{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2019:ZHAFTHBW7IUCXM6B7GKFOTX4TQ","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":"010a92c846e5a8b20bbc783e25b54741c1e41344a9f2b014bf681acc90a4855d","cross_cats_sorted":["cs.LG","stat.ML"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.IR","submitted_at":"2019-07-18T13:29:04Z","title_canon_sha256":"3c06dba7d1dca240755a109d71fa6a4ac5d4f8dcbbb86160d0e69ec4ed6a4905"},"schema_version":"1.0","source":{"id":"1907.08686","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1907.08686","created_at":"2026-05-17T23:40:08Z"},{"alias_kind":"arxiv_version","alias_value":"1907.08686v1","created_at":"2026-05-17T23:40:08Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1907.08686","created_at":"2026-05-17T23:40:08Z"},{"alias_kind":"pith_short_12","alias_value":"ZHAFTHBW7IUC","created_at":"2026-05-18T12:33:33Z"},{"alias_kind":"pith_short_16","alias_value":"ZHAFTHBW7IUCXM6B","created_at":"2026-05-18T12:33:33Z"},{"alias_kind":"pith_short_8","alias_value":"ZHAFTHBW","created_at":"2026-05-18T12:33:33Z"}],"graph_snapshots":[{"event_id":"sha256:1d141044a0be8292fbd39c00815580a0f5abc0c3638ed9ea0bd13385123da6ff","target":"graph","created_at":"2026-05-17T23:40:08Z","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":"In sponsored search, keyword recommendations help advertisers to achieve much better performance within limited budget. Many works have been done to mine numerous candidate keywords from search logs or landing pages. However, the strategy to select from given candidates remains to be improved. The existing relevance-based, popularity-based and regular combinatorial strategies fail to take the internal or external competitions among keywords into consideration. In this paper, we regard keyword recommendations as a combinatorial optimization problem and solve it with a modified pointer network s","authors_text":"Jianwei Wu, Lin Sun, Tao Rong, Zhipeng Li","cross_cats":["cs.LG","stat.ML"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.IR","submitted_at":"2019-07-18T13:29:04Z","title":"Combinatorial Keyword Recommendations for Sponsored Search with Deep Reinforcement Learning"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1907.08686","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:d2774a57c8a4fa252a9fa6f62599131b127b71fb2e14a45a4a3d80d31808e7d1","target":"record","created_at":"2026-05-17T23:40:08Z","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":"010a92c846e5a8b20bbc783e25b54741c1e41344a9f2b014bf681acc90a4855d","cross_cats_sorted":["cs.LG","stat.ML"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.IR","submitted_at":"2019-07-18T13:29:04Z","title_canon_sha256":"3c06dba7d1dca240755a109d71fa6a4ac5d4f8dcbbb86160d0e69ec4ed6a4905"},"schema_version":"1.0","source":{"id":"1907.08686","kind":"arxiv","version":1}},"canonical_sha256":"c9c0599c36fa282bb3c1f994574efc9c3ea1dfab253e1c396fafd6c14173e290","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"c9c0599c36fa282bb3c1f994574efc9c3ea1dfab253e1c396fafd6c14173e290","first_computed_at":"2026-05-17T23:40:08.115653Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-17T23:40:08.115653Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"BMMb+EZKTzoeadOdMcnkZtbvpsa9ZuJLeW2SwXlndo+4aLFSbykyFhAg7aXZIuOjtEH6KWilUYkoijyqqxO9DA==","signature_status":"signed_v1","signed_at":"2026-05-17T23:40:08.116402Z","signed_message":"canonical_sha256_bytes"},"source_id":"1907.08686","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:d2774a57c8a4fa252a9fa6f62599131b127b71fb2e14a45a4a3d80d31808e7d1","sha256:1d141044a0be8292fbd39c00815580a0f5abc0c3638ed9ea0bd13385123da6ff"],"state_sha256":"2b1714596da7217a3235aa8131d009d41de81064dc5dd88cd5c21ceb91c32f6e"}