{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2018:4GPPT56JP62RDTLSYEJBLLN6J3","short_pith_number":"pith:4GPPT56J","canonical_record":{"source":{"id":"1806.05507","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CL","submitted_at":"2018-06-14T12:48:31Z","cross_cats_sorted":[],"title_canon_sha256":"20384986ec4a0d807013ed9c1c603b081aa9e61c08b087496ed8f78150439ce3","abstract_canon_sha256":"cd0ccaa166e27cfc1ebbe800679128384f1f06d8cc1dd93ea5905a6b00577cf3"},"schema_version":"1.0"},"canonical_sha256":"e19ef9f7c97fb511cd72c11215adbe4ec0e5fd9deee8c610a2ae85c01ff2a34a","source":{"kind":"arxiv","id":"1806.05507","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1806.05507","created_at":"2026-05-18T00:13:15Z"},{"alias_kind":"arxiv_version","alias_value":"1806.05507v1","created_at":"2026-05-18T00:13:15Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1806.05507","created_at":"2026-05-18T00:13:15Z"},{"alias_kind":"pith_short_12","alias_value":"4GPPT56JP62R","created_at":"2026-05-18T12:32:05Z"},{"alias_kind":"pith_short_16","alias_value":"4GPPT56JP62RDTLS","created_at":"2026-05-18T12:32:05Z"},{"alias_kind":"pith_short_8","alias_value":"4GPPT56J","created_at":"2026-05-18T12:32:05Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2018:4GPPT56JP62RDTLSYEJBLLN6J3","target":"record","payload":{"canonical_record":{"source":{"id":"1806.05507","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CL","submitted_at":"2018-06-14T12:48:31Z","cross_cats_sorted":[],"title_canon_sha256":"20384986ec4a0d807013ed9c1c603b081aa9e61c08b087496ed8f78150439ce3","abstract_canon_sha256":"cd0ccaa166e27cfc1ebbe800679128384f1f06d8cc1dd93ea5905a6b00577cf3"},"schema_version":"1.0"},"canonical_sha256":"e19ef9f7c97fb511cd72c11215adbe4ec0e5fd9deee8c610a2ae85c01ff2a34a","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:13:15.009420Z","signature_b64":"1ECNwJ3PtVFs9Oxsp0jPrZ9CHxn+WXvnWdASmGfockkiDxjHDD/aAc3rf+g/U+JnHhRDBIrQFjxmfy5E9N1NBA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"e19ef9f7c97fb511cd72c11215adbe4ec0e5fd9deee8c610a2ae85c01ff2a34a","last_reissued_at":"2026-05-18T00:13:15.008769Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:13:15.008769Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1806.05507","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":"2026-05-18T00:13:15Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"KRqVf/nks++CQGePARsvBOEct+TRbG21vXa/VF3uBojNFVJSWoeUuI8AY0X3Jj96TZlFw+6+wFmNj4iKHtUCDQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-26T11:02:49.243480Z"},"content_sha256":"680d0e1ad848425e2466760fa096022b3bd3d99bd0e2db58ba4de5ec3cebaf95","schema_version":"1.0","event_id":"sha256:680d0e1ad848425e2466760fa096022b3bd3d99bd0e2db58ba4de5ec3cebaf95"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2018:4GPPT56JP62RDTLSYEJBLLN6J3","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Cold-Start Aware User and Product Attention for Sentiment Classification","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cs.CL","authors_text":"Jihyeok Kim, Reinald Kim Amplayo, Seung-won Hwang, Sua Sung","submitted_at":"2018-06-14T12:48:31Z","abstract_excerpt":"The use of user/product information in sentiment analysis is important, especially for cold-start users/products, whose number of reviews are very limited. However, current models do not deal with the cold-start problem which is typical in review websites. In this paper, we present Hybrid Contextualized Sentiment Classifier (HCSC), which contains two modules: (1) a fast word encoder that returns word vectors embedded with short and long range dependency features; and (2) Cold-Start Aware Attention (CSAA), an attention mechanism that considers the existence of cold-start problem when attentivel"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1806.05507","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":"2026-05-18T00:13:15Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Sy9hsUEEWtP2FfGmsTS3G4Sflmye/L54aqO+bN2xAg0EAM9cyw3o/JIyuxP6mvvgvHttDhNBvvCG0LGIhKJCBA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-26T11:02:49.244076Z"},"content_sha256":"de243283ec27b9c948793bac23a67c13105aa7209f37778729bb214ee8d96ed5","schema_version":"1.0","event_id":"sha256:de243283ec27b9c948793bac23a67c13105aa7209f37778729bb214ee8d96ed5"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/4GPPT56JP62RDTLSYEJBLLN6J3/bundle.json","state_url":"https://pith.science/pith/4GPPT56JP62RDTLSYEJBLLN6J3/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/4GPPT56JP62RDTLSYEJBLLN6J3/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":"2026-05-26T11:02:49Z","links":{"resolver":"https://pith.science/pith/4GPPT56JP62RDTLSYEJBLLN6J3","bundle":"https://pith.science/pith/4GPPT56JP62RDTLSYEJBLLN6J3/bundle.json","state":"https://pith.science/pith/4GPPT56JP62RDTLSYEJBLLN6J3/state.json","well_known_bundle":"https://pith.science/.well-known/pith/4GPPT56JP62RDTLSYEJBLLN6J3/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:4GPPT56JP62RDTLSYEJBLLN6J3","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":"cd0ccaa166e27cfc1ebbe800679128384f1f06d8cc1dd93ea5905a6b00577cf3","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CL","submitted_at":"2018-06-14T12:48:31Z","title_canon_sha256":"20384986ec4a0d807013ed9c1c603b081aa9e61c08b087496ed8f78150439ce3"},"schema_version":"1.0","source":{"id":"1806.05507","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1806.05507","created_at":"2026-05-18T00:13:15Z"},{"alias_kind":"arxiv_version","alias_value":"1806.05507v1","created_at":"2026-05-18T00:13:15Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1806.05507","created_at":"2026-05-18T00:13:15Z"},{"alias_kind":"pith_short_12","alias_value":"4GPPT56JP62R","created_at":"2026-05-18T12:32:05Z"},{"alias_kind":"pith_short_16","alias_value":"4GPPT56JP62RDTLS","created_at":"2026-05-18T12:32:05Z"},{"alias_kind":"pith_short_8","alias_value":"4GPPT56J","created_at":"2026-05-18T12:32:05Z"}],"graph_snapshots":[{"event_id":"sha256:de243283ec27b9c948793bac23a67c13105aa7209f37778729bb214ee8d96ed5","target":"graph","created_at":"2026-05-18T00:13:15Z","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 use of user/product information in sentiment analysis is important, especially for cold-start users/products, whose number of reviews are very limited. However, current models do not deal with the cold-start problem which is typical in review websites. In this paper, we present Hybrid Contextualized Sentiment Classifier (HCSC), which contains two modules: (1) a fast word encoder that returns word vectors embedded with short and long range dependency features; and (2) Cold-Start Aware Attention (CSAA), an attention mechanism that considers the existence of cold-start problem when attentivel","authors_text":"Jihyeok Kim, Reinald Kim Amplayo, Seung-won Hwang, Sua Sung","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CL","submitted_at":"2018-06-14T12:48:31Z","title":"Cold-Start Aware User and Product Attention for Sentiment Classification"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1806.05507","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":"sha256:680d0e1ad848425e2466760fa096022b3bd3d99bd0e2db58ba4de5ec3cebaf95","target":"record","created_at":"2026-05-18T00:13:15Z","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":"cd0ccaa166e27cfc1ebbe800679128384f1f06d8cc1dd93ea5905a6b00577cf3","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CL","submitted_at":"2018-06-14T12:48:31Z","title_canon_sha256":"20384986ec4a0d807013ed9c1c603b081aa9e61c08b087496ed8f78150439ce3"},"schema_version":"1.0","source":{"id":"1806.05507","kind":"arxiv","version":1}},"canonical_sha256":"e19ef9f7c97fb511cd72c11215adbe4ec0e5fd9deee8c610a2ae85c01ff2a34a","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"e19ef9f7c97fb511cd72c11215adbe4ec0e5fd9deee8c610a2ae85c01ff2a34a","first_computed_at":"2026-05-18T00:13:15.008769Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:13:15.008769Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"1ECNwJ3PtVFs9Oxsp0jPrZ9CHxn+WXvnWdASmGfockkiDxjHDD/aAc3rf+g/U+JnHhRDBIrQFjxmfy5E9N1NBA==","signature_status":"signed_v1","signed_at":"2026-05-18T00:13:15.009420Z","signed_message":"canonical_sha256_bytes"},"source_id":"1806.05507","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:680d0e1ad848425e2466760fa096022b3bd3d99bd0e2db58ba4de5ec3cebaf95","sha256:de243283ec27b9c948793bac23a67c13105aa7209f37778729bb214ee8d96ed5"],"state_sha256":"1d140b58d6c11e25447378250e3a0c24ff7da2532f414c3a6d6d01c993f56407"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"UBh//HYRjo8POTYvGbzbv6lgDoJWXQ61ul35BuWLFTf0sRnNoxgI6oDm89myykm1nMUodDZakWuteqnupi25BQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-26T11:02:49.247634Z","bundle_sha256":"e8058dd33dde6ab76d3b157e2fdef3b7db4e5cb5a24c4e724a661185fa15d8ab"}}