{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:EDSWMLG2QWISITZWQ45R4U6H6L","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":"7ad49a5263d122397cd880403905d3d1a386013a662042a0e2fbdcc5b68252d3","cross_cats_sorted":["cs.AI","cs.LG"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CL","submitted_at":"2018-08-27T14:17:08Z","title_canon_sha256":"509b61fc278ee25277bd03a877bf85ccd74a3b8aa72988da46e2de61363cacb9"},"schema_version":"1.0","source":{"id":"1808.08858","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1808.08858","created_at":"2026-05-18T00:07:13Z"},{"alias_kind":"arxiv_version","alias_value":"1808.08858v1","created_at":"2026-05-18T00:07:13Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1808.08858","created_at":"2026-05-18T00:07:13Z"},{"alias_kind":"pith_short_12","alias_value":"EDSWMLG2QWIS","created_at":"2026-05-18T12:32:22Z"},{"alias_kind":"pith_short_16","alias_value":"EDSWMLG2QWISITZW","created_at":"2026-05-18T12:32:22Z"},{"alias_kind":"pith_short_8","alias_value":"EDSWMLG2","created_at":"2026-05-18T12:32:22Z"}],"graph_snapshots":[{"event_id":"sha256:4953e356a8de9e4b136e5757a7d9ba65e23483d82095c541fc645070c04c656c","target":"graph","created_at":"2026-05-18T00:07:13Z","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":"We present a neural framework for opinion summarization from online product reviews which is knowledge-lean and only requires light supervision (e.g., in the form of product domain labels and user-provided ratings). Our method combines two weakly supervised components to identify salient opinions and form extractive summaries from multiple reviews: an aspect extractor trained under a multi-task objective, and a sentiment predictor based on multiple instance learning. We introduce an opinion summarization dataset that includes a training set of product reviews from six diverse domains and human","authors_text":"Mirella Lapata, Stefanos Angelidis","cross_cats":["cs.AI","cs.LG"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CL","submitted_at":"2018-08-27T14:17:08Z","title":"Summarizing Opinions: Aspect Extraction Meets Sentiment Prediction and They Are Both Weakly Supervised"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1808.08858","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":"sha256:5266d5375fe90e5bb188d980a4e7fe2e54643fde10e14d58dce9686382cd0299","target":"record","created_at":"2026-05-18T00:07:13Z","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":"7ad49a5263d122397cd880403905d3d1a386013a662042a0e2fbdcc5b68252d3","cross_cats_sorted":["cs.AI","cs.LG"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CL","submitted_at":"2018-08-27T14:17:08Z","title_canon_sha256":"509b61fc278ee25277bd03a877bf85ccd74a3b8aa72988da46e2de61363cacb9"},"schema_version":"1.0","source":{"id":"1808.08858","kind":"arxiv","version":1}},"canonical_sha256":"20e5662cda8591244f36873b1e53c7f2c995969ad6e590f2d82e1e65abb56ce5","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"20e5662cda8591244f36873b1e53c7f2c995969ad6e590f2d82e1e65abb56ce5","first_computed_at":"2026-05-18T00:07:13.004528Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:07:13.004528Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"RyCA43LgQ+4i1Sf/c953RUZsFDe14c/tNZ77sFC5wZ3aojIWCPEfhbme1WcP809nFYIP/zhXsHiZPUrbweSsBg==","signature_status":"signed_v1","signed_at":"2026-05-18T00:07:13.005171Z","signed_message":"canonical_sha256_bytes"},"source_id":"1808.08858","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:5266d5375fe90e5bb188d980a4e7fe2e54643fde10e14d58dce9686382cd0299","sha256:4953e356a8de9e4b136e5757a7d9ba65e23483d82095c541fc645070c04c656c"],"state_sha256":"d5a1747521bce9c02803c4df1b436a682d3a5aeaefe36e6e7f472e096e5b35c4"}