{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2018:APSUV62QGYO67YMAQXXNSWJSWE","short_pith_number":"pith:APSUV62Q","canonical_record":{"source":{"id":"1812.00158","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.IR","submitted_at":"2018-12-01T06:26:05Z","cross_cats_sorted":[],"title_canon_sha256":"a677342a214c1e5db73d2d8e1e24136319695cdaf534e291283f711a61587e23","abstract_canon_sha256":"d41b8a4f5e5b0822601816bf32bf66112c517377c3bc72cb01b14f8d7f11f321"},"schema_version":"1.0"},"canonical_sha256":"03e54afb50361defe18085eed95932b11fc2724c31bd5e3220a14663297f2f4e","source":{"kind":"arxiv","id":"1812.00158","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1812.00158","created_at":"2026-05-17T23:59:27Z"},{"alias_kind":"arxiv_version","alias_value":"1812.00158v1","created_at":"2026-05-17T23:59:27Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1812.00158","created_at":"2026-05-17T23:59:27Z"},{"alias_kind":"pith_short_12","alias_value":"APSUV62QGYO6","created_at":"2026-05-18T12:32:13Z"},{"alias_kind":"pith_short_16","alias_value":"APSUV62QGYO67YMA","created_at":"2026-05-18T12:32:13Z"},{"alias_kind":"pith_short_8","alias_value":"APSUV62Q","created_at":"2026-05-18T12:32:13Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2018:APSUV62QGYO67YMAQXXNSWJSWE","target":"record","payload":{"canonical_record":{"source":{"id":"1812.00158","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.IR","submitted_at":"2018-12-01T06:26:05Z","cross_cats_sorted":[],"title_canon_sha256":"a677342a214c1e5db73d2d8e1e24136319695cdaf534e291283f711a61587e23","abstract_canon_sha256":"d41b8a4f5e5b0822601816bf32bf66112c517377c3bc72cb01b14f8d7f11f321"},"schema_version":"1.0"},"canonical_sha256":"03e54afb50361defe18085eed95932b11fc2724c31bd5e3220a14663297f2f4e","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-17T23:59:27.090068Z","signature_b64":"LuedsqdK2uG8Rj4RensWCtwmfQr7c/KElr7HPZzd+/awsDzBe26folPKPWIcBYQZI/4FkguzK+Ar5WnitYEUDw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"03e54afb50361defe18085eed95932b11fc2724c31bd5e3220a14663297f2f4e","last_reissued_at":"2026-05-17T23:59:27.088709Z","signature_status":"signed_v1","first_computed_at":"2026-05-17T23:59:27.088709Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1812.00158","source_version":1,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-17T23:59:27Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"C/F+gMGPLVwddCLoLuzD5d8JPRaofkBjgpfju7dqKGcNcx7qaJkdy4oiDQKxD6t0LXldiWhfB7aq6XC5DhsUDg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-01T19:12:59.917762Z"},"content_sha256":"0e0737192a40161f188643ae2d80c8f16b72a52417c6cb5924d025e1893ee9ee","schema_version":"1.0","event_id":"sha256:0e0737192a40161f188643ae2d80c8f16b72a52417c6cb5924d025e1893ee9ee"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2018:APSUV62QGYO67YMAQXXNSWJSWE","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Approximating Categorical Similarity in Sponsored Search Relevance","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cs.IR","authors_text":"Hiba Ahsan, Rahul Agrawal","submitted_at":"2018-12-01T06:26:05Z","abstract_excerpt":"Sponsored Search is a major source of revenue for web search engines. Since sponsored search follows a pay-per-click model, showing relevant ads for receiving clicks is crucial. Matching categories of a query and its ad candidates have been explored in modeling relevance of query-ad pairs. The approach involves matching cached categories of queries seen in the past to categories of candidate ads. Since queries have a heavy tail distribution, the approach has limited coverage. In this work, we propose approximating categorical similarity of a query-ad pairs using neural networks, particularly C"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1812.00158","kind":"arxiv","version":1},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"references":{"count":0,"sample":[],"resolved_work":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","internal_anchors":0},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"author_claims":{"count":0,"strong_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"builder_version":"pith-number-builder-2026-05-17-v1"},"verdict_id":null},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-17T23:59:27Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"q6AzqqanUKXMWXUaVgAZiVTctHSz2RgsfqO7iEEHS7b8f/vgN9JZkkvivGfDv3xQYud1Sm8JS1LudDh8h1fHCA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-01T19:12:59.918434Z"},"content_sha256":"b3239ee2b024d28901a677c6d9cf8f705c61278c63c263ddfb5e5f77f1812b77","schema_version":"1.0","event_id":"sha256:b3239ee2b024d28901a677c6d9cf8f705c61278c63c263ddfb5e5f77f1812b77"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/APSUV62QGYO67YMAQXXNSWJSWE/bundle.json","state_url":"https://pith.science/pith/APSUV62QGYO67YMAQXXNSWJSWE/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/APSUV62QGYO67YMAQXXNSWJSWE/bundle.json","status":"primary"}],"public_keys":[{"key_id":"pith-v1-2026-05","algorithm":"ed25519","format":"raw","public_key_b64":"stVStoiQhXFxp4s2pdzPNoqVNBMojDU/fJ2db5S3CbM=","public_key_hex":"b2d552b68890857171a78b36a5dccf368a953413288c353f7c9d9d6f94b709b3","fingerprint_sha256_b32_first128bits":"RVFV5Z2OI2J3ZUO7ERDEBCYNKS","fingerprint_sha256_hex":"8d4b5ee74e4693bcd1df2446408b0d54","rotates_at":null,"url":"https://pith.science/pith-signing-key.json","notes":"Pith uses this Ed25519 key to sign canonical record SHA-256 digests. Verify with: ed25519_verify(public_key, message=canonical_sha256_bytes, signature=base64decode(signature_b64))."}],"merge_version":"pith-open-graph-merge-v1","built_at":"2026-06-01T19:12:59Z","links":{"resolver":"https://pith.science/pith/APSUV62QGYO67YMAQXXNSWJSWE","bundle":"https://pith.science/pith/APSUV62QGYO67YMAQXXNSWJSWE/bundle.json","state":"https://pith.science/pith/APSUV62QGYO67YMAQXXNSWJSWE/state.json","well_known_bundle":"https://pith.science/.well-known/pith/APSUV62QGYO67YMAQXXNSWJSWE/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:APSUV62QGYO67YMAQXXNSWJSWE","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":"d41b8a4f5e5b0822601816bf32bf66112c517377c3bc72cb01b14f8d7f11f321","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.IR","submitted_at":"2018-12-01T06:26:05Z","title_canon_sha256":"a677342a214c1e5db73d2d8e1e24136319695cdaf534e291283f711a61587e23"},"schema_version":"1.0","source":{"id":"1812.00158","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1812.00158","created_at":"2026-05-17T23:59:27Z"},{"alias_kind":"arxiv_version","alias_value":"1812.00158v1","created_at":"2026-05-17T23:59:27Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1812.00158","created_at":"2026-05-17T23:59:27Z"},{"alias_kind":"pith_short_12","alias_value":"APSUV62QGYO6","created_at":"2026-05-18T12:32:13Z"},{"alias_kind":"pith_short_16","alias_value":"APSUV62QGYO67YMA","created_at":"2026-05-18T12:32:13Z"},{"alias_kind":"pith_short_8","alias_value":"APSUV62Q","created_at":"2026-05-18T12:32:13Z"}],"graph_snapshots":[{"event_id":"sha256:b3239ee2b024d28901a677c6d9cf8f705c61278c63c263ddfb5e5f77f1812b77","target":"graph","created_at":"2026-05-17T23:59:27Z","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":"Sponsored Search is a major source of revenue for web search engines. Since sponsored search follows a pay-per-click model, showing relevant ads for receiving clicks is crucial. Matching categories of a query and its ad candidates have been explored in modeling relevance of query-ad pairs. The approach involves matching cached categories of queries seen in the past to categories of candidate ads. Since queries have a heavy tail distribution, the approach has limited coverage. In this work, we propose approximating categorical similarity of a query-ad pairs using neural networks, particularly C","authors_text":"Hiba Ahsan, Rahul Agrawal","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.IR","submitted_at":"2018-12-01T06:26:05Z","title":"Approximating Categorical Similarity in Sponsored Search Relevance"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1812.00158","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":"sha256:0e0737192a40161f188643ae2d80c8f16b72a52417c6cb5924d025e1893ee9ee","target":"record","created_at":"2026-05-17T23:59:27Z","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":"d41b8a4f5e5b0822601816bf32bf66112c517377c3bc72cb01b14f8d7f11f321","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.IR","submitted_at":"2018-12-01T06:26:05Z","title_canon_sha256":"a677342a214c1e5db73d2d8e1e24136319695cdaf534e291283f711a61587e23"},"schema_version":"1.0","source":{"id":"1812.00158","kind":"arxiv","version":1}},"canonical_sha256":"03e54afb50361defe18085eed95932b11fc2724c31bd5e3220a14663297f2f4e","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"03e54afb50361defe18085eed95932b11fc2724c31bd5e3220a14663297f2f4e","first_computed_at":"2026-05-17T23:59:27.088709Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-17T23:59:27.088709Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"LuedsqdK2uG8Rj4RensWCtwmfQr7c/KElr7HPZzd+/awsDzBe26folPKPWIcBYQZI/4FkguzK+Ar5WnitYEUDw==","signature_status":"signed_v1","signed_at":"2026-05-17T23:59:27.090068Z","signed_message":"canonical_sha256_bytes"},"source_id":"1812.00158","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:0e0737192a40161f188643ae2d80c8f16b72a52417c6cb5924d025e1893ee9ee","sha256:b3239ee2b024d28901a677c6d9cf8f705c61278c63c263ddfb5e5f77f1812b77"],"state_sha256":"99275c91a1fad60ff4ddbc30740f66a4f80c8fbfc88efe4596c00c5b14baa117"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"HwtwwhnaXFfa/DXvXrjf5YccEeJO0R0rcvve8RESvlKBope6i7PbeLmez/KRBmJBISYKQYa9BT/wGzoJQDSBBw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-01T19:13:00.081256Z","bundle_sha256":"0569dd907ca11884516903161082d3bfaf04139acbd2f4490f0f5f98f721d0f7"}}