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Secure Biometric Hashing by Random Fusion of Global and Local Features
Ou, Yang,Rhee, Kyung-Hyune Korea Multimedia Society 2010 멀티미디어학회논문지 Vol.13 No.6
In this paper, we present a secure biometric hashing scheme for face recognition by random fusion of global and local features. The Fourier-Mellin transform and Radon transform are adopted respectively to form specialized representation of global and local features, due to their invariance to geometric operations. The final biometric hash is securely generated by random weighting sum of both feature sets. A fourfold key is involved in our algorithm to ensure the security and privacy of biometric templates. The proposed biometric hash can be revocable and replaced by using a new key. Moreover, the attacker cannot obtain any information about the original biometric template without knowing the secret key. The experimental results confirm that our scheme has a satisfactory accuracy performance in terms of EER.
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A Hybrid Strategy for Fine-Grained Sentiment of Microblog
Ouyang Chunping,Luo Lingyun,Zhang Shuqing,Yang Xiaohua 보안공학연구지원센터 2014 International Journal of Database Theory and Appli Vol.7 No.6
Currently, most sentiment analysis of microblog has been focused on coarse-grained sentiment analysis, but fine-grained sentiment is better for reflecting the opinion of the public when they are facing the social focus. Therefore, a hybrid strategy which is a combination of Naïve Bayesian and two-layer CRFs is put forward, which has been applied to the fine-grained sentiment analysis of Chinese microblog. First, microblog is classified into two types: sentiment and non-sentiment by using Naïve Bayesian classification algorithm. And then the first-layer CRFs model is built for the topic emotional sentence. Finally CRFs algorithm is used again to do multi-classification to assign a specific sentiment category. Experimental results show that a good result in sentiment identification based on the combination of Naïve Bayesian and CRFs, and also show the advantage of the combination of Naïve Bayesian and CRFs interrelated with emotional sentence extraction based on CRFs.
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Ouyang, Jun-Jie,He, Wen-Jing,Zheng, Kai-Xin,Chen, Geng-Zhen Asian Pacific Journal of Cancer Prevention 2016 Asian Pacific journal of cancer prevention Vol.17 No.1
Background: To assess the effect of an information leaflet on the level of Chinese youth's knowledge about hepatitis B and hepatocellular carcinoma (HCC), the most common type of primary liver cancer (PLC). Materials and Methods: A total of 500 students, from two universities in the Chaoshan area of China, were randomly divided into an intervention group of 280 participants and a control group of 220. Baseline knowledge of HCC and hepatitis B was evaluated by questionnaire interview. Subsequently, only the intervention group was given an information leaflet of HCC and hepatitis B. Three months later, the two groups were contacted for a second interview. Changes in knowledge from baseline of HCC and hepatitis B were compared between the two groups. Results: There was no statistically significant difference in mean PRE-questionnaire scores between the intervention and control groups. However, the mean POST-questionnaire score was significantly higher in the intervention group after the intervention. The leaflet had the greatest effect on the participants' questionnaire score, and raised their level of knowledge about HCC and hepatitis B. Conclusions: The information leaflet intervention is significantly effective in improving the knowledge of HCC and hepatitis B among the youth.
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An interval approach to robust design with parameter uncertainty
Ouyang, Linhan,Ma, Yizhong,Byun, Jai-Hyun,Wang, Jianjun,Tu, Yiliu Taylor Francis 2016 INTERNATIONAL JOURNAL OF PRODUCTION RESEARCH - Vol.54 No.11
<P>In robust design, it is common to estimate empirical models that relate an output response variable to controllable input variables and uncontrollable noise variables from experimental data. However, when determining the optimal input settings that minimise output variability, parameter uncertainties in noise factors and response models are typically neglected. This article presents an interval robust design approach that takes parameter uncertainties into account through the confidence regions for these unknown parameters. To avoid obtaining an overly conservative design, the worst and best cases of mean squared error are both adopted to build an optimisation approach. The midpoint and radius of the interval are used to measure the location and dispersion performances, respectively. Meanwhile, a data-driven method is applied to obtain the relative weights of the location and dispersion performances in the optimisation approach. A simulation example and a case study using automobile manufacturing data from the dimensional tolerance design process are used to demonstrate the effectiveness of the proposed approach. The proposed approach of considering both uncertainties is shown to perform better than other approaches.</P>
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Ouyang, Huei-Tau,Chen, Kue-Hong,Tsai, Chi-Ming The Society of Naval Architects of Korea 2015 International Journal of Naval Architecture and Oc Vol.7 No.6
The water wave characteristics of Bragg reflections from a train of fixed floating pontoon breakwaters was studied numerically. A numerical model of boundary discretization type was developed to calculate the wave field. The model was verified by comparing to analytical data in literature and good agreements were achieved. Series of parametric studies were conducted systematically to investigate the dependence of the reflected coefficients by the Bragg scattering on the design variables, including the spacing between the breakwaters, the total number of installed breakwaters, the draft and width do the breakwater, and wave length. Certain wave characteristics of the Bragg reflections were observed and discussed in details which might be of help for practical engineering applications in shoreline protection from incident waves.
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( Ouyang Fang-lan ) 대구한의대학교 제한동의학술원 2021 제한동의학술원논문집 Vol.19 No.1
In this paper, we analyze the contents of the six Yang meridians in the Mawangdui medical textiles, the 『Zú Bì ShíYī MàiJiū Jīng(足臂十一脈灸經)』, the 『YīnYáng ShíYī MàiJiū Jīng(陰陽十一脈灸經)』, the Zhangjiashan medical text 『Hàn Jiǎn Mài Shū(张家山汉简 『脈書』)』, the Shuangbao Mountain lacquer figure, the Laoguan Mountain lacquer figure, and the 『Shí èr Mài(十二脈)』 of the Laoguan Mountain medical text, which have been excavated since the 1970s. Through comparison, the meridians carved with white lines on the Lao Guan Shan lacquer figure are different from the “twelve meridians” in the 『Huáng Dì Nèi Jīng(黃帝內經)』’s Classic of Internal Medicine, and it is believed that the formation process of meridians developed from the “eleven meridians system” to the “twelve meridians system” It is believed that the development of the meridians from the “eleven-meridians system” to the “twelve-meridians system” is a result of the inconsistent naming of the early meridians, the irregular number of meridians, and the development of the meridians from a linear one-way flow to the uninterrupted circular movement of the 『Huáng Dì Nèi Jīng(黃帝內經)』. The “eleven meridians system” of the early meridian theory was not a manifestation of the fact that the meridian theory was not yet well developed, but a result of the influence of the ancient philosophical concepts of the time, “the unity of heaven and figure”, “the six heavens and the five piles of the earth” and “the unity of heaven and figure” thinking. This concept had a significant impact on the formation of the early meridian theory and has been a constant in the development of meridian theory, which can be identified as one of the biggest factors influencing the development of meridian theory. The “Hand Sanyang meridians” has its own characteristics in the naming of the early meridians, and is unstable compared to the development of the naming of the Foot Sanyang meridians. The order of the use of “Dà(大)”, “Tài(泰)” and “Tài(太)” in the naming of the meridians reflects the sequence of the development of the ancient script. The word “(鉅)巨Jù” in 『YīnYáng ShíYī MàiJiū Jīng(陰陽十一脈灸經)means “big” and is a dialect expression used in the Qi-Song region. The order of the meridians named in the meridian literature is recorded first after the foot meridians hand meridians, the foot meridians are longer than the hand meridians circulation route, the circulation distribution is more extensive, the main disease is more, the foot meridians is more important than the hand meridians. The “eleven meridians system” of the Mawangdui medical text is not a manifestation of the imperfect development of the meridian theory. but is influenced by the mathematical concept of “heaven, six and earth, five”, which considers heaven as yang, earth as yin, heaven as six and earth as five. With this concept, eleven meridians were created. The lack of the foot three yin meridians in the “ten meridians system” of the Shuangbao Mountain lacquer figure is not a sign of slow development of the foot three yin meridians, but because the foot three yin meridians represent the death wait, which is a sign of death. On the contrary, during the Western Han Dynasty, the imperial nobility prayed for immortality. and believed that the Governor’s Vessel had the function of nourishing health and promoting longevity, so a Governor’s Vessel was added. The development of the twelve channels of the 『Líng Shū·Jīng Mài(靈樞·經脈)』 was influenced by the ancient “Twelve of Heaven”, which changed the number of channels from 11 to 12. It can be seen that the development of meridian theory has not been smooth and has been influenced by the impact of ancient philosophical views and cultures and the different doctrines of different medical schools. This is a reflection of the development of the meridians and the incorporation of the superficial parts of the body into the route of the meridians, which is probably due to the need for the Lao Guanshan lacquer figure to be used as a teaching tool and to provide a more intuitive explanation. The development of the meridians from independent, straight lines to circular channels of movement “like rings without end” was influenced by the concept of “the unity of heaven and figure”, believing that the figure meridians should run uninterruptedly, like the sun and moon, in accordance with the laws of nature. The change in the direction of the flow of the meridians led to the confusion of the “branch” and “straight” routes of the foot-sun meridian of the 『Líng Shū·Jīng Mài(靈樞·經脈)』. There are only a few branches in the Mawangdui medical text, but there are 23 meridians in the 『Líng Shū·Jīng Mài(靈樞·經脈)』, which shows the rapid development of meridian branches. The function of this branch of the foot sun “into the anus” of the Laoguanshan lacquer figure is shown as the relationship between the circulation distribution of the meridians and the disease symptoms. By the time the 『Líng Shū·Jīng Mài(靈樞·經脈)』 became available with the proliferation of branches, the clinical significance was less evident, and it is presumed that the branches existed at this time more to supplement the significance of the twelve meridian theory. The question of the origin of the meridians and acupuncture points has been the focus of academic debate, and the excavation of the Laoguanshan lacquer figure has provided new evidence to resolve this academic question. The “Twelve meridians” represented by the white lines of the Laoguanshan lacquer figure are important for studying the development of the “Eleven meridians” in Mawangdui to the “Twelve meridians” of the 『Líng Shū·Jīng Mài(靈樞·經脈)』. This transitional stage in the development of early meridian theory is of great significance, and the Laoguanshan lacquer figure can fill the theoretical gap in this stage.
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( Ouyang Ping ),( Sun Mao ),( He Xuewen ),( Wang Kaiyu ),( Yin Zhongqiong ),( Fu Hualin ),( Li Yinglun ),( Geng Yi ),( Shu Gang ),( He Changliang ),( Liang Xiaoxia ),( Lai Weiming ),( Li Lixia ),( Zou 한국미생물 · 생명공학회 2017 Journal of microbiology and biotechnology Vol.27 No.1
Staphylococcus aureus (S. aureus) is a common gram-positive bacterium that causes serious infections in humans and animals. With the continuous emergence of methicillin-resistant S. aureus (MRSA) strains, antibiotics have limited efficacy in treating MRSA infections. Accordingly, novel agents that act on new targets are desperately needed to combat these infections. S. aureus alpha-hemolysin plays an indispensable role in its pathogenicity. In this study, we demonstrate that sclareol, a fragrant chemical compound found in clary sage, can prominently decrease alpha-hemolysin secretion in S. aureus strain USA300 at sub-inhibitory concentrations. Hemolysis assays, western-blotting, and RT-PCR were used to detect the production of alpha-hemolysin in the culture supernatant. When USA300 was co-cultured with A549 epithelial cells, sclareol could protect the A549 cells at a final concentration of 8 μg/ml. The protective capability of sclareol against the USA300-mediated injury of A549 cells was further shown by cytotoxicity assays and live/dead analysis. In conclusion, sclareol was shown to inhibit the production of S. aureus alpha-hemolysin. Sclareol has potential for development as a new agent to treat S. aureus infections.
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