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This article presents a comprehensive multi-modal video understanding system for AIGC video generation, detailing technical architecture, GCN-based semi-supervised learning, and practical applications across automotive content scenarios.
Youku’s new text‑video alignment system automatically generates short video summaries by extracting multimodal video and linguistic features, matching sentences to clips through embedding and tag‑level models, and enabling AI‑driven auto‑editing that cuts production time from days to minutes.
Alibaba’s Youku video search platform combines six-layer architecture—data extraction, technology integration, recall, relevance, ranking, and intent understanding—leveraging CV, NLP, knowledge graphs, and multi‑modal cues such as face, OCR, and audio recognition to overcome title‑mismatch, entity, and semantic challenges and deliver precise, diverse video retrieval.
The paper proposes a video recommendation framework that combines recall and ranking modules, using a multi‑modal topic clustering approach—integrating audio, visual, and textual features via NeXtVLAD, PCA, and K‑Means—to generate unified video representations, improve candidate selection, and boost click‑through and viewing time, while addressing cold‑start and semantic relevance challenges.