【第505期】TTT-E2E:长文本建模的端到端测试时训练模型 episode artwork

EPISODE · Feb 16, 2026 · 16 MIN

【第505期】TTT-E2E:长文本建模的端到端测试时训练模型

from Seventy3

Seventy3:借助NotebookLM的能力进行论文解读,专注人工智能、大模型、机器人算法、crypto方向,让大家跟着AI一起进步。今天的主题是:End-to-End Test-Time Training for Long ContextSummary我们将长上下文语言建模表述为一个持续学习(continual learning)问题,而非一个架构设计问题。在这一表述下,我们仅使用一种标准架构——带有滑动窗口注意力的 Transformer。然而,模型在测试阶段会通过对给定上下文进行下一词预测而持续学习,将其读取到的上下文压缩并写入模型权重中。此外,我们在训练阶段通过元学习(meta-learning)来改进模型在测试时进行学习的初始化。总体而言,我们的方法是一种测试时训练(Test-Time Training,TTT)形式,并且在测试阶段(通过下一词预测)和训练阶段(通过元学习)均实现了端到端(End-to-End,E2E),这与以往的 TTT 方法形成对比。我们开展了大量实验,重点分析其尺度扩展特性(scaling properties)。具体而言,对于使用 164B tokens 训练的 30 亿参数模型,我们的方法(TTT-E2E)在上下文长度上的扩展行为与全注意力 Transformer一致,而诸如 Mamba 2 和 Gated DeltaNet 等方法则不具备这一特性。同时,与 RNN 类似,TTT-E2E 的推理时延与上下文长度无关,在 128K 上下文长度下,其速度比全注意力机制快 2.7 倍。我们的代码已公开发布。原文链接:https://arxiv.org/abs/2512.23675前往小宇宙评论区与主播互动

Episode metadata supplied by the publisher feed · Published Feb 16, 2026

Embed this episode

NOW PLAYING

【第505期】TTT-E2E:长文本建模的端到端测试时训练模型

0:00 16:14

No transcript for this episode yet

We transcribe on demand. Request one and we'll notify you when it's ready — usually under 10 minutes.

No similar episodes found.

No similar podcasts found.

Frequently Asked Questions

How long is this episode of Seventy3?

This episode is 16 minutes long.

When was this Seventy3 episode published?

This episode was published on February 16, 2026.

Can I download this Seventy3 episode?

Yes. Use the download control on the episode player to save the publisher-provided media file.
URL copied to clipboard!