Pith Number

pith:CUN64YEZ

pith:2026:CUN64YEZODRN37IIR3JG3DAU6C

not attested not anchored not stored refs pending

UKP_Psycontrol at SemEval-2026 Task 2: Modeling Valence and Arousal Dynamics from Text

Amaia Zurinaga, Darya Hryhoryeva, Hamidreza Jamalabadi, Iryna Gurevych

LLMs capture current emotions from text well, but recent numeric trajectories explain short-term changes better than text semantics.

arxiv:2604.21534 v2 · 2026-04-23 · cs.CL

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\pithnumber{CUN64YEZODRN37IIR3JG3DAU6C}

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4 Citations open

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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

Our findings indicate that LLMs effectively capture static affective signals from text, whereas short-term affective variation in this dataset is more strongly explained by recent numeric state trajectories than by textual semantics.

C2weakest assumption

That the SemEval-2026 Task 2 dataset and evaluation metric provide a valid test of real-world affective dynamics modeling, with no major biases in the chronologically ordered texts or labels.

C3one line summary

LLMs capture static affective signals from text effectively, but short-term affective variation is better explained by recent numeric state trajectories than by textual semantics in this dataset.

Receipt and verification

First computed	2026-05-28T01:05:12.375179Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

151bee609970e2ddfd088ed26d8c14f088c60c64e56160f1156a26de111440b1

Aliases

arxiv: 2604.21534 · arxiv_version: 2604.21534v2 · doi: 10.48550/arxiv.2604.21534 · pith_short_12: CUN64YEZODRN · pith_short_16: CUN64YEZODRN37II · pith_short_8: CUN64YEZ

Agent API

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Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/CUN64YEZODRN37IIR3JG3DAU6C \
  | 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: 151bee609970e2ddfd088ed26d8c14f088c60c64e56160f1156a26de111440b1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6732d33631b92e69f38e514b49d6d0730859fcf4f84368d7d7cec2301a1b1a97",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.CL",
    "submitted_at": "2026-04-23T10:55:27Z",
    "title_canon_sha256": "4b2c5cdc610a24350bd6c9d10057f271aef8175aa1c582ff704c29be0199c293"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2604.21534",
    "kind": "arxiv",
    "version": 2
  }
}