computational-complexity

Tag

Cards List
#computational-complexity

The recently proposed O(n log n) integer multiplication algorithm [pdf]

Hacker News Top ↗ · 8h ago Cached

David Harvey and Joris van der Hoeven's paper presenting a groundbreaking O(n log n) integer multiplication algorithm, breaking the long-standing complexity barrier for multiplying large integers.

0 favorites 0 likes
#computational-complexity

Κ = 0.003 for integer multiplication crossed

Hacker News Top ↗ · 12h ago Cached

A community research repository reports a sharper exponent bound for integer multiplication, achieving T(n)=O(n(log n)^(1-κ)) with κ=0.0023 under the OpenAI #109 framework, conditional on unverified hypotheses and not yet a complete Lean proof.

0 favorites 0 likes
#computational-complexity

Understanding the Benefits of Scaffolds through Computational Separations

arXiv cs.LG ↗ · yesterday Cached

This paper theoretically and empirically explains why inference-time harnesses (scaffolds) outperform distilled student models: harnesses can compute closures that are NL-complete even from trivial AC0 primitives, a representational power no fixed-depth forward pass can replicate under standard complexity assumptions. The authors verify that enlarging the model, simplifying the task, or lengthening chain-of-thought can close this gap, including on competition math with agentic harnesses.

0 favorites 0 likes
#computational-complexity

At a cost of $2000, doubleAI claims to have solved a long unsolved mathematical problem, the Longest Path problem in Graph theory. The solution could have practical value in correcting errors and accelerating calculations in a quantum computer.

Reddit r/singularity ↗ · 2026-10-15 Cached

doubleAI claims, at a cost of $2000, to have solved the long-unsolved Longest Path problem in graph theory, with potential practical applications in error correction and accelerating calculations on quantum computers.

0 favorites 0 likes
#computational-complexity

OpenAI algorithm for the FFT is less a breakthrough and more a malicious exploit

Hacker News Top ↗ · 2026-10-13 Cached

一篇技术评论文章,批评 OpenAI 在数学论文集中声称的更快快速傅里叶变换(FFT)算法,指出其改进微乎其微,更像是利用理论模型在硬件上并不实际可行的“恶意利用”,而非真正的突破。

0 favorites 0 likes
#computational-complexity

Auto Research: Integer multiplication below n log n

Hacker News Top ↗ · 2026-10-11 Cached

An automated research run exploring integer multiplication algorithms with complexity below n log n, providing reproducible contributions, a repository contribution guide, and interactive visualization of ideas and pull requests.

0 favorites 0 likes
#computational-complexity

Reasoning Shortcuts and Value Symmetries: What Symmetry Permits, Architecture Realizes, and Optimization Selects

arXiv cs.AI ↗ · 2026-08-12 Cached

This paper analyzes reasoning shortcuts in neurosymbolic systems through symmetry and automorphism groups, reveals flaws in a prior framework, proves complexity-theoretic results, and empirically validates the corrected theory on benchmarks like CLE4EVR and rsbench.

0 favorites 0 likes
#computational-complexity

Stochasticity Is Not the Hard Part: Reduction and Complexity in Instructional Sequencing over Prerequisite DAGs

arXiv cs.AI ↗ · 2026-08-07 Cached

This paper studies instructional sequencing over prerequisite DAGs, proving that stochastic learning dynamics can be exactly reduced to a deterministic shortest-path problem, yet the optimal sequencing remains NP-hard in general, with polynomial-time cases under restricted transfer structures.

0 favorites 0 likes
#computational-complexity

@HowToPrompt__: Chinese professor has discovered the fastest shortest path algorithm for graphs in 40yrs. Dijkstra’s algorithm has lite…

X AI KOLs Timeline ↗ · 2026-07-20 Cached

A Chinese professor has discovered a new deterministic shortest path algorithm that beats the 40-year-old sorting barrier by combining Dijkstra and Bellman-Ford with frontier reduction, achieving O(m log^(2/3) n) time on sparse graphs.

0 favorites 0 likes
#computational-complexity

Computation as a Universal and Fundamental Concept

Hacker News Top ↗ · 2026-07-10 Cached

This article announces a free online course by Tim Roughgarden that covers fundamental concepts in computer science, including Turing machines, the halting problem, algorithmic efficiency, NP-completeness, and the P vs NP problem.

0 favorites 0 likes
#computational-complexity

Markets are competitive if and only if P = NP

Hacker News Top ↗ · 2026-07-03 Cached

This paper establishes a theoretical connection between market competitiveness and the P versus NP problem, arguing that competitive markets exist if and only if P ≠ NP.

0 favorites 0 likes
#computational-complexity

@arxivblog: Computational complexity theorists show gravity must be quantised https://arxivblog.substack.com/p/computational-comple…

X AI KOLs Timeline ↗ · 2026-06-22 Cached

Computational complexity theorists argue that semiclassical gravity's non-linear dynamics would enable impossibly powerful computation, proving gravity must be quantized. The paper uses the Schrödinger-Newton equation to show that classical gravity coupled to quantum matter leads to computational contradictions.

0 favorites 0 likes
#computational-complexity

Semiclassical Gravity Efficiently Solves NP-Complete Problems

Hacker News Top ↗ · 2026-06-17 Cached

This paper argues that under semiclassical gravity, a massive qubit can solve NP-complete problems in polynomial time via nonlinear dynamics, implying gravity must be quantized.

0 favorites 0 likes
#computational-complexity

Diversity of Extensions in Abstract Argumentation

arXiv cs.AI ↗ · 2026-05-14 Cached

This paper introduces a quantitative notion of diversity of extensions in abstract argumentation based on symmetric difference, and provides a systematic complexity classification for related reasoning tasks.

0 favorites 0 likes
#computational-complexity

@tetsuoai: You can't engineer luck. Cleanest phrasing of P vs NP I've heard. NP is the magical computer that always tells you whic…

X AI KOLs Timeline ↗ · 2026-05-10 Cached

A social media post explaining the P vs NP problem by comparing NP to a 'magical computer' that always finds the right path, referencing MIT's Introduction to Algorithms course.

0 favorites 0 likes
#computational-complexity

Computational limitations in robust classification and win-win results

OpenAI Blog ↗ · 2019-02-04 Cached

This paper extends the study of computational hardness in learning robust classifiers, showing that efficient robust classification can be impossible even when unbounded robust classifiers exist, and establishing a win-win result: either an efficient robust classifier can be learned, or new cryptographic primitives can be constructed.

0 favorites 0 likes
← Back to home

Submit Feedback