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스마트폰 상에서의 개인화 학습을 위한 랭크부스트 알고리즘
강대기,장원태,Kang, Dae-Ki,Chang, Won-Tae 한국정보통신학회 2010 한국정보통신학회논문지 Vol.14 No.1
본 논문에서는 스마트폰 상에서 한자 학습 시스템을 랭크부스트 알고리즘을 이용하여 개인화하는 방법에 대해 논하고자 한다. 한자 학습의 일반적인 환경을 보면, 학습자는 급수에 따라 일정한 개수의 학습할 한자들이 있으며, 학습이 진행됨에 따라 그 한자들 중 자신이 잘 틀리는, 즉 자신에게는 난이도가 높은 한자들이 생기게 된다. 본 논문에서는 이러한 난이도의 측정을 랭크부스트 알고리즘을 통해 구현하였다. 알고리즘은 초기에는 모든 한자들에 대해 동일한 가중치를 가지고 학습을 시작하게 하지만, 사용자가 자주 틀리는 한자에 대해서는 가중치를 높여 나간다. 본 논문에서 제안하는 랭크부스트 알고리즘은 학습자에 개인화된 난이도 순위를 매겨줌으로, 학습자가 어려운 한자에 더 자주 노출되게 한다면 학습 효과를 높일 수 있다. In this paper, we propose a personalized Chinese character education system using RankBoost algorithm on a smartphone. In a typical Chinese character education scenario, a trainee is supplied with a finite number of Chinese characters as an input set in the beginning. And, as the training session repeats, the trainee will notice her/his difficult characters in the set which she/he hardly answers. Those characters reflect their personalized degrees of difficulty. Our proposed system constructs these personalized degrees of difficulty using RankBoost algorithm. In the beginning, the algorithm start with the set of Chinese characters, of which each is associated with the same weight values. As the training sessions are repeated, the algorithm increase the weights of Chinese characters that the trainee mistakes, thereby eventually constructs the personalized difficulty degrees of Chinese characters. The proposed algorithm maximizes the educational effects by having the trainee exposed to difficult characters more than easy ones.
강대덕(姜大德) 중앙대학교 중앙사학연구소 2005 중앙사론 Vol.21 No.-
韓末の橫城地域における抗日義兵鬪爭は韓國近代史および韓國近代社會の變動と韓國獨立運動史において大した歷史的意義を持たれる劃期的な抗日民族運動であった。 橫城義兵は抗日義兵鬪爭において1895年陰曆12月(陽曆1896年1月)蜂起になった前期義兵活動であり、性格は日本帝國からの侵略の一環として甲午變亂、甲午改革、甲午․乙未變服令、乙未事變、斷髮令などが直接的な契機になって亡國の危機から國權を回復するために全國民が力を集めなければならなかった時期に行われた國權回復の救國運動であった。 日本の韓國侵略行爲を頑强に抵抗してきた光武皇帝が日本の强要で强制退位される切迫した歷史的狀況に置かれていた時期に橫城地域における抗日義兵鬪爭活動で國家意識と民族意識が高まっていき、愛國愛族の救國的愛國思想が成長して抗日義兵抗爭と抗日獨立鬪爭に發展していくようになった。 韓末の橫城地域の義兵を含んだ江原義兵と全國の義兵は始めから國家の防衛力で成長して行ける求心點を喪失したまま国内外に對處していく處地に置いてあった。前․後期義兵は身分と思想面での傳統社會の階級的な葛藤のみならず封建社會で見出される反封建的な一部の農民との理念的な摩擦などを克服して抗日鬪爭を自民族中心の民族主義的な自主․自存意識の性格を明確に示している。特に後期義兵の様子は儒生と農民、地方砲手だけでなく社會の各界各層で參與したことが見出せられてくる。即ち、義兵討伐の先頭に立った官軍も軍隊が解散された後は義兵に合流したし、官衙の官奴も義兵將になって參與することによって義兵構成面での劃期的な變化をもたらすようになった。 一方では思想面においても衛正斥邪論を基盤としていた華西學派の在野知識の儒林階層だけでなく開化派の新知識の進步階層も義兵抗爭に加擔して大衆的な性格を示した。平民出身と官僚出身の義兵將が多數參與することによって抗日鬪爭意識と反封建運動の性格も鮮明に浮刻されていた。特に後期義兵においては新たな遊擊戰術で抗日鬪爭を先導し、西洋式の銃砲類は改良された火繩銃の擴充で戰鬪面においても変わった樣相を表すようになった。 結論的に橫城地域の抗日義兵鬪爭中の後期義兵鬪爭活動は江原道義兵の一つの地域性を象徵するほど根気づよく支えていきながら抗日義兵活動を展開した。したがって、一介の江原道義兵は韓末義兵の震源地であり雄據地であった橫城地域を包括した春川․原州地域を主軸にして抗日鬪爭を展開していた。それで橫城地域の抗日義兵鬪爭は韓末義兵が持っていた理念と成果、そして歷史的な意義としてその核心的な歸結を探すことができる。
A Case Study of Puzzles Solving Applied to Programming Practice
강대기 한국공학교육학회 2010 공학교육연구 Vol.13 No.2
In this paper, we report a case study of applying puzzle solving as a programming practice. There are many students,who have attended computer programming language courses, have had difficulties in accomplishing the course assignments.It is because just following and citing the programming language course materials is not sufficient for constructing computerprograms. Many professional developers have stated that computer programming for small problems is an art of puzzle solving, where developing enterprise-size computer programming projects involves architectural insights which are alreadydealt in software engineering literatures. Following those backgrounds, we have explored the applicability of puzzle solvingin a C++ object oriented programming course and have reported the results. The experimental results show that puzzle solving is effective to the students who are interested in computer programming and have at least beginner-level knowledgeand expertise, but it turned out that puzzle solving assignments still does not draw much attention of the students who arenot seriously interested in computer programming.