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Daily edition · Algorithms

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TILens turns technical updates into a focused daily brief: official releases, trusted reporting, and practitioner analysis, deduplicated and organized by topic.

25 Sep 2026 edition

60 articles · 3 sources · 60 papers ·

Top topics: Algorithms · AI

Algorithms

Optimal Quantum State Testing Even with Limited Entanglement

arXiv:2604.07460v2 Announce Type: replace-cross Abstract: In this work, we consider the fundamental task of quantum state certification: given copies of an unknown quantum state $\rho$, test whether it matches some…

Source: arXiv cs.DS Chirag Wadhwa, Sitan Chen
Algorithms

Optimal spectrum estimation

arXiv:2609.30171v1 Announce Type: cross Abstract: We prove that the spectrum of an unknown $d$-dimensional quantum state can be estimated to error $\varepsilon$ in total variation distance using \[…

Source: arXiv cs.DS Ainesh Bakshi, Apoorv Vikram Singh, Xinyu Tan
Algorithms

Strongly Refuting Semirandom Linear Systems in Subexponential Time

arXiv:2609.30052v1 Announce Type: new Abstract: In this paper, we consider the problem of refuting $\mathbb{F}_2$-linear equations with random right-hand sides. Formally, we give a sub-exponential $2^{O(n/\log n)}$-time…

Source: arXiv cs.DS Pravesh K. Kothari, Andrew D. Lin, Peter Manohar
Algorithms

Online Bin Packing with Per-Bin Maximum Delay

arXiv:2609.29589v1 Announce Type: new Abstract: We study online bin packing with per-bin maximum delay: each sealed bin incurs a unit opening cost plus the longest waiting time among its items. Offline, this becomes a…

Source: arXiv cs.DS Tianhang Lu, Runtian Ren, Shengcai Liu
Algorithms AI

A Tight Analysis of Khatri-Rao Oblivious Subspace Embeddings

arXiv:2608.28094v3 Announce Type: replace Abstract: We study random sketching matrices with Khatri-Rao structure. In particular, we consider the Khatri-Rao product (i.e., column-wise tensor product) $A_1\odot\cdots\odot…

Source: arXiv cs.DS Lorenzo Beretta, Cameron Musco
Algorithms

A Tight Cycle-Cover Inequality for Shortest Common Superstring

arXiv:2609.27921v2 Announce Type: replace Abstract: In the Shortest Common Superstring problem (SCS), one is given a finite set of strings and is asked to find a shortest string containing every input string as a…

Source: arXiv cs.DS Nikolai Chukhin, Alexander S. Kulikov, Ivan Mihajlin, Alexander Smal
Algorithms

Path Enumeration by Position-Visit Counts in Recombining Trinomial Trees

arXiv:2510.02727v2 Announce Type: replace Abstract: Recombining trinomial trees are a workhorse for modeling discrete-event systems in option pricing, logistics, and feedback control. Because each node stores a…

Source: arXiv cs.DS Ethan Torres, Ramavarapu Sreenivas, Richard Sowers
Algorithms

Locally Approximating the Top Eigenvector of Bounded Entry Matrices

arXiv:2607.08556v2 Announce Type: replace Abstract: We provide a local computation algorithm to approximate the top eigenvector $x \in \mathbb{R}^n$ of a symmetric matrix $A \in \mathbb{R}^{n \times n}$ with entries…

Source: arXiv cs.DS Nicolas Menand, Erik Waingarten
Algorithms

On Kernels and Leaves: Searching for Bare and Lush Trees

arXiv:2609.29451v1 Announce Type: new Abstract: We study a variation of the classical Maximum (Minimum) Leaf Spanning Tree problem. In many applications, Depth-First Search (DFS) is used to compute a spanning tree of a…

Source: arXiv cs.DS Jesse Beisegel, Ekkehard K\"{o}hler, Robert Scheffler, Martin Strehler
Algorithms

Linear-Time FPT Algorithm for Surface Disjoint Paths via Surface Cutting

arXiv:2609.29324v1 Announce Type: new Abstract: We study the \textsc{$k$-Disjoint Paths} problem on a graph embedded on a surface with bounded Euler genus. Given a graph $G$ with $n$ vertices and $k$ vertex pairs…

Source: arXiv cs.DS Kyungjin Cho, Eunjin Oh, Sebastian Wiederrecht
Algorithms

A Proof of the Most Informative Boolean Function Conjecture

arXiv:2609.24931v2 Announce Type: replace Abstract: Let $X$ be uniform on $\{-1,1\}^n$, let $Y$ be obtained by passing its coordinates independently through a binary symmetric channel with crossover probability $p$, and…

Source: arXiv cs.DS Zijie Chen, Amin Gohari, Adel Javanmard, Honghao Lin, Vahab Mirrokni, Chandra Nair, David P. Woodruff
Algorithms

Polynomial Time Algorithms for the Kadison-Singer Problem

arXiv:2609.19794v2 Announce Type: replace Abstract: Marcus, Spielman, and Srivastava [MSS15] established the existence of Kadison--Singer partitions. We provide polynomial-time algorithms for the Kadison--Singer…

Source: arXiv cs.DS Zhao Song, Song Yue

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