{
  "id": "2609.04489",
  "title": "Towards Understanding Pause Token Fine-Tuning Dynamics: A Mode Retention Perspective",
  "authors": "Jaehyeon Kim, Suhwan Kim, Nakyung Lee, Yeongoon Kim, Jimin Seo, Giho Lee, Jungwoo Lee",
  "first_public": "2026-09-03",
  "added_at": "2026-10-18",
  "venue": "arXiv",
  "arxiv": "2609.04489",
  "paper_url": "https://arxiv.org/abs/2609.04489",
  "summary": "Places pause tokens at reasoning-step boundaries and masks their training loss. Studies how this affects learning new tasks while retaining earlier capabilities, including during reinforcement learning.",
  "lens": [
    "learned-tokens",
    "analysis"
  ],
  "representation": [
    "discrete-token",
    "text-latent-hybrid"
  ],
  "computation": [
    "token-wise"
  ],
  "training": [
    "supervised",
    "reinforcement-learning"
  ],
  "questions": [
    "capability",
    "generalization",
    "interpretability"
  ],
  "evidence": [
    "empirical",
    "probing"
  ],
  "modality": [
    "language",
    "symbolic"
  ],
  "provenance": "Primary-source literature search, 2026-10-18",
  "author_names": [
    "Jaehyeon Kim",
    "Suhwan Kim",
    "Nakyung Lee",
    "Yeongoon Kim",
    "Jimin Seo",
    "Giho Lee",
    "Jungwoo Lee"
  ],
  "record_url": "https://latent-implicit-thinking.github.io/papers/2609.04489/",
  "legacy_record_url": "https://latent-implicit-thinking.github.io/papers/#paper-2609-04489",
  "citation_date": "2026-09-03",
  "json_url": "https://latent-implicit-thinking.github.io/papers/2609.04489/record.json",
  "markdown_url": "https://latent-implicit-thinking.github.io/papers/2609.04489/index.md",
  "bibtex_url": "https://latent-implicit-thinking.github.io/papers/2609.04489/citation.bib",
  "csl_url": "https://latent-implicit-thinking.github.io/papers/2609.04489/citation.csl.json"
}