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Electronic Colloquium on Computational Complexity

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TR25-157 | 8th September 2025
Tejas Nareddy, Abhishek Mishra

Recovery Reductions, Conjectures, and Barriers

We introduce and initiate the study of a new model of reductions called the random noise model. In this model, the truth table $T_f$ of the function $f$ is corrupted on a randomly chosen $\delta$-fraction of instances. A randomized algorithm $\mathcal{A}$ is a $\left(t, \delta, 1-\varepsilon\right)$-recovery reduction for $f$ if:

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TR25-156 | 22nd October 2025
Young Kun Ko

Unifying the Landscape of Super-Logarithmic Dynamic Cell-Probe Lower Bounds

We prove a general translation theorem for converting one-way communication lower bounds over a product distribution to dynamic cell-probe lower bounds.

Specifically, we consider a class of problems considered in [Pat10] where:
1. $S_1, \ldots, S_m \in \{0, 1\}^n$ are given and publicly known.
2. $T ... more >>>


TR25-155 | 22nd October 2025
Young Kun Ko

Lower Bounds for Linear Operators

We consider a static data structure problem of computing a linear operator under cell-probe model. Given a linear operator $M \in \mathbb{F}_2^{m \times n}$, the goal is to pre-process a vector $X \in \mathbb{F}_2^n$ into a data structure of size $s$ to answer any query $ {\left\langle M_i , X ... more >>>



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