• Asia pacific journal of information systems
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• 제26권2호
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• pp.290-298
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• 2016

Human cognition and decision-making related to information systems (IS) is a major area of interest in IS research. Among these areas, cognitive bias rooted in behavioral economics is gaining considerable attention from researchers. In the present study, we identify the role of cognitive biases and discuss how they shape the information security behavior. We also seek research opportunities to provide directions and implications for future research.

• 한국산학기술학회논문지
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• 제17권5호
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• pp.538-547
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• 2016

정보보안 인식 및 행위에 미치는 요소와 관련하여 심리학에서 사용되는 개념인 낙관적 편견과의 연관성에 대한 연구가 활발하다. 즉, 개인이 가진 낙관적 편견이 정보윤리 활동에 얼마나 어느 분야에 영향을 미치는 가를 알아보는 것이다. 이러한 점에서 본 연구는 개인의 낙관적 편견과 정보보안 인식 및 정보보안 행위와의 관련성을 실증해 보았다. 국내 민간기업 종사하는 111명을 대상으로 설문조사한 결과, 개인의 보안관련 경험적 요인으로 인해 개인별 낙관적 편견이 존재하며, 낙관적 편견은 정보보안 인식에 영향을 미치며, 낙관적 편견이 많을수록 정보보안에 대한 인식은 부(-)의 영향을 미침으로서 정보보안 인식이 낮아진다는 것을 확인하였다. 즉, 낙관적 편견이 정보보안 인식에 영향을 미치며, 낙관적 편견을 줄이는 활동을 함으로써 정보유출 등 정보보안 사고를 줄이는데 기여할 것으로 판단된다. 그러나, 정보보안 인식을 제고시키는데 낙관적 편견이 조절효과를 보여줄 것으로 판단되었어나 그 조절효과를 보여주지 못하였다. 그 이유는 낙관적 편견관련 건강분야 연구와 달리 IT분야는 선행연구가 부족하여 구체적인 조절 요인을 제시하는데 어려움이 있는 등의 한계점이 제시되었다.

• Journal of Information Processing Systems
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• 제19권5호
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• pp.641-651
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• 2023

Malicious hate speech and gender bias comments are common in online communities, causing social problems in our society. Gender bias and hate speech detection has been investigated. However, it is difficult because there are diverse ways to express them in words. To solve this problem, we attempted to detect malicious comments in a Korean hate speech dataset constructed in 2020. We explored bidirectional encoder representations from transformers (BERT)-based deep learning models utilizing hyperparameter tuning, data sampling, and logits ensembles with a label distribution. We evaluated our model in Kaggle competitions for gender bias, general bias, and hate speech detection. For gender bias detection, an F1-score of 0.7711 was achieved using an ensemble of the Soongsil-BERT and KcELECTRA models. The general bias task included the gender bias task, and the ensemble model achieved the best F1-score of 0.7166.

• 대한전자공학회:학술대회논문집
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• 대한전자공학회 2001년도 하계종합학술대회 논문집(1)
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• pp.393-396
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• 2001

In this paper, a new type of linearizer using a parallel diode with a bias feed resistance has been studied. It has positive gain and negative phase deviations because of a nonlinearity of the diode and movement of bias point cause by a voltage drop at the bias feed resistance. This predistortion linearizer consists of the little component and miniaturizes circuit design. The characteristics of this linearizer can be easily tuned using input bias voltage. In fabricated linearizer, maximum gain and Phase deviation of the linearizer is 1dB, 21$^{\circ}$ respectively. By applying its characteristics to the power amplifier, it will be linearized power amplifier.

• 전자공학회논문지
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• 제49권10호
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• pp.43-46
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• 2012

본 논문에서는 구동 증폭기와 Class-E 전력증폭기를 결합하여 높은 효율의 고이득 이단 전력증폭기를 구현하였다. 고효율 이단 Class-E 전력증폭기의 입력 단에 적응형 바이어스 조절 회로를 적용하여 낮은 입력 전력의 전력효율을 개선하였다. 최대출력인 40 dBm에서 고정 바이어스 전력증폭기와 적응형 바이어스 증폭기 둘 다 약 76 %의 효율을 갖는다. 하지만 적응형 바이어스 조절 회로가 적용된 전력증폭기의 입력전력 6dBm 인가했을 때 효율은 약 70 %이고 고정된 바이어스 입력시에 효율은 약 50 %이다. 바이어스 조절을 통해 낮은 입력에서 높은 효율을 갖는 회로를 설계하였다.

• 대한불안의학회지
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• 제8권1호
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• pp.3-8
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• 2012

Patients with panic disoder (PD) show recollection of their first panic attack, which resembles a trauma that is perceived as an unexpected frightening and subjectively life-threatening event. Information-processing models suggest that anxiety disorders may be characterized by a memory bias for threat-related information. This paper reviews the previous researches that investigated the implicit and/or explicit biases in patients with panic disorder. Among the 17 studies, which addressed the explicit memory bias in PD patients, 11 (64.7%) were found to be explicit memory bias in PD patients. In regards to the implicit memory bias, 4 out of 9 studies (44.4%) were found to support the memory bias. The result shows that evidence of explicit memory bias in PD patients was supported by a number of previous researches. However, evidence of implicit memory bias seems less robust, thus, needs further research for replication. Also, development of new paradigms and applications of various methods will be needed in further researches on memory bias in PD patients.

• 산업융합연구
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• 제19권6호
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• pp.145-153
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• 2021

본 연구는 사회복지 전공대학생의 정보보안 태도와 정보보안 행위와의 관계에서 개인의 낙관적 편견과 정보보안 의도의 이중 매개효과가 있는지 실증 검증하는 데 있다. 사회복지 전공대학생 295명을 대상으로 하였다. 수집된 자료는 SPSS Process macro를 활용하여 빈도분석, 기술통계 분석, 요인분석과 신뢰도 분석, 상관분석, 부트스트랩을 이용하여 분석하였다. 그 결과 첫째, 변인 간에는 모두 유의한 상관관계가 있었다. 둘째, 정보보안 태도와 정보보안 행위의 관계에서 개인의 낙관적 편견과 정보보안 의도는 각각 단순 매개효과가 있었다. 셋째, 정보보안 태도와 정보보안 행위의 관계에서 개인의 낙관적 편견과 정보보안 의도를 동시 투입하였을 때 각각 단순 매개효과가 있었다. 넷째, 개인의 낙관적 편견과 정보보안 의도는 이중 매개효과가 있었다. 본 연구는 사회복지 전공대학생들의 정보보안에 대한 정보보안 태도, 개인의 낙관적 편견, 정보보안 의도, 정보보안 행위를 활용한 모델의 확장성과 사회복지 정보보안 교육을 위한 기초 자료를 제공하였다.

• Journal of Information Science Theory and Practice
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• 제8권2호
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• pp.18-31
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• 2020

Cognitive biases can influence human information behaviour and decisions made in information behaviour and use. This study aims to identify the biases involved in some aspects of information behaviour and the role they play in information behaviour and use. Twenty-five semi-structured face-to-face interviews were conducted in an exploratory qualitative study with graduate (MA and PhD) students who were at the stage of their dissertation/thesis research. Eisenberg & Berkowitz Big6^TM Skills for Information Literacy was adopted as a framework for interviews and the analysis was done using grounded theory coding method. The findings revealed the presence of twenty-eight biases in different stages of information behaviour, including availability bias (affects the preference for information seeking strategies), attentional bias (leads to biased attention to some information), anchoring effect (persuades users to anchor in special parts of information), confirmation bias (increases the tendency to use information that supports one's beliefs), and choice-supportive bias (results in confidence in information seeking processes). All stages of information seeking were influenced by some biases. Biases might result in a lack of clarity in defining the information needs, failure in looking for the right information, misinterpretation of information, and might also influence the way information is presented.

• Journal of Microbiology and Biotechnology
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• 제15권6호
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• pp.1377-1383
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• 2005

In a cDNA microarray experiment using Cy3 and Cy5 as labeling agents, particularly for the direct design, cDNAs from some genes incorporate one dye more efficiently than the other, which is referred to as the gene-specific dye bias. Dye-swaps, in which two dyes are switched on replicate arrays, are commonly used to control the gene-specific dye bias. We developed a simple procedure to extract the gene-specific dye bias information from a partial dye swap experiment. We detected gene-specific dye bias by identifying outliers in an X-Y plane, where the X axis represents the average log-ratio from two sets of dye swap pairs and the Y axis exhibits the average log ratio of four forward labeled arrays. We used this information for detecting differentially expressed genes, of which the additionally detected genes were validated by real-time RT-PCR.

• Transactions on Electrical and Electronic Materials
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• 제6권2호
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• pp.57-62
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• 2005

Using intense pulsed ion beam evaporation technique, we have succeeded in the preparation of poly crystalline silicon thin films without impurities on silicon substrate. Good crystallinity and high deposition rate have been achieved without heating the substrate by using lEE. The crystallinity of poly-Si film has been improved with the high density of the ablation plasma. The intense diffraction peaks of poly-Si thin films could be obtained by using the substrate bias system. The crystallinity and the deposition rate of poly-Si thin films were increased by applying (-) bias voltage for the substrate.