Skip to content
TILens What matters today in tech v0.3.0
Theme

Daily edition · Algorithms

The daily ledger

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

18 Sep 2026 edition

57 articles · 3 sources · 57 papers ·

Top topics: Algorithms · AI

Algorithms

Optimal Sparsifiers for Minkowski Sums and Sums of Seminorms

arXiv:2609.20238v1 Announce Type: new Abstract: We extend the recent work of Reis and Rothvoss on sparsifying sums of $\ell_1$ norms to the more general task of sparsifying (Minkowski) sums of centrally symmetric,…

Source: arXiv cs.DS Arpon Basu, Joshua Brakensiek, Yeyuan Chen, Aaron Putterman, Victor Reis, Zihan Zhang
Algorithms

Polynomial Time Algorithms for the Kadison-Singer Problem

arXiv:2609.19794v1 Announce Type: new Abstract: Marcus, Spielman, and Srivastava [MSS15] established the existence of Kadison--Singer partitions. We provide polynomial-time algorithms for the Kadison--Singer problem.…

Source: arXiv cs.DS Zhao Song, Song Yue
Algorithms

Optimal Simulated Annealing for Partition Function Estimation

arXiv:2609.20337v1 Announce Type: new Abstract: In this note, we give a simple analysis of a non-adaptive simulated annealing algorithm for estimating the partition function of Gibbs distributions. This yields the most…

Source: arXiv cs.DS Heng Guo, Hongyang Liu, Xiongxin Yang, Yitong Yin, Yiyao Zhang
Algorithms

Almost Optimal FPT Inapproximability for k-SetCover

arXiv:2609.19685v1 Announce Type: cross Abstract: We show that $\bigl(\frac{\log n}{\log\log n}\bigr)$-approximate parameterized $k$-SetCover is W[1]-hard, and has no $n^{o(k/\log k)}$-time algorithms under ETH. This…

Source: arXiv cs.DS Venkatesan Guruswami, Xuandi Ren
Algorithms

Interactive proofs for verifying (quantum) learning and testing

arXiv:2410.23969v3 Announce Type: replace-cross Abstract: We consider the problem of testing and learning from data in the presence of resource constraints, such as limited memory or weak data access, which place…

Source: arXiv cs.DS Matthias C. Caro, Jens Eisert, Marcel Hinsche, Marios Ioannou, Alexander Nietner, Ryan Sweke
Algorithms

Counting Triangles in Graph Streams with Repeatable and Forgettable Edges

arXiv:2609.19943v1 Announce Type: new Abstract: Most existing graph streaming algorithms assume the ideal scenario where each edge arrives only once. Real-world graph streams, such as communication or transaction logs,…

Source: arXiv cs.DS Sourav Chakraborty, Debarshi Chanda, Arijit Ghosh, A. Pavan, Chhaya Trehan, N. V. Vinodchandran
Algorithms

Emergency Vertex Cover

arXiv:2609.20061v1 Announce Type: new Abstract: The Minimum Vertex Cover problem is a fundamental combinatorial optimization problem, aiming to identify a minimum subset of vertices in a graph such that every edge is…

Source: arXiv cs.DS Eric Angel, Evangelos Bampas, Evripidis Bampis, Vincent Chau, Johanne Cohen, Alexander Kononov, Yizheng Zhang
Algorithms

Fast FPRAS for the Permanent

arXiv:2609.20717v1 Announce Type: new Abstract: We give an FPRAS for the permanent of an $n\times n$ $0/1$ matrix with running time $\widetilde{O}(n^{3.5}\varepsilon^{-2})$. Our algorithm extends to a strongly…

Source: arXiv cs.DS Xiaoyu Chen, Heng Guo, Eric Vigoda, Xiongxin Yang
Algorithms

A Refined Analysis of the Sequential Access Theorem for Splay Trees

arXiv:2609.19746v1 Announce Type: new Abstract: A splay tree is a self-adjusting binary search tree that allows access, insertion, and deletion to be performed in amortized $O(\log n)$ time, where $n$ is the number of…

Source: arXiv cs.DS Naonori Kakimura, Yoshihiko Terai
Algorithms

A quantitative tree-likeness bound from average hyperbolicity

arXiv:2609.18023v2 Announce Type: replace-cross Abstract: Chatterjee and Sloman proved that a bounded measurable similarity function with sufficiently small average Gromov hyperbolicity admits a tree representation with…

Source: arXiv cs.DS Joon-Hyeok Yim
Algorithms

Bidirectional Dijkstra's Algorithm is Instance-Optimal

arXiv:2410.14638v4 Announce Type: replace Abstract: Although Dijkstra's algorithm has near-optimal time complexity for the problem of finding a shortest path from a given vertex $s$ to a given vertex $t$, in practice…

Source: arXiv cs.DS Bernhard Haeupler, Richard Hlad\'ik, Vaclav Rozhon, Robert E. Tarjan, Jakub T\v{e}tek
Algorithms

Improved Algorithms for Beck--Fiala with Bounded Sets

arXiv:2609.19714v1 Announce Type: new Abstract: We give an efficient algorithm with improved algorithmic guarantees for the (offline) Beck--Fiala problem when the sets have bounded size. Let $A$ be an arbitrary matrix…

Source: arXiv cs.DS Dylan J. Altschuler

Showing 1 day · 57 items available