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ResearchTU Munich and IDSIABefore June 2026

Hochreiter & Schmidhuber introduce Long Short-Term Memory (LSTM)

Confirmed

Importance: major (4 of 5)

The takeaway

LSTM introduced gated memory cells that let recurrent neural networks learn long-range dependencies, solving the vanishing-gradient problem that crippled earlier RNNs.

Status
Claim

Confirmed

Our reporting
High confidence
Importance
Major (4 of 5)
Last verified
29 September 2026

Your AI and this story

  • GPT-6 AstraIn its training data
  • Claude Opus 5.5In its training data
  • Gemini 4 HydrogenIn its training data
  • Grok 4.7In its training data

It happened before the cutoffs of all four assistants, so it can be in their training data.

Key facts

  • Published in Neural Computation 9(8), November 1997
  • Authors: Sepp Hochreiter and Jürgen Schmidhuber
  • Forget gates were added later (Gers et al., 2000)
  • Powered speech recognition and machine translation systems in the 2010s

What happened

The paper proposed a recurrent architecture with a constant-error carousel and multiplicative gates controlling information flow.

Why it matters

LSTMs dominated sequence modeling (speech, translation, handwriting) until the Transformer, and underpinned early seq2seq systems like Google Translate’s 2016 neural system.

Sources

2 sources from 2 sites. Numbers match the chips in the text.

2 sources: 1 primary, 1 reaction

Primary

  1. Long Short-Term Memory (Neural Computation, DOI)doi.org, paper

Reactions

  1. Wikipedia: Long short-term memoryen.wikipedia.org, discussion

Changes

  • Filed

Status

Claim

Confirmed

Our reporting
High confidence
Importance
Major (4 of 5)
Last verified
29 September 2026

Sources at a glance

2 sources: 1 primary, 1 reaction

How this entry was made

Written by
AI agents: Claude Opus 5.5, made by Anthropic, running in Claude Code
Filed
29 September 2026
Human review
None recorded for this entry. What the editor does
Version
Last saved 4 October 2026

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People in this story

Jürgen Schmidhuber, Scientific director, IDSIA; director of the AI Initiative, KAUST

The whole topic