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Publications

Most of these are available on arXiv. Corresponding software is available at the bottom of this page.

For a broad description of current interests, see my research page.

Preprints

• Bu, F., Aiello, A., Volfovsky, A.* and Xu,J.*. Likelihood-based Inference for partially observed stochastic epidemics with individual heterogeneity.

• Agarwal, M. and Xu, J. Quasi-Newton Acceleration of EM and MM Algorithms via Broyden’s Method with Extrapolation.

• Won, J., Lange, K. and Xu, J. A Unified Analysis of Convex and Non-convex l_p-ball Projection Problems.

• Stutz, T., Sehl, M., Sinsheimer, J. and Xu, J. Computational Tools for Assessing Gene Therapy under Branching Process Models of Mutation.

• Chakraborty, S. and Xu, J. Biconvex Clustering.

• He, M., Lu, D., Xu, J.* and Xavier, R*. Community Detection in Weighted Multilayer Networks with Ambient Noise.

• Xu, J. and Lange, K. A Proximal Distance Algorithm for Likelihood-based Sparse Covariance Estimation.

• Paul, D.*, Chakraborty, S.*, Das, S. and Xu, J. Implicit Annealing in Kernel and Multi-kernel Spaces: A Strongly Consistent Clustering Approach.

• Gustafson, A., Hirn, M., Mohammed, K., Narayanan, H. and Xu, J. Structural Risk Minimization for C^1,1(R^d) Regression.

Thesis

• Xu, J. (2016). Likelihood-Based Inference for Partially Observed Multi-Type Markov Branching Processes. PhD Dissertation, Department of Statistics, University of Washington. Link

Published

(* denotes equal contribution)

• Paul, D.*, Chakraborty, S.*, Das, S. and Xu, J (2021). Uniform Concentration Bounds toward a Unified Framework for Robust Clustering. To appear, Neural Information Processing Systems (NeurIPS). (Spotlight Paper)

• Landeros, A., Ji, X., Lange, K. L., Stutz, T., Xu, J., Sehl, M. E.*, and Sinsheimer, J.S* (2021). An Examination of School Reopening Strategies during the SARS-CoV-2 Pandemic. PLOS One.

• Ciccone, E.J., et al. (2021). SARS-CoV-2 Infection in Healthcare Personnel and Their Household Contacts at a Tertiary Academic Medical Center: Protocol for a Longitudinal Cohort Study. JMIR Research Protocols.

• Zhang, Z., Lange, K. and Xu, J. (2020). Simple and Scalable Sparse k-Means Clustering via Feature Ranking. Neural Information Processing Systems (NeurIPS). (Spotlight Paper)

• Stutz, T., Landeros, A., Xu, J., Sinsheimer, J. S., Lange, K. and Sehl, M. E (2021). Stochastic Simulation Algorithms for Interacting Particle Systems. PLOS One.

• Bu, F., Aiello, A., Xu, J.* and Volfovsky, A* (2020). Likelihood-based Inference for Partially Observed Epidemics on Dynamic Networks. Journal of the American Statistical Association. (SBSS Student Paper Award)

• Chakraborty, S.*, Paul, D.*, Das, S. and Xu, J. (2020). Entropy Weighted Power k-Means Clustering. Artificial Intelligence and Statistics (AISTATS).

• Xu, J., Koelle, S., Wu, C., Guttorp, P., Dunbar, C. E., Abkowitz, J. L. and Minin, V. N. (2019). Statistical Inference for Partially Observed Branching Processes, with Application to Cell Lineage Tracking of in vivo Hematopoiesis. The Annals of Applied Statistics.

• Xu, J. and Lange, K (2019). Power k-Means Clustering. International Conference on Machine Learning (ICML). (Long Oral)

• Won, J., Xu, J and Lange, K. (2019). Projection onto Minkowski Sums with Application to Constrained Learning. International Conference on Machine Learning (ICML). (Long Oral)

• Xu, J., Wang, Y., Guttorp, P. and Abkowitz, J. L. (2018). Visualizing Hematopoiesis as a Stochastic Process. Blood.

• Ho, L., Xu, J., Crawford, F. W., Minin, V. N. and Suchard, M. A. (2018). Birth/birth-death Processes and their Computable Transition Probabilities with Biological Applications. Journal of Mathematical Biology.

• Xu, J., Chi, E., Yang, M. and Lange, K. (2018). A Majorization-minimization Algorithm for Split Feasibility Problems. Computational Optimization and Applications.

• Xu, J., Chi, E. and Lange, K. (2018). Generalized Linear Model Regression under Distance-to-set Penalties. Neural Information Processing Systems (NeurIPS). (Spotlight Paper)

• Letcher, A.*, Trišović, J.*, Cademartori, C., Chen, X. and Xu, J. (2018). Automatic Conflict Detection in Police Body-Worn Audio. Proc. IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP). (MAA Outstanding Student Research Award)

• Hardin, W., Li, R., Xu, J., Shelton, A., Alas G., Minin, V. N. and Paredez, A. R. (2017). Myosin-independent cytokinesis in Giardia Utilizes Flagella to Coordinate Force Generation and Direct Membrane Trafficking. Proceedings of the National Academy of Sciences.

• Koelle, S., Wu, C., Xu, J., Lu, R., Li, B., Donahue, R. E. and Dunbar, C. E. (2017). Quantitative Stability of Hematopoietic Stem and Progenitor Cell Clonal Output in Rhesus Macaques Receiving Transplants. Blood.

• Xu, J., Koelle, S., Wu, C., Guttorp, P., Dunbar, C. E., Abkowitz, J. L. and Minin, V. N. (2016). Stochastic Modeling of Hematopoietic Stem and Progenitor Cell Barcoding Data from Rhesus Macaques Challenges the Classic Model of Hematopoiesis. Blood.

• Xu, J., Guttorp, P., Kato-Maeda, M. and Minin, V. N. (2015). Likelihood-based Inference for Discretely Observed Birth-death-shift Processes, with Applications to Evolution of Mobile Genetic Elements. Biometrics. (David P. Byar Paper Competition Award)

• Xu, J. and Minin, V. N. (2015). Efficient Transition Probability Computation for Continuous-time Branching Processes via Compressed Sensing. Uncertainty in Artificial Intelligence (UAI).

• Foti, N.*, Xu, J.*, Laird, D. and Fox, E. B. (2015). Stochastic Variational Inference for Hidden Markov Models. Neural Information Processing Systems (NeurIPS).

• Huber, M. L., McCall, E., Rozenfeld, D. and Xu, J. (2012). Bounds on the Artificial Phase Transition for Perfect Simulation of Repulsive Point Processes. Involve.

Software

• QNMM: R package for quasi-Newton acceleration of MM and EM algorithms

• SKFR: R and Julia code for sparse k-means with feature ranking

• CoEpiNet: R code for inference for partially observed epidemics over dynamic contact networks

• EWP: R code for power k-means clustering with entropy-based feature weighing

• MinkowskiProjection: Matlab code for projection onto Minkowski sums of sets

• splitFeas: R package, MM algorithms for multi-set split feasibility problems

• branchCorr: R package, M-estimation for partially observed stochastic compartmental models

• bdsem: R package, MLE and EM inference for discretely observed multi-type branching processes

• pysvihmm: Python implementation of stochastic variational inference for hidden Markov models

• multiBD: R package, likelihood inference for partially observed multivariate birth-death processes

• hematopoiesisSimulator: Java GUI for simulating and visualizing stochastic models of hematopoiesis

Please email me for any code not yet released in a completed package.

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