Pith Number

pith:A6CSARVH

pith:2026:A6CSARVHR73X6PMQCCLI6CD2BF

not attested not anchored not stored refs pending

ASTRA: Adaptive Semantic Tree Reasoning Architecture for Complex Table Question Answering

Huajun Chen, Songze Li, Wen Zhang, Xiaoke Guo, Yuanxiang Liu, Zhaoyan Gong, Zhiqiang Liu

Reconstructing tables as adaptive logical semantic trees lets LLMs reach state-of-the-art accuracy on complex question answering.

arxiv:2604.08999 v2 · 2026-04-10 · cs.CL · cs.AI · cs.LG

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\usepackage{pith}
\pithnumber{A6CSARVHR73X6PMQCCLI6CD2BF}

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Record completeness

1 Bitcoin timestamp

2 Internet Archive

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

Experiments on complex table benchmarks demonstrate that our method achieves state-of-the-art (SOTA) performance.

C2weakest assumption

That LLMs can reliably reconstruct tables into Logical Semantic Trees that capture all relevant hierarchical dependencies without introducing errors, and that the dual-mode reasoning will produce verifiable gains over single-mode baselines.

C3one line summary

ASTRA builds adaptive semantic trees from tables and uses dual textual-symbolic reasoning to achieve SOTA performance on complex table question answering.

Formal links

2 machine-checked theorem links

Receipt and verification

First computed	2026-05-27T01:05:54.051611Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

07852046a78ff77f3d9010968f087a095e3256994197d497b00295ec12e220fe

Aliases

arxiv: 2604.08999 · arxiv_version: 2604.08999v2 · doi: 10.48550/arxiv.2604.08999 · pith_short_12: A6CSARVHR73X · pith_short_16: A6CSARVHR73X6PMQ · pith_short_8: A6CSARVH

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/A6CSARVHR73X6PMQCCLI6CD2BF \
  | 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: 07852046a78ff77f3d9010968f087a095e3256994197d497b00295ec12e220fe

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d17bc272a26a9500cc7644272c5c1ae3286713a8e64ed2905479b4e31876d9ce",
    "cross_cats_sorted": [
      "cs.AI",
      "cs.LG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CL",
    "submitted_at": "2026-04-10T06:09:41Z",
    "title_canon_sha256": "dc283860e38d34eb43e95997bec391971e4cf53f346cef4bd5ecee0e9dad7986"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2604.08999",
    "kind": "arxiv",
    "version": 2
  }
}