{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2021:DSUPCSLB7NZAV4MKUF5AVNJ7I5","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":"4a96b6008a3094740a28904edf535d93bc9b477ab182f5e29f157714b455045b","cross_cats_sorted":["cs.AI"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CL","submitted_at":"2021-09-15T05:53:40Z","title_canon_sha256":"bf9fe7dcd86dfa9ab556f5353b164109f2ab4e22b03f917d8b46a6c7b1844fb5"},"schema_version":"1.0","source":{"id":"2109.07095","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2109.07095","created_at":"2026-07-05T03:14:38Z"},{"alias_kind":"arxiv_version","alias_value":"2109.07095v1","created_at":"2026-07-05T03:14:38Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2109.07095","created_at":"2026-07-05T03:14:38Z"},{"alias_kind":"pith_short_12","alias_value":"DSUPCSLB7NZA","created_at":"2026-07-05T03:14:38Z"},{"alias_kind":"pith_short_16","alias_value":"DSUPCSLB7NZAV4MK","created_at":"2026-07-05T03:14:38Z"},{"alias_kind":"pith_short_8","alias_value":"DSUPCSLB","created_at":"2026-07-05T03:14:38Z"}],"graph_snapshots":[{"event_id":"sha256:a39191e2ab580f9e39a9ae42486675a17ff65daa2994b348389591f5f736019b","target":"graph","created_at":"2026-07-05T03:14:38Z","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"},"integrity":{"available":true,"clean":true,"detectors_run":[],"endpoint":"/pith/2109.07095/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Paraphrase generation is an important task in natural language processing. Previous works focus on sentence-level paraphrase generation, while ignoring document-level paraphrase generation, which is a more challenging and valuable task. In this paper, we explore the task of document-level paraphrase generation for the first time and focus on the inter-sentence diversity by considering sentence rewriting and reordering. We propose CoRPG (Coherence Relationship guided Paraphrase Generation), which leverages graph GRU to encode the coherence relationship graph and get the coherence-aware represen","authors_text":"Xiaojun Wan, Yitao Cai, Zhe Lin","cross_cats":["cs.AI"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CL","submitted_at":"2021-09-15T05:53:40Z","title":"Towards Document-Level Paraphrase Generation with Sentence Rewriting and Reordering"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2109.07095","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:f00b3e25335ade5ccacee941ec97838636cadcc7910b65387450122a484cfdab","target":"record","created_at":"2026-07-05T03:14:38Z","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":"4a96b6008a3094740a28904edf535d93bc9b477ab182f5e29f157714b455045b","cross_cats_sorted":["cs.AI"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CL","submitted_at":"2021-09-15T05:53:40Z","title_canon_sha256":"bf9fe7dcd86dfa9ab556f5353b164109f2ab4e22b03f917d8b46a6c7b1844fb5"},"schema_version":"1.0","source":{"id":"2109.07095","kind":"arxiv","version":1}},"canonical_sha256":"1ca8f14961fb720af18aa17a0ab53f476fff77b804e2179dd0d403678238c559","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"1ca8f14961fb720af18aa17a0ab53f476fff77b804e2179dd0d403678238c559","first_computed_at":"2026-07-05T03:14:38.763654Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T03:14:38.763654Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"NY1swgWsuBGyzYgHlj7GejB/GkzudH/jmRdBxJfRPS4JeK0D4on/IXCd4C66j71Tbs/1UjgR3DRQlKOXu/k+Dw==","signature_status":"signed_v1","signed_at":"2026-07-05T03:14:38.764127Z","signed_message":"canonical_sha256_bytes"},"source_id":"2109.07095","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:f00b3e25335ade5ccacee941ec97838636cadcc7910b65387450122a484cfdab","sha256:a39191e2ab580f9e39a9ae42486675a17ff65daa2994b348389591f5f736019b"],"state_sha256":"b6e7220ca168a9e4e5fb5ba3f5fa8b189b658513d7c3729b9a52ff10a0f68049"}