• Journal of applied mathematics & informatics
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• 제26권1_2호
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• pp.203-212
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• 2008

Practical stability is a significant practical importance in scientific and engineering problems but less investigated. In this paper, we studied practical stability in swarms system and present new results.

• The Journal of Asian Finance, Economics and Business
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• 제9권4호
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• pp.29-38
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• 2022

The enormous sway of COVID-19 on the international financial market has been felt across the globe. The financial markets of Bangladesh have also been similarly affected by the global epidemic and experienced a significant increase in volatility. To scrutinise the connection between COVID-19 and the Dhaka Stock Exchange (DSE) indices' return and instability, this study uses data of the DSE from February 2014 to September 2021. A comparative examination of the return and instability of the stock indices of the DSE has also been done considering the outbreak of the current COVID-19 situation. After using the GJR-GARCH (1,1) model, this review uncovers that the outbreak of COVID-19 has a statistically positive noteworthy association with the DSE stock indices' instability, which increases the market's volatility. Traders' fear and the rising frequency of COVID-19 reported patients could cause this. Besides, according to this study, COVID-19 shows a substantial positive linkage with stock market returns that increases the market's return. An appealing valuation, lower interest rates in the banking channel, economic rebound following the closure to prevent coronavirus transmission, improved remittance inflows, and a return of export revenues could all have contributed to this outcome. In addition, the findings also reveal that all market indices are in a mean-reverting phase.

• KSII Transactions on Internet and Information Systems (TIIS)
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• 제10권4호
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• pp.1807-1823
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• 2016

Local Binary Pattern (LBP) and its variants have powerful discriminative capabilities but most of them just consider each LBP code independently. In this paper, we propose sub oriented histograms of LBP for smoke detection and image classification. We first extract LBP codes from an image, compute the gradient of LBP codes, and then calculate sub oriented histograms to capture spatial relations of LBP codes. Since an LBP code is just a label without any numerical meaning, we use Hamming distance to estimate the gradient of LBP codes instead of Euclidean distance. We propose to use two coordinates systems to compute two orientations, which are quantized into discrete bins. For each pair of the two discrete orientations, we generate a sub LBP code map from the original LBP code map, and compute sub oriented histograms for all sub LBP code maps. Finally, all the sub oriented histograms are concatenated together to form a robust feature vector, which is input into SVM for training and classifying. Experiments show that our approach not only has better performance than existing methods in smoke detection, but also has good performance in texture classification.

• The Journal of Asian Finance, Economics and Business
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• 제7권6호
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• pp.127-131
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• 2020

In today's financial industry, Fintech (financial technology) has showed its role of an innovation-driving area, which can bring outstanding changes to the traditional financial market. This article will briefly introduce Fintech as well as its development in Vietnam. Besides, the research also provided a survey on experts' opinions on the challenges to the promotion of Fintech application for the modernization of the banking-finance system in Vietnam. The survey results of 40 experts in banking with knowledge of Fintech identify five challenges faced by Fintech companies in Vietnam: (1) legal corridor; (2) infrastructure; (3) Fintech companies; (4) customers; and (5) human resources. From these five challenges/barriers, there are 14 detailed aspects. The results of the expert survey using descriptive statistics show that all five factors are assessed to be low and need to be better addressed in the future. The authors suggest several solutions for further development of Fintech to support the modernization of the banking-finance system in Vietnam: (1) quickly complete the regulatory framework; (2) introduce policies on tax exemption; (3) promote research and application of the benefits of block-chain technology; (4) utilize the abilities of the human resources; and (5) actively promote and popularize knowledge about Fintech.

• 무역학회지
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• 제47권6호
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• pp.269-289
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• 2022

The COVID-19 pandemic has disrupted supply chains across the world. When the pandemic broke out, the disruptions were mainly due to the lockdowns imposed in various countries. The WTO has predicted that the pandemic might cause world trade to decline by 13 to 32 per cent in 2020. This paper will examine the implications of COVID-19 on digital trade, particularly the use of blockchain in the Asia Pacific. The Asia Pacific (particularly Singapore and Hong Kong) is a leader in the use of digital technologies. This paper will thus attempt to draw out lessons from the first movers for the rest of Asia. It will examine the bottlenecks in the application of this technology in the Asia Pacific countries, and the need for regulatory changes in the Asia-Pacific. It will trace the technology's barriers to adoption, both as regards interoperability, and regulatory framework. The advantages of blockchain technology in trade finance are clear; it can promote trade efficiency, mitigate risk and expand trade to other regions. However, earlier efforts to introduce digital technologies have failed. More collaborative efforts are required, so that networks can connect seamlessly on a single technology platform, and meet the demand for trade finance. The COVID-19 pandemic seems to have provided an enabling environment for the intensification of digital efforts, increasing their urgency; should these measures indeed successfully occur, they will improve the resiliency of supply chains across the region.

• 디지털융복합연구
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• 제8권2호
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• pp.189-202
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• 2010

전통적으로 금융기관이 전자금융을 취급하는 과정에서 제기되는 여러 가지 위험을 경감하기 위한 다양한 수단을 가지고 있지만, 인터넷의 활성화로 인해 새로운 전자금융의 위험이 제기되고 있으나 이에 대한 대응방안과 정책수단에 대한 연구는 미미한 실정이다. 인터넷이 사회적으로 광범위하게 확산되고 이용이 활발해짐에 따라 금융기관에서도 전자금융운영시스템을 인터넷중심으로 바꾸고 있다. 이 과정에서 온오프라인 겸영은행의 전자금융이나 인터넷전문금융기관의 전자금융의 경우 인터넷이 지니고 있는 고유한 특성으로 계좌개설에서 제기되는 새로운 위험이나 아웃소싱과정에서 제기되는 위험 등 새로운 위험이 제기되고 있다. 이러한 위험에 대응하기 위해서는 전자금융위험관리방식을 체계화할 뿐 아니라, 해킹방지, 고객보안강화 등 기술적 물리적 대책도 필요하며 체계적인 아웃소싱위험관리기준의 마련 등 다양한 대응책의 마련이 요구된다.

• 기업가정신과 벤처연구
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• 제20권3호
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• pp.49-68
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• 2017

플랫폼 금융은 데이터 분석과 플랫폼을 이용한 매칭이라는 새로운 자금조달 방식을 제시함으로써 중소기업의 대안금융으로 부상하고 있다. 이 사업의 본질은 빅데이터를 이용한 위험평가와 투자자의 위험-수익 선호(risk-return preference)를 적절히 반영할 수 있는 위험분산 기술을 금융업에 적용한 것이다. 이로써 소상공인을 위한 소액금융, 중소기업의 운전자본(working capital) 조달을 위한 공급망 금융의 형태로 기존 금융의 대안으로 부상하고 있다. 한국의 플랫폼 금융은 이 같은 가능성에도 아직 유치 단계(infant stage)이며, 정책적 지원을 필요로 한다. 이는 다음과 같이 요약할 수 있다. "기관 및 공공 투자참여", 플랫폼 금융의 민간 자금유입(crowd-in)을 위한 정책금융의 씨앗자금(seed money) 공급, "수용적 규제체계", 영국의 샌드박스와 같이 새로운 사업에 대한 한시적 규제 유예, "데이터 개방 확대", 재량적인 데이터 공유의 허용, "대안투자 수단의 보급", 저금리시대의 대안투자 수단으로서 플랫폼 금융 육성.

• The Journal of Asian Finance, Economics and Business
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• 제8권4호
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• pp.819-826
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• 2021

This study aims to determine the impact of product consumption strategy and financial autonomy on the competitiveness of technology firms in Vietnam. This study employs panel data of 27 technology firms collected from listed financial statements of the business for the period (2010-2019). The study also uses some indicators reflecting the macroeconomic situation of the economy collected from the World Bank. Instead of Exploratory Factor Analysis which has been used before, the study uses the feasible generalized least squares (FGLS) estimation as the main method. The FGLS corrects the variance changes and autocorrelation on the dataset of these Vietnamese technology firms. The results reveal that the strategy of product consumption and financial autonomy positively affect the competitiveness of technology firms. These are also two core factors of the technology industry, which have a strong impact on the increase in the competitiveness of firms. The findings of this study suggest that technology firms do not need to invest in many long-term assets, but mainly in short-term assets in order to quickly respond to the strategies for consuming new technology products of the business. In addition, the increase in Gross Domestic Product per capita also positively affects the increase in the competitiveness of technology firms.

• The Journal of Asian Finance, Economics and Business
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• 제7권12호
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• pp.693-702
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• 2020

The present study aims to investigate the impact of tourism growth on human development in Indian economy. For this purpose, the study uses annual data from 1980 to 2018 and utilizes two proxies for tourism growth - tourism receipt and tourist arrivals - and uses human development index calculated by UNDP. The study uses control variables such as government expenditure and trade openness. The study employs auto regressive distributed lag (ARDL) approach to investigate the cointegrating relationship among the variables in the model. Further, the study also explores the causal nexus between tourism sector and human development by using the Toda-Yamamoto Granger non-causality test. The result of ARDL bounds test reveals the existence of cointegrating relationship between human development indicators, government expenditure, trade openness, and tourism sector growth. The cointegating coefficient confirms a positive and significant relationship between tourism sector growth and human development in India. The causality result suggests that economic growth and tourism have a positive impact while trade openness has a negative impact on human development in India. The major findings of this study suggest that tourism plays an important role in the socio-economic development of Indian economy in recent years and the country must develop this sector to achieve sustainable development.

• Journal of Information Processing Systems
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• 제16권4호
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• pp.935-958
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• 2020

The core value of finance is credit. It can be said that without credit, there can be no finance. The distributed structure of the blockchain and the low-cost trust-building mechanism based on mathematical algorithms provide a new solution and path for solving and optimizing related problems in the financial field. The blockchain technology is applied in the development of the financial industry through consensus mechanisms, smart contracts, and distributed networks. In this research, a comprehensive survey of the blockchain technology is proposed in the development of financial services including equity crowdfunding and credit investigations in inclusive finance, cross-border remittance, Internet financial payment, P2P lending, supply chains finance, and the application of blockchain in the field of anti-money laundering. This paper discusses the role of blockchain in solutions to different issues in the financial field. It also discusses the architectures in different financial service application scenarios from the perspective of the financial trust mechanism and the perspective of the technology and rule change of blockchain participation in financial innovation. Finally, the problems and challenges of blockchain in financial services are discussed, and corresponding solutions are proposed.