2 papers
cs.IR2023
Pseudo Session-Based Recommendation with Hierarchical Embedding and Session Attributes
Yuta Sumiya, Ryusei Numata, Satoshi Takahashi
Recently, electronic commerce (EC) websites have been unable to provide an identification number (user ID) for each transaction data entry because of privacy issues. Because most r…
cs.CC2018
A 4-Approximation Algorithm for k-Prize Collecting Steiner Tree Problems
Yusa Matsuda, Satoshi Takahashi
This paper studies a 4-approximation algorithm for k-prize collecting Steiner tree problems. This problem generalizes both k-minimum spanning tree problems and prize collecting Ste…