2 papers
cs.DB2026
Concord: A Video Relational Algebra for Cross-Modal Query Optimization
Sultan Muratbek, Charisse Ivana Yeung, Chanwut Kittivorawong +1
Semantic video queries let users embed natural language prompts and use multimodal large language models (MLLMs) to interpret the video. Such queries are increasingly popular for q…
cs.CV2026
Tetris: Tile-level Sampling for Efficient and High-Fidelity Video Object Tracking
Chanwut Kittivorawong, Alena Chao, Charlie Si +1
Track materialization converts raw videos into reusable object tracks that downstream queries can run against without rerunning tracking, but extracting those tracks efficiently an…