{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2020:OVNRJTLAVIOBW2VRK5FGNXL5B6","short_pith_number":"pith:OVNRJTLA","canonical_record":{"source":{"id":"2005.13485","kind":"arxiv","version":3},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CL","submitted_at":"2020-05-27T16:47:44Z","cross_cats_sorted":["cs.LG"],"title_canon_sha256":"04d16807e4aacc524e82655e9c42a0498e8e1939f00c8e3afd79724e3ca22193","abstract_canon_sha256":"e953eb697005632cdf9ea3fbb1a6ee9824f00439fe0db6ce86c404fc291dedb1"},"schema_version":"1.0"},"canonical_sha256":"755b14cd60aa1c1b6ab1574a66dd7d0fa8a3b72a369314dd0fa22dafea9164c6","source":{"kind":"arxiv","id":"2005.13485","version":3},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2005.13485","created_at":"2026-07-05T02:01:12Z"},{"alias_kind":"arxiv_version","alias_value":"2005.13485v3","created_at":"2026-07-05T02:01:12Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2005.13485","created_at":"2026-07-05T02:01:12Z"},{"alias_kind":"pith_short_12","alias_value":"OVNRJTLAVIOB","created_at":"2026-07-05T02:01:12Z"},{"alias_kind":"pith_short_16","alias_value":"OVNRJTLAVIOBW2VR","created_at":"2026-07-05T02:01:12Z"},{"alias_kind":"pith_short_8","alias_value":"OVNRJTLA","created_at":"2026-07-05T02:01:12Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2020:OVNRJTLAVIOBW2VRK5FGNXL5B6","target":"record","payload":{"canonical_record":{"source":{"id":"2005.13485","kind":"arxiv","version":3},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CL","submitted_at":"2020-05-27T16:47:44Z","cross_cats_sorted":["cs.LG"],"title_canon_sha256":"04d16807e4aacc524e82655e9c42a0498e8e1939f00c8e3afd79724e3ca22193","abstract_canon_sha256":"e953eb697005632cdf9ea3fbb1a6ee9824f00439fe0db6ce86c404fc291dedb1"},"schema_version":"1.0"},"canonical_sha256":"755b14cd60aa1c1b6ab1574a66dd7d0fa8a3b72a369314dd0fa22dafea9164c6","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T02:01:12.107824Z","signature_b64":"VJVVImvrNVIowM7f6oOL8afjaSkdjKTzWUrzWUF4OeAfZKcqWGLJavmja2naozzdmRoY3evmxOydZ/46BtNQBg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"755b14cd60aa1c1b6ab1574a66dd7d0fa8a3b72a369314dd0fa22dafea9164c6","last_reissued_at":"2026-07-05T02:01:12.107387Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T02:01:12.107387Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2005.13485","source_version":3,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-07-05T02:01:12Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"UqU15XF6QAPRzHY7oFNBPgFYsOB0DRj2G/7r8Wf7gjHamr83zZGphIyBPV1KKs9sYDBBaL7m68R9SJlexuXQBA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-07T22:06:25.161712Z"},"content_sha256":"7bcd244102b07479bde4f5130100855b1548b99e0c75cf3c0e2acd58d4341349","schema_version":"1.0","event_id":"sha256:7bcd244102b07479bde4f5130100855b1548b99e0c75cf3c0e2acd58d4341349"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2020:OVNRJTLAVIOBW2VRK5FGNXL5B6","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Unsupervised Dual Paraphrasing for Two-stage Semantic Parsing","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cs.LG"],"primary_cat":"cs.CL","authors_text":"Chen Liu, Chenyu Yang, Kai Yu, Lu Chen, Rao Ma, Ruisheng Cao, Su Zhu, Yanbin Zhao","submitted_at":"2020-05-27T16:47:44Z","abstract_excerpt":"One daunting problem for semantic parsing is the scarcity of annotation. Aiming to reduce nontrivial human labor, we propose a two-stage semantic parsing framework, where the first stage utilizes an unsupervised paraphrase model to convert an unlabeled natural language utterance into the canonical utterance. The downstream naive semantic parser accepts the intermediate output and returns the target logical form. Furthermore, the entire training process is split into two phases: pre-training and cycle learning. Three tailored self-supervised tasks are introduced throughout training to activate "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2005.13485","kind":"arxiv","version":3},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2005.13485/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"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":"2026-07-05T02:01:12Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"x5JI6l/raf9bE2pcPmCjO/1xaO79CIq395irK0Yak7U0pqa15zB1b2Lpi85UtExizJASdu/j+7B0xW9vqEtuCw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-07T22:06:25.162224Z"},"content_sha256":"fd7fac5ee9b02caa1a01a9fee81959988c42f3c222bcba9e26589c3cea66d026","schema_version":"1.0","event_id":"sha256:fd7fac5ee9b02caa1a01a9fee81959988c42f3c222bcba9e26589c3cea66d026"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/OVNRJTLAVIOBW2VRK5FGNXL5B6/bundle.json","state_url":"https://pith.science/pith/OVNRJTLAVIOBW2VRK5FGNXL5B6/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/OVNRJTLAVIOBW2VRK5FGNXL5B6/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":"2026-08-07T22:06:25Z","links":{"resolver":"https://pith.science/pith/OVNRJTLAVIOBW2VRK5FGNXL5B6","bundle":"https://pith.science/pith/OVNRJTLAVIOBW2VRK5FGNXL5B6/bundle.json","state":"https://pith.science/pith/OVNRJTLAVIOBW2VRK5FGNXL5B6/state.json","well_known_bundle":"https://pith.science/.well-known/pith/OVNRJTLAVIOBW2VRK5FGNXL5B6/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2020:OVNRJTLAVIOBW2VRK5FGNXL5B6","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":"e953eb697005632cdf9ea3fbb1a6ee9824f00439fe0db6ce86c404fc291dedb1","cross_cats_sorted":["cs.LG"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CL","submitted_at":"2020-05-27T16:47:44Z","title_canon_sha256":"04d16807e4aacc524e82655e9c42a0498e8e1939f00c8e3afd79724e3ca22193"},"schema_version":"1.0","source":{"id":"2005.13485","kind":"arxiv","version":3}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2005.13485","created_at":"2026-07-05T02:01:12Z"},{"alias_kind":"arxiv_version","alias_value":"2005.13485v3","created_at":"2026-07-05T02:01:12Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2005.13485","created_at":"2026-07-05T02:01:12Z"},{"alias_kind":"pith_short_12","alias_value":"OVNRJTLAVIOB","created_at":"2026-07-05T02:01:12Z"},{"alias_kind":"pith_short_16","alias_value":"OVNRJTLAVIOBW2VR","created_at":"2026-07-05T02:01:12Z"},{"alias_kind":"pith_short_8","alias_value":"OVNRJTLA","created_at":"2026-07-05T02:01:12Z"}],"graph_snapshots":[{"event_id":"sha256:fd7fac5ee9b02caa1a01a9fee81959988c42f3c222bcba9e26589c3cea66d026","target":"graph","created_at":"2026-07-05T02:01:12Z","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/2005.13485/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"One daunting problem for semantic parsing is the scarcity of annotation. Aiming to reduce nontrivial human labor, we propose a two-stage semantic parsing framework, where the first stage utilizes an unsupervised paraphrase model to convert an unlabeled natural language utterance into the canonical utterance. The downstream naive semantic parser accepts the intermediate output and returns the target logical form. Furthermore, the entire training process is split into two phases: pre-training and cycle learning. Three tailored self-supervised tasks are introduced throughout training to activate ","authors_text":"Chen Liu, Chenyu Yang, Kai Yu, Lu Chen, Rao Ma, Ruisheng Cao, Su Zhu, Yanbin Zhao","cross_cats":["cs.LG"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CL","submitted_at":"2020-05-27T16:47:44Z","title":"Unsupervised Dual Paraphrasing for Two-stage Semantic Parsing"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2005.13485","kind":"arxiv","version":3},"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":"sha256:7bcd244102b07479bde4f5130100855b1548b99e0c75cf3c0e2acd58d4341349","target":"record","created_at":"2026-07-05T02:01:12Z","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":"e953eb697005632cdf9ea3fbb1a6ee9824f00439fe0db6ce86c404fc291dedb1","cross_cats_sorted":["cs.LG"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CL","submitted_at":"2020-05-27T16:47:44Z","title_canon_sha256":"04d16807e4aacc524e82655e9c42a0498e8e1939f00c8e3afd79724e3ca22193"},"schema_version":"1.0","source":{"id":"2005.13485","kind":"arxiv","version":3}},"canonical_sha256":"755b14cd60aa1c1b6ab1574a66dd7d0fa8a3b72a369314dd0fa22dafea9164c6","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"755b14cd60aa1c1b6ab1574a66dd7d0fa8a3b72a369314dd0fa22dafea9164c6","first_computed_at":"2026-07-05T02:01:12.107387Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T02:01:12.107387Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"VJVVImvrNVIowM7f6oOL8afjaSkdjKTzWUrzWUF4OeAfZKcqWGLJavmja2naozzdmRoY3evmxOydZ/46BtNQBg==","signature_status":"signed_v1","signed_at":"2026-07-05T02:01:12.107824Z","signed_message":"canonical_sha256_bytes"},"source_id":"2005.13485","source_kind":"arxiv","source_version":3}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:7bcd244102b07479bde4f5130100855b1548b99e0c75cf3c0e2acd58d4341349","sha256:fd7fac5ee9b02caa1a01a9fee81959988c42f3c222bcba9e26589c3cea66d026"],"state_sha256":"233756571a0201233ffe8407af03efdce6933f74aa4bc150ab2dab33950d7f6e"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"R51ascDGllAs+ePZxUkjhW2GhS5C16URLVhTYrKf2Y4cfUwK/97ttOAK7t1M/RKA98V6lc8TJgZehR1PSCdJCg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-07T22:06:25.167058Z","bundle_sha256":"584bfd5cb04107086349eb93095353798d0404a4b79560e205aadfc9e467e961"}}