{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2019:VDONACX5R7QJSACSSQGQX222E7","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":"681a5e8d79ee648b04d9591889f8c1a970c41c96012e3690d17869e981831125","cross_cats_sorted":["stat.ML"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.LG","submitted_at":"2019-07-25T08:55:22Z","title_canon_sha256":"db97abedf52f104a087fe1ec862c39f024bf89fe0d343f75ef7401f2a045d046"},"schema_version":"1.0","source":{"id":"1907.10902","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1907.10902","created_at":"2026-05-17T23:39:34Z"},{"alias_kind":"arxiv_version","alias_value":"1907.10902v1","created_at":"2026-05-17T23:39:34Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1907.10902","created_at":"2026-05-17T23:39:34Z"},{"alias_kind":"pith_short_12","alias_value":"VDONACX5R7QJ","created_at":"2026-05-18T12:33:30Z"},{"alias_kind":"pith_short_16","alias_value":"VDONACX5R7QJSACS","created_at":"2026-05-18T12:33:30Z"},{"alias_kind":"pith_short_8","alias_value":"VDONACX5","created_at":"2026-05-18T12:33:30Z"}],"graph_snapshots":[{"event_id":"sha256:cb3904dca714581537d3fd1bcaf6f748af02a33d0021263a11d2c064165d2cf9","target":"graph","created_at":"2026-05-17T23:39:34Z","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"},"paper":{"abstract_excerpt":"The purpose of this study is to introduce new design-criteria for next-generation hyperparameter optimization software. The criteria we propose include (1) define-by-run API that allows users to construct the parameter search space dynamically, (2) efficient implementation of both searching and pruning strategies, and (3) easy-to-setup, versatile architecture that can be deployed for various purposes, ranging from scalable distributed computing to light-weight experiment conducted via interactive interface. In order to prove our point, we will introduce Optuna, an optimization software which i","authors_text":"Masanori Koyama, Shotaro Sano, Takeru Ohta, Takuya Akiba, Toshihiko Yanase","cross_cats":["stat.ML"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.LG","submitted_at":"2019-07-25T08:55:22Z","title":"Optuna: A Next-generation Hyperparameter Optimization Framework"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1907.10902","kind":"arxiv","version":1},"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":"sha256:81c9ac74cfa09534230a16503351e1778cb3b1bf484bef95a522fc82d1a770b6","target":"record","created_at":"2026-05-17T23:39:34Z","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":"681a5e8d79ee648b04d9591889f8c1a970c41c96012e3690d17869e981831125","cross_cats_sorted":["stat.ML"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.LG","submitted_at":"2019-07-25T08:55:22Z","title_canon_sha256":"db97abedf52f104a087fe1ec862c39f024bf89fe0d343f75ef7401f2a045d046"},"schema_version":"1.0","source":{"id":"1907.10902","kind":"arxiv","version":1}},"canonical_sha256":"a8dcd00afd8fe0990052940d0beb5a27e69fcda576e1bd156f7d5af7f0cadc16","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"a8dcd00afd8fe0990052940d0beb5a27e69fcda576e1bd156f7d5af7f0cadc16","first_computed_at":"2026-05-17T23:39:34.106398Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-17T23:39:34.106398Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"ugHUFDtLd4yxtkPL/BGLICtkbKOefh77uiCj3H3og25SVmqSk5saV/R/PQhmyxyjhys9YO9jpP151zk1CbcNAA==","signature_status":"signed_v1","signed_at":"2026-05-17T23:39:34.107008Z","signed_message":"canonical_sha256_bytes"},"source_id":"1907.10902","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:81c9ac74cfa09534230a16503351e1778cb3b1bf484bef95a522fc82d1a770b6","sha256:cb3904dca714581537d3fd1bcaf6f748af02a33d0021263a11d2c064165d2cf9"],"state_sha256":"63a07004172a19036d1f2801707af0b066be1fd84bb28c426df4f053811a05f9"}