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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.

02 Sep 2026 edition

33 articles · 3 sources · 33 papers ·

Top topics: Algorithms

Algorithms

Optimality of Random Regular Graphs in Sparse Network Designs

arXiv:2606.14995v2 Announce Type: replace Abstract: The problems of designing sparse networks arise frequently in resource allocation and operations research. In production systems, for example, sparse process…

Source: arXiv cs.DS Weijia Li, Xiaochun Niu, Yehua Wei, Jiaming Xu
Algorithms

Quantum matrix arithmetics with Hamiltonian evolution

arXiv:2510.06316v3 Announce Type: replace-cross Abstract: The efficient implementation of matrix arithmetic operations underpins the speedups of many quantum algorithms. We develop a suite of methods to perform matrix…

Source: arXiv cs.DS Christopher Kang, Yuan Su
Algorithms

Disproving the Greedy Superstring Conjecture

arXiv:2609.01365v1 Announce Type: new Abstract: The shortest common superstring problem is to find the shortest string that contains every string in a given set as a substring. It is conjectured that the greedy…

Source: arXiv cs.DS Hiroki Shibata
Algorithms

Designing Compact ILPs via Fast Witness Verification

arXiv:2509.25445v3 Announce Type: replace Abstract: The standard formalization of preprocessing in parameterized complexity is given by kernelization. In this work, we depart from this paradigm and study a different…

Source: arXiv cs.DS Micha{\l} W{\l}odarczyk
Algorithms

Finding $b$-colorings Using Feedback Edges

arXiv:2512.14390v2 Announce Type: replace Abstract: A $b$-coloring of a graph is a proper vertex coloring such that each color class contains a vertex that sees all other colors in its neighborhood. The $b$-coloring…

Source: arXiv cs.DS Jakub Balab\'an
Algorithms

On the Instance Optimality of Bidirectional Dijkstra's Algorithm

arXiv:2608.26952v2 Announce Type: replace Abstract: Recent work by Haeupler, Hlad\'ik, Rozhon, Tarjan, and T\v{e}tek on the instance optimality of shortest-path algorithms established several results concerning…

Source: arXiv cs.DS Matic Po\v{z}ar
Algorithms

Finding Shortest Reconfiguration Sequences on Independent Set Polytopes

arXiv:2604.24132v2 Announce Type: replace Abstract: We initiate the study of the shortest reconfiguration problem for independent sets under the adjacency relation derived from the independent set polytope. Given a…

Source: arXiv cs.DS Jean Cardinal, Kevin Mann, Akira Suzuki, Takahiro Suzuki, Yuma Tamura, Xiao Zhou
Algorithms

Kernelization of 2-Club Cluster Edge Deletion on Interval Graphs

arXiv:2609.01021v1 Announce Type: new Abstract: The \emph{$s$-Club Cluster Edge Deletion} problem asks whether, given a graph $G$ and an integer $k$, one can delete at most $k$ edges so that every remaining connected…

Source: arXiv cs.DS Ajinkya Gaikwad
Algorithms

Beyond the Bethe Approximation of the Permanent

arXiv:2608.28031v2 Announce Type: replace Abstract: The canonical Bethe approximation gives a deterministic approximation to the permanent of every nonnegative matrix within a factor of $(\sqrt{2})^n$. We improve the…

Source: arXiv cs.DS Nima Anari
Algorithms

Fuzzy Pattern Matching in Ordered Structures

arXiv:2608.25032v2 Announce Type: replace Abstract: The problem of pattern matching, that is, finding all occurrences of a given pattern in a string, is one of the fundamental problems in computer science that has…

Source: arXiv cs.DS Armen Kostanyan, Arevik Harmandayan
Algorithms

Improved lower bounds of the time complexity of shellsort

arXiv:2607.08997v2 Announce Type: replace Abstract: In this paper we develop the framework of using a parametrized mapping $[\sigma(1), \sigma(2), \cdots, \sigma(n)] \mapsto \sigma(1)z + \sigma(2)z^2 + \cdots…

Source: arXiv cs.DS Zhenghan Zang
Algorithms

Two-State Max-Plus Comparison Is Decidable

arXiv:2609.00678v1 Announce Type: cross Abstract: Daviaud, Guillon, and Merlet proved that comparison of max-plus automata is undecidable under a fixed state bound of 553 and explicitly left the range from 2 to 552…

Source: arXiv cs.DS Keigo Oka
Algorithms

Logarithmic Chowla Correlations Across All Shift Scales

arXiv:2608.23500v4 Announce Type: replace-cross Abstract: Let $\lambda(n)=(-1)^{\Omega(n)}$ be the Liouville function. We prove a fixed power-logarithmic bound for its logarithmically weighted two-point correlations…

Source: arXiv cs.DM Jizhou Guo

Showing 1 day · 33 items available