Search Results for author: Brian Ziebart

Found 16 papers, 3 papers with code

Human-Human Health Coaching via Text Messages: Corpus, Annotation, and Analysis

no code implementations SIGDIAL (ACL) 2020 Itika Gupta, Barbara Di Eugenio, Brian Ziebart, Aiswarya Baiju, Bing Liu, Ben Gerber, Lisa Sharp, Nadia Nabulsi, Mary Smart

In this paper, we discuss these schemas and briefly talk about their application for automatically extracting activity goals and annotating the second round of data, collected with different health coaches and patients.

Modeling Low-Resource Health Coaching Dialogues via Neuro-Symbolic Goal Summarization and Text-Units-Text Generation

no code implementations16 Apr 2024 Yue Zhou, Barbara Di Eugenio, Brian Ziebart, Lisa Sharp, Bing Liu, Nikolaos Agadakos

Health coaching helps patients achieve personalized and lifestyle-related goals, effectively managing chronic conditions and alleviating mental health issues.

Dialogue Generation

Towards Enhancing Health Coaching Dialogue in Low-Resource Settings

no code implementations COLING 2022 Yue Zhou, Barbara Di Eugenio, Brian Ziebart, Lisa Sharp, Bing Liu, Ben Gerber, Nikolaos Agadakos, Shweta Yadav

In this paper, we propose to build a dialogue system that converses with the patients, helps them create and accomplish specific goals, and can address their emotions with empathy.

Empathetic Response Generation Response Generation

Superhuman Fairness

1 code implementation31 Jan 2023 Omid Memarrast, Linh Vu, Brian Ziebart

The fairness of machine learning-based decisions has become an increasingly important focus in the design of supervised machine learning methods.

Fairness Imitation Learning

Fairness for Robust Learning to Rank

no code implementations12 Dec 2021 Omid Memarrast, Ashkan Rezaei, Rizal Fathony, Brian Ziebart

While conventional ranking systems focus solely on maximizing the utility of the ranked items to users, fairness-aware ranking systems additionally try to balance the exposure for different protected attributes such as gender or race.

Fairness Learning-To-Rank

Distributionally Robust Imitation Learning

no code implementations NeurIPS 2021 Mohammad Ali Bashiri, Brian Ziebart, Xinhua Zhang

We consider the imitation learning problem of learning a policy in a Markov Decision Process (MDP) setting where the reward function is not given, but demonstrations from experts are available.

Imitation Learning reinforcement-learning +1

Feedback in Imitation Learning: The Three Regimes of Covariate Shift

no code implementations4 Feb 2021 Jonathan Spencer, Sanjiban Choudhury, Arun Venkatraman, Brian Ziebart, J. Andrew Bagnell

The learner often comes to rely on features that are strongly predictive of decisions, but are subject to strong covariate shift.

Causal Inference Imitation Learning

Robust Fairness under Covariate Shift

1 code implementation11 Oct 2020 Ashkan Rezaei, Anqi Liu, Omid Memarrast, Brian Ziebart

We investigate fairness under covariate shift, a relaxation of the iid assumption in which the inputs or covariates change while the conditional label distribution remains the same.

Fairness

Fairness for Robust Log Loss Classification

1 code implementation10 Mar 2019 Ashkan Rezaei, Rizal Fathony, Omid Memarrast, Brian Ziebart

Developing classification methods with high accuracy that also avoid unfair treatment of different groups has become increasingly important for data-driven decision making in social applications.

Classification Decision Making +3

Efficient and Consistent Adversarial Bipartite Matching

no code implementations ICML 2018 Rizal Fathony, Sima Behpour, Xinhua Zhang, Brian Ziebart

Many important structured prediction problems, including learning to rank items, correspondence-based natural language processing, and multi-object tracking, can be formulated as weighted bipartite matching optimizations.

Computational Efficiency Learning-To-Rank +2

Adversarial Surrogate Losses for Ordinal Regression

no code implementations NeurIPS 2017 Rizal Fathony, Mohammad Ali Bashiri, Brian Ziebart

Ordinal regression seeks class label predictions when the penalty incurred for mistakes increases according to an ordering over the labels.

Binary Classification General Classification +1

Adversarial Multiclass Classification: A Risk Minimization Perspective

no code implementations NeurIPS 2016 Rizal Fathony, Anqi Liu, Kaiser Asif, Brian Ziebart

Recently proposed adversarial classification methods have shown promising results for cost sensitive and multivariate losses.

Classification General Classification

Softstar: Heuristic-Guided Probabilistic Inference

no code implementations NeurIPS 2015 Mathew Monfort, Brenden M. Lake, Brian Ziebart, Patrick Lucey, Josh Tenenbaum

Recent machine learning methods for sequential behavior prediction estimate the motives of behavior rather than the behavior itself.

BIG-bench Machine Learning

Adversarial Prediction Games for Multivariate Losses

no code implementations NeurIPS 2015 Hong Wang, Wei Xing, Kaiser Asif, Brian Ziebart

Multivariate loss functions are used to assess performance in many modern prediction tasks, including information retrieval and ranking applications.

Information Retrieval Retrieval

Robust Classification Under Sample Selection Bias

no code implementations NeurIPS 2014 Anqi Liu, Brian Ziebart

In many important machine learning applications, the source distribution used to estimate a probabilistic classifier differs from the target distribution on which the classifier will be used to make predictions.

Binary Classification Classification +3

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