• Annual Conference on Human and Language Technology
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• 1991.10a
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• pp.267-278
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• 1991

본 논문은 한글 정보원을 Markov source로 구현하였을 때 요구되는 terra byte 이상의 방대한 기억 공간의 점유를 해결하기 위해, 이에 대한 통계자료를 조사하고 이를 기초로 기억 공간을 줄일 수 있는 방안을 제안하였다. 제안된 방식에 의해 한글 정보원을 천이확률에 따라서 구현시 paged list 구조로 7차 이상의 Markov 한국어 정보원을 수백 Kbyte의 기억 공간으로 구현 할 수 있었다. 그리고, Markov 한국어 정보원의 활용도를 넓히기 위하여 backward Markov 정보원을 제안하였다. 본 연구에서 제안한 방법은 한글 문장에서 손실된 단어의 수정뿐만이 아니라 기타 Markov source를 한글에 적용하는 모든 분야에 기초적인 자료로 활용될 것으로 기대된다.

• The Journal of the Korea Contents Association
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• v.9 no.1
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• pp.23-29
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• 2009

This paper presents a capacity estimation of a storage system accumulating all data sensed during the lifetime of an individual human being. The calculation assumes modern data compression and data collection schemes based on wearable or implanted devices under ubiquitous environment. More than 76% of the storage area is found to be used for video data storage of common TV image quality. The remaining storage area is for data from other sensing organs including audio, taste, olfactory and tactual systems in addition to indexing information. Total storage area of around 600 tera bytes is needed to cover 100 years of human life including his fetal period.

• 정보화사회
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• s.154
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• pp.4-7
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• 2002

• The monthly packaging world
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• s.276
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• pp.98-101
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• 2016

월간 포장계에서는 금번 4월호부터 12월호에 걸쳐, 패키지디자인에 있어서의 심리학의 중요성을 피력해 보고자 한다. 본 지는 이를 통해 패키지디자이너는 물론 경영자, 패키지 관련 용기, 기계, 재료 등 전 분야의 종사자들이 패키지디자인을 하는데 있어서 마케팅적 사고의 범주에서 벗어나 소비자 심리를 이해하고 공감하기를 기대해 본다. 본 고에서는 '포장디자인은 소비자 기억을 촉진시키도록 디자인되어야 한다'는 명제 아래, 패키지디자인은 기업의 일방적인 메시지에 앞서 소비자가 원하는 정보를 소비자 가치 기준에 맞춰 디자인해야 할 것을 강조해 보고, 소비자의 기억을 촉진시켜 구매로 유도하기 위해 전략적으로 디자인 해야할 것을 제시해보도록 한다.

• Proceedings of the Korea Institutes of Information Security and Cryptology Conference
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• 2003.12a
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• pp.406-411
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• 2003

최근, 디지털 기술과 네트워크의 발달로 다양한 무선통신 단말기, 반도체, 디지털 방송, 전자상거래 등 다양한 분야가 융합되어 사람과 디바이스간에 실시간으로 정보를 주고받는 환경 즉, 유비쿼터스 컴퓨팅 환경에 많은 관심이 주목되고 있다. 이러한 유비쿼터스 컴퓨팅 환경에서의 통신은 통신개체간에 실시간 개체인증은 물론 전송되는 정보의무결성, 기밀성 등 보안 서비스가 요구된다. 현재의 개체 인증은 사용자가 기억하는 패스워드 또는, 스마트 카드와 같은 보안 모듈을 사용하여 사용자와 개체간에 인증이 이루어지고 있는 실정이다. 이러한 방식은 사용자가 기억해야 할 패스워드가 증가한다거나, 보안 모듈의 손상 및 분실로 인해 자신의 프라이버시(privacy)가 노출될 수 있는 단점이 있다. 이에 본 논문에서는 사용자 고유의 생체 정보와 기억할 수 있는 패스워드를 비밀정보로 사용하여 양방향 개체 인증 키 분배 프로토콜을 제안한다.

• Korean Journal of Cognitive Science
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• v.22 no.2
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• pp.145-172
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• 2011

Prospective memory (PM) is memory for activities to be performed in the future, such as remembering to purchase a piece of fruit on the way home or remembering to give someone a telephone message. Theoretically, PM retrieval can be accomplished either by controlled monitoring of intended action or by a more automatic process that spontaneously responds to the presence of intended event. The present study examined the effect of meta-cognitive awareness in PM retrieval process. In Experiment 1, we manipulated PM condition with a salient cue to stimulate participants' meta-cognitive awareness. Results showed the salient cue condition spontaneously triggered remembering to perform an intended action. In Experiment 2, we manipulated participants' meta-cognitive awareness about PM task difficulty and about the degree to which cognitive capacity is required to realize the PM task. Results showed that PM retrieval process varied with meta-cognitive awareness (i.e., more resources were allocated if the PM task was expected to be difficult). These results imply that participants' meta-cognitive awareness play an important role in PM retrieval process.

• Korean Journal of Cognitive Science
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• v.23 no.4
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• pp.425-455
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• 2012

Multi-dimensional verbal short-term memory mechanisms are largely divided into the phonological channel and the lexical-semantic channel. The former is called phonological short-term memory and the latter is called semantic short-term memory. Phonological short-term memory is further segmented into the phonological input buffer and the phonological output buffer. In this study, the language performance of each of three patients with similar levels of conduction aphasia was analyzed in terms of multi-dimensional verbal short-term memory. To this end, three patients with conduction aphasia were instructed to perform four different aspects of language tasks that are spontaneous speaking, repetition, spontaneous writing, and dictation in both word and sentence level. Moreover, the patients' phonological memories and semantic short-term memories were evaluated using digit span tests and verbal learning tests. As a result, the three subjects exhibited various types of performances and error responses in the four aspects of language tests, and the short-term memory tests also did not produce identical results. The language performance of three patients with conduction aphasia can be explained according to whether the defects occurred in the semantic short-term memory, phonological input buffer and/or phonological output buffer. In this study, the relations between language and multi-dimensional verbal short-term memory were discussed based on the results of language tests and short-term memory tests in patients with conduction aphasia.

• Korean journal of communication and information
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• v.71
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• pp.9-32
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• 2015

The media, traditionally, serves to reinforce one's limited memory and transform those personal memories of society's members into collective memories. Notably, the mass media collects countless pieces of personalized memories for the creation of collective memories. Through the process of recollecting as well as recreating the past in the present, mass media exerts influence on the means the public appreciates and understands the history. Although numerous new medias like Internet overflows in today's society, television continues to stand firm as the salient means to construct the memories in daily lives. In this context, the research aims to analyze the televised news as the principal agent of memory producer to determine through which memories it recreates the $5{\cdot}18$ in today's media. The analysis of news values clarifies that every government placed distinctive news values on $5{\cdot}18$ within its historical context. Even so, such values were often fixed based on its relations to the existing political issues. Furthermore, through the discourse analysis, this research concludes that today's coverage of $5{\cdot}18$ is softening and becoming conventional.

• Journal of Convergence for Information Technology
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• v.9 no.8
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• pp.134-139
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• 2019

This paper describes the effect of multiple signal regeneration in quadrature digital radio frequency memory(DRFM). Single channel DRFM have good reproducibility after storing a single signal. However, when reproduced after storing multiple signals, the spurious signal is large. The quadrature DRFM consists of I and Q channels, which can greatly reduce the spurious signal. The amplitude of the spurious signal depends on the number of bits of data stored in the DRFM. In this paper, we have obtained the number of bits of signal regeneration according to the application of radio frequency memory by obtaining the size of the spurious signal according to the number of bits of the stored data of the DRFM for multiple signals. As a result of this study, 4 bits quadrature DRFM can achieve a spurious output of less than -20dB, which is used for 4 signals. Those are expected to greatly contribute to the signal analysis of electronic warfare equipment and the development of jamming device.

• The Journal of the Acoustical Society of Korea
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• v.41 no.1
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• pp.64-69
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• 2022

Background music is presented simultaneously with target messages. The main content should be kept intact for some time to aid decision making process. The maintenance of this information requires auditory working memory. The temporal compression of background music may often adopted due to the limitation of the presentation time. In this study, auditory working memory and decision making proces were analyzed in terms of temporal compression ratios of the background music. A total of 37 subjects of early twenties joined the study. Selected products were categorized based on eigen values of multi-dimensional scaling. Four presentation conditions were cases with no background music, background music with no compression, background music with low compression, and background music high compression. Matched reponses were analyzed through repeated ANOVA. Results showed that the high involvement product required more working memory resources. However, the increased level of usage did not always lead to the corresponding changes in decision making process. This approach may be useful in analyzing the role of time compression and working memory in consumer behaviors.