Avishay TalHi, I'm Avishay, a postdoctoral scholar hosted by Omer Reingold at Stanford's theory group.
During the Fall Semester of 2018 I am a research fellow in the Lower Bounds in Computational Complexity Program in the Simons Institute.
Between September 2015 and July 2017 I was a postdoctoral researcher in the CSDM group at the Institute for Advanced Study and a scientist in the Simons Collaboration on Algorithms and Geometry. In September 2015, I received my PhD from the Weizmann Institute of Science, under the guidance of Ran Raz. Prior to that, I was an MSc student at the Technion under the guidance of Amir Shpilka. I feel very fortunate to have had both Amir and Ran as my mentors. Main Research Interests: - Computational Complexity,
- Analysis of Boolean Functions,
- Circuit and Formula Lower Bounds,
- Query Complexity,
- Pseudorandomness,
- Learning,
- Combinatorics,
- and the connections between Algorithms and Lower Bounds.
My Curriculum Vitae (updated: March 2018). Contact Information Address: Stanford University, William Gates Building, 353 Serra Mall, Wing 4B MC: 9045, Stanford, CA 94305 E-mail: avishay "dot" tal "at" gmail.comPublicationsPseudorandom generators from the second Fourier level and applications to AC0 with parity gatesjoint with Eshan Chattopadhyay, Pooya Hatami and Shachar Lovett. Cubic Formula Size Lower Bounds Based on Compositions with Majorityjoint with Anna Gal and Adrian Trejo Nuñez. Pseudorandom Generators for Width-3 Branching Programs PDFjoint with Raghu Meka and Omer Reingold. [Oded's choices] Oracle Separation of BQP and PH PDFjoint with Ran Raz. [Computational Complexity Blog] [Shtetl-Optimized] [Windows on Theory] [New Scientist] [Quanta] [The Hindu] Video (CMO Oaxaca) Improved Pseudorandomness for Unordered Branching Programs through Local Monotonicity PDFjoint with Eshan Chattopadhyay, Pooya Hatami and Omer Reingold. STOC, 2018. Extractor-Based Time-Space Lower Bounds for Learning PDFjoint with Sumegha Garg and Ran Raz. STOC, 2018. On Constant-Depth Canonical Boolean Circuits for Computing Multilinear Functions PDFjoint with Oded Goldreich. The Choice and Agreement Problems of a Random Function PDFjoint with Or Meir. Information Processing Letters, Volume 133, 2018. Pseudorandom Generators for Low Sensitivity Functions PDF joint with Pooya Hatami. ITCS, 2018. Robust Sensitivity PDF joint with Shachar Lovett and Jiapeng Zhang. SODA, 2018. Lower Bounds for 2-Query LCCs over Large Alphabet PDF joint with Arnab Bhattacharyya and Sivakanth Gopi. RANDOM, 2017. Tight Bounds on The Fourier Spectrum of AC0 PDF Slides CCC, 2017. [Oded's choices] The Bipartite Formula Complexity of Inner-Product is Quadratic PDF STOC, 2017 (merged with "Computing Requires Larger Formulas than Approximating"). Computing Requires Larger Formulas than Approximating PDF Slides TCS+ Talk STOC, 2017 (merged with "The Bipartite Formula Complexity of Inner-Product is Quadratic"). [Oded's choices] Time-Space Hardness of Learning Sparse Parities PDF Slides joint with Gillat Kol and Ran Raz. STOC, 2017. Low-Sensitivity Functions from Unambiguous Certificates PDF joint with Shalev Ben-David and Pooya Hatami. ITCS, 2017. Degree and Sensitivity: Tails of Two Distributions PDF joint with Parikshit Gopalan, Rocco Servedio and Avi Wigderson. (a preliminary version of this paper by Gopalan, Servedio and Wigderson appeared in CCC, 2016). On the Sensitivity Conjecture PDF Slides ICALP, 2016. #SAT Algorithms from Shrinkage PDF Matrix Rigidity of Random Toeplitz Matrices PDF Journal-version Slides (STOC) Slides (longer version) joint with Oded Goldreich. Computational Complexity, 2016 (preliminary version in STOC, 2016). Shrinkage of De Morgan Formulae by Spectral Techniques PDF Slides FOCS, 2014. On Fractional Block SensitivityPDF Journal-version joint with Raghav Kulkarni. CJTCS, 2016. Two Structural Results for Low Degree Polynomials and Applications PDF Video (IAS) Slides (RANDOM) joint with Gil Cohen. RANDOM, 2015. An implementation of the algorithm suggested in Theorem 4.1. On the Structure of Boolean Functions with Small Spectral Norm PDF joint with Amir Shpilka and Ben lee Volk. Computational Complexity, 2015 (preliminary version in ITCS, 2014). Improved Average-Case Lower Bounds for De Morgan Formula Size PDF Journal-version Slides joint with Ilan Komargodski and Ran Raz. SICOMP, 2017 (preliminary version in FOCS, 2013). Properties and Applications of Boolean Function Composition PDF Slides ITCS, 2013. (Best Student Paper) [Oded's choices] On the Degree of Univariate Polynomials Over the Integers PDF Journal-version joint with Gil Cohen and Amir Shpilka. Combinatorica, 2016 (preliminary version in ITCS, 2012). On The Minimal Fourier Degree of Symmetric Boolean FunctionsPDF Journal-version Slides Amir@MSR joint with Amir Shpilka. Combinatorica, 2014 (preliminary version in CCC, 2011). [Richard Lipton's Blog Post] [2] |