Pith Number

pith:EHREKXSU

pith:2024:EHREKXSUNHFV4K3AFCOW2Y4TXM

not attested not anchored not stored refs pending

Negative Sampling in Recommendation: A Survey and Future Directions

Fuli Feng, Haokai Ma, Lei Meng, Ruobing Xie, Xiangxu Meng, Xiaoyu Du, Xingwu Sun, Zhanhui Kang

arxiv:2409.07237 v2 · 2024-09-11 · cs.IR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{EHREKXSUNHFV4K3AFCOW2Y4TXM}

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

Reinforced Preference Optimization for Reasoning-Augmented Recommendations

MASS-DPO: Multi-negative Active Sample Selection for Direct Policy Optimization

Objective Shaping with Hard Negatives: Windowed Partial AUC Optimization for RL-based LLM Recommenders

Receipt and verification

First computed	2026-07-05T11:43:07.381478Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

21e2455e5469cb5e2b60289d6d6393bb3344f01e64264998f90b55cdcfe60f11

Aliases

arxiv: 2409.07237 · arxiv_version: 2409.07237v2 · doi: 10.48550/arxiv.2409.07237 · pith_short_12: EHREKXSUNHFV · pith_short_16: EHREKXSUNHFV4K3A · pith_short_8: EHREKXSU

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/EHREKXSUNHFV4K3AFCOW2Y4TXM \
  | 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: 21e2455e5469cb5e2b60289d6d6393bb3344f01e64264998f90b55cdcfe60f11

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "94f39c09eaf25ae19c9885a81212fee1376d5d159947be553c028312e24ed6f3",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IR",
    "submitted_at": "2024-09-11T12:48:52Z",
    "title_canon_sha256": "7ccc0e2f649b248c891d72bd2ddc0f5feebf690a363042b62b781a18995a2fa3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2409.07237",
    "kind": "arxiv",
    "version": 2
  }
}