Yao Xie

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Yao Xie (Official webpage) (CV)
Associate Professor
Harold R. and Mary Anne Nash Early Career Professor
H. Milton Stewart School of Industrial and Systems Engineering (ISyE)
Associate Director, Machine Learning Center
Adjunct Professor, School of Electrical and Computer Engineering (ECE)
Georgia Institute of Technology

Contact

Office Phone: (404) 385-1687
Office: Groseclose 339
765 Ferst Dr NW, Atlanta, GA, 30332-0205
Email: Email address

Research Interests

My research lies at the intersection of statistics, optimization, and machine learning. I work on developing computationally efficient and statistically powerful algorithms with guarantees, for engineering problems arising from various real-world applications.

My work has generated societal and policy impact: see here for our work on data-driven policing.

  • Sequential data: Point processes, (high-dimensional and non-stationary) time series, spatio-temporal data, dynamic networks, and sequential prediction.
  • Hypothesis tests: Change-point detection, distributions shift, anomaly detection, two-sample test, robust hypothesis test.
  • Structured high-dimensional data: Sparsity, low-rank matrix/tensor, and manifold data.
  • Machine learning: Uncertainty quantification, distributionally robust optimization, neural networks.
  • Applications: Policing/crime data, power systems, health-care and medical data, material sciences, sensor networks, and logistic networks.
  • For recent publications and preprints, please see here. My Erdős number is 3.

    Currently Teaching

    Graduate course: ISyE 6416, Computational Data Analysis. Spring 2023.

    Updates

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    I am fortunate and honored to receive the prestigeous INFORMS Donald P. Gaver, Jr. Early Career Award for Excellence in Operations Research in 2022.

    Citation: "For outstanding research contributions at the interface of operations research, statistics, machine learning and optimization; for successfully applying her research talent to applications of societal importance; and for contributions to the education and mentoring of students at all levels." Here is my acceptance speech.

    Picture: At INFORMS Award Ceremony, Oct. 2022 with (a subset) of my (current and former) students.


    June 2023, Plenary Speaker at the 8th International Workshop in Sequential Methodologies (IWSM).

    June 2023, Invited talk at the 7th "London Symposium on Information Theory (LSIT)", in Session "Mathematics of Machine Learning".

    June 2023, Statistics Seminar at London School of Economics.

    May 8-10, Invited to participate Statistical Foundations of Data Science and their Applications at Princeton.

    April 2023, Seminar at Zuse Institute Berlin (ZIB).

    January 2023, Invited talk, Information Theory and Data Science Workshop held at the Institute for Mathematical Science (IMS), National University of Singapore (NUS).

    Oct. 2022, Featured Speaker at Georgia Statistics Day.

    Oct. 2022, ISE Seminar at North Carolina State.

    Oct. 2022, Organize two INFORMS Sessions on "Analytics for Policing and Urban Public Service Operations".

    Oct. 2022, talk at the Zhejiang University International Workshop on Intelligent Signal Processing.

    Sept. 2022, talk at a mini-symposium on "Geometric distances and robust data analysis" at the SIAM Data Science conference in San Diego.

    Aug. 2022, selected to be an ISyE DEI Fellow.

    August 2022, talk at JSM, in "The Best of AOAS" Session and "Statistical Advances in Learning Large-scale Networks from Massive Data Sets."

    August 2022, give a lecture at the IEEE East Asian School of Information Theory 2022 (EASIT) in Summer 2022. Report here.

    August 2022, invited talk at IFDS Workshop on Distributional Robustness in Data Science, at University of Washington.

    July 2022, invited talk at the ICML Workshop on Distribution-Free Uncertainty Quantification.

    June 2022, gave a research talk to train faculty participants of Clark Atlanta University, a Historically Black Colleges and University (HBCU).

    June 2022, taught a session to ISyE Mission Possible, a summer camp for high school students.

    June 2022, start serving as Associate Editor for IEEE Transactions on Information Theory, in the area of Statistics and Machine Learning.

    May 2022, I will give a talk in an invited session at the 2022 Statistical Methods in Imaging (SMI) conference, in the session "New statistical and machine learning methods for complex imaging data."

    May 2022, talk at ITA workshop held by UCSD.

    May 2022, talk at the NSF ATD Workshop and the NSF AMPS Workshop at George Mason University.

    May 2022, talk at Conference in Honor of David Siegmund's Contribution to Statistical Sciences at Stanford University.

    April 2022, Congratulations Woody Zhu for defending his Ph.D. thesis! He will join CMU Heinz School of Public Policy as a tenure-track Assistant Professor.

    March 10, 2022, I give a keynote talk at Graduate Student Workshop at DIMACS, a NSF Tripod Center at Rutgers University.

    March 9, 2022, organize special session at CISS (virtual) on "Recent advances in sequential analysis and hypothesis test".

    March 2, 2022, speak at "Online seminar on spatial and spatio-temporal point processes".

    I am excited to receive a new NSF grant as PI, in the SCALE MoDL Program "Bridging statistical hypothesis tests and deep learning for reliability and computational efficiency,'' 01/2022-12/2024.

    I look forward to participating the newly annouced NSF AI Institute for Advances in Optimization.

    Our paper "Data-driven optimization for police zone design" (jointly with Woody Zhu and He Wang) was selected as a Finalist of the INFORMS Wagner Prize 2021.

    At INFORMS 2021, I am organizing a Committee Choice Session "Analytics for policing and urban public service operations" (jointly with He Wang), and "Modern algorithms for threat detection."

    Nov. 2021, talk at Monie A. Ferst Award Symposium, in honor of Professor Jeff Wu.

    Nov. 2021, I will talk at Cornell ORIE Colloquium.

    I serve as an Area Chair for NeurIPS 2021.

    September 2021, give a tutorial entitled "Learning point process networks using discrete events data" at the Graduate International Workshop on Intelligent Signal Processing, organized by Zhejiang University.

    Aug 2021, talk at IFDS-MADLab Workshop.

    July 2021, give a short course on "Introduction to Machine Learning and Statistical Modeling" to Center for Disease Control (CDC), Statistical Advisory Group.

    July 2021, talk at Bernoulli-IMS 10th World Congress in Probability and Statistics.

    July 2021, talk at Online Seminar on Mathematical Foundations of Data Science.

    Feb. 2021, virtual ECE seminar at University of California, Davis.

    Feb. 2021, virtual SILO seminar at University of Wisconsin Madison.

    Dec. 2020, virtual statistics seminar at University of Pennsylvania, Wharton School.

    Nov. 2020, virtual seminar at CMU, Tepper School of Business.

    Nov. 2020, "Woody" Shixiang Zhu won the Second Place in the Best Paper Competititon for the 15th INFORMS Workshop on Data Mining and Decision Analytics for paper entitled "Sequential Adversarial Anomaly Detection for Dependent Events". Congratulations!

    Nov. 2020, co-found and co-organized the new Machine Learning/AI Cluster at 2020 INFORMS meeting.

    Nov. 2020, virtual seminar at University of South Florida.

    Oct. 2020, Liyan Xie and Henry Yuchi received the Georgia Tech IDEaS-TRIAD Research Scholarship, for their projects "Distributionally Robust Statistical Tests and Learning" and “Diffusion-based Gaussian Process Dynamic Model for Material Degradation and Prognostic Analysis”. Congratulations!

    Oct. 2020, co-organizing a Special Issue at IEEE Journal on Selected Areas in Information Theory, on "Sequential, active, and reinforcement learning". Please see here for call-for-paper.

    Oct. 2020, Liyan Xie was selected to participate the "Rising Stars 2020" Workshop. Congratulations!

    Oct. 2020, virtual statistics seminar at Duke University.

    July 2020, virtual seminar at CDC on "High-resolution spatio-temporal covariates models for county-level COVID-19 data in the US".

    July 2020, Alexander Bukharin received the President’s Undergraduate Research Salary Award (PURA) for working on our project: COVID-19 spatial-temporal sequential modeling and prediction.

    June 2020, I was selected to join the 2020-2021 Cohort of the Office of Provost's Emerging Leaders Program.

    May 2020, give virtual statistics seminar at Rutgers University.

    April 2020, Alexander Bukharin received the GT COE Outstanding Undergraduate Research Award for his work with us on Atlanta police districting.

    March 2020, I organized a session on "Recent Advances in Sequential Analysis" at CISS, Princeton (canceled due to COVID-19).

    I will serve as an Associate Editor for Sequential Analysis, 2020-2022.

    Jan. 2020, our group has 3 papers accepted by IEEE ICASSP 2020: "Adversarial anomaly detection for marked spatio-temporal streaming data", "Online community detection by spectral CUSUM", and "Sequential vessel trajectory identification using truncated Viterbi algorithm."