5 papers
Characteristics of networks generated by kernel growing neural gas
Kazuhisa Fujita
This research aims to develop kernel GNG, a kernelized version of the growing neural gas (GNG) algorithm, and to investigate the features of the networks generated by the kernel GN…
An efficient and straightforward online quantization method for a data stream through remove-birth updating
Kazuhisa Fujita
The growth of network-connected devices has led to an exponential increase in data generation, creating significant challenges for efficient data analysis. This data is generated c…
AlphaDDA: Strategies for Adjusting the Playing Strength of a Fully Trained AlphaZero System to a Suitable Human Training Partner
Kazuhisa Fujita
Artificial intelligence (AI) has achieved superhuman performance in board games such as Go, chess, and Othello (Reversi). In other words, the AI system surpasses the level of a str…
Estimation of the number of clusters on d-dimensional sphere
Kazuhisa Fujita
Spherical data is distributed on the sphere. The data appears in various fields such as meteorology, biology, and natural language processing. However, a method for analysis of sph…
Approximate spectral clustering using both reference vectors and topology of the network generated by growing neural gas
Kazuhisa Fujita
Spectral clustering (SC) is one of the most popular clustering methods and often outperforms traditional clustering methods. SC uses the eigenvectors of a Laplacian matrix calculat…