This two-volume set CCIS 2414 and CCIS 2415 constitutes the refereed proceedings of the 29th International Conference on Technologies and Applications of Artificial Intelligence, TAAI 2024 held in Hsinchu, Taiwan, during December 6-7, 2024. The 49 full papers presented in these two volumes were carefully reviewed and selected from 147 submissions. The papers are organized in the following topical sections: Part I: Data Robustness; Image Analysis; Knowledge Representation and Management; Games; Machine Learning and Applications; AI Studies; JSAI Special Session 1. Part II: JSAI Special Session 2; Japan Special Session 3; International Track Special Session.