{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2019:UDHNKSQU4WEJUUDFMCS6EQEOBV","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":"6c1728e9e96d2ad134f22ac46d3aceeb50a6d41d0979179187a512d654c6e353","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2019-05-15T16:51:18Z","title_canon_sha256":"2b66e085c6adc09dc1462948ddbbd2ee813b145bfc4e9d2a205b52eaeb2c7827"},"schema_version":"1.0","source":{"id":"1905.06292","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1905.06292","created_at":"2026-05-17T23:46:02Z"},{"alias_kind":"arxiv_version","alias_value":"1905.06292v2","created_at":"2026-05-17T23:46:02Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1905.06292","created_at":"2026-05-17T23:46:02Z"},{"alias_kind":"pith_short_12","alias_value":"UDHNKSQU4WEJ","created_at":"2026-05-18T12:33:30Z"},{"alias_kind":"pith_short_16","alias_value":"UDHNKSQU4WEJUUDF","created_at":"2026-05-18T12:33:30Z"},{"alias_kind":"pith_short_8","alias_value":"UDHNKSQU","created_at":"2026-05-18T12:33:30Z"}],"graph_snapshots":[{"event_id":"sha256:b2d949cbd3b5338926efcb170d09007f7eca07c5c35d996ba7aa8ccfd1d0c7b7","target":"graph","created_at":"2026-05-17T23:46:02Z","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":"In this paper, we propose a novel generative adversarial network (GAN) for 3D point clouds generation, which is called tree-GAN. To achieve state-of-the-art performance for multi-class 3D point cloud generation, a tree-structured graph convolution network (TreeGCN) is introduced as a generator for tree-GAN. Because TreeGCN performs graph convolutions within a tree, it can use ancestor information to boost the representation power for features. To evaluate GANs for 3D point clouds accurately, we develop a novel evaluation metric called Frechet point cloud distance (FPD). Experimental results de","authors_text":"Dong Wook Shu, Junseok Kwon, Sung Woo Park","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2019-05-15T16:51:18Z","title":"3D Point Cloud Generative Adversarial Network Based on Tree Structured Graph Convolutions"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1905.06292","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":"sha256:2f622f72eae1041ada7b4a67ad016a4947bd61a34e9b321cc52b83e97226fb1a","target":"record","created_at":"2026-05-17T23:46:02Z","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":"6c1728e9e96d2ad134f22ac46d3aceeb50a6d41d0979179187a512d654c6e353","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2019-05-15T16:51:18Z","title_canon_sha256":"2b66e085c6adc09dc1462948ddbbd2ee813b145bfc4e9d2a205b52eaeb2c7827"},"schema_version":"1.0","source":{"id":"1905.06292","kind":"arxiv","version":2}},"canonical_sha256":"a0ced54a14e5889a506560a5e2408e0d4613398bc55d0f888987f2d78fb02349","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"a0ced54a14e5889a506560a5e2408e0d4613398bc55d0f888987f2d78fb02349","first_computed_at":"2026-05-17T23:46:02.757568Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-17T23:46:02.757568Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"C8WcXt7PDqmV4rTX0gjWf9TBK2RyUgGXemIZ4p8jMdr00mDLwbZdUIC+1AfbDDFj/VBbjQt31tnW4SOlHaYzBw==","signature_status":"signed_v1","signed_at":"2026-05-17T23:46:02.758275Z","signed_message":"canonical_sha256_bytes"},"source_id":"1905.06292","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:2f622f72eae1041ada7b4a67ad016a4947bd61a34e9b321cc52b83e97226fb1a","sha256:b2d949cbd3b5338926efcb170d09007f7eca07c5c35d996ba7aa8ccfd1d0c7b7"],"state_sha256":"0a25dc29c64156333ab11fc4f0ecd46dd2db534da80e0bd704ed1eece484f9f5"}