• Journal of Information Processing Systems
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• v.11 no.2
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• pp.239-247
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• 2015

Cryptography aims at transmitting secure data over an unsecure network in coded version so that only the intended recipient can analyze it. Communication through messages, emails, or various other modes requires high security so as to maintain the confidentiality of the content. This paper deals with IDEA's shortcoming of generating weak keys. If these keys are used for encryption and decryption may result in the easy prediction of ciphertext corresponding to the plaintext. For applying genetic approach, which is well-known optimization technique, to the weak keys, we obtained a definite solution to convert the weaker keys to stronger ones. The chances of generating a weak key in IDEA are very rare, but if it is produced, it could lead to a huge risk of attacks being made on the key, as well as on the information. Hence, measures have been taken to safeguard the key and to ensure the privacy of information.

• Korean Management Science Review
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• v.22 no.1
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• pp.1-13
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• 2005

This paper proposed a quantitative evaluation method to measure the operational effectiveness of the local military manpower administrations. The proposed method compared the relative operational effectiveness level for 12 local military manpower administrations in Korea.. The method used the IDEA (imprecise Data Envelopment Analysis) model which Is able to measure relative operational effectiveness level, and also used two input variables (labor cost, operational cost) and three output variables (number of military applicants, number of civil application approved & processed, management accuracy level). Through the model output analysis, we presented the relative effectiveness scores, the reason for non-effectiveness, and the relationship between non-effective ness level and input/output variables for each local military manpower administration. We also presented a few recommendations how to improve the effectiveness level on particular local military manpower administration.

• Journal of Fashion Business
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• v.21 no.3
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• pp.58-66
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• 2017

This study investigated the key role of sketches in creative fashion design by observing the cognitive process of idea development through a professional's design problem solving using the medium of hand sketching. The three-part semi-constrained design experiment with a professional designer, in which the participant designer was provided a source of inspiration image and asked to design a small collection of outfits, identified a fashion designer's idea development process as involving two phases of sketch processes: lateral and vertical transformation. Analysis of the video/audio recording and corresponding interviews validated lateral transformation in the designer's use of sketches to represent interpretation of the provided inspiration source. Through sketching, the designer transferred fuzzy ideas onto paper. Vertical transformation was observed through the designer's modification of previous ideas after reflecting on earlier sketches, with various ideas divided, manipulated, discarded, regrouped, and combined through sketching activities. The designer's sketching process is valuable design knowledge that facilitates the idea development process and ultimately triggers generation of creative ideas. Understanding it may benefit practitioners and educators.

• Journal of architectural history
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• v.13 no.3
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• pp.21-36
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• 2004

Most of the studies on Confucian Architecture dealt with the administrative system and typification. The study was about the outline buildings of the Architecture. However, specific view of personal architecture is limited. The aim of this study is to clarify the idea of Seonbi, Confucian Scholars in Choson Dynasty, in building the second house, Byul-Seo Architecture. The Byul-Seo was used to Jang-Su(藏修) for training oneself and teaching his students, and You-Sik(遊息) for strolling the surrounding of nature. The Byel-Seo in Bogil-do by Gosan Yoon, Sun-Do is influenced not only by the idea of Confucianism which is 'knowing through by approaching to object(格物致知)', but also by Feng-shui and Taoism. From the idea of Gosan Yoon, Sun-Do in Byul-Seo Architecture, ecology and spirit of the times must applied to our modern architecture.

• Korean Management Science Review
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• v.26 no.2
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• pp.37-59
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• 2009

Electronic brainstorming (EBS) to improve the process and outcomes of group decision making is an artifact of Information Systems legacy. Despite three decades of research with EBS in an effort to become a key resource of organizational performance, its performance when compared to that of nominal is inconclusive because of the recent debate over its usefulness in terms of productivity. Subsequent researchers have directed our attention to the re-examination of cognitive stimulation, which is considered the major benefit in computer-based idea generation, to explain the performance singularity in computer-based groups. While both cognitive and motivational factors that moderate and mediate the group-interaction process remain unexplored, individual differences that are tightly linked to creative behavior have been largely ignored to account for the discrepancy in performance. Since simulations have been widely used in situations where an outcome does not meet the assumptions, the notion of a group simulator and detailed simulation mechanisms are introduced to examine the potential effects of individual differences on the performance of computer-based idea generation groups. In addition, two prior studies that empirically explored cognitive mechanisms with the group simulator are showcased along with six propositions to initiate future research.

• Archives of design research
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• v.15 no.1
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• pp.153-161
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• 2002

There exist various conventional ideas, but few ideas may be used for actual production of advertisements. Moreover, because we tend to obtain ideas primarily from the pictures, we rely more and more on data collections, and eventually, we tend to copy them. If there is an idea which designers and copy writers can share, it will be a very effective idea. On the other hard, we need to depart from the individualistic mannerism or the reset-oriented approach depending on incidental manual works and instead, develop a lecture program which helps students e strike systematic ideas centering around processes. In order tn solve such problems, the researcher attempts to suggest "Spring Method" which has heed verified through the advertisement design practice courses at college for 7 semesters. This method focuses on ′visualization of concept′ through such stages as compression, inference and expansion, and therefore, emphasizes an organic linkage between language-oriented idea process and visualization process for advertisement ideas.

• Journal of the Korea Institute of Information and Communication Engineering
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• v.3 no.1
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• pp.69-74
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• 1999

This paper describes the principles of IDEA(international data encryption algorithm) which has been widely accepted as a data encryption algorithm and the implementation of the algorithm on the TMS320C54X DSP board is addressed. It is also shown that the processing time is significantly reduced by adapting high speed multiplication modulo (2^16+1) algorithm. The result shows data rates of about 250∼300Mbyte/sec.

• Proceedings of the Korea Society of Design Studies Conference
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• 2004.10a
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• pp.118-119
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• 2004

• Proceedings of the Korea Society of Design Studies Conference
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• 2004.05a
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• pp.164-165
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• 2004

• Proceedings of the Korea Society of Design Studies Conference
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• 2001.05a
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• pp.136-137
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• 2001