ADEPT: An Entropy-Driven Dual-Strategy Agent for Interactive Video Retrieval
Pith reviewed 2026-06-30 23:17 UTC · model grok-4.3
The pith
ADEPT uses entropy from the retrieval state to decide whether to ask the user or refine the query internally, closing the intent-query gap in video search.
A machine-rendered reading of the paper's core claim, the machinery that carries it, and where it could break.
Core claim
ADEPT pioneers an entropy-driven decision engine to efficiently guide dialogue by dynamically selecting between ASK and REFINE strategies. The engine computes entropy from the retrieval state and uses the value to pick the more effective action without any training or domain tuning. This produces an efficient and interpretable interactive strategy that sets a new performance benchmark on two challenging video retrieval datasets.
What carries the argument
The entropy-driven decision engine that computes an entropy value from the current retrieval state and uses it to select between the ASK strategy (query the user) and the REFINE strategy (adjust the query internally).
If this is right
- The dual ASK-REFINE choice improves results over any single fixed strategy on the tested datasets.
- The method requires no training data or parameter tuning to reach its reported gains.
- The entropy signal supplies an interpretable reason for each strategy switch during a session.
- Performance gains hold against both non-interactive baselines and existing Video-LLM approaches.
Where Pith is reading between the lines
- The same entropy switch could be tested in image or text retrieval sessions where initial queries are also ambiguous.
- Integrating the engine into existing search interfaces would let systems avoid unnecessary user questions when internal refinement is likely to suffice.
- Real-user logs could check whether the entropy-based choices align with what people actually prefer when given the option to answer or not.
- If the entropy signal proves stable across datasets, it could serve as a lightweight alternative to learned policy models in other dialogue agents.
Load-bearing premise
An entropy value computed from the retrieval state can reliably indicate whether asking the user or refining internally will produce better results.
What would settle it
A controlled test set where the entropy threshold consistently selects the worse of the two strategies and overall retrieval accuracy drops compared with always using one fixed strategy.
read the original abstract
This research aims to solve the challenge of video retrieval from massive datasets, caused by ambiguous user queries. Prevailing single-round retrieval paradigms face a performance bottleneck, as they lack effective feedback mechanisms to handle complex search intentions. The root cause is the "Intent-Query Gap", where users' intent cannot be captured by a simple text query. To solve this, we propose the ADEPT framework: a training-free agent that pioneers an entropy-driven decision engine to efficiently guide dialogue by dynamically selecting between ASK and REFINE strategies. Experiments on two challenging datasets demonstrate that ADEPT significantly outperforms all non-interactive, heuristic, and Video-LLM baselines. The core contribution of this work is an efficient and interpretable entropy-driven interactive strategy that sets a new performance benchmark for the field of interactive video retrieval.
Editorial analysis
A structured set of objections, weighed in public.
Referee Report
Summary. The paper proposes ADEPT, a training-free agent for interactive video retrieval that uses an entropy-driven decision engine to dynamically select between ASK and REFINE strategies in order to bridge the Intent-Query Gap, claiming significant outperformance over non-interactive, heuristic, and Video-LLM baselines on two challenging datasets.
Significance. A validated entropy-based mechanism that reliably chooses between user interaction and internal refinement without training or tuning could offer an efficient, interpretable advance for handling ambiguous queries in video retrieval. The absence of any experimental details, metrics, datasets, or ablations in the manuscript prevents evaluation of whether this potential is realized.
major comments (1)
- [Abstract] Abstract: the central claim that ADEPT 'significantly outperforms all non-interactive, heuristic, and Video-LLM baselines on two challenging datasets' is asserted with no accompanying metrics, dataset names, experimental protocol, results tables, or ablation studies, so the empirical result cannot be checked against the claim.
Simulated Author's Rebuttal
We thank the referee for their review. The single major comment is addressed below.
read point-by-point responses
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Referee: [Abstract] Abstract: the central claim that ADEPT 'significantly outperforms all non-interactive, heuristic, and Video-LLM baselines on two challenging datasets' is asserted with no accompanying metrics, dataset names, experimental protocol, results tables, or ablation studies, so the empirical result cannot be checked against the claim.
Authors: We agree that the provided manuscript text contains only the abstract and lacks the supporting experimental details, metrics, dataset names, protocol, tables, or ablations. This prevents verification of the claim. We will revise the manuscript to add the missing experimental section, including dataset names, metrics, protocol description, results tables, and ablations. revision: yes
Circularity Check
No significant circularity detected
full rationale
The supplied abstract and description contain no equations, derivations, or self-citations that could be inspected for reduction to inputs by construction. The entropy-driven engine is presented as an input mechanism for strategy selection rather than a quantity derived from or fitted to the target performance metric. No load-bearing step reduces to a self-definition, fitted prediction, or author-imported uniqueness theorem. The central claim rests on empirical outperformance on external datasets, which is independent of the method's internal justification.
Axiom & Free-Parameter Ledger
axioms (1)
- domain assumption An Intent-Query Gap exists that interactive dialogue can close more effectively than single-round retrieval.
invented entities (1)
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entropy-driven decision engine
no independent evidence
Reference graph
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Intent-Query Gap
INTRODUCTION The exponential growth of short-form video creates a signifi- cant “Intent-Query Gap” where users’ vague episodic memo- ries clash with the ambiguity of textual queries. While inter- active retrieval shifts the paradigm from static matching (e.g., CLIP4Clip [1]) to multi-turn dialogue, it exposes a critical “Strategy Gap”: the lack of an opti...
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ADEPT: An Entropy-Driven Dual-Strategy Agent for Interactive Video Retrieval
RELATED WORKS Interactive video retrieval bridges the “Intent-Query Gap” through multi-turn dialogue. This shifts the research paradigm from static semantic matching to defining an optimal dialogue policy for the “Strategy Gap”. Current approaches are mainly categorized into non-interactive retrieval, heuristic-based in- teraction, and agent-based systems...
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METHODOLOGY We propose ADEPT, a training-free framework that interprets user intent through entropy-driven interactions. 3.1. Overview of the Framework Given a databaseDand queryD 0, the system iteratively re- fines results overTrounds. We map inputs to a shared seman- tic space via an encoderf enc(·). At roundt, the queryD t re- trieves the candidate set...
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EXPERIMENTAL RESULTS This section presents a comprehensive empirical evaluation of the proposed ADEPT framework. Fig. 1. Overview of the ADEPT framework. The agent operates as an entropy-drivenclosed loop, utilizing uncertainty metrics (Hinter, Hintra) to dynamically select optimal strategies. Specificsystem promptsfor each VLM agent are detailed in the c...
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CONCLUSION We present ADEPT, a training-free, entropy-driven agent de- signed to bridge the intent—query gap. By diagnosing un- certainty via inter- and intra-cluster entropy, ADEPT dynami- cally switches strategies to efficiently guide interaction, estab- lishing a principled baseline for interpretable active retrieval. Limitations & Future Work.ADEPT cu...
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