Cascading Bandits: Learning to Rank in the Cascade Model
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Abstract (arXiv)
A search engine usually outputs a list of K web pages. The user examines this list, from the first web page to the last, and chooses the first attractive page. This model of user behavior is known as the cascade model. In this paper, we propose cascading bandits, a learning variant of the cascade model where the objective is to identify K most attractive items. We formulate our problem as a stochastic combinatorial partial monitoring problem. We propose two algorithms for solving it, CascadeUCB1 and CascadeKL-UCB. We also prove gap-dependent upper bounds on the regret of these algorithms and derive a lower bound on the regret in cascading bandits. The lower bound matches the upper bound of CascadeKL-UCB up to a logarithmic factor. We experiment with our algorithms on several problems. The algorithms perform surprisingly well even when our modeling assumptions are violated.
Key facts. Cited by 75 papers in the map (data through 7 Oct 2026). First posted on arXiv 10 Feb 2015.
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Citing papers per year: 2021: 21; 2022: 14; 2023: 13; 2024: 9; 2025: 9; 2026: 9.
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- 2021Advances and Challenges in Conversational Recommender Systems: A Surveycited by 118
- 2024Cost-Effective Online Multi-LLM Selection with Versatile Reward Modelscited by 36
- 2021Hierarchical Bayesian Banditscited by 33
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- 2021Heterogeneous Multi-player Multi-armed Bandits: Closing the Gap and Generalizationcited by 18
- 2022Deep Hierarchy in Banditscited by 18
- 2024Optimal Design for Human Preference Elicitationcited by 17
- 2023Combinatorial Neural Banditscited by 16
- 2022Batch-Size Independent Regret Bounds for Combinatorial Semi-Bandits with Probabilistically Triggered Arms or Independent Armscited by 15
- 2026A Survey on LLM-based Conversational User Simulationcited by 14
- 2022Towards Scalable and Robust Structured Bandits: A Meta-Learning Frameworkcited by 10
38 more
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- 2025Active Learning for Direct Preference Optimizationcited by 9
- 2022Fast online inference for nonlinear contextual bandit based on Generative Adversarial Networkcited by 7
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- 2021Be Greedy in Multi-Armed Banditscited by 6
- 2021Robust Generalization and Safe Query-Specialization in Counterfactual Learning to Rankcited by 6
- 2021PairRank: Online Pairwise Learning to Rank by Divide-and-Conquercited by 6
- 2022Federated Multi-Armed Bandits Under Byzantine Attackscited by 6
- 2022Online Learning and Bandits with Queried Hintscited by 6
- 2023Adversarial Attacks on Online Learning to Rank with Click Feedbackcited by 6
- 2023Competing for Shareable Arms in Multi-Player Multi-Armed Banditscited by 6
- 2023Adversarial Attacks on Online Learning to Rank with Stochastic Click Modelscited by 6
- 2024Federated Contextual Cascading Bandits with Asynchronous Communication and Heterogeneous Userscited by 6
- 2024Probably Approximately Precision and Recall Learningcited by 5
- 2025Offline Learning for Combinatorial Multi-armed Banditscited by 5
- 2021Safe Data Collection for Offline and Online Policy Learningcited by 4
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- 2025Improved Regret and Contextual Linear Extension for Pandora's Box and Prophet Inequalitycited by 4
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- 2021Efficient Action Poisoning Attacks on Linear Contextual Banditscited by 3
- 2022Product Ranking for Revenue Maximization with Multiple Purchasescited by 3
- 2023Multiplier Bootstrap-based Explorationcited by 3
- 2023Sum-max Submodular Banditscited by 3
- 2021Sequential Choice Bandits with Feedback for Personalizing users' experiencecited by 2
- 2021Contextual Combinatorial Bandits with Changing Action Sets via Gaussian Processescited by 2
- 2021On Submodular Contextual Banditscited by 2
- 2022Pessimistic Off-Policy Optimization for Learning to Rankcited by 2
- 2022Simultaneously Learning Stochastic and Adversarial Bandits under the Position-Based Modelcited by 2
- 2022Contextual bandits with concave rewards, and an application to fair rankingcited by 2
- 2023Adversarial Attacks on Combinatorial Multi-Armed Banditscited by 2
- 2025Follow-the-Perturbed-Leader Approaches Best-of-Both-Worlds for the m-Set Semi-Bandit Problemscited by 2
- 2026Efficient Adversarial Attacks on High-dimensional Offline Banditscited by 2
- 2026Multi-Armed Bandits With Best-Action Queriescited by 2
- 2021CORe: Capitalizing On Rewards in Bandit Explorationcited by 1
- 2021Cascading Bandit under Differential Privacycited by 1
- 2021Online Learning of Independent Cascade Models with Node-level Feedbackcited by 1
- 2021Online Learning of Optimally Diverse Rankingscited by 1
- 2021Calibrating Explore-Exploit Trade-off for Fair Online Learning to Rankcited by 1
50 most cited of 75 All 75 (JSON)
- 2026Online Learning with LLM Experts from Limited Feedback5 Sep 2026
- 2026DCM Bandits: Multiplayer Information Asymmetric Cascading Bandits for Multiple Clicks12 Aug 2026
- 2026Stochastic Reset Pathfinding: Path-Level Regret for Cascading Bandits over Graph Paths16 Jul 2026
- 2026A Linear Matching Bandit Approach to Online Multi-Human Multi-Robot Teaming28 Jun 2026
- 2026Multi-Armed Bandits With Best-Action Queries8 May 2026
- 2026A Survey on LLM-based Conversational User Simulation27 Apr 2026
- 2026Learning to Attack: A Bandit Approach to Adversarial Context Poisoning28 Feb 2026
- 2026Learning to Allocate Resources with Censored Feedback6 Feb 2026
- 2026Efficient Adversarial Attacks on High-dimensional Offline Bandits2 Feb 2026
- 2025Cascading Bandits With Feedback14 Nov 2025
- 2025Online Learning to Rank under Corruption: A Robust Cascading Bandits Approach4 Nov 2025
- 2025Observation-Free Attacks on Online Learning to Rank26 Sep 2025
38 more
- 2025Multi-User Contextual Cascading Bandits for Personalized Recommendation19 Aug 2025
- 2025Near-Optimal Regret for Efficient Stochastic Combinatorial Semi-Bandits8 Aug 2025
- 2025Improved Regret and Contextual Linear Extension for Pandora's Box and Prophet Inequality24 May 2025
- 2025Follow-the-Perturbed-Leader Approaches Best-of-Both-Worlds for the m-Set Semi-Bandit Problems9 Apr 2025
- 2025Active Learning for Direct Preference Optimization3 Mar 2025
- 2025Offline Learning for Combinatorial Multi-armed Bandits31 Jan 2025
- 2024Probably Approximately Precision and Recall Learning20 Nov 2024
- 2024Adaptively Learning to Select-Rank in Online Platforms7 Jun 2024
- 2024Combinatorial Multivariant Multi-Armed Bandits with Applications to Episodic Reinforcement Learning and Beyond3 Jun 2024
- 2024Cost-Effective Online Multi-LLM Selection with Versatile Reward Models26 May 2024
- 2024Optimal Design for Human Preference Elicitation22 Apr 2024
- 2024PPA-Game: Characterizing and Learning Competitive Dynamics Among Online Content Creators22 Mar 2024
- 2024Federated Contextual Cascading Bandits with Asynchronous Communication and Heterogeneous Users26 Feb 2024
- 2024Misalignment, Learning, and Ranking: Harnessing Users Limited Attention21 Feb 2024
- 2024Cascading Reinforcement Learning17 Jan 2024
- 2023Optimising Human-AI Collaboration by Learning Convincing Explanations13 Nov 2023
- 2023Sum-max Submodular Bandits10 Nov 2023
- 2023Adversarial Attacks on Combinatorial Multi-Armed Bandits8 Oct 2023
- 2023Master-slave Deep Architecture for Top-K Multi-armed Bandits with Non-linear Bandit Feedback and Diversity Constraints24 Aug 2023
- 2023Piecewise-Stationary Combinatorial Semi-Bandit with Causally Related Rewards26 Jul 2023
- 2023Combinatorial Neural Bandits31 May 2023
- 2023Adversarial Attacks on Online Learning to Rank with Stochastic Click Models30 May 2023
- 2023Competing for Shareable Arms in Multi-Player Multi-Armed Bandits30 May 2023
- 2023Adversarial Attacks on Online Learning to Rank with Click Feedback26 May 2023
- 2023Ranking with Popularity Bias: User Welfare under Self-Amplification Dynamics24 May 2023
- 2023Exploration of Unranked Items in Safe Online Learning to Re-Rank2 May 2023
- 2023Multiplier Bootstrap-based Exploration3 Feb 2023
- 2023Overcoming Prior Misspecification in Online Learning to Rank25 Jan 2023
- 2022Online Learning and Bandits with Queried Hints4 Nov 2022
- 2022Contextual bandits with concave rewards, and an application to fair ranking18 Oct 2022
- 2022Product Ranking for Revenue Maximization with Multiple Purchases15 Oct 2022
- 2022Batch-Size Independent Regret Bounds for Combinatorial Semi-Bandits with Probabilistically Triggered Arms or Independent Arms31 Aug 2022
- 2022UniRank: Unimodal Bandit Algorithm for Online Ranking2 Aug 2022
- 2022Learning to Sell a Focal-ancillary Combination23 Jul 2022
- 2022Simultaneously Learning Stochastic and Adversarial Bandits under the Position-Based Model12 Jul 2022
- 2022Pessimistic Off-Policy Optimization for Learning to Rank6 Jun 2022
- 2022Federated Multi-Armed Bandits Under Byzantine Attacks9 May 2022
- 2022Minimax Regret for Cascading Bandits23 Mar 2022
50 newest of 75 All 75 (JSON)
- 2021Advances and Challenges in Conversational Recommender Systems: A Surveycited by 118
- 2021Hierarchical Bayesian Banditscited by 33
- 2021Multinomial Logit Contextual Bandits: Provable Optimality and Practicalitycited by 21
- 2021Measuring Recommender System Effects with Simulated Userscited by 20
- 2021Heterogeneous Multi-player Multi-armed Bandits: Closing the Gap and Generalizationcited by 18
- 2022Deep Hierarchy in Banditscited by 18
- 2024Optimal Design for Human Preference Elicitationcited by 17
- 2023Combinatorial Neural Banditscited by 16
- 2022Batch-Size Independent Regret Bounds for Combinatorial Semi-Bandits with Probabilistically Triggered Arms or Independent Armscited by 15
- 2026A Survey on LLM-based Conversational User Simulationcited by 14
- 2022Towards Scalable and Robust Structured Bandits: A Meta-Learning Frameworkcited by 10
- 2022Minimax Regret for Cascading Banditscited by 10
12 most cited of 72 All 72 (JSON)
- 2026Online Learning with LLM Experts from Limited Feedback5 Sep 2026
- 2026DCM Bandits: Multiplayer Information Asymmetric Cascading Bandits for Multiple Clicks12 Aug 2026
- 2026Stochastic Reset Pathfinding: Path-Level Regret for Cascading Bandits over Graph Paths16 Jul 2026
- 2026A Linear Matching Bandit Approach to Online Multi-Human Multi-Robot Teaming28 Jun 2026
- 2026Multi-Armed Bandits With Best-Action Queries8 May 2026
- 2026A Survey on LLM-based Conversational User Simulation27 Apr 2026
- 2026Learning to Attack: A Bandit Approach to Adversarial Context Poisoning28 Feb 2026
- 2026Learning to Allocate Resources with Censored Feedback6 Feb 2026
- 2025Cascading Bandits With Feedback14 Nov 2025
- 2025Online Learning to Rank under Corruption: A Robust Cascading Bandits Approach4 Nov 2025
- 2025Observation-Free Attacks on Online Learning to Rank26 Sep 2025
- 2025Multi-User Contextual Cascading Bandits for Personalized Recommendation19 Aug 2025
12 newest of 72 All 72 (JSON)