• Title/Summary/Keyword: Superior Support

Search Result 445, Processing Time 0.026 seconds

Performance Analysis of Kernel Function for Support Vector Machine (Support Vector Machine에 대한 커널 함수의 성능 분석)

  • Sim, Woo-Sung;Sung, Se-Young;Cheng, Cha-Keon
    • Proceedings of the IEEK Conference
    • /
    • 2009.05a
    • /
    • pp.405-407
    • /
    • 2009
  • SVM(Support Vector Machine) is a classification method which is recently watched in mechanical learning system. Vapnik, Osuna, Platt etc. had suggested methodology in order to solve needed QP(Quadratic Programming) to realize SVM so that have extended application field. SVM find hyperplane which classify into 2 class by converting from input space converter vector to characteristic space vector using Kernel Function. This is very systematic and theoretical more than neural network which is experiential study method. Although SVM has superior generalization characteristic, it depends on Kernel Function. There are three category in the Kernel Function as Polynomial Kernel, RBF(Radial Basis Function) Kernel, Sigmoid Kernel. This paper has analyzed performance of SVM against kernel using virtual data.

  • PDF

A Development of Unknown Intrusion Detection System with SVM (SVM을 통한 미확인 침입탐지 시스템 개발)

  • Kim, Seok-Tae;Han, In-Gyu;Lee, Chang-Yong;Kho, Jeong-Ho;Lee, Do-Won;Oh, Jeong-Min;Bang, Cheol-Soo;Lee, Geuk
    • Convergence Security Journal
    • /
    • v.7 no.4
    • /
    • pp.23-28
    • /
    • 2007
  • In this research, we suggest the unknown intrusion detection system with SVM(Support Vector Machines). At the system, at first, collected training-packets are processed through packet image creating module. And then, it is studied by the SVM module. Finally, the studied SVM module classifies the test-data unsing test-packet-image. This system's stability and efficient characteristic of security is far superior than the existing it.

  • PDF

A Study on the Short-term Load Forecasting using Support Vector Machine (지원벡터머신을 이용한 단기전력 수요예측에 관한 연구)

  • Jo, Nam-Hoon;Song, Kyung-Bin;Roh, Young-Su;Kang, Dae-Seung
    • The Transactions of the Korean Institute of Electrical Engineers A
    • /
    • v.55 no.7
    • /
    • pp.306-312
    • /
    • 2006
  • Support Vector Machine(SVM), of which the foundations have been developed by Vapnik (1995), is gaining popularity thanks to many attractive features and promising empirical performance. In this paper, we propose a new short-term load forecasting technique based on SVM. We discuss the input vector selection of SVM for load forecasting and analyze the prediction performance for various SVM parameters such as kernel function, cost coefficient C, and $\varepsilon$ (the width of 8 $\varepsilon-tube$). The computer simulation shows that the prediction performance of the proposed method is superior to that of the conventional neural networks.

The Effects of Home Country Government Support on International Business Performance: Evidence from Chinese Firms (본국 정부지원이 기업의 국제화 성과에 대한 효과: 중국기업을 대상으로 한 실증적 연구)

  • Zhang, Ruo-Nan;Oh, Han-Mo
    • Asia-Pacific Journal of Business
    • /
    • v.9 no.1
    • /
    • pp.91-106
    • /
    • 2018
  • An appreciable number of Chinese firms have successfully expanded their businesses into foreign economics although they have limited resources. Advocating that home country government supports can mitigate firms' resource-disadvantages in international expansions, we attempted to investigate whether and how the Chinese government's support enables Chinese firms to compete in foreign markets. Based heavily on the knowledge-based theory of the firm and the resource-based theory of the firm, we developed a model that explain and predicts the effects of home-country government-supports on superior financial performance. The model was empirically tested using a accounting dataset regarding Chinese firms' 323 international expansion events from 2008 to 2015. Empirical evidence presents that the Chinese government's support has a positive effect on Chinese firms' international success and that these firms' marketing, technological, and managerial resources positively moderate the effect of the government support on the firms' international success. Nonetheless, because we employed an event-study method, the limitations of the method can be applied to the current research. In addition, because of the empirical context, the results of the research might lack generalizability. We, however, provided an understanding how firms from emerging countries can succeed in international expansions specifically when they have lack of resources for international competition.

  • PDF

Methodology for Computer Security Incident Response Teams into IoT Strategy

  • Bernal, Alejandro Enciso;Monterrubio, Sergio Mauricio Martinez;Fuente, Javier Parra;Crespo, Ruben Gonzalez;Verdu, Elena
    • KSII Transactions on Internet and Information Systems (TIIS)
    • /
    • v.15 no.5
    • /
    • pp.1909-1928
    • /
    • 2021
  • At present, the Colombian government shares information on threats or vulnerabilities in the area of cybersecurity and cyberdefense, from other government agencies or departments, on an ad-hoc basis but not in real time, with the surveillance entities of the Government of the Republic of Colombia such as the Joint Command of Cybernetic Operations (CCOCI) and the Cybernetic Emergencies Response Team of Colombia (ColCERT). This research presents the MS-CSIRT (Management System Computer Security Incident Response Teams) methodology, that is used to unify the guidelines of a CSIRT towards a joint communication command in cybersecurity for the surveillance of Information Technology (IT), Technological Operations (TO), Internet Connection Sharing (ICS) or Internet of Things (IoT) infrastructures. This methodology evaluates the level of maturity, by means of a roadmap, to establish a CSIRT as a reference framework for government entities and as a guide for the areas of information security, IT and TO to strengthen the growth of the industry 4.0. This allows the organizations to draw a line of cybersecurity policy with scope, objectives, controls, metrics, procedures and use cases for the correct coordination between ColCERT and CCOCI, as support entities in cybersecurity, and the different companies (ICS, IoT, gas and energy, mining, maritime, agro-industrial, among others) or government agencies that use this methodology.

Adjustment of the Appropriate Cost Support Rate for Measuring the Working Environment (작업환경측정 적정 비용지원율 수준으로의 조정 방안)

  • Park, Ji-Yeon
    • Journal of Korean Society of Occupational and Environmental Hygiene
    • /
    • v.31 no.4
    • /
    • pp.353-366
    • /
    • 2021
  • Objectives: An appropriate level of cost support is being proposed to maximize the participation rate. In addition, as the amount of support is highly concentrated at the level of the limit under the current level of supports, the level of cost support is low when the actual level of cost of measuring the working environment exceeds the limit. This paper describes the adjustment of an appropriate cost support rate. Methods: First, this paper analyzes the current cost support status using data from the KOSHA. Second, an alternative for adjusting the cost support rate is presented in consideration of the incentive aspect. Third, we present simulation results for the average cost support rate, the impact of each alternative on finance, and more. Fourth, the most desirable adjustment method is presented after comparing and analyzing the results of various alternatives. Results: In this paper, we present a new scale model. This model is a mixture of flat-rate, fixed rate, and subside cap. It is expected that the new model will not only facilitate participation in businesses with low measurement costs, but also have the effect of controlling measurement costs for institutions that incur greater costs. It is also expected that setting a cap will have the effect of considering government finances and inducing excessively costly institutions to reduce costs. Thus, the new model is likely to be superior to others. If the fourth plan is applied to new businesses and the fifth plan is applied to sustainable businesses, the average cost support rates will be 87.68 percent and 65.18 percent, respectively, and the needed finances will be 2.5 billion won, 18.8 billion won, and 21.3 billion won in total. Conclusions: It seems most desirable to introduce a new model that combines flat-rate, fixed-rate, and subsidy cap systems and achieve an appropriate cost support rate through this model.

A Study of Economic Value Added Disclosures in the Annual Reports: Is EVA a Superior Measure of Corporate Performance?

  • Bhasin, Madan Lal
    • East Asian Journal of Business Economics (EAJBE)
    • /
    • v.5 no.1
    • /
    • pp.10-26
    • /
    • 2017
  • This paper explains the concept of Economic Value Added (EVA) that is gaining popularity in India. We also examine whether EVA is a superior performance measure, both for corporate disclosure and for internal governance. Of late, companies in India have started focusing on shareholders wealth creation by adopting value-based models for measuring shareholder value that helps to align managerial decision-making with the firm preferences. In recent years, the EVA framework is gradually replacing the 'traditional' measures of financial performance on account of its robustness and its immunity from 'creative' accounting. Even though some leading Indian companies have already joined the band wagon of their American counterparts in adapting the EVA-based corporate performance systems, many other are hesitating as there is no strong evidence that the EVA system works in India. Till now, EVA disclosures are "not mandatory for the Indian companies." Also, we examine the value-creation strategies of selected Indian companies by analyzing whether EVA better represents the market-value of these companies in comparison to conventional performance measures. The study indicates that "there is no strong evidence to support Stern Stewart's claim that EVA is superior to the traditional performance measures in its association with MVA." As part of this study, we have also extensively surveyed the EVA disclosures in the Annual Reports made by the same sample group of 500 corporations from India.

Exploration and Development of SERVQUAL

  • Kim, Yong-Pil;Kim, Kye-Wan;Yun, Deok-Gyun
    • International Journal of Quality Innovation
    • /
    • v.4 no.1
    • /
    • pp.116-130
    • /
    • 2003
  • The gap-based SERVQUAL model is a popular service quality determinant due to its superior diagnostic capacity over alternative explanatory frameworks. However, some researchers criticize the performance of the SERVQUAL model and propose alternative service Quality measurement constructs. Nevertheless, it is argued that the superior diagnostic capacity of SERVQUAL is its key strength; and that any criticism made of it when making comparison with alternative models does not reflect the differing nature of scales of statistical analysis. Arguably, the only limitation of a gap-based model is misinterpretation of customers' evaluation and perception of a service. In this research, the gap score is transformed into a ratio score. Also, empirical tests and implications are presented to support this alternative contribution to the body of knowledge.

A Study on the Characteristics of Residential Location by Age Groupings in Daegu Metropolitan (연령층별로 본 대구시 주거지 입지 특성에 관한 연구)

  • 윤창훈;김철수
    • Journal of the Korean housing association
    • /
    • v.14 no.4
    • /
    • pp.49-56
    • /
    • 2003
  • The object of this study is to analyze the influential factors of characteristics of residential locations by age, and to offer a groundwork that can be utilized to direct setting of residential development and housing policies. The main findings are drawn as follows: First, it determines the age groupings which can describe the distribution pattern of residential location, which is broken down into two social subgroups - the older group aged 50 and over, and the younger group, being our educational target. Second, actuality of our education is to influence residential location. Third, four groups that can describe residential location are abstracted. Fourth, the prime of manhood and old age prime of life have been superior within inner zone, while middle age and those who are obliged to support the older group have been superior around the outer zone.

A portal quadrad with triple hepatic arteries

  • Claire E Stoudemire;Caitlin N Sachsenmeier;Brittney L Link;Faith M Klein;Randy Kulesza
    • Anatomy and Cell Biology
    • /
    • v.56 no.2
    • /
    • pp.276-279
    • /
    • 2023
  • The arterial support of the liver is most commonly from the celiac trunk via the proper hepatic artery (PHA). The PHA divides into left and right branches: the right hepatic artery (RHA) supplies the right and caudate lobes while the left hepatic artery (LHA) supplies the left and quadrate lobes. Aberrant hepatic arteries are relatively common, and the most frequent contributors are the superior mesenteric artery and left gastric artery. Herein we present findings from postmortem dissection of an abdominal cavity that revealed a rare combination of reported variations. Specifically, this subject had three extrahepatic arteries - a replaced LHA (rLHA), a PHA, and a replaced RHA (rRHA). The rLHA originated from the left gastric and the rRHA originated from the superior mesenteric artery. Knowledge of these variations is important for surgical and radiological procedures to avoid complications during treatment and improve patient outcomes.