no code implementations • 4 Sep 2024 • Anqi Liu, Shiyi Mu, Shugong Xu
Autonomous driving algorithms usually employ sRGB images as model input due to their compatibility with the human visual system.
1 code implementation • 25 Jul 2024 • Gina Wong, Joshua Gleason, Rama Chellappa, Yoav Wald, Anqi Liu
Invariant models are also supposed to generalize to shifts in the marginal distribution $p(X_{\text{inv}})$ of the extracted features $X_{\text{inv}}$, a type of shift we call an $\textit{invariant covariate shift}$.
1 code implementation • 4 Jul 2024 • Zhengping Jiang, Jingyu Zhang, Nathaniel Weir, Seth Ebner, Miriam Wanner, Kate Sanders, Daniel Khashabi, Anqi Liu, Benjamin Van Durme
Hallucinations -- the generation of untrue claims -- pose a challenge to the application of large language models (LLMs) [1] thereby motivating the development of metrics to evaluate factual precision.
1 code implementation • 13 May 2024 • Anton Orlichenko, Gang Qu, Ziyu Zhou, Anqi Liu, Hong-Wen Deng, Zhengming Ding, Julia M. Stephen, Tony W. Wilson, Vince D. Calhoun, Yu-Ping Wang
We also find that most prediction using fMRI data is dependent on correlation with, and prediction of, demographics.
1 code implementation • 10 May 2024 • Drew Prinster, Samuel Stanton, Anqi Liu, Suchi Saria
As artificial intelligence (AI) / machine learning (ML) gain widespread adoption, practitioners are increasingly seeking means to quantify and control the risk these systems incur.
1 code implementation • 7 Mar 2024 • Manh Ha Bui, Anqi Liu
Morden deep ensembles technique achieves strong uncertainty estimation performance by going through multiple forward passes with different models.
1 code implementation • 28 Feb 2024 • Zhengping Jiang, Yining Lu, Hanjie Chen, Daniel Khashabi, Benjamin Van Durme, Anqi Liu
This is achieved by assessing the conditional V-information \citep{hewitt-etal-2021-conditional} with a predictive family robust against leaky features that can be exploited by a small model.
1 code implementation • 21 Jan 2024 • Yihong Guo, Hao liu, Yisong Yue, Anqi Liu
Central to our methodology is the application of robust regression, a distributionally robust technique tailored here to improve the estimation of conditional reward distribution from logging data.
no code implementations • 18 Dec 2023 • Yuxuan Huang, Lida Shi, Anqi Liu, Hao Xu
We further introduce LLM-ARK, a LLM grounded KG reasoning agent designed to deliver precise and adaptable predictions on KG paths.
no code implementations • 12 Oct 2023 • Chen Zhao, Kuan-Jui Su, Chong Wu, Xuewei Cao, Qiuying Sha, Wu Li, Zhe Luo, Tian Qin, Chuan Qiu, Lan Juan Zhao, Anqi Liu, Lindong Jiang, Xiao Zhang, Hui Shen, Weihua Zhou, Hong-Wen Deng
By learning the latent representations of both omics data, our method can effectively impute missing metabolomics values based on genomic information.
1 code implementation • 2 Aug 2023 • Anton Orlichenko, Gang Qu, Kuan-Jui Su, Anqi Liu, Hui Shen, Hong-Wen Deng, Yu-Ping Wang
Using the UK Biobank dataset, we find one can achieve the same level of variance explained with 50 training subjects by exploiting identifiability as with 10, 000 training subjects without double-dipping.
no code implementations • 13 Jul 2023 • Samuel Barham, Orion Weller, Michelle Yuan, Kenton Murray, Mahsa Yarmohammadi, Zhengping Jiang, Siddharth Vashishtha, Alexander Martin, Anqi Liu, Aaron Steven White, Jordan Boyd-Graber, Benjamin Van Durme
To foster the development of new models for collaborative AI-assisted report generation, we introduce MegaWika, consisting of 13 million Wikipedia articles in 50 diverse languages, along with their 71 million referenced source materials.
1 code implementation • 15 May 2023 • José I. Segovia-Martín, Santiago Mazuelas, Anqi Liu
Supervised learning is often affected by a covariate shift in which the marginal distributions of instances (covariates $x$) of training and testing samples $\mathrm{p}_\text{tr}(x)$ and $\mathrm{p}_\text{te}(x)$ are different but the label conditionals coincide.
no code implementations • 12 Apr 2023 • Chen Zhao, Anqi Liu, Xiao Zhang, Xuewei Cao, Zhengming Ding, Qiuying Sha, Hui Shen, Hong-Wen Deng, Weihua Zhou
Integration of heterogeneous and high-dimensional multi-omics data is becoming increasingly important in understanding genetic data.
1 code implementation • 13 Feb 2023 • Ha Manh Bui, Anqi Liu
Sampling-based methods, e. g., Deep Ensembles and Bayesian Neural Nets have become promising approaches to improve the quality of uncertainty estimation and robust generalization.
1 code implementation • 1 Feb 2023 • Anton Orlichenko, Grant Daly, Ziyu Zhou, Anqi Liu, Hui Shen, Hong-Wen Deng, Yu-Ping Wang
The reason is that it is too slow and cumbersome to use a programming interface to create all the necessary visualizations required to identify all correlations, confounding effects, or quality control problems in a dataset.
no code implementations • 23 Dec 2022 • Zhitong Yang, Xing Ma, Anqi Liu, Zheyu Zhang
Task-oriented dialog(TOD) aims to assist users in achieving specific goals through multi-turn conversation.
1 code implementation • 6 Dec 2022 • Zhaoning Li, Qiaoli Jiang, Zhengming Wu, Anqi Liu, Haiyan Wu, Miner Huang, Kai Huang, Yixuan Ku
The present study tested whether the AI driver could create a human-like ride experience for passengers based on 69 participants' feedback in a real-road scenario.
no code implementations • 6 Oct 2022 • Kate Sanders, Reno Kriz, Anqi Liu, Benjamin Van Durme
However, humans are frequently presented with visual data that they cannot classify with 100% certainty, and models trained on standard vision benchmarks achieve low performance when evaluated on this data.
no code implementations • 3 Oct 2022 • Xuewei Cao, Joyce H Keyak, Sigurdur Sigurdsson, Chen Zhao, Weihua Zhou, Anqi Liu, Thomas Lang, Hong-Wen Deng, Vilmundur Gudnason, Qiuying Sha
The results showed that the average of the area under the receive operating characteristic curve (AUC) using PC1 was always higher than that using all FE parameters combined in the male subjects.
1 code implementation • 26 Jul 2022 • Aayush Mishra, Anqi Liu
The EI step uses a reference model which focuses on spurious correlations to efficiently reach a good environment partition.
1 code implementation • 21 Jul 2022 • Drew Prinster, Anqi Liu, Suchi Saria
We propose \textbf{JAWS}, a series of wrapper methods for distribution-free uncertainty quantification tasks under covariate shift, centered on the core method \textbf{JAW}, the \textbf{JA}ckknife+ \textbf{W}eighted with data-dependent likelihood-ratio weights.
no code implementations • Conference 2021 • Anqi Liu, Wenxiao Shi, Wei Liu, Zhuo Wang
Data rate and communication distance are two important criteria for measuring the performance of optical camera communication (OCC) systems.
no code implementations • 29 Sep 2021 • Alycia Lee, Anthony L Pineci, Uriah Israel, Omer Bar-Tal, Leeat Keren, David A. Van Valen, Anima Anandkumar, Yisong Yue, Anqi Liu
For each layer, we also achieve higher accuracy when the overall accuracy is kept fixed across different methods.
no code implementations • 29 Sep 2021 • Eric Zhao, De-An Huang, Hao liu, Zhiding Yu, Anqi Liu, Olga Russakovsky, Anima Anandkumar
In real-world applications, however, there are multiple protected attributes yielding a large number of intersectional protected groups.
no code implementations • 24 Feb 2021 • Maya Srikanth, Anqi Liu, Nicholas Adams-Cohen, Jian Cao, R. Michael Alvarez, Anima Anandkumar
However, collecting social media data using a static set of keywords fails to satisfy the growing need to monitor dynamic conversations and to study fast-changing topics.
no code implementations • 17 Jan 2021 • Anqi Liu, Hao liu, Tongxin Li, Saeed Karimi-Bidhendi, Yisong Yue, Anima Anandkumar
Thus, we provide a principled approach to tackling the joint problem of causal discovery and latent variable inference.
1 code implementation • 11 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.
no code implementations • 8 Oct 2020 • Haoxuan Wang, Zhiding Yu, Yisong Yue, Anima Anandkumar, Anqi Liu, Junchi Yan
We propose a framework for learning calibrated uncertainties under domain shifts, where the source (training) distribution differs from the target (test) distribution.
no code implementations • 28 Sep 2020 • Haoxuan Wang, Anqi Liu, Zhiding Yu, Yisong Yue, Anima Anandkumar
This formulation motivates the use of two neural networks that are jointly trained --- a discriminative network between the source and target domains for density-ratio estimation, in addition to the standard classification network.
no code implementations • 16 Jul 2020 • Eric Zhao, Anqi Liu, Animashree Anandkumar, Yisong Yue
We address the problem of active learning under label shift: when the class proportions of source and target domains differ.
no code implementations • 9 May 2020 • Yashwanth Kumar Nakka, Anqi Liu, Guanya Shi, Anima Anandkumar, Yisong Yue, Soon-Jo Chung
The Info-SNOC algorithm is used to compute a sub-optimal pool of safe motion plans that aid in exploration for learning unknown residual dynamics under safety constraints.
2 code implementations • 13 Nov 2019 • Anqi Liu, Maya Srikanth, Nicholas Adams-Cohen, R. Michael Alvarez, Anima Anandkumar
Online harassment is a significant social problem.
no code implementations • 13 Nov 2019 • Anqi Liu, Hao liu, Anima Anandkumar, Yisong Yue
Ours is a general approach that can be used to augment any existing OPE method that utilizes the direct method.
no code implementations • L4DC 2020 • Anqi Liu, Guanya Shi, Soon-Jo Chung, Anima Anandkumar, Yisong Yue
To address this challenge, we present a deep robust regression model that is trained to directly predict the uncertainty bounds for safe exploration.
no code implementations • 13 Jun 2019 • Quanying Liu, Haiyan Wu, Anqi Liu
Our results demonstrate that IRL is an effective tool to model human decision-making behavior, as well as to help interpret the human psychological process in risk decision-making.
2 code implementations • ICLR 2019 • Kamyar Azizzadenesheli, Anqi Liu, Fanny Yang, Animashree Anandkumar
We derive a generalization bound for the classifier on the target domain which is independent of the (ambient) data dimensions, and instead only depends on the complexity of the function class.
2 code implementations • 18 Dec 2018 • Rizal Fathony, Kaiser Asif, Anqi Liu, Mohammad Ali Bashiri, Wei Xing, Sima Behpour, Xinhua Zhang, Brian D. Ziebart
We propose a robust adversarial prediction framework for general multiclass classification.
no code implementations • 27 Sep 2018 • Nicholas Rhinehart, Anqi Liu, Kihyuk Sohn, Paul Vernaza
We propose a novel approach to regularizing generative adversarial networks (GANs) leveraging learned {\em structured Gibbs distributions}.
no code implementations • 28 Dec 2017 • Anqi Liu, Rizal Fathony, Brian D. Ziebart
Robust Bias-Aware (RBA) prediction provides the conditional label distribution that is robust to the worstcase logarithmic loss for the target distribution while matching feature expectation constraints from the source distribution.
no code implementations • 28 Dec 2017 • Anqi Liu, Brian D. Ziebart
Covariate shift relaxes the widely-employed independent and identically distributed (IID) assumption by allowing different training and testing input distributions.
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.
no code implementations • JEPTALNRECITAL 2016 • Anqi Liu
Historiquement, le suffixe /ə˞/ est un suffixe diminutif correspondant au mot 儿 ({\textless}er{\textgreater} en pinyin) qui signifie {''}petitesse{''}.
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.