{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2025:DKY2UYYPFDTU3NBPWKIIRI7FWK","merge_version":"pith-open-graph-merge-v1","event_count":2,"valid_event_count":2,"invalid_event_count":0,"equivocation_count":0,"current":{"canonical_record":{"metadata":{"abstract_canon_sha256":"e3fba346867a0317a9046dea20d9a95b74571237a13d1761fd5d23841ebc2567","cross_cats_sorted":["cs.CL"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.LG","submitted_at":"2025-02-01T18:59:03Z","title_canon_sha256":"ade1361c59b6b270ae98b608cb0538ab71945e04955a973f4c14af9360e8b625"},"schema_version":"1.0","source":{"id":"2502.00527","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2502.00527","created_at":"2026-06-08T01:03:43Z"},{"alias_kind":"arxiv_version","alias_value":"2502.00527v2","created_at":"2026-06-08T01:03:43Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2502.00527","created_at":"2026-06-08T01:03:43Z"},{"alias_kind":"pith_short_12","alias_value":"DKY2UYYPFDTU","created_at":"2026-06-08T01:03:43Z"},{"alias_kind":"pith_short_16","alias_value":"DKY2UYYPFDTU3NBP","created_at":"2026-06-08T01:03:43Z"},{"alias_kind":"pith_short_8","alias_value":"DKY2UYYP","created_at":"2026-06-08T01:03:43Z"}],"graph_snapshots":[{"event_id":"sha256:3f61eec59148b16b886557ff76bd229159c05886a80f600880f66b4338edfda2","target":"graph","created_at":"2026-06-08T01:03:43Z","signer":{"key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signer_id":"pith.science","signer_type":"pith_registry"},"payload":{"graph_snapshot":{"author_claims":{"count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","strong_count":0},"builder_version":"pith-number-builder-2026-05-17-v1","claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"integrity":{"available":true,"clean":true,"detectors_run":[],"endpoint":"/pith/2502.00527/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"The KV cache in large language models is a dominant factor in memory usage, limiting their broader applicability. Quantizing the cache to lower bit widths is an effective way to reduce computational costs; however, previous methods struggle with quantizing key vectors due to outliers, resulting in excessive overhead. We propose a novel quantization approach called PolarQuant, which efficiently addresses the outlier challenge. We observe that outliers typically appear in only one of two dimensions, which are rotated together by a specific angle when rotary position embeddings are applied. When ","authors_text":"Ang Lv, Guojun Yin, Rui Yan, Songhao Wu, Wei Lin, Xiao Feng, Xun Zhang, Yufei Zhang","cross_cats":["cs.CL"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.LG","submitted_at":"2025-02-01T18:59:03Z","title":"PolarQuant: Leveraging Polar Transformation for Efficient Key Cache Quantization and Decoding Acceleration"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2502.00527","kind":"arxiv","version":2},"verdict":{"created_at":null,"id":null,"model_set":{},"one_line_summary":"","pipeline_version":null,"pith_extraction_headline":"","strongest_claim":"","weakest_assumption":""}},"verdict_id":null}}],"author_attestations":[],"timestamp_anchors":[],"storage_attestations":[],"citation_signatures":[],"replication_records":[],"corrections":[],"mirror_hints":[],"record_created":{"event_id":"sha256:dc762768c66c987ac38e6d4182965fa53851d70e91c7a8919395dfa9c26df427","target":"record","created_at":"2026-06-08T01:03:43Z","signer":{"key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signer_id":"pith.science","signer_type":"pith_registry"},"payload":{"attestation_state":"computed","canonical_record":{"metadata":{"abstract_canon_sha256":"e3fba346867a0317a9046dea20d9a95b74571237a13d1761fd5d23841ebc2567","cross_cats_sorted":["cs.CL"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.LG","submitted_at":"2025-02-01T18:59:03Z","title_canon_sha256":"ade1361c59b6b270ae98b608cb0538ab71945e04955a973f4c14af9360e8b625"},"schema_version":"1.0","source":{"id":"2502.00527","kind":"arxiv","version":2}},"canonical_sha256":"1ab1aa630f28e74db42fb29088a3e5b2be7dcc53b59ae0b4b6fac4f6510c5bd4","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"1ab1aa630f28e74db42fb29088a3e5b2be7dcc53b59ae0b4b6fac4f6510c5bd4","first_computed_at":"2026-06-08T01:03:43.445393Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-06-08T01:03:43.445393Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"eAUo4dDcyIWw0U7CxvBIp2Y92JBHMvQNUTs4AB3uUoUDvzTmICamWThJoiiNxcUG8GeNVWPzsZxvR9ad+1sHDA==","signature_status":"signed_v1","signed_at":"2026-06-08T01:03:43.446498Z","signed_message":"canonical_sha256_bytes"},"source_id":"2502.00527","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:dc762768c66c987ac38e6d4182965fa53851d70e91c7a8919395dfa9c26df427","sha256:3f61eec59148b16b886557ff76bd229159c05886a80f600880f66b4338edfda2"],"state_sha256":"52005b8037ae9784b895ab7d281256e2e95622d958e75037cc52ce2811ec3f74"}