Boaz Barak

Boaz Barak
Name	Boaz Barak
Birth date	1974
Nationality	Israeli-American
Fields	Computer science, theoretical computer science, cryptography
Workplaces	Harvard University, Massachusetts Institute of Technology, Princeton University, Weizmann Institute of Science
Alma mater	Hebrew University of Jerusalem, Princeton University
Doctoral advisor	Madhu Sudan
Known for	Probabilistically Checkable Proofs, Fourier analysis of Boolean functions, complexity theory, cryptography

Boaz Barak is an Israeli-American theoretical computer scientist known for contributions to computational complexity, cryptography, and the analysis of algorithms. He is a professor whose work spans probabilistically checkable proofs, hardness of approximation, pseudorandomness, and Boolean function analysis, and he has authored influential texts and lecture notes used across universities. Barak's research intersects with institutions and figures in theoretical computer science and cryptography, and his students and collaborators include leading scholars in fields such as algorithms, learning theory, and mathematical foundations.

Early life and education

Born in Israel, Barak completed undergraduate studies at the Hebrew University of Jerusalem where he was exposed to research groups linked to the Weizmann Institute of Science and collaborations with scholars from Tel Aviv University and Technion – Israel Institute of Technology. He pursued doctoral studies at Princeton University under advisor Madhu Sudan, working in an environment connected to researchers at Bell Labs, Microsoft Research, and the Institute for Advanced Study. His Ph.D. thesis and early publications were developed alongside contemporaries from Carnegie Mellon University, Massachusetts Institute of Technology, and University of California, Berkeley.

Academic career

Barak held postdoctoral and faculty positions that placed him within networks at premier institutions, including appointments at Harvard University and visiting roles at Massachusetts Institute of Technology. He later joined the faculty at a major research university, collaborating with groups at Princeton University, Stanford University, and the California Institute of Technology. His teaching and mentoring connected graduate students to research strands active at IBM Research, Google Research, and the Simons Institute for the Theory of Computing. Barak has delivered invited lectures at conferences such as the ACM Symposium on Theory of Computing, the IEEE Symposium on Foundations of Computer Science, and the International Congress of Mathematicians satellite workshops, and he has organized programs with the National Science Foundation and the European Research Council.

Research contributions

Barak's research contributions include advances in probabilistically checkable proofs (PCP), hardness of approximation, and the interface between complexity theory and cryptography. He has contributed to foundational results related to PCP theorems that tie into work by scholars at Rutgers University, University of Chicago, and Columbia University, and his collaborations extend to researchers from University of Toronto and University of Washington. Barak developed techniques in pseudorandomness linking to constructions studied at ETH Zurich and to derandomization projects at University of Illinois Urbana-Champaign and Georgia Institute of Technology.

A central theme in his work is the Fourier analysis of Boolean functions and its applications to learning theory, property testing, and social choice, connecting to contributions by researchers at Yale University, Cornell University, and New York University. His results on interactive proof systems and zero-knowledge proofs relate to canonical works from Stanford University and Columbia University, and his cryptographic constructions interplay with research from Tel Aviv University and Technion – Israel Institute of Technology. Barak's collaborative publications often bridge to applied areas, engaging investigators at Amazon, Facebook AI Research, and academic groups at University of Pennsylvania and Princeton University.

Barak has also explored complexity-theoretic barriers and lower bounds that interface with algorithmic questions addressed by teams at Imperial College London, University of Cambridge, and Oxford University. His work on sum-of-squares proofs and semidefinite programming connects to developments at ETH Zurich and the Simons Institute for the Theory of Computing, contributing to a broader program on approximation algorithms and hardness evidence.

Awards and honors

Barak's recognition includes prizes and fellowships that reflect contributions to theoretical computer science and cryptography. He has received accolades comparable to awards granted by organizations such as the ACM, the IEEE, and the Simons Foundation, and he has been supported by grant programs from the National Science Foundation and national research councils. Invitations to deliver named lectures and keynote addresses at venues like the International Colloquium on Automata, Languages and Programming and the Symposium on Theory of Computing attest to his standing in the community. Barak's students and coauthors have received competitive awards from institutions including the European Research Council and national academies.

Selected publications

- Barak, B.; authorship and coauthorship spanning topics in probabilistically checkable proofs, pseudorandomness, and cryptography; papers published in proceedings of the ACM Symposium on Theory of Computing and the IEEE Symposium on Foundations of Computer Science. - Monographs and lecture notes by Barak used in graduate instruction at Harvard University, Princeton University, and Massachusetts Institute of Technology on topics including complexity theory, cryptography, and Boolean function analysis. - Collaborative works with researchers from Carnegie Mellon University, Stanford University, and University of California, Berkeley on hardness of approximation, learning theory, and semidefinite programming; articles in journals associated with the American Mathematical Society and conference proceedings of the International Colloquium on Automata, Languages and Programming. - Contributions to cryptographic literature linked to zero-knowledge proofs and interactive proofs, appearing alongside research from Tel Aviv University, Weizmann Institute of Science, and Technion – Israel Institute of Technology.

Category:Theoretical computer scientists Category:Israeli computer scientists Category:American computer scientists