no code implementations • 31 Oct 2024 • Hiwot Belay Tadesse, Alihan Hüyük, Weiwei Pan, Finale Doshi-Velez
When explaining black-box machine learning models, it's often important for explanations to have certain desirable properties.
no code implementations • 6 Oct 2024 • Salma Abdel Magid, Weiwei Pan, Simon Warchol, Grace Guo, Junsik Kim, Mahia Rahman, Hanspeter Pfister
Text-to-image (T2I) models are increasingly used in impactful real-life applications.
no code implementations • 26 Sep 2024 • Jiayu Yao, Weiwei Pan, Finale Doshi-Velez, Barbara E Engelhardt
In this work, we study an inverse reinforcement learning (IRL) problem where the experts are planning under a shared reward function but with different, unknown planning horizons.
no code implementations • 31 May 2024 • Eura Nofshin, Esther Brown, Brian Lim, Weiwei Pan, Finale Doshi-Velez
Explanations of an AI's function can assist human decision-makers, but the most useful explanation depends on the decision's context, referred to as the downstream task.
no code implementations • 13 Mar 2024 • Yaniv Yacoby, Weiwei Pan, Finale Doshi-Velez
It approximates the posterior of the true model a priori; fixing this posterior approximation, we then maximize the lower bound relative to only the generative model.
no code implementations • 26 Jan 2024 • Eura Nofshin, Siddharth Swaroop, Weiwei Pan, Susan Murphy, Finale Doshi-Velez
Many important behavior changes are frictionful; they require individuals to expend effort over a long period with little immediate gratification.
1 code implementation • 20 Sep 2023 • Jose Roberto Tello Ayala, Akl C. Fahed, Weiwei Pan, Eugene V. Pomerantsev, Patrick T. Ellinor, Anthony Philippakis, Finale Doshi-Velez
The adoption of machine learning in healthcare calls for model transparency and explainability.
no code implementations • 1 Sep 2023 • Varshini Subhash, Anna Bialas, Weiwei Pan, Finale Doshi-Velez
We believe this new geometric perspective on the underlying mechanism driving universal attacks could help us gain deeper insight into the internal workings and failure modes of LLMs, thus enabling their mitigation.
no code implementations • 28 Jul 2023 • Charumathi Badrinath, Weiwei Pan, Finale Doshi-Velez
A common way to explore text corpora is through low-dimensional projections of the documents, where one hopes that thematically similar documents will be clustered together in the projected space.
no code implementations • 20 Jun 2023 • Sarah Rathnam, Sonali Parbhoo, Weiwei Pan, Susan A. Murphy, Finale Doshi-Velez
We demonstrate that planning under a lower discount factor produces an identical optimal policy to planning using any prior on the transition matrix that has the same distribution for all states and actions.
no code implementations • 1 Dec 2022 • Eura Shin, Siddharth Swaroop, Weiwei Pan, Susan Murphy, Finale Doshi-Velez
Mobile health (mHealth) technologies empower patients to adopt/maintain healthy behaviors in their daily lives, by providing interventions (e. g. push notifications) tailored to the user's needs.
no code implementations • 16 Nov 2022 • Jiayu Yao, Yaniv Yacoby, Beau Coker, Weiwei Pan, Finale Doshi-Velez
Comparing Bayesian neural networks (BNNs) with different widths is challenging because, as the width increases, multiple model properties change simultaneously, and, inference in the finite-width case is intractable.
no code implementations • 10 Nov 2022 • Zixi Chen, Varshini Subhash, Marton Havasi, Weiwei Pan, Finale Doshi-Velez
In this work, we survey properties defined in interpretable machine learning papers, synthesize them based on what they actually measure, and describe the trade-offs between different formulations of these properties.
no code implementations • 2 Aug 2022 • Mark Penrod, Harrison Termotto, Varshini Reddy, Jiayu Yao, Finale Doshi-Velez, Weiwei Pan
For responsible decision making in safety-critical settings, machine learning models must effectively detect and process edge-case data.
no code implementations • 13 Jul 2022 • Jiayu Yao, Sonali Parbhoo, Weiwei Pan, Finale Doshi-Velez
We develop a Reinforcement Learning (RL) framework for improving an existing behavior policy via sparse, user-interpretable changes.
1 code implementation • 23 Feb 2022 • Beau Coker, Wessel P. Bruinsma, David R. Burt, Weiwei Pan, Finale Doshi-Velez
Finally, we show that the optimal approximate posterior need not tend to the prior if the activation function is not odd, showing that our statements cannot be generalized arbitrarily.
2 code implementations • 24 Jun 2021 • Anita Mahinpei, Justin Clark, Isaac Lage, Finale Doshi-Velez, Weiwei Pan
Machine learning models that incorporate concept learning as an intermediate step in their decision making process can match the performance of black-box predictive models while retaining the ability to explain outcomes in human understandable terms.
no code implementations • 13 Jun 2021 • Beau Coker, Weiwei Pan, Finale Doshi-Velez
Variational inference enables approximate posterior inference of the highly over-parameterized neural networks that are popular in modern machine learning.
no code implementations • 14 Jul 2020 • Yaniv Yacoby, Weiwei Pan, Finale Doshi-Velez
Variational Auto-encoders (VAEs) are deep generative latent variable models that are widely used for a number of downstream tasks.
no code implementations • 12 Jul 2020 • Théo Guénais, Dimitris Vamvourellis, Yaniv Yacoby, Finale Doshi-Velez, Weiwei Pan
Traditional training of deep classifiers yields overconfident models that are not reliable under dataset shift.
no code implementations • 21 Jun 2020 • Sujay Thakur, Cooper Lorsung, Yaniv Yacoby, Finale Doshi-Velez, Weiwei Pan
Neural Linear Models (NLM) are deep Bayesian models that produce predictive uncertainties by learning features from the data and then performing Bayesian linear regression over these features.
1 code implementation • 13 Apr 2020 • Jiayu Yao, Emma Brunskill, Weiwei Pan, Susan Murphy, Finale Doshi-Velez
However, when bandits are deployed in the context of a scientific study -- e. g. a clinical trial to test if a mobile health intervention is effective -- the aim is not only to personalize for an individual, but also to determine, with sufficient statistical power, whether or not the system's intervention is effective.
no code implementations • pproximateinference AABI Symposium 2019 • Yaniv Yacoby, Weiwei Pan, Finale Doshi-Velez
Recent work shows that traditional training methods tend to yield solutions that violate modeling desiderata: (1) the learned generative model captures the observed data distribution but does so while ignoring the latent codes, resulting in codes that do not represent the data (e. g. van den Oord et al. (2017); Kim et al. (2018)); (2) the aggregate of the learned latent codes does not match the prior p(z).
1 code implementation • 4 Nov 2019 • Andrew Slavin Ross, Weiwei Pan, Leo Anthony Celi, Finale Doshi-Velez
Ensembles depend on diversity for improved performance.
no code implementations • 1 Nov 2019 • Yaniv Yacoby, Weiwei Pan, Finale Doshi-Velez
Bayesian Neural Networks with Latent Variables (BNN+LVs) capture predictive uncertainty by explicitly modeling model uncertainty (via priors on network weights) and environmental stochasticity (via a latent input noise variable).
no code implementations • 24 Jun 2019 • Jiayu Yao, Weiwei Pan, Soumya Ghosh, Finale Doshi-Velez
Bayesian Neural Networks (BNNs) place priors over the parameters in a neural network.
no code implementations • 24 May 2019 • Omer Gottesman, Weiwei Pan, Finale Doshi-Velez
Tensor decomposition methods allow us to learn the parameters of latent variable models through decomposition of low-order moments of data.
no code implementations • 7 Dec 2018 • Marouan Belhaj, Pavlos Protopapas, Weiwei Pan
Thanks to the combination of a semi-supervised ELBO and parameters sharing across domains, we are able to simultaneously: (i) align all supervised examples of the same class into the same latent Gaussian Mixture component, independently from their domain; (ii) predict the class of unsupervised examples from different domains and use them to better model the occurring shifts.
no code implementations • 16 Nov 2018 • Melanie F. Pradier, Weiwei Pan, Jiayu Yao, Soumya Ghosh, Finale Doshi-Velez
As machine learning systems get widely adopted for high-stake decisions, quantifying uncertainty over predictions becomes crucial.
2 code implementations • 22 Jun 2018 • Andrew Slavin Ross, Weiwei Pan, Finale Doshi-Velez
There has been growing interest in developing accurate models that can also be explained to humans.
no code implementations • 18 Oct 2017 • Omer Gottesman, Weiwei Pan, Finale Doshi-Velez
Tensor decomposition methods are popular tools for learning latent variables given only lower-order moments of the data.
no code implementations • 20 Jun 2016 • Arjumand Masood, Weiwei Pan, Finale Doshi-Velez
and (2) How independent are the samples (as MCMC procedures produce correlated samples)?