract syntax tree until successfully matched; and f) means for providing to the interface output messages correlated to the knowledge base patterns successfully matched.

이 특허를 인용한 특허 (186) 인용/피인용 타임라인 분석

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IPC	Description
A	생활필수품
A62	인명구조; 소방(사다리 E06C)
A62B	인명구조용의 기구, 장치 또는 방법(특히 의료용에 사용되는 밸브 A61M 39/00; 특히 물에서 쓰이는 인명구조 장치 또는 방법 B63C 9/00; 잠수장비 B63C 11/00; 특히 항공기에 쓰는 것, 예. 낙하산, 투출좌석 B64D; 특히 광산에서 쓰이는 구조장치 E21F 11/00)
A62B-1/08	.. 윈치 또는 풀리에 제동기구가 있는 것

내보내기 구분	파일저장 인쇄 메일전송
구성항목	기본정보 상세정보 관리번호, 국가코드, 자료구분, 상태, 출원번호, 출원일자, 공개번호, 공개일자, 등록번호, 등록일자, 발명명칭(한글), 발명명칭(영문), 출원인(한글), 출원인(영문), 출원인코드, 대표IPC 관리번호, 국가코드, 자료구분, 상태, 출원번호, 출원일자, 공개번호, 공개일자, 공고번호, 공고일자, 등록번호, 등록일자, 발명명칭(한글), 발명명칭(영문), 출원인(한글), 출원인(영문), 출원인코드, 대표출원인, 출원인국적, 출원인주소, 발명자, 발명자E, 발명자코드, 발명자주소, 발명자 우편번호, 발명자국적, 대표IPC, IPC코드, 요약, 미국특허분류, 대리인주소, 대리인코드, 대리인(한글), 대리인(영문), 국제공개일자, 국제공개번호, 국제출원일자, 국제출원번호, 우선권, 우선권주장일, 우선권국가, 우선권출원번호, 원출원일자, 원출원번호, 지정국, Citing Patents, Cited Patents
저장형식	Text(ASCII format) Excel format PIAS분석(.xls)
메일정보	받는사람 (필수) @ 보내는사람 (선택) @ 제목 내용 KISTI 검색결과 이메일 서비스
안내	총 건의 자료가 검색되었습니다. 다운받으실 자료의 인덱스를 입력하세요. (1-10,000) 검색결과의 순서대로 최대 10,000건 까지 다운로드가 가능합니다. 데이타가 많을 경우 속도가 느려질 수 있습니다.(최대 2~3분 소요) 다운로드 파일은 UTF-8 형태로 저장됩니다. 파일의 내용이 제대로 보이지 않을실 때는 웹브라우저 상단의 보기 -> 인코딩 -> 자동선택 여부를 확인하십시오. ~ Text(ASCII format) Excel format

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[미국특허] Method and system for interactive computer science testing, anaylsis and feedback 원문보기

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[미국특허] Method and system for interactive computer science testing, anaylsis and feedback 원문보기

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대표청구항 ▼

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