• Proceedings of the Korean Institute of Building Construction Conference
• /
• 2020.06a
• /
• pp.105-106
• /
• 2020

Recently, a method of deriving an efficient 2D floor plan has been attracting attention for remodeling of old buildings with inaccurate 2D floor plans, and thus, studies on reverse engineering of indoor Point Cloud Date(PCD) have been actively conducted. However, in the case of a indoor PCD, due to interference of indoor objects, available equipment is limited to Mobile Laser Scanner(MLS), which causes a efficiency reduction of data processing. Therefore, this study proposes an automatic derivation algorithm for 2D floor plan of indoor PCD based on pixelation. First, the scanned indoor PCD is projected on the XY coordinate plane. Second, a point distribution of each pixel in the projected PCD is derived using a pixelation. Lastly, 2 floor plan derivation based on the algorithm is performed.

• Journal of the Korea Convergence Society
• /
• v.11 no.10
• /
• pp.207-212
• /
• 2020

This study analyzes the Soju(Korean alcohol) advertisement image, which is relatively easy to interpret subjectively, among sexual appeal advertisements that stimulate consumers' curiosity, where the image is verified through AOI (area of interest) 3 areas (face, body, product), and eye-tracking, one of the psychophysiological indicators. The result of the analysis reveals that visual attention, the interest in the advertising model, was higher in the face than in the body shape. Contrary to the prediction that men would be more interested in body shape than women, both men and women showed higher interest in the face than a body. Besides, it was derived that recognition and recollection of the product were not significant. This study is significant in terms of examining the pattern of visual attention such as the gaze point and gaze time of male and female consumers on sexual appeal advertisements. In further, the study looks forward to bringing a positive influence to the soju advertisement image by presenting the expression method that the soju advertisement image should pursue as well as the appropriate marketing direction.

• Journal of the Korean Society of Clothing and Textiles
• /
• v.27 no.1
• /
• pp.111-122
• /
• 2003

The purpose of this study is to investigate the effect of clothing coloring and type of pants/skirt as clothing cues on impression of college female students. The experimental materials developed for this study are a set of stimuli and response scales. Thirty two color pictures of various combinations of colors for shirt, and colors and type of pants/skirt were manipulated on computer drawing. For visual evaluation of women's casual wears about colors and type, 7-point scales were designed. The subjects consist of 192 female and male undergraduate students in Chinju city. The results of this study can be summaried as follow: As analyzing the impression of female figure by the color of shirt and the color and type of pants/skirt, five factors including appearance valuation, concentration of attention, clearness, stability, and activity were found to be important. Color of shirt have significant effects on appearance valuation, concentration of attention, clearness, stability, and activity. Color of pants and shirt also have significant effects on all five factors. Especially, they strongest predictors for stability and activity. Type of pants/skirt significantly effects on concentration of attention and activity. In the effects of interactions between each variable, the combination of pants colors and type of pants/skirt had significant effects on appearance valuation, stability factors. Also shirt and pants colors had an significant effects on appearance valuation, stability, and activity. But in the impression formation of concentration of attention and clearness, only the combination of shirt colors and pants forms was more significant.

• KSII Transactions on Internet and Information Systems (TIIS)
• /
• v.18 no.2
• /
• pp.456-477
• /
• 2024

With information technology's rapid development, the Internet faces serious security problems. Studies have shown that malware has become a primary means of attacking the Internet. Therefore, adversarial samples have become a vital breakthrough point for studying malware. By studying adversarial samples, we can gain insights into the behavior and characteristics of malware, evaluate the performance of existing detectors in the face of deceptive samples, and help to discover vulnerabilities and improve detection methods for better performance. However, existing adversarial sample generation methods still need help regarding escape effectiveness and mobility. For instance, researchers have attempted to incorporate perturbation methods like Fast Gradient Sign Method (FGSM), Projected Gradient Descent (PGD), and others into adversarial samples to obfuscate detectors. However, these methods are only effective in specific environments and yield limited evasion effectiveness. To solve the above problems, this paper proposes a malware adversarial sample generation method (PixGAN) based on the pixel attention mechanism, which aims to improve adversarial samples' escape effect and mobility. The method transforms malware into grey-scale images and introduces the pixel attention mechanism in the Deep Convolution Generative Adversarial Networks (DCGAN) model to weigh the critical pixels in the grey-scale map, which improves the modeling ability of the generator and discriminator, thus enhancing the escape effect and mobility of the adversarial samples. The escape rate (ASR) is used as an evaluation index of the quality of the adversarial samples. The experimental results show that the adversarial samples generated by PixGAN achieve escape rates of 97%, 94%, 35%, 39%, and 43% on the Random Forest (RF), Support Vector Machine (SVM), Convolutional Neural Network (CNN), Convolutional Neural Network and Recurrent Neural Network (CNN_RNN), and Convolutional Neural Network and Long Short Term Memory (CNN_LSTM) algorithmic detectors, respectively.

• The Magazine of the IEIE
• /
• v.31 no.1
• /
• pp.58-72
• /
• 2004

Smart sensors and biochip technologies have received a great deal of attention in recent years not only because of the enormous potential markets in the healthcare expenditures but more importantly because of its great impact on the quality of human life in the future. Collaborative research among BT (Bio Technologies), IT (Information Technologies) and NT (Nano Technologies) will bring us a new paradigm of the healthcare services. Examples include disease prediction based on the genetic tests, personal medicines, point-of-care analysis, rapid and sensitive infectious disease diagnostics, environmental monitoring for chemical or biological warfares, intelligent drug delivery systems etc. In this report, recent accomplishment in the research area on biosensors, DNA chips, Protein Chips and Lab-on-a-chips are reviewed.

• Korean Security Journal
• /
• no.8
• /
• pp.127-153
• /
• 2004

On Study is to presidential security service in Korea and U.S Secret Service. U.S Secret Service give emphasis a right of a people. This become the center of attention that Special Agent enforced comprehensive authority with Law enforcement, intelligence, security. Presidential security service in Korea emphasis a threat of North Korea in the past. but recent circumstances changed a threat of terrorism based Islamic Fundamentalism and emphasis a right of a people. You can't overemphasize the value of this point.

• Proceedings of the IEEK Conference
• /
• 2008.06a
• /
• pp.215-216
• /
• 2008

Ultra wideband (UWB) system is one of the promising solutions for future short-range communication which has recently received a great attention by many researchers. In this paper, we proposed 128-point low power FFT structure based on the memory for UWB systems. The proposed structure can improve implementation area and power consumption efficiency as it consists of one of the butterfly PE and a little memory.

• Language and Information
• /
• v.14 no.2
• /
• pp.17-32
• /
• 2010

Distributivity has been one of the central topics in formal semantics. However, no due attention has been paid to embedded distributivity that very frequently occurs in natural languages. In this paper, I propose a formal analysis for embedded distributivity. In analyzing embedded distributivity, I employ no complicated mechanisms but pluralization. Since distributivity is reduced to plurality as Landman (2000) argues, employing plural formation is not an ad hoc approach to embedded distributivity. That is, the plural variable inserted in the process of deriving embedded distributivity is motivated in a principled manner since the pluralization occurs inside a pluralization operator. Moreover, I point out that the plural variable made available is not restricted to entities.

• Solar Energy
• /
• v.18 no.3
• /
• pp.71-80
• /
• 1998

In thermal energy storage system, energy collected from many types of heat source is stored in a storage tank and then supply to load for demand. Lately, practical use of thermal energy storage system and attention to essential use of energy have been increased. From this point of view, especially, a study about the energy extraction process from a storage tank is necessary. So in this study, useful rate of hot water and hot water extraction efficiency was analysed respect to dynamic and geometric parameters dominating the hot water extraction process.

• Journal of the Korea Safety Management & Science
• /
• v.3 no.1
• /
• pp.25-34
• /
• 2001

With the help of the Internet, communication with customers and the frequency and speed of the problem solving has improved greatly At this point mayor enterprises are paying much attention to CRM and their related markets are expanding rapidly I'll give a bnef introduction to the CRM system and go Into the problems that should be considered and which phase to emphasize when building this system.