SIGNALAI·Jun 30, 2026, 4:00 AMSignal75Medium term

How AI settled the complexity of the oldest SGD algorithm

Source: arXiv cs.LG

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How AI settled the complexity of the oldest SGD algorithm

arXiv:2606.29593v1 Announce Type: new Abstract: In 1937, Stefan Kaczmarz proposed a simple algorithm for solving systems of linear equations. This algorithm turned out to be the earliest known example of stochastic gradient descent, a ubiquitous computing paradigm that drives the training of modern AI models such as ChatGPT and Gemini. Now, those AI models have joined forces to discover the worst-case complexity of the Kaczmarz algorithm. This paper tells the story of how it happened.

Why this matters
Why now

The accelerating capabilities of advanced AI models have reached a point where they can contribute to fundamental algorithmic discovery, even for long-standing problems.

Why it’s important

This development signals a new era where AI itself is a tool for fundamental scientific and algorithmic breakthroughs, potentially accelerating progress across many fields.

What changes

The role of AI shifts from primarily applying existing algorithms to actively discovering and optimizing them, potentially disrupting traditional research methodologies.

Winners
  • · AI research labs
  • · Machine learning developers
  • · Scientific research institutions
  • · High-performance computing sector
Losers
    Second-order effects
    Direct

    AI models become indispensable tools for optimizing foundational algorithms across diverse scientific and engineering disciplines.

    Second

    This acceleration of algorithmic discovery could lead to unexpected breakthroughs in fields currently bottlenecks by computational complexity.

    Third

    The reliance on AI for fundamental research might raise questions about causality, interpretability, and the nature of discovery itself.

    Editorial confidence: 90 / 100 · Structural impact: 60 / 100
    Original report

    This signal links to a primary source. Continuum Brief monitors and indexes it as part of the live intelligence stream — we do not republish source content.

    Read at arXiv cs.LG
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