Pith Number

pith:SBCN7S7Q

pith:2025:SBCN7S7QJMK7VQUKJLOV6ZXOJ4

not attested not anchored not stored refs pending

Adaptive Activation Steering for Efficient LLM Reasoning via Closed-Loop PID Control

Aryasomayajula Ram Bharadwaj

A PID controller dynamically adjusts activation steering to cut redundant chain-of-thought steps in large language models.

arxiv:2506.18831 v3 · 2025-06-23 · cs.CL

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\usepackage{pith}
\pithnumber{SBCN7S7QJMK7VQUKJLOV6ZXOJ4}

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Record completeness

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3 Author claim open · sign in to claim

4 Citations open

5 Replications open

✓ Portable graph bundle live · download bundle · merged state

The bundle contains the canonical record plus signed events. A mirror can host it anywhere and recompute the same current state with the deterministic merge algorithm.

Claims

C1strongest claim

Experimental evaluation on GSM8K demonstrates that STUPID achieves a 6% improvement in accuracy while reducing token usage by 32%, outperforming static steering baselines.

C2weakest assumption

The chunk-level classifier reliably detects redundant reasoning patterns in real time and that its redundancy probability can be used as a stable error signal for the PID controller without introducing new failure modes.

C3one line summary

STU-PID combines a chunk-level redundancy classifier with a PID controller to dynamically modulate activation steering in LLMs, yielding 6% higher accuracy and 32% fewer tokens on GSM8K compared to static baselines.

Receipt and verification

First computed	2026-06-19T16:09:49.750009Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9044dfcbf04b15fac28a4add5f66ee4f16d049ce5ec2a706861fc11bdd65cf9b

Aliases

arxiv: 2506.18831 · arxiv_version: 2506.18831v3 · doi: 10.48550/arxiv.2506.18831 · pith_short_12: SBCN7S7QJMK7 · pith_short_16: SBCN7S7QJMK7VQUK · pith_short_8: SBCN7S7Q

Agent API

Resolver JSON Graph JSON Events JSON Schema Signing key

Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/SBCN7S7QJMK7VQUKJLOV6ZXOJ4 \
  | jq -c '.canonical_record' \
  | python3 -c "import sys,json,hashlib; b=json.dumps(json.loads(sys.stdin.read()), sort_keys=True, separators=(',',':'), ensure_ascii=False).encode(); print(hashlib.sha256(b).hexdigest())"
# expect: 9044dfcbf04b15fac28a4add5f66ee4f16d049ce5ec2a706861fc11bdd65cf9b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b795235b91fe6efe961c64431f2ab871a01e03250abc48ef1198fb77424b5d43",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by-nc-sa/4.0/",
    "primary_cat": "cs.CL",
    "submitted_at": "2025-06-23T16:47:19Z",
    "title_canon_sha256": "7db8783bc4159567b641a053d982b9d11196df000807f69ab69f90f1a67f6c86"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2506.18831",
    "kind": "arxiv",
    "version": 3
  }
}