{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2019:OQGR7MS54Y6S7BWWUF5EV6FILU","short_pith_number":"pith:OQGR7MS5","canonical_record":{"source":{"id":"1910.11102","kind":"arxiv","version":4},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2019-10-17T13:52:49Z","cross_cats_sorted":["cs.MM"],"title_canon_sha256":"5ba347c485fc71ac9dc8100bbad283ac13189d26f82dc4934b51ebffbc59c394","abstract_canon_sha256":"be730a35002deb3cd811a9eca933d2c81f9dfdd74abe7b0e1ca7042d60998192"},"schema_version":"1.0"},"canonical_sha256":"740d1fb25de63d2f86d6a17a4af8a85d059771dcc3960b70cdc21f9c357bc3e0","source":{"kind":"arxiv","id":"1910.11102","version":4},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1910.11102","created_at":"2026-07-05T01:13:07Z"},{"alias_kind":"arxiv_version","alias_value":"1910.11102v4","created_at":"2026-07-05T01:13:07Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1910.11102","created_at":"2026-07-05T01:13:07Z"},{"alias_kind":"pith_short_12","alias_value":"OQGR7MS54Y6S","created_at":"2026-07-05T01:13:07Z"},{"alias_kind":"pith_short_16","alias_value":"OQGR7MS54Y6S7BWW","created_at":"2026-07-05T01:13:07Z"},{"alias_kind":"pith_short_8","alias_value":"OQGR7MS5","created_at":"2026-07-05T01:13:07Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2019:OQGR7MS54Y6S7BWWUF5EV6FILU","target":"record","payload":{"canonical_record":{"source":{"id":"1910.11102","kind":"arxiv","version":4},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2019-10-17T13:52:49Z","cross_cats_sorted":["cs.MM"],"title_canon_sha256":"5ba347c485fc71ac9dc8100bbad283ac13189d26f82dc4934b51ebffbc59c394","abstract_canon_sha256":"be730a35002deb3cd811a9eca933d2c81f9dfdd74abe7b0e1ca7042d60998192"},"schema_version":"1.0"},"canonical_sha256":"740d1fb25de63d2f86d6a17a4af8a85d059771dcc3960b70cdc21f9c357bc3e0","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T01:13:07.065156Z","signature_b64":"rR0FbFUaOOL7wAjtHkWPWvnSsBNfnWmc1hzn5HliELNBDxulEw2+44elcKjBnuQlqFHMOl3gKcEjmXrNjeFvDQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"740d1fb25de63d2f86d6a17a4af8a85d059771dcc3960b70cdc21f9c357bc3e0","last_reissued_at":"2026-07-05T01:13:07.064574Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T01:13:07.064574Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1910.11102","source_version":4,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-07-05T01:13:07Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"zsqiDmtEyMpn5m8nk7fpZatK56NJ8zMVolGkM6S9WOhJZDdbvLdeu6+jh79e+65x7ygnntiEGhgZCc2/G0XjAw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-11T19:30:43.166721Z"},"content_sha256":"c567cd90da0c7027eb0f66c559903b8083785597cb35da26092d244554db5905","schema_version":"1.0","event_id":"sha256:c567cd90da0c7027eb0f66c559903b8083785597cb35da26092d244554db5905"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2019:OQGR7MS54Y6S7BWWUF5EV6FILU","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Vatex Video Captioning Challenge 2020: Multi-View Features and Hybrid Reward Strategies for Video Captioning","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cs.MM"],"primary_cat":"cs.CV","authors_text":"Jing Liu, Longteng Guo, Peng Yao, Shichen Lu, Wei Liu, Xinxin Zhu","submitted_at":"2019-10-17T13:52:49Z","abstract_excerpt":"This report describes our solution for the VATEX Captioning Challenge 2020, which requires generating descriptions for the videos in both English and Chinese languages. We identified three crucial factors that improve the performance, namely: multi-view features, hybrid reward, and diverse ensemble. Based on our method of VATEX 2019 challenge, we achieved significant improvements this year with more advanced model architectures, combination of appearance and motion features, and careful hyper-parameters tuning. Our method achieves very competitive results on both of the Chinese and English vid"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1910.11102","kind":"arxiv","version":4},"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/1910.11102/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":"2026-07-05T01:13:07Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"LBALEGFDI9vx9i5dLz49lXe3DXOacqY7aPg4Y3foYbZ0WSxbhXGIZ94n4WAN3UUnvMxJaDTylwac9FCT8jqnAA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-11T19:30:43.167222Z"},"content_sha256":"ee83bc7a99effdecbe64f125398962c7696d0aef51a491d5390b7ee957c5e562","schema_version":"1.0","event_id":"sha256:ee83bc7a99effdecbe64f125398962c7696d0aef51a491d5390b7ee957c5e562"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/OQGR7MS54Y6S7BWWUF5EV6FILU/bundle.json","state_url":"https://pith.science/pith/OQGR7MS54Y6S7BWWUF5EV6FILU/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/OQGR7MS54Y6S7BWWUF5EV6FILU/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":"2026-08-11T19:30:43Z","links":{"resolver":"https://pith.science/pith/OQGR7MS54Y6S7BWWUF5EV6FILU","bundle":"https://pith.science/pith/OQGR7MS54Y6S7BWWUF5EV6FILU/bundle.json","state":"https://pith.science/pith/OQGR7MS54Y6S7BWWUF5EV6FILU/state.json","well_known_bundle":"https://pith.science/.well-known/pith/OQGR7MS54Y6S7BWWUF5EV6FILU/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2019:OQGR7MS54Y6S7BWWUF5EV6FILU","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":"be730a35002deb3cd811a9eca933d2c81f9dfdd74abe7b0e1ca7042d60998192","cross_cats_sorted":["cs.MM"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2019-10-17T13:52:49Z","title_canon_sha256":"5ba347c485fc71ac9dc8100bbad283ac13189d26f82dc4934b51ebffbc59c394"},"schema_version":"1.0","source":{"id":"1910.11102","kind":"arxiv","version":4}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1910.11102","created_at":"2026-07-05T01:13:07Z"},{"alias_kind":"arxiv_version","alias_value":"1910.11102v4","created_at":"2026-07-05T01:13:07Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1910.11102","created_at":"2026-07-05T01:13:07Z"},{"alias_kind":"pith_short_12","alias_value":"OQGR7MS54Y6S","created_at":"2026-07-05T01:13:07Z"},{"alias_kind":"pith_short_16","alias_value":"OQGR7MS54Y6S7BWW","created_at":"2026-07-05T01:13:07Z"},{"alias_kind":"pith_short_8","alias_value":"OQGR7MS5","created_at":"2026-07-05T01:13:07Z"}],"graph_snapshots":[{"event_id":"sha256:ee83bc7a99effdecbe64f125398962c7696d0aef51a491d5390b7ee957c5e562","target":"graph","created_at":"2026-07-05T01:13:07Z","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/1910.11102/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"This report describes our solution for the VATEX Captioning Challenge 2020, which requires generating descriptions for the videos in both English and Chinese languages. We identified three crucial factors that improve the performance, namely: multi-view features, hybrid reward, and diverse ensemble. Based on our method of VATEX 2019 challenge, we achieved significant improvements this year with more advanced model architectures, combination of appearance and motion features, and careful hyper-parameters tuning. Our method achieves very competitive results on both of the Chinese and English vid","authors_text":"Jing Liu, Longteng Guo, Peng Yao, Shichen Lu, Wei Liu, Xinxin Zhu","cross_cats":["cs.MM"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2019-10-17T13:52:49Z","title":"Vatex Video Captioning Challenge 2020: Multi-View Features and Hybrid Reward Strategies for Video Captioning"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1910.11102","kind":"arxiv","version":4},"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:c567cd90da0c7027eb0f66c559903b8083785597cb35da26092d244554db5905","target":"record","created_at":"2026-07-05T01:13:07Z","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":"be730a35002deb3cd811a9eca933d2c81f9dfdd74abe7b0e1ca7042d60998192","cross_cats_sorted":["cs.MM"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2019-10-17T13:52:49Z","title_canon_sha256":"5ba347c485fc71ac9dc8100bbad283ac13189d26f82dc4934b51ebffbc59c394"},"schema_version":"1.0","source":{"id":"1910.11102","kind":"arxiv","version":4}},"canonical_sha256":"740d1fb25de63d2f86d6a17a4af8a85d059771dcc3960b70cdc21f9c357bc3e0","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"740d1fb25de63d2f86d6a17a4af8a85d059771dcc3960b70cdc21f9c357bc3e0","first_computed_at":"2026-07-05T01:13:07.064574Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T01:13:07.064574Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"rR0FbFUaOOL7wAjtHkWPWvnSsBNfnWmc1hzn5HliELNBDxulEw2+44elcKjBnuQlqFHMOl3gKcEjmXrNjeFvDQ==","signature_status":"signed_v1","signed_at":"2026-07-05T01:13:07.065156Z","signed_message":"canonical_sha256_bytes"},"source_id":"1910.11102","source_kind":"arxiv","source_version":4}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:c567cd90da0c7027eb0f66c559903b8083785597cb35da26092d244554db5905","sha256:ee83bc7a99effdecbe64f125398962c7696d0aef51a491d5390b7ee957c5e562"],"state_sha256":"49438f76d051c87a52975d15b4bde1e81d99021bb000c87a21a0fbc5861a8981"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"6Y2w3Lqo4ZJZGKKh2TC+oX0HCEBis1bSnS8LzmSCc85uP/AA4GPO4SGbratlcveuSmKx5dBXDqYYyaYHKoD9CQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-11T19:30:43.171786Z","bundle_sha256":"696d4369a3cc29a0ebfcd020ff9850f8419fd16f078d1e7a05b45ff0d4b920de"}}