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cs.DS updates on arXiv.org

Characterizations of Admissible Objective Functions for Hierarchical Clustering Partial Optimality in the Preordering Problem High-accuracy log-concave sampling with stochastic queries Learning to Approximate Uniform Facility Location via Graph Neural Networks Linear Regression with Unknown Truncation Beyond Gaussian Features Adaptive Power Iteration Method for Differentially Private PCA Finite and Corruption-Robust Regret Bounds in Online Inverse Linear Optimization under M-Convex Action Sets Characterizing the Effect of Noise in Language Generation in the Limit Learning Mixture Models via Efficient High-dimensional Sparse Fourier Transforms Variance Computation for Weighted Model Counting with Knowledge Compilation Approach Deterministic Coreset for Lp Subspace A Distribution Testing Approach to Clustering Distributions Online Algorithms for Repeated Optimal Stopping: Balancing Baseline Guarantees and Regret Learned Static Function Data Structures Optimal hypersurface decision trees 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k-SAT to k-CSP: Two Generalized Algorithms On Using Unsatisfiability for Solving Maximum Satisfiability Circumspect descent prevails in solving random constraint satisfaction problems Clustering with Lattices in the Analysis of Graph Patterns Clustering Co-occurrence of Maximal Frequent Patterns in Streams A Prototype for Educational Planning Using Course Constraints to Simulate Student Populations A Backtracking-Based Algorithm for Computing Hypertree-Decompositions Lossless fitness inheritance in genetic algorithms for decision trees Cascade hash tables: a series of multilevel double hashing schemes with O(1) worst case lookup time An Algorithm to Determine Peer-Reviewers Fast Lexically Constrained Viterbi Algorithm (FLCVA): Simultaneous Optimization of Speed and Memory Nonrepetitive Paths and Cycles in Graphs with Application to Sudoku Summarization Techniques for Pattern Collections in Data Mining The Munich Rent Advisor: A Success for Logic Programming on the Internet On Concise 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Differentially private graph coloring
Michael Xie, Jiayi Wu, Dung Nguyen, Aravind Srinivasan · 2026-02-14 · via cs.DS updates on arXiv.org

Differential Privacy is the gold standard in privacy-preserving data analysis. This paper addresses the challenge of producing a differentially edge-private vertex coloring. In this paper, we present two novel algorithms to approach this problem. Both algorithms initially randomly colors each vertex from a fixed size palette, then applies the exponential mechanism to locally resample colors for either all or a chosen subset of the vertices. Any non-trivial differentially edge private coloring of graph needs to be defective. A coloring of a graph is k defective if all vertices of the graph share it's assigned color with at most k of its neighbors. This is the metric by which we will measure the utility of our algorithms. Our first algorithm applies to d-inductive graphs. Assume we have a d-inductive graph with n vertices and max degree $Δ$. We show that our algorithm provides a \(3ε\)-differentially private coloring with \(O(\frac{\log n}ε+d)\) max defectiveness, given a palette of size $Θ(\fracΔ{\log n}+\frac{1}ε)$ Furthermore, we show that this algorithm can generalize to $O(\fracΔ{cε}+d)$ defectiveness, where c is the size of the palette and $c=O(\fracΔ{\log n})$. Our second algorithm utilizes noisy thresholding to guarantee \(O(\frac{\log n}ε)\) max defectiveness, given a palette of size $Θ(\fracΔ{\log n}+\frac{1}ε)$, generalizing to all graphs rather than just d-inductive ones.