Researches
Research Areas
![](/images/artificial_intelligence.png)
![](images/data_mining.png)
![](images/machine_learning.png)
![](images/bioinformatics.png)
Research Topics
![](images/reinforcement_learning.png)
![](images/text_mining.png)
![](images/financial_data_mining.png)
![](images/bio_data_mining.png)
Joint Research Projects
- The Bank of Tokyo-Mitsubishi UFJ, Ltd.
- Nomura Securities Co., Ltd.
- The University of Tokyo
Research Topics
Artificial Intelligence
![](images/artificial_intelligence.png)
AI (artificial intelligence) is the science and engineering of making intelligent machines.
Data Mining
![](images/data_mining.png)
Data mining is the process of discovering interesting patterns or knowledge from data.
Machine Learning
![](images/machine_learning.png)
Machine learning is a field of AI research focusing on getting computers (machines) to learn.
Bioinformatics
![](images/bioinformatics.png)
Bioinformatics is a scientific discipline focusing on biological information.
Research Topics
Reinforcement Learning
![](images/reinforcement_learning.png)
Reinforcement learning is a method to learn actions based on trial and error.
Our research topics on reinforcement learning include:
- Compound reinforcement learning that is a new framework of reinforcement learning to maximize the compound returns,
- Learning trage strategies in financial markets using reinforcement learning, and
- OnPS (on-line profit-sharing) algorithm that updates parameters in each step and can be implemented with a bounded memory size, but is equivalent to ordinary (off-line) profit-sharing.
Text Mining
![](images/text_mining.png)
Text mining is a subfield of data mining focusing on text data.
Our research topics on text mining include:
- Analyzing Band of Japan monthly reports to predict the future interest using coocasion, principal component analysis (PCA), and regression,
- Text categorization for Nikkei newspapers to predict the future markets,
- Information retrieval to find users' reviews from weblogs.
Financial Data Mining
![](images/financial_data_mining.png)
Financial data mining is a subfield of data mining focusing on financial data.
Our research topics on financial data mining include:
- Analyzing trage strategies in financial markets and technical indices used in the strategies using reinforcement learning,
- Predicting the future stock market by categorizing Nikkei newspapers, and
- Predicting the future interest by analyzing Bank of Japan monthly reports using coocation, principal component analysis (PCA), and regression.
Bio Data Mining
![](images/bio_data_mining.png)
Bio data mining is a subfield of data mining focusing on biological data or data mining in bioinformatics.
Our research topics on bio data mining include:
- Homology detection tool for proteins with multiple functional domains,
- Categorizing proteins into folds from the primary structures using inductive logic programming (ILP),
- Recommending similar mutants using association rule mining from purchase records.