Search Results for author: Chun Kai Ling

Found 14 papers, 6 papers with code

Deep Copula-Based Survival Analysis for Dependent Censoring with Identifiability Guarantees

1 code implementation24 Dec 2023 Weijia Zhang, Chun Kai Ling, Xuanhui Zhang

Censoring is the central problem in survival analysis where either the time-to-event (for instance, death), or the time-tocensoring (such as loss of follow-up) is observed for each sample.

Survival Analysis

Multi-defender Security Games with Schedules

no code implementations28 Nov 2023 Zimeng Song, Chun Kai Ling, Fei Fang

We show that unlike prior work on multi-defender security games, the introduction of schedules can cause non-existence of equilibrium even under rather restricted environments.

Multimodal Learning Without Labeled Multimodal Data: Guarantees and Applications

1 code implementation7 Jun 2023 Paul Pu Liang, Chun Kai Ling, Yun Cheng, Alex Obolenskiy, Yudong Liu, Rohan Pandey, Alex Wilf, Louis-Philippe Morency, Ruslan Salakhutdinov

We propose two lower bounds based on the amount of shared information between modalities and the disagreement between separately trained unimodal classifiers, and derive an upper bound through connections to approximate algorithms for min-entropy couplings.

Self-Supervised Learning

Quantifying & Modeling Multimodal Interactions: An Information Decomposition Framework

1 code implementation NeurIPS 2023 Paul Pu Liang, Yun Cheng, Xiang Fan, Chun Kai Ling, Suzanne Nie, Richard Chen, Zihao Deng, Nicholas Allen, Randy Auerbach, Faisal Mahmood, Ruslan Salakhutdinov, Louis-Philippe Morency

The recent explosion of interest in multimodal applications has resulted in a wide selection of datasets and methods for representing and integrating information from different modalities.

Model Selection

Abstracting Imperfect Information Away from Two-Player Zero-Sum Games

no code implementations22 Jan 2023 Samuel Sokota, Ryan D'Orazio, Chun Kai Ling, David J. Wu, J. Zico Kolter, Noam Brown

Because these regularized equilibria can be made arbitrarily close to Nash equilibria, our result opens the door to a new perspective to solving two-player zero-sum games and yields a simplified framework for decision-time planning in two-player zero-sum games, void of the unappealing properties that plague existing decision-time planning approaches.

Vocal Bursts Valence Prediction

Function Approximation for Solving Stackelberg Equilibrium in Large Perfect Information Games

1 code implementation29 Dec 2022 Chun Kai Ling, J. Zico Kolter, Fei Fang

Function approximation (FA) has been a critical component in solving large zero-sum games.

Safe Subgame Resolving for Extensive Form Correlated Equilibrium

no code implementations29 Dec 2022 Chun Kai Ling, Fei Fang

Correlated Equilibrium is a solution concept that is more general than Nash Equilibrium (NE) and can lead to outcomes with better social welfare.

Safe Search for Stackelberg Equilibria in Extensive-Form Games

no code implementations2 Feb 2021 Chun Kai Ling, Noam Brown

Stackelberg equilibrium is a solution concept in two-player games where the leader has commitment rights over the follower.

Deep Archimedean Copulas

1 code implementation NeurIPS 2020 Chun Kai Ling, Fei Fang, J. Zico Kolter

A central problem in machine learning and statistics is to model joint densities of random variables from data.

Nonmyopic Gaussian Process Optimization with Macro-Actions

no code implementations22 Feb 2020 Dmitrii Kharkovskii, Chun Kai Ling, Kian Hsiang Low

This paper presents a multi-staged approach to nonmyopic adaptive Gaussian process optimization (GPO) for Bayesian optimization (BO) of unknown, highly complex objective functions that, in contrast to existing nonmyopic adaptive BO algorithms, exploits the notion of macro-actions for scaling up to a further lookahead to match up to a larger available budget.

Bayesian Optimization

Efficient Regret Minimization Algorithm for Extensive-Form Correlated Equilibrium

no code implementations NeurIPS 2019 Gabriele Farina, Chun Kai Ling, Fei Fang, Tuomas Sandholm

We show that a regret minimizer can be designed for a scaled extension of any two convex sets, and that from the decomposition we then obtain a global regret minimizer.

Large Scale Learning of Agent Rationality in Two-Player Zero-Sum Games

no code implementations11 Mar 2019 Chun Kai Ling, Fei Fang, J. Zico Kolter

With the recent advances in solving large, zero-sum extensive form games, there is a growing interest in the inverse problem of inferring underlying game parameters given only access to agent actions.

What game are we playing? End-to-end learning in normal and extensive form games

1 code implementation7 May 2018 Chun Kai Ling, Fei Fang, J. Zico Kolter

Although recent work in AI has made great progress in solving large, zero-sum, extensive-form games, the underlying assumption in most past work is that the parameters of the game itself are known to the agents.

Gaussian Process Planning with Lipschitz Continuous Reward Functions: Towards Unifying Bayesian Optimization, Active Learning, and Beyond

no code implementations21 Nov 2015 Chun Kai Ling, Kian Hsiang Low, Patrick Jaillet

This paper presents a novel nonmyopic adaptive Gaussian process planning (GPP) framework endowed with a general class of Lipschitz continuous reward functions that can unify some active learning/sensing and Bayesian optimization criteria and offer practitioners some flexibility to specify their desired choices for defining new tasks/problems.

Active Learning Bayesian Optimization

Cannot find the paper you are looking for? You can Submit a new open access paper.