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정보 캐스케이드와 개인특성이 블로깅 의도에 미치는 영향
양광민,임병하,김용균,Yang, Kwang-Min,Lim, Byung-H.,Kim, Yong-Kyun 한국경영정보학회 2005 Asia Pacific Journal of Information Systems Vol.15 No.4
As new information technology(IT) adoption continues to produce many investment opportunities, imperfectly informed IT managers keep trying to acquire credible external signals to update their knowledge on new technologies. Such learning processes usually help them to reach better IT adoption decisions. In some cases, however, the opposite of the goal is achieved. Most IT managers quickly converge to the same adoption decision independent of their private information. Interestingly, such information cascade is the outcome of each individual decision maker's rational choice. A technology acceptance model(TAM) is adopted that has been widely used to predict the end-user's acceptance of a new technology. A model with individual charact-eristics and information cascade variables is constructed to explain user's intention in adopting blogging. The model is empirically tested with surveyed data. The results show that individual characteristics and information cascades have significant impacts in the case of blogging.
양광민(Kwang Min Yang) 한국정보과학회 1982 정보과학회논문지 Vol.9 No.3
순수 整數計劃중 그 응용분야가 가장 광범위하다고 할 수 있는 Set partitioning 문제를 일정시간에 동등한 knapsack 문제로 전환하는 방법을 다루고 있다. 즉 原문제의 制約式 행열에 행 vector(乘數)를 곱해 얻어지는 knapsack 문제의 可能解가 원문제의 가능해와 같도록 하는 승수를 구하는 방법이다. 素數의 逆數, 少數의 對數 및 二進法에 의한 數列 등이 승수가 될 수 있음을 보였다. This paper presents a constant-time transformation of a set packing type problem to an equivalent knapsack problem. Equivalence means that both problems have the same sets of feasible solutions. Eligible multipliers include inverses of distinctive primes, logarithms of primes and a set of multipliers based on a unique binary representation. Proofs are also given for these multipliers.