This book constitutes the refereed post-conference proceedings of the 11th and the 12th International Conference on Big Data Technologies and Applications, BDTA 2021 and BDTA 2022, held in December 2021 and 2022. Due to COVID-19 pandemic both conferences were held virtually. The 23 full papers of BDTA 2021 and BDTA 2022 were selected from 61 submissions and present all big data technologies, such as big data collection and storage, big data management and retrieval, big data mining approaches, big data visualization, and new domains and novel applications related to these technologies.

Soccer is one of the most popular team sports all over the world. Most sports games are naturally organized into successive and alternating plays of offense and defense, cummulating at events such as goals or attacks. Soccer video matches always attract a major sports audience. Recently, the amount of digitized video content has been increasing rapidly, and watching a soccer match needs a lot of time. Many sports fans prefer to watch a summary of soccer video matches. The summarization process is an essential part of several applications such as Information retrieval, video retrieval, etc. Soccer video summarization and analysis is concerned with the extraction of valuable semantics by efficient and effective processing of visual, audio, and text information.