Search Results for author: Supratik Chakraborty

Found 9 papers, 2 papers with code

Network Inversion of Binarised Neural Nets

no code implementations19 Feb 2024 Pirzada Suhail, Supratik Chakraborty, Amit Sethi

While the deployment of neural networks, yielding impressive results, becomes more prevalent in various applications, their interpretability and understanding remain a critical challenge.

Computational Efficiency

Exact ASP Counting with Compact Encodings

1 code implementation19 Dec 2023 Mohimenul Kabir, Supratik Chakraborty, Kuldeep S Meel

In recent years, there has been growing interest in problems beyond satisfiability, such as model counting, in the context of ASP.

Auditable Algorithms for Approximate Model Counting

no code implementations19 Dec 2023 Kuldeep S. Meel, Supratik Chakraborty, S. Akshay

Since $n$ is often large, we ask if the count of variables in the certificate can be reduced -- a crucial question for potential implementation.

Projected Model Counting: Beyond Independent Support

no code implementations18 Oct 2021 Jiong Yang, Supratik Chakraborty, Kuldeep S. Meel

We show that in several such cases, we can identify a set of variables, called upper bound support (UBS), that is not necessarily a subset of the projection set, and yet counting models projected on UBS guarantees an upper bound of the true projected model count.

Synthesizing Pareto-Optimal Interpretations for Black-Box Models

no code implementations16 Aug 2021 Hazem Torfah, Shetal Shah, Supratik Chakraborty, S. Akshay, Sanjit A. Seshia

For a given black-box, our approach yields a set of Pareto-optimal interpretations with respect to the correctness and explainability measures.

A Normal Form Characterization for Efficient Boolean Skolem Function Synthesis

no code implementations29 Apr 2021 Preey Shah, Aman Bansal, S. Akshay, Supratik Chakraborty

Additionally, a specification admits a polynomial-sized functional solution iff there exists a semantically equivalent polynomial-sized SAUNF representation.

Cryptanalysis

Constrained Sampling and Counting: Universal Hashing Meets SAT Solving

no code implementations21 Dec 2015 Kuldeep S. Meel, Moshe Vardi, Supratik Chakraborty, Daniel J. Fremont, Sanjit A. Seshia, Dror Fried, Alexander Ivrii, Sharad Malik

Constrained sampling and counting are two fundamental problems in artificial intelligence with a diverse range of applications, spanning probabilistic reasoning and planning to constrained-random verification.

Approximate Probabilistic Inference via Word-Level Counting

1 code implementation24 Nov 2015 Supratik Chakraborty, Kuldeep S. Meel, Rakesh Mistry, Moshe Y. Vardi

Techniques based on bit-level (or Boolean) hash functions require these problems to be propositionalized, making it impossible to leverage the remarkable progress made in SMT (Satisfiability Modulo Theory) solvers that can reason directly over words (or bit-vectors).

Distribution-Aware Sampling and Weighted Model Counting for SAT

no code implementations11 Apr 2014 Supratik Chakraborty, Daniel J. Fremont, Kuldeep S. Meel, Sanjit A. Seshia, Moshe Y. Vardi

We present a novel approach that works with a black-box oracle for weights of assignments and requires only an {\NP}-oracle (in practice, a SAT-solver) to solve both the counting and sampling problems.

Computational Efficiency

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