Pith Number

pith:JJQYMCXE

pith:2023:JJQYMCXELAIKJPAAPR4IBVHUWS

not attested not anchored not stored refs pending

Neural incomplete factorization: learning preconditioners for the conjugate gradient method

Jens Sj\"olund, Ozan \"Oktem, Paul H\"ausner

arxiv:2305.16368 v3 · 2023-05-25 · math.OC · cs.LG · cs.NA · math.NA · stat.ML

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{JJQYMCXELAIKJPAAPR4IBVHUWS}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more · Embed verified badge

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.

Cited by

3 papers in Pith

Factored Sparse Approximate Inverse Preconditioning via Spectral Optimization

RL4RLA: Teaching ML to Discover Randomized Linear Algebra Algorithms Through Curriculum Design and Graph-Based Search

When can a neural operator replace a coarse solve? Architectural principles for two-level preconditioning

Receipt and verification

First computed	2026-07-05T09:24:51.065505Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4a61860ae45810a4bc007c7880d4f4b4beac65be8f734efefa46f392f6e2bfef

Aliases

arxiv: 2305.16368 · arxiv_version: 2305.16368v3 · doi: 10.48550/arxiv.2305.16368 · pith_short_12: JJQYMCXELAIK · pith_short_16: JJQYMCXELAIKJPAA · pith_short_8: JJQYMCXE

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/JJQYMCXELAIKJPAAPR4IBVHUWS \
  | 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: 4a61860ae45810a4bc007c7880d4f4b4beac65be8f734efefa46f392f6e2bfef

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "77c778acb463e5728c4fb5f5cda02cd31194afb9fa403296fdd4418f052ab12c",
    "cross_cats_sorted": [
      "cs.LG",
      "cs.NA",
      "math.NA",
      "stat.ML"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.OC",
    "submitted_at": "2023-05-25T11:45:46Z",
    "title_canon_sha256": "d3b1070d88e94f58a5af204e781c68736f9c42a74eae5d3624ad9eaef519272a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2305.16368",
    "kind": "arxiv",
    "version": 3
  }
}