TL;DR Can an AI watch a video stream and help before you ask? This paper tackles implicit and changing user intent with a benchmark, a model and an agent harness.
Title: StreamVibe: Proactive Video Agents for Evolving User Intent
URL:
Key points
・🎯 Intent split into three levels: explicit, implicit, dynamic
・📚 StreamVibe-Bench: 4,100 samples, 20,546 help points, 183.4 hours of video
・🧠 StreamVibe-VL: adaptive SFT, then GRPO with trajectory-level rewards
・🔇 RL cuts false triggers: explicit FPR 2.02 vs. 12.75 for ViSpeak
・🗂 The Harness tracks active intents and progress, helping most on dynamic intents
・📈 Dynamic Pointwise F1 rises from 58.70 (SFT) to 66.34 (RL)
・⚠️ Long interactions remain hard: dynamic Trajectory C-F1 is only 8.91
The hard part of proactivity is knowing when to stay quiet, not just when to speak.
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VideoAgents# #
VLM#