{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2017:V45OJU2QYUN6CGDZIV3ODCSMN2","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":"4c0c84634239d538168508ad001fcb182e4c15f35b7d36ac2c593c1645dc4c25","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CL","submitted_at":"2017-03-13T01:06:19Z","title_canon_sha256":"cb3d49efe657901236371b4c771a79569528d6a9c240faccc5082e5440a4e7be"},"schema_version":"1.0","source":{"id":"1703.04213","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1703.04213","created_at":"2026-05-18T00:48:41Z"},{"alias_kind":"arxiv_version","alias_value":"1703.04213v2","created_at":"2026-05-18T00:48:41Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1703.04213","created_at":"2026-05-18T00:48:41Z"},{"alias_kind":"pith_short_12","alias_value":"V45OJU2QYUN6","created_at":"2026-05-18T12:31:49Z"},{"alias_kind":"pith_short_16","alias_value":"V45OJU2QYUN6CGDZ","created_at":"2026-05-18T12:31:49Z"},{"alias_kind":"pith_short_8","alias_value":"V45OJU2Q","created_at":"2026-05-18T12:31:49Z"}],"graph_snapshots":[{"event_id":"sha256:54a2a3920a038486033ac71a324b63380b49cea91c442fbe436c3a99c1ee4327","target":"graph","created_at":"2026-05-18T00:48:41Z","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":"Mining textual patterns in news, tweets, papers, and many other kinds of text corpora has been an active theme in text mining and NLP research. Previous studies adopt a dependency parsing-based pattern discovery approach. However, the parsing results lose rich context around entities in the patterns, and the process is costly for a corpus of large scale. In this study, we propose a novel typed textual pattern structure, called meta pattern, which is extended to a frequent, informative, and precise subsequence pattern in certain context. We propose an efficient framework, called MetaPAD, which ","authors_text":"Jiawei Han, Jingbo Shang, Lance M. Kaplan, Meng Jiang, Taylor Cassidy, Timothy P. Hanratty, Xiang Ren","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CL","submitted_at":"2017-03-13T01:06:19Z","title":"MetaPAD: Meta Pattern Discovery from Massive Text Corpora"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1703.04213","kind":"arxiv","version":2},"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":"sha256:2b9f0b48e6983a1fee5c02ed1b27097dc65254ae8500d303d12e18b3d47bdd8b","target":"record","created_at":"2026-05-18T00:48:41Z","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":"4c0c84634239d538168508ad001fcb182e4c15f35b7d36ac2c593c1645dc4c25","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CL","submitted_at":"2017-03-13T01:06:19Z","title_canon_sha256":"cb3d49efe657901236371b4c771a79569528d6a9c240faccc5082e5440a4e7be"},"schema_version":"1.0","source":{"id":"1703.04213","kind":"arxiv","version":2}},"canonical_sha256":"af3ae4d350c51be118794576e18a4c6e957e00bb57a82af74796fb93158d448e","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"af3ae4d350c51be118794576e18a4c6e957e00bb57a82af74796fb93158d448e","first_computed_at":"2026-05-18T00:48:41.564029Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:48:41.564029Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"p1O+LizbyhfLViqd6g2FDXKmMpqfmjLr1RNWz7xFBXEAU9HlnUaYiTCHn1w9CcGHIemq3Z7CGZth1VR6RvarDw==","signature_status":"signed_v1","signed_at":"2026-05-18T00:48:41.564496Z","signed_message":"canonical_sha256_bytes"},"source_id":"1703.04213","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:2b9f0b48e6983a1fee5c02ed1b27097dc65254ae8500d303d12e18b3d47bdd8b","sha256:54a2a3920a038486033ac71a324b63380b49cea91c442fbe436c3a99c1ee4327"],"state_sha256":"fc8b1f0e22c631fc183339560283abc5578767df24902bd466fd32616b42adbc"}