Jennifer Tour Chayes

Picture of Jennifer Chayes

Jennifer Tour Chayes is Associate Provost of the Division of Computing, Data Science, and Society and Dean of the School of Information at the University of California, Berkeley, where she is also Professor of Electrical Engineering and Computer Sciences, Mathematics, Statistics, and Information. She is deeply committed to increasing racial and gender diversity in science, technology, engineering, and mathematics (STEM).

Chayes’ research areas include phase transitions in computer science, structural and dynamical properties of networks including graph algorithms, and applications of machine learning. She is one of the inventors of the field of graphons, which are widely used for the machine learning of large-scale networks. Her prior work in the modeling and analysis of random, dynamically growing graphs, is used to model the internet, the World Wide Web, and social and economic networks. Her more recent work focuses on machine learning, including applications in cancer immunotherapy, ethical decision-making, and climate change. She is the co-author of more than 150 scientific papers and the co-inventor of 30 patents.

Prior to joining UC Berkeley in 2020, Chayes worked at Microsoft Research for 23 years. She was Technical Fellow and Managing Director of Microsoft Research New England in Cambridge, Massachusetts, which she co-founded in 2008, Microsoft Research New York City, which she co-founded in 2012, and Microsoft Research Montreal, which she co-founded in 2017. Chayes developed Microsoft Research laboratories into world-renowned multidisciplinary centers, bringing together computer scientists, mathematicians, physicists, social scientists, and biologists. Chayes co-founded the Theory Group at Microsoft Research and was Research Area Manager for Mathematics, Theoretical Computer Science, and Cryptography. Among her contributions to Microsoft technologies are the development of methods to analyze the structure and behavior of various networks, the design of auction algorithms, and the design and analysis of various business models for the online world. Before working at Microsoft, Chayes was Professor of Mathematics at UCLA.

She has received numerous awards for leadership and scientific contributions, including the Anita Borg Institute Women of Vision Leadership Award, the Society for Industrial and Applied Mathematics’ (SIAM) John von Neumann Lecture Award, the Association for Computing Machinery’s (ACM) Distinguished Service Award, and honorary doctorates from Bard College and Leiden University. Chayes is a member of the American Academy of Arts and Sciences and the National Academy of Sciences. She is a fellow of the American Association for the Advancement of Science, the American Mathematical Society, the Association of Computing Machinery, the Association of Women in Mathematics, and the Fields Institute.

Chayes is a member of numerous advisory boards and steering and oversight committees, including the UC Center for Data-Driven Insights and Innovation, the UC Health Governance Task Force, Massachusetts Institute of Technology’s (MIT) Institute for Data, Systems, and Society and Schwarzman College of Computing, Harvard University’s Institute for Applied and Computational Science, the Howard Hughes Medical Institute (HHMI) Janelia Campus, the International Centre for Theoretical Sciences in Bangalore, India, the Center for Minorities and People with Disabilities in IT, the Systems and Machine Learning conference, the Climate Change AI initiative, and the National Science Foundation’s (NSF) Institute for AI and Fundamental Interactions. She is also a member of the selection committee for the VinFuture Prize.

She received a bachelor’s degree in biology and physics from Wesleyan University – graduating first in her class – and earned her Ph.D. in mathematical physics at Princeton. She completed her postdoctoral work in mathematics and physics at Harvard and Cornell.

Chayes is married to Christian Borgs, her primary scientific collaborator and Professor of Electrical Engineering and Computer Sciences at UC Berkeley.

For more details, download the detailed CV here.

Selected Publications

Graph Limits, Graphons and Nonparametric Network Models

PDF Counting graph homomorphisms (with C. Borgs, L. Lovasz, V. Sos, B. Szegedy and K. Vesztergombi) in Topics in Discrete Mathematics (eds. M. Klazar, J. Kratochvil, M. Loebl, J. Matousek, R. Thomas, P. Valtr), 315-371, Springer (2006).
PDF Graph limits and parameter testing (with C. Borgs, L. Lovasz, V. Sos, B. Szegedy and K. Vesztergombi) Proceedings of the 38rd Annual ACM Symposium on the Theory of Computing (STOC), 261-270 (2006).
PDF Convergent sequences of dense graphs I: Subgraph frequencies, metric properties and testing (with C. Borgs, L. Lovasz, V. Sos, and K. Vesztergombi) Advances in Math. 219, 1801-1851 (2008).
PDF Convergent sequences of dense graphs II: Multiway cuts and statistical physics (with C. Borgs, L. Lovasz, V. Sos, and K. Vesztergombi) Ann. of Math. 176, 151-219 (2012).
PDF Moments of two-variable functions and the uniqueness of graph limits (with C. Borgs and L. Lovasz) GAFA 19, 1597-1619 (2010).
PDF Limits of randomly grown graph sequences (with C. Borgs, L. Lovasz, V. Sos, K. Veszterbombi) Eur. J. Comb. 32, 985-999 (2011).
PDF Left and right convergence of graphs with bounded degree (with C. Borgs, J. Kahn, L. Lovasz) Random Struct. Alg. 42, 1-28 (2013).
PDF Asymptotic behavior and distributional limits of preferential attachment graphs (with N. Berger, C. Borgs, A. Saberi) Ann. Probab. 42(1), 1-40 (2014).
PDF Convergent sequences of sparse graphs: A large deviations approach (with C. Borgs, and D. Gamarnik) Random Struct. Alg. 51, 52-89 (2017).
PDF An Lp theory of sparse graph convergence I: limits, sparse random graph models, and power law distributions (with C. Borgs, H. Cohn and Y. Zhao). Trans. Amer. Math. Soc. 372, 3019–3062 (2019).
PDF An Lp theory of sparse graph convergence II: LD convergence, quotients, and right convergence (with C. Borgs, H. Cohn and Y. Zhao) Annals of Prob. 45, 337-396 (2018).
PDF Graphons: a nonparametric method to model, estimate, and design algorithms for massive networks (with C. Borgs). Proceedings of the 18th ACM Conference on Economics and Computation (EC’17), 665–672, (2017).
PDF Sparse exchangeable graphs and their limits via graphon processes (with C. Borgs, H. Cohn and N. Holden) Journal of Machine Learning Research 18 (210), 1-71 (2018).
PDF Sampling perspectives on sparse exchangeable graphs (with C. Borgs, H. Cohn, V. Veitch). Annals of Prob. 47 (5), 2754-2800 (2019).
PDF Identifiability for graphexes and the weak kernel metric (with C. Borgs, H. Cohn, L. M. Lovasz). In: I. Brny, G. Katona, A. Sali, Attila (Eds.), Building Bridges II - Mathematics of Laszlo Lovasz. Bolyai Society Mathematical Studies, Vol. 28, 29–157 (2020).
PDF Limits of sparse conguration models and beyond: graphexes and multi-graphexes (with C. Borgs, S. Dhara, and S. Sen). Preprint (2019).
PDF A correction to Kallenberg's theorem for jointly exchangeable random measures (with C. Borgs, S. Dhara, and S. Sen). Preprint (2019).
PDF A large deviation principle for block models (with C. Borgs, J. Gaudio, S. Petti and S. Sen). Preprint (2020).

Mechanism Design, Social Choice and Recommendation Systems

PDF Multi-unit auctions with budget-constrained bidders (with C. Borgs, N. Immorlica, M. Mahdian and A. Saberi) Proceedings of the 6th ACM Conference on Electronic Commerce (EC), 44-51 (2005).
PDF Bid optimization in online advertisement auctions (with C. Borgs, O. Etesami, N. Immorlica and M. Mahdian) 2nd Workshop on Sponsored Search Auctions (2006) and Proceedings of the 16th international conference on World Wide Web (WWW), 531-540 (2007).
PDF The myth of the folk theorem (with C. Borgs, N. Immorlica, A. Kalai, V. Mirrokni and C. Papadimitriou) Proceedings of the 40th Annual ACM Symposium on the Theory of Computing (STOC) (2008).
PDF Trust-based recommendation systems: An axiomatic approach (with R. Andersen, C. Borgs, U.Feige, A. Flaxman, A. Kalai, V. Mirrokni and M. Tennenholtz) Proceedings of the 17th international conference on World Wide Web (WWW), 199-208 (2008).
PDF A novel approach to propagating distrust (with C. Borgs, A. Kalai, A. Malekiany, M. Tennenholtz) Proceedings of the 6th International Workshop on Internet and Network Economics (WINE) 87-105 (2010).
PDF Game-theoretic models of information overload in social networks (with C. Borgs, B. Karrer, B. Meeder, R. Ravi, R. Reagans and A. Sayedi) Proceedings of the 7th Workshop on Algorithms and Models for the Web Graph (WAW) 146-161 (2010).
PDF Fast convergence of natural bargaining dynamics in exchange networks (with Y. Kanoria, M. Bayati, C. Borgs and A. Montanari) Proceedings of the 22nd ACM-SIAM Symposium on Discrete Algorithm (SODA) 1518-1537 (2011).
PDF The hitchhiker's guide to affiliation networks: A game-theoretic approach (with C. Borgs, J. Ding and B. Lucier) Proceedings of the 2nd Symposium on Innovations in Computer Science (ICS) 389-400 (2011).
PDF Pricing and queuing (with C. Borgs, S. Doroudi, M. Harchol-Balter, K. Xu) SIGMETRICS Performance Evaluation Review 40(3): 71-73 (2012).
PDF Priority pricing in queues with a continuous distribution of customer valuations (with S. Doroudi, M. Akan, M. Harchol-Balter, J. Karp, C. Borgs) CMU technical report CMU-CS-13-109 (2013).
PDF The optimal admission threshold in observable queues with state dependent pricing (with C. Borgs, S. Doroudi, M. Harchol-Balter, K. Xu) Probability in the Engineering and Informational Sciences 28, 101-110 (2014).
PDF Optimal multi-period pricing with service guarantees (with O. Candogan, C. Borgs, I. Lobel, and H. Nazerzadeh) Management Science 60, 1792-1811 (2014).
PDF Bargaining dynamics in exchange networks (with M. Bayati, C. Borgs, Y. Kanoria and A. Montanari) J. Econ. Theory 156, 417-454 (2015).
PDF An axiomatic approach to community detection (with C. Borgs, A. Marple, and S.-H. Teng) Proceedings of the 2016 ACM Conference on Innovations in Theoretical Computer Science (ITCS '16), 135-146 (2016).
PDF Thy friend is my friend: iterative collaborative filtering for sparse matrix estimation (with C. Borgs, C.E. Lee, D.Shah). Advances in Neural Information Processing Systems (NIPS) 30, 4718–4729, (2017).
PDF Iterative collaborative filtering for sparse matrix estimation (with C. Borgs, C.E. Lee, D.Shah). Preprint (2017).

Machine Learning, Estimation and Responsible AI

PDF Statistical mechanics of Steiner trees (with M. Bayati, A. Braunstein, A. Ramezanpour, and R. Zecchina) Physical Review Letters 101, 037208 1-4 (2008), reprinted in Virtual Journal of Biological Physics Research 16, August 1 (2008).
PDF Belief-Propagation for weighted b-matchings on arbitrary graphs and its relation to linear programs with integer solutions (with M. Bayati, C. Borgs and R. Zecchina) SIAM Journal of Discrete Mathematics, 25, 989-1011 (2011).
PDF Private graphon estimation for sparse graphs (with C. Borgs and A. Smith) Advances in Neural Information Processing Systems (NIPS) 28, 1369--1377 (2015).
PDF Full version of the above paper.
PDF Consistent nonparametric estimation for heavy-tailed sparse graphs (with C. Borgs, H. Cohn and S. Ganguly) preprint (2015).
PDF Unreasonable effectiveness of learning neural networks: From accessible states and robust ensembles to basic algorithmic schemes (with C. Baldassi, C. Borgs, A. Ingrosso, C. Lucibello, L. Saglietti, and R. Zecchina). Proceedings of the National Academy of Sciences (PNAS) 113, E7655–E7662 (2016).
PDF Entropy-SGD: biasing gradient descent into wide valleys (P. Chaudhari, A. Choromanska, S. Soatto, Y. LeCun, C. Baldassi, C. Borgs, J.T. Chayes, L. Sagun and R. Zecchina). International Conference on Learning Representations (ICLR), 1-19 (2017).
PDF Revealing network structure, condentially: improved rates for node private graphon estimation (with C. Borgs, A. Smith, I. Zadik). Proceedings of the 59 th Annual IEEE Symposium on Foundations of Computer Science (FOCS), 533-543 (2018).
PDF Bias in bios: a case study of semantic representation bias in a high-stakes setting (M. De-Arteaga, A. Romanov, H. Wallach, J. Chayes, C. Borgs, A. Chouldechova, S. Geyik, K. Kenthapadi, A. Kalai). Proceedings of the 2nd Conference on Fairness, Accountability, and Transparency (FAT* '19), 120-128 (2019).
PDF What’s in a name? Reducing bias in bios without access to protected attributes. (A. Romanov, M. De-Arteaga, H. Wallach, J. Chayes, C. Borgs, A. Chouldechova, S. Geyik, K. Kenthapadi, A. Kalai). Proceedings of the 16th Annual Conference of the North American Chapter of the Association for Computational Linguistics (NAACL '19). Best Paper Award.
PDF Algorithmic greenlining: an approach to increase diversity (with C. Borgs, N. Haghtalab, A. Kalai and E. Vitercik). AIII / ACM Conference on Artificial Intelligence, Ethics and Society (AIES) ), 69–76 (2019).
PDF The disparate equilibria of algorithmic decision-making when individuals invest rationally (L. Liu, A. Wilson, N. Haghtalab, A. Kalai, C. Borgs, and J.T. Chayes). Proceedings of the 2020 Conference on Fairness, Accountability, and Transparency (FAT* '20), 381–391 (2020).

Computational Biology

PDF A multifactorial model of T Cell expansion and durable clinical benefit in response to a PD-L1 inhibitor (M. Leiserson, V. Syrgkanis, A. Gilson, M. Dudik, S. Gillett, J. Chayes, C. Borgs, D.F. Bajorin, J. Rosenberg, S. Funt, A. Snyder, L. Mackey). Preprint (2018).
PDF Finding undetected protein associations in cell signaling by belief propagation (with M. Bailly-Bechet, C. Borgs, A. Braunstein, A.Dagkessamanskaia, J. Francois, and R. Zecchina). Proceedings of the National Academy of Sciences (PNAS) 108, 882-887 (2011).
PDF Simultaneous reconstruction of multiple signaling pathways via the prize-collecting Steiner forest problem (N.Tuncbag, A.Braunstein, A.Pagnani, S.C.Huang, J.Chayes, C.Borgs, R.Zecchina, E.Fraenkel), 16th Annual International Conference on Research in Computational Molecular Biology (RECOMB), 287 - 301 (2012) and Journal of Computational Biology 20, 124-136 (2013).
PDF Sharing information to reconstruct patient-specific pathways in heterogeneous diseases (A. Gitter, A. Braunstein, A. Pagnani, C. Baldassi, C. Borgs, J. Chayes, R. Zecchina, E. Fraenkel). Proceedings of the Pacific Symposium on Biocomputing (PSB), 39-50 (2014).

Processes on Networks and Graph Algorithms

PDF On the spread of viruses on the Internet (with N. Berger, C. Borgs and A. Saberi) Proceedings of the 16th ACM-SIAM Symposium on Discrete Algorithm (SODA), 301-310 (2005).
PDF Local computation of pagerank contributions (with R. Andersen, C. Borgs, J. Hopcroft, V. Mirrokni and S. Teng) Proceedings of the 5th Workshop on Algorithms and Models for the Web Graph (WAW), 150-165 (2007).
PDF Robust PageRank and locally computable spam detection features (with R. Andersen, C. Borgs, J. E. Hopcroft, K. Jain, V.S. Mirrokni and S.H. Teng) AIRWeb 2008, 69-76 (2008).
PDF On the stability of web crawling and web search (with R. Andersen, C. Borgs, J. E. Hopcroft, V.S. Mirrokni and S.H. Teng) ISAAC 2008, 680-691 (2008).
PDF How to distribute antidote to control epidemics (with C. Borgs, A. Ganesh, and A. Saberi) Random Struct. Algorithms 37, 204-222 (2010).
PDF We know who you followed last summer: inferring social link creation times in twitter (with B. Meeder, B. Karrer, A. Sayedi, R. Ravi and C. Borgs) Proceedings of the 20th International World Wide Web Conference (WWW), 517-526 (2011).
PDF A sublinear time algorithm for PageRank computations (with M. Brautbar, C. Borgs and S.-H. Teng) Proceedings of the 9th Workshop on Algorithms and Models for the Web Graph (WAW), 41-53 (2012).
PDF The power of local information in social networks (with M. Brautbar, C. Borgs, S. Khanna, B. Lucier) Proceedings of the 8th International Workshop on Internet and Network Economics (WINE), 406 - 419 (2012).
PDF Finding endogenously formed communities (with M.-F. Balcan, M. Braverman, C. Borgs and S.-H. Teng) 24th Annual ACM-SIAM Symposium on Discrete Algorithm (SODA), 767-783 (2013).
PDF Multi-scale matrix sampling and sublinear-time PageRank (with M. Brautbar, C. Borgs and S.-H. Teng) Internet Mathematics 10, 20-48 (2014).
PDF Maximizing social influence in nearly optimal time (with M. Brautbar, C. Borgs and B. Lucier) Proceedings of the 25nd Annual ACM-SIAM Symposium on Discrete Algorithm (SODA), 946-957 (2014).

Network Modeling and Graph Theory

PDF Directed scale-free graphs (with B. Bollobas, C. Borgs and O. Riordan) Proceedings of the 14th Annual ACM-SIAM Symposium on Discrete Algorithms (SODA), 132-139 (2003).
PDF Degree distribution of the FKP network model (with N. Berger, B. Bollobas, C. Borgs and O. Riordan) Proceedings of the 30th International Colloquium on Automata, Languages and Programming (ICALP), 725-738, Lecture Notes in Computer Science 2719 (2003).
PDF Exploring the community structure of newsgroups (with C. Borgs, M. Mahdian and A. Saberi) Proceedings of the 10th ACM SIGKDD International Conference on Knowledge, Discovery and Data Mining (KKD), 783-787 (2004).
DATA Newsgroup cluster data referred to in the above paper.
PDF Competition-induced preferential attachment (with N. Berger, C. Borgs, R. D'Souza and R. D. Kleinberg) Proceedings of the 31st International Colloquium on Automata, Languages and Programming (ICALP), 208-221, Lecture Notes in Computer Science 3142 (2004)
PDF Degree distribution of competition-induced preferential attachment graphs (with N. Berger, C. Borgs, R. D'Souza and R. D. Kleinberg) Combinatorics,  Probability and Computing 14, 697-721 (2005).
PDF Emergence of tempered preferential attachment from optimization (with N. Berger, C. Borgs, R. D'Souza and R. D. Kleinberg) Proceedings of the National Academy of Sciences (PNAS) 104, 6112-6117 (2007), cover article.
PDF Fitting the WHOIS Internet data A short note with technical details left out in the above paper.
PDF First to market is not Everything: An analysis of preferential attachment with fitness (with C. Borgs, C. Daskalakis and S.Roch) Proceedings of the 39th annual ACM Symposium on the Theory of Computing (STOC), 135-144 (2007).

Phase Transitions in Combinatorics and Computer Science

PDF Uniform boundedness of crossing probabilities implies hyperscaling (with C. Borgs, H. Kesten and J. Spencer) Random Structures and Algorithms 15, 368-413 (1999).
PDF The birth of the infinite cluster: Finite-size scaling in percolation (with C. Borgs, H. Kesten and J. Spencer) Communications in Mathematical Physics 224, 153-204 (2001).
PDF The scaling window of the 2-SAT transition (with B. Bollobas, C. Borgs, J.H. Kim and D.B. Wilson) Random Structures and Algorithms 18, 201-256 (2001).
PDF Sharp threshold and scaling window for the integer partitioning problem (with C. Borgs and B. Pittel) Proceedings of the 33rd annual ACM Symposium on the Theory of Computing (STOC), 330-336 (2001).
PDF Phase transition and finite-size scaling for the integer partitioning problem (with C. Borgs and B. Pittel) Random Structures and Algorithms 19, 247-288 (2001).
PDF Constrained integer partitions (with C. Borgs, S. Mertens and B. Pittel) Proceedings of the 6th Latin American Symposium on Theoretical Informatics (LATIN), 59-68, Lecture Notes in Computer Science 2976 (2004).
PDF Phase diagram for the constrained integer partitioning problem (with C. Borgs, S. Mertens and B. Pittel) Random Structures and Algorithms 24, 315-380 (2004).
PDF Random subgraphs of finite graphs: I. The scaling window under the triangle condition (with C. Borgs, R. van der Hofstad, G. Slade and J. Spencer) Random Structures and Algorithms 27, 137-184 (2005).
PDF Random subgraphs of finite graphs: II. The lace expansion and the triangle condition (with C. Borgs, R. van der Hofstad, G. Slade and J. Spencer) Annals of Probability 33, 1886-1944 (2005).
PDF Random subgraphs of finite graphs: III. The phase transition for the n-cube (with C. Borgs, R. van der Hofstad, G. Slade and J. Spencer) Combinatorica 26, 395-410 (2006).
PDF The Kesten-Stigum reconstruction bound is tight for roughly symmetric binary channels (with C. Borgs, E. Mossel and S. Roch) 47th Annual IEEE Symposium on Foundations of Computer Science (FOCS), 518-530 (2006).
PDF Proof of the local REM conjecture for number partitioning I: Constant energy scales (with C. Borgs, S. Mertens and C. Nair) Random Structures and Algorithms 34, 217-240 (2009).
PDF Proof of the local REM conjecture for number partitioning II: Growing energy scales (with C. Borgs, S. Mertens and C. Nair) Random Structures and Algorithms 34, 241-284 (2009).
PDF Percolation on dense graph sequences (with B. Bollobas, C. Borgs and O. Riordan) Ann. Probab. 38, 150-183 (2010).

Monte Carlo Markov Chains and Approximation Algorithms

PDF Torpid mixing of some Monte Carlo Markov Chain algorithms in statistical physics (with C. Borgs, A. Frieze, J.H. Kim, P. Tetali, E. Vigoda and V. Vu) Proceedings of the 40th Annual Symposium on Foundations of Computer Science (FOCS), 218-229 (1999).
PDF On the sampling problem for H-colorings on the hypercubic lattice (with C. Borgs, M. Dyer and P. Tetali) in Graphs, Morphisms and Statistical Physics (eds. J Nesetril and P Winkler),  DIMACS Series in Discrete Mathematics and Theoretical Computer Science 63, 13-28, American Mathematical Society (2004).
PDF Tight bounds for mixing of the Swendsen-Wang algorithm at the Potts transition point (with C. Borgs and P. Tetali) Probab. Theory Relat. Fields 152, 509 - 557 (2012).
PDF Efficient sampling and counting algorithms for the Potts model on Zd at all temperatures (with J. T. Chayes, T. Helmuth, W. Perkins and P. Tetali). Proceedings of the 52nd Annual Symposium on Theory of Computing (STOC), 738-751 (2020).

Zeros of Complex Partition Functions and Lee-Yang Theory

PDF Gibbs states of graphical representations of the Potts model with external fields (with M. Biskup, C. Borgs and R. Kotecky) Journal of Mathematical Physics 41, 1170-1210 (2000).
PDF General theory of Lee-Yang zeros in models with first-order phase transitions (with M. Biskup, C. Borgs, L. Kleinwaks and R. Kotecky) Physical Review Letters 84, 4794-4797 (2000).
PDF Partition function zeros at first-order phase transitions: A general analysis (with M. Biskup, C. Borgs, L. Kleinwaks and R. Kotecky) Communications in Mathematical Physics 251, 79-131 (2004).
PDF Partition function zeros at first-order phase transitions: Piorogov-Sinai theory (with M. Biskup, C. Borgs and R. Kotecky) Journal of Statistical Physics 116, 97-155 (2004).