Supervising the Visible State: Separating Representation from View Selection in Streaming Video

Hugging Face Daily Papers Papers

Summary

This paper introduces Visible-State Supervision (ViSS) and Test-Time Causal View Search (TVS) to separate representation learning from evidence selection in streaming video understanding, achieving state-of-the-art accuracy on StreamingBench and OVO-Bench with far fewer processed frames.

An action seen once and the same action seen three times receive the same action-recognition label, so that supervision does not require a model to count. Answers shared across histories that differ in event order, accumulation, or relations leave those distinctions unconstrained; we call this state under-specification. Visible-State Supervision (ViSS) addresses it by training on source-grounded probes of event identity, order, accumulation, relation change, and answer sufficiency; under the same recent-frame interface it improves OVO-Bench over a strict-matched generic temporal supervision baseline while remaining comparable on StreamingBench, with the largest gain in hallucination detection. Test-Time Causal View Search (TVS) then adapts evidence access while keeping the learned model fixed, expanding from recent frames to sparse event and compact history views on demand. The two interventions separate representation from view selection: supervision particularly benefits hallucination detection and causal reasoning, access particularly benefits event recall and forward reasoning. Together they reach the best reported accuracy among the published systems compared here on StreamingBench and OVO-Bench at a fraction of the processed frames of exhaustive selection, and strict replay shows that most of the remaining gap to a three-view oracle is a correct answer that was later replaced. Streaming accuracy depends on what supervision asks the model to keep, what evidence inference exposes, and whether the model keeps a correct answer once it has one.
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Abstract

Visible-State Supervision and Test-Time Causal View Search improve streaming action recognition by separating representation learning from evidence selection, boosting accuracy with fewer frames.

An action seen once and the same action seen three times receive the same action-recognition label, so that supervision does not require a model to count. Answers shared across histories that differ in event order, accumulation, or relations leave those distinctions unconstrained; we call this state under-specification.Visible-State Supervision(ViSS) addresses it by training on source-grounded probes of event identity, order, accumulation, relation change, and answer sufficiency; under the same recent-frame interface it improvesOVO-Benchover a strict-matched generic temporal supervision baseline while remaining comparable onStreamingBench, with the largest gain inhallucination detection.Test-Time Causal View Search(TVS) then adapts evidence access while keeping the learned model fixed, expanding from recent frames to sparse event and compact history views on demand. The two interventions separate representation from view selection: supervision particularly benefitshallucination detectionandcausal reasoning, access particularly benefitsevent recallandforward reasoning. Together they reach the best reported accuracy among the published systems compared here onStreamingBenchandOVO-Benchat a fraction of the processed frames of exhaustive selection, and strict replay shows that most of the remaining gap to a three-view oracle is a correct answer that was later replaced. Streaming accuracy depends on what supervision asks the model to keep, what evidence inference exposes, and whether the model keeps a correct answer once it has one.

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