说明：  在本文中，我们提出了一种TF算法，该算法采用多对阈值来确定股票市场时机。 通过粒子群优化（PSO）和模拟退火（SA）获得阈值的最优值。
(In this paper, we propose a TF algorithm which employsmultiple pairs of thresholds to determine the stock market timing. The optimal values of thresholds areobtained by particle swarm optimization (PSO) and simulated annealing (SA).)