Economic globalization and financial market integration have increased fluctuation in financial markets. Investors expect an investment and wealth management product that can maintain the minimum protection when the price decreases, while it brings profits when the market grows. So the portfolio...

Economic globalization and financial market integration have increased fluctuation in financial markets. Investors expect an investment and wealth management product that can maintain the minimum protection when the price decreases, while it brings profits when the market grows. So the portfolio...

Economic globalization and financial market integration have increased fluctuation in financial markets. Investors expect an investment and wealth management product that can maintain the minimum protection when the price decreases, while it brings profits when the market grows. So the portfolio...

Text-based password schemes have inherent security and usability problems, leading to the development of graphical password schemes. However, most of these alternate schemes are vulnerable to spyware attacks. We propose a new scheme, using CAPTCHA (Completely Automated Public Turing tests to...