Thomas Lau

h-index12
2papers
378citations

2 Papers

2.3TRAug 28, 2019
Reinforcement Learning: Prediction, Control and Value Function Approximation

Haoqian Li, Thomas Lau

With the increasing power of computers and the rapid development of self-learning methodologies such as machine learning and artificial intelligence, the problem of constructing an automatic Financial Trading Systems (FTFs) becomes an increasingly attractive research topic. An intuitive way of developing such a trading algorithm is to use Reinforcement Learning (RL) algorithms, which does not require model-building. In this paper, we dive into the RL algorithms and illustrate the definitions of the reward function, actions and policy functions in details, as well as introducing algorithms that could be applied to FTFs.

4.9MLAug 19, 2019
Gradient Boosting Machine: A Survey

Zhiyuan He, Danchen Lin, Thomas Lau et al.

In this survey, we discuss several different types of gradient boosting algorithms and illustrate their mathematical frameworks in detail: 1. introduction of gradient boosting leads to 2. objective function optimization, 3. loss function estimations, and 4. model constructions. 5. application of boosting in ranking.