Computer Science / Databases

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Coron : Plate-forme dextraction de connaissances dans les bases de donnees

Coron : Plate-forme dextraction de connaissances dans les bases de donnees

์ฝ”๋กœ๋‚˜(CORON)๋Š” ์›๋ž˜ ์ฝ”ํ˜ธํŠธ ์—ฐ๊ตฌ๋ฅผ ์œ„ํ•œ ๋„๊ตฌ๋กœ ๊ฐœ๋ฐœ๋˜์—ˆ์ง€๋งŒ, ํ˜„์žฌ๋Š” ๋…๋ฆฝ์ ์ธ ๋ฐ์ดํ„ฐ ๋งˆ์ด๋‹ ํ”Œ๋žซํผ์œผ๋กœ ์ง„ํ™”ํ–ˆ์Šต๋‹ˆ๋‹ค. ์ด ํ”Œ๋žซํผ์€ ๋‹ค์–‘ํ•œ ์•Œ๊ณ ๋ฆฌ์ฆ˜์„ ํ†ตํ•ฉํ•˜์—ฌ ๋นˆ๋„๊ฐ€ ๋†’๊ฑฐ๋‚˜ ๋“œ๋ฌธ ํŒจํ„ด์„ ์ถ”์ถœํ•˜๊ณ  ์—ฐ๊ด€ ๊ทœ์น™์„ ์ƒ์„ฑํ•˜๋Š” ๊ธฐ๋Šฅ์„ ์ œ๊ณตํ•ฉ๋‹ˆ๋‹ค. 1. ์ฝ”๋กœ๋‚˜์˜ ๊ตฌ์„ฑ ์š”์†Œ ์ฝ”๋กœ๋‚˜๋Š” ๋ฐ์ดํ„ฐ ์ค€๋น„, ๋งˆ์ด๋‹, ํ•„ํ„ฐ๋ง ๋ฐ ํ•ด์„์„ ์œ„ํ•œ ์—ฌ๋Ÿฌ ๋ชจ๋“ˆ๋กœ ๊ตฌ์„ฑ๋ฉ๋‹ˆ๋‹ค. ์‚ฌ์ „ ์ฒ˜๋ฆฌ ๋ชจ๋“ˆ: ์ด ๋ชจ๋“ˆ์€ ๋ฐ์ดํ„ฐ๋ฅผ ๋ฐ”์ด๋„ˆ๋ฆฌ ํ…Œ์ด๋ธ” ํ˜•ํƒœ๋กœ ๋ณ€ํ™˜ํ•˜๊ณ  ๋””ํฌ๋ ˆํ‹ฐ์ œ์ด์…˜(์—ฐ์†์ ์ธ ๊ฐ’์„ ๋ฒ”์ฃผํ˜• ๊ฐ’์œผ๋กœ ๋ณ€ํ™˜ํ•˜๋Š” ๊ณผ์ •)์„ ์ˆ˜ํ–‰ํ•ฉ๋‹ˆ๋‹ค. ๋˜ํ•œ ํŒŒ์ผ ํฌ๋งท ๋ณ€ํ™˜, ๋ณด์™„ ๋ฐ ์ „์น˜ ํ…Œ์ด๋ธ” ์ƒ์„ฑ

Databases Computer Science
The Coron System

The Coron System

: 1. ์‹œ์Šคํ…œ ๊ฐœ์š” ์ฝ”๋กœ๋‚˜(Coron) ์‹œ์Šคํ…œ์€ ํŠน์ • ์—ฐ๊ตฌ ํ•„์š”์„ฑ์— ๋งž์ถฐ ๊ฐœ๋ฐœ๋˜์—ˆ์œผ๋ฉฐ, ํ˜„์žฌ๋Š” ์—ฌ๋Ÿฌ ์‘์šฉ ๋ถ„์•ผ์—์„œ ์‚ฌ์šฉ๋˜๋Š” ๋…๋ฆฝ์ ์ธ ๋ฐ์ดํ„ฐ๋ฒ ์ด์Šค ๊ธฐ๋ฐ˜ ์ง€์‹ ๋ฐœ๊ฒฌ ํ”„๋ ˆ์ž„์›Œํฌ๊ฐ€ ๋˜์—ˆ์Šต๋‹ˆ๋‹ค. ์ฝ”๋กœ๋‚˜๋Š” ๊ต์œก ๋ฐ ๊ณผํ•™์  ์šฉ๋„๋ฅผ ์œ„ํ•ด ์ค€๋น„ ๋ฐ ๋งˆ์ด๋‹ ๋ชจ๋“ˆ๋กœ ๊ตฌ์„ฑ๋˜์–ด ์ด์ง„ ๋ฐ์ดํ„ฐ๋ฅผ ์ฒ˜๋ฆฌํ•˜๊ณ  ํ•„ํ„ฐ๋งํ•˜๋ฉฐ ์ถ”์ถœ๋œ ๋‹จ์œ„๋ฅผ ํ•ด์„ํ•ฉ๋‹ˆ๋‹ค. ์ฝ”๋กœ๋‚˜ ์‹œ์Šคํ…œ์€ ๋‹ค์–‘ํ•œ ๊ณ ์ „ ์•Œ๊ณ ๋ฆฌ์ฆ˜๋ฟ๋งŒ ์•„๋‹ˆ๋ผ, ์ž์ฒด์ ์œผ๋กœ ๊ฐœ๋ฐœ๋œ ํŠนํ™”๋œ ์•Œ๊ณ ๋ฆฌ์ฆ˜์„ ํฌํ•จํ•˜๊ณ  ์žˆ์Šต๋‹ˆ๋‹ค. ์ฃผ์š” ์–ธ์–ด๋Š” ์ž๋ฐ”์ด๋ฉฐ, Unix, Mac, Windows ์šด์˜ ์ฒด์ œ์™€ ํ˜ธํ™˜๋˜๋ฉฐ ๋ช…๋ น์ค„ ์ธํ„ฐํŽ˜์ด์Šค๋ฅผ ์‚ฌ์šฉํ•ฉ๋‹ˆ๋‹ค. 2

Databases Computer Science System
VOGCLUSTERS: an example of DAME web application

VOGCLUSTERS: an example of DAME web application

VOGCLUSTERS ํ”„๋กœ์ ํŠธ๋Š” ์ฒœ๋ฌธํ•™ ์—ฐ๊ตฌ์—์„œ ์ค‘์š”ํ•œ ์—ญํ• ์„ ํ•˜๋Š” ์€ํ•˜ ๊ตฌ๋ฆ„ ํด๋Ÿฌ์Šคํ„ฐ(GC) ๋ฐ์ดํ„ฐ๋ฅผ ํ†ตํ•ฉํ•˜๊ณ  ๋ถ„์„ํ•˜๋Š” ๋ฐ ์ดˆ์ ์„ ๋งž์ถ˜ ์›น ์• ํ”Œ๋ฆฌ์ผ€์ด์…˜์ž…๋‹ˆ๋‹ค. ์ด ๋…ผ๋ฌธ์€ VOGCLUSTERS์˜ ๊ฐœ๋ฐœ ๋ฐฐ๊ฒฝ, ๊ธฐ์ˆ ์  ๊ตฌ์„ฑ ์š”์†Œ, ๊ทธ๋ฆฌ๊ณ  ๋ฏธ๋ž˜ ๋ฐœ์ „ ๋ฐฉํ–ฅ์— ๋Œ€ํ•ด ์ƒ์„ธํžˆ ์„ค๋ช…ํ•ฉ๋‹ˆ๋‹ค. 1. ๊ฐœ๋ฐœ ๋ฐฐ๊ฒฝ ์€ํ•˜ ํƒ์‚ฌ ๋„๊ตฌ์˜ ๋ฐœ์ „๊ณผ ํ•จ๊ป˜ ์€ํ•˜ ๋‚ด ๊ตฌ๋ฆ„ ํด๋Ÿฌ์Šคํ„ฐ(GC)์— ๋Œ€ํ•œ ๋ฐ์ดํ„ฐ ์–‘์ด ์ฆ๊ฐ€ํ•˜๊ณ  ์žˆ์Šต๋‹ˆ๋‹ค. ์ด๋Ÿฌํ•œ ๋ฐ์ดํ„ฐ๋Š” ์ฒœ๋ฌธํ•™ ์—ฐ๊ตฌ์—์„œ ์ค‘์š”ํ•œ ์—ญํ• ์„ ํ•˜๋ฉฐ, ํŠนํžˆ ์€ํ•˜ ์ƒํƒœ์™€ ์ง„ํ™”๋ฅผ ์ดํ•ดํ•˜๋Š” ๋ฐ ์ค‘์š”ํ•ฉ๋‹ˆ๋‹ค. ๊ทธ๋Ÿฌ๋‚˜ ํ˜„์žฌ ์ด๋Ÿฌํ•œ ์ •๋ณด๋Š” ๋‹ค์–‘ํ•œ ๋…ผ๋ฌธ๊ณผ

Databases Computer Science Astrophysics
A Frequent Closed Itemsets Lattice-based Approach for Mining Minimal Non-Redundant Association Rules

A Frequent Closed Itemsets Lattice-based Approach for Mining Minimal Non-Redundant Association Rules

: ๋ณธ ๋…ผ๋ฌธ์€ ํ˜‘์—… ๊ทœ์น™ ์ถ”์ถœ ๊ณผ์ •์—์„œ ์ค‘์š”ํ•œ ๋‘ ๋‹จ๊ณ„, ์ฆ‰ ๋นˆ๋„ ํ•ญ๋ชฉ ์ง‘ํ•ฉ(Frequent Itemsets)์˜ ๋ฐœ๊ฒฌ๊ณผ ์ด๋ฅผ ๋ฐ”ํƒ•์œผ๋กœ ํ•œ ํ˜‘์—… ๊ทœ์น™ ์ƒ์„ฑ์— ์ดˆ์ ์„ ๋งž์ถ”๊ณ  ์žˆ์Šต๋‹ˆ๋‹ค. ํŠนํžˆ, ์ด ์—ฐ๊ตฌ๋Š” ์ตœ์†Œ ๋น„์ค‘๋ณต ์—ฐ๊ด€ ๊ทœ์น™(MNAR) ์ถ”์ถœ์„ ์œ„ํ•œ ์ƒˆ๋กœ์šด ์ ‘๊ทผ๋ฒ•์„ ์ œ์•ˆํ•˜๋ฉฐ, ๊ธฐ์กด ๋ฐฉ๋ฒ•๋“ค๊ณผ ๋น„๊ต ๋ถ„์„์„ ํ†ตํ•ด ๊ทธ ํšจ์œจ์„ฑ์„ ์ž…์ฆํ•˜๊ณ ์ž ํ•ฉ๋‹ˆ๋‹ค. 1. ํ˜‘์—… ๊ทœ์น™ ์ถ”์ถœ์˜ ๊ธฐ๋ณธ ๊ฐœ๋…๊ณผ ์•Œ๊ณ ๋ฆฌ์ฆ˜ ํ˜‘์—… ๊ทœ์น™ ์ถ”์ถœ์€ ํฌ๊ฒŒ ๋‘ ๋‹จ๊ณ„๋กœ ๋‚˜๋ˆŒ ์ˆ˜ ์žˆ์Šต๋‹ˆ๋‹ค: ๋นˆ๋„ ํ•ญ๋ชฉ ์ง‘ํ•ฉ(FI) ๋˜๋Š” ๋นˆ๋„ ๋‹ซํžŒ ํ•ญ๋ชฉ ์ง‘ํ•ฉ(FCI)์„ ์ฐพ๋Š” ๊ณผ์ •๊ณผ ์ด๋ฅผ ๋ฐ”ํƒ•์œผ๋กœ ํ˜‘์—… ๊ทœ์น™์„ ์ƒ

Databases Computer Science

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