{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2019:E2XDK6ZJE2CFSVA3XDTNNVXSOY","short_pith_number":"pith:E2XDK6ZJ","canonical_record":{"source":{"id":"1903.02120","kind":"arxiv","version":3},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2019-03-05T23:59:41Z","cross_cats_sorted":[],"title_canon_sha256":"398e20d517c38f2d9062a9ab8d0b296bb8afbeb522c13f9807c103270fa0c71b","abstract_canon_sha256":"47d803791036b47135d74187fd44603b9837e957e3db1d37d30166ea9e126d04"},"schema_version":"1.0"},"canonical_sha256":"26ae357b29268459541bb8e6d6d6f27607a929dea1007778cd9672c643961ff1","source":{"kind":"arxiv","id":"1903.02120","version":3},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1903.02120","created_at":"2026-05-17T23:49:21Z"},{"alias_kind":"arxiv_version","alias_value":"1903.02120v3","created_at":"2026-05-17T23:49:21Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1903.02120","created_at":"2026-05-17T23:49:21Z"},{"alias_kind":"pith_short_12","alias_value":"E2XDK6ZJE2CF","created_at":"2026-05-18T12:33:15Z"},{"alias_kind":"pith_short_16","alias_value":"E2XDK6ZJE2CFSVA3","created_at":"2026-05-18T12:33:15Z"},{"alias_kind":"pith_short_8","alias_value":"E2XDK6ZJ","created_at":"2026-05-18T12:33:15Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2019:E2XDK6ZJE2CFSVA3XDTNNVXSOY","target":"record","payload":{"canonical_record":{"source":{"id":"1903.02120","kind":"arxiv","version":3},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2019-03-05T23:59:41Z","cross_cats_sorted":[],"title_canon_sha256":"398e20d517c38f2d9062a9ab8d0b296bb8afbeb522c13f9807c103270fa0c71b","abstract_canon_sha256":"47d803791036b47135d74187fd44603b9837e957e3db1d37d30166ea9e126d04"},"schema_version":"1.0"},"canonical_sha256":"26ae357b29268459541bb8e6d6d6f27607a929dea1007778cd9672c643961ff1","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-17T23:49:21.808389Z","signature_b64":"NNiZ/O1AEAji0WjUm+j2xMY9bSA8rtsZt+tfbfwHDnS6YBdVgVsUPZimrSo5mibL9k3LbPlvntHx9uaywmxVBw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"26ae357b29268459541bb8e6d6d6f27607a929dea1007778cd9672c643961ff1","last_reissued_at":"2026-05-17T23:49:21.807868Z","signature_status":"signed_v1","first_computed_at":"2026-05-17T23:49:21.807868Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1903.02120","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":"2026-05-17T23:49:21Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"ArUYb3B5mKiEXDDbK1Z7zgY35AApA96UpJxpGL2vG4kYwPGihrgi1PlKbis0N3B1fqheOvcZM/vq1awY/xE0Bg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-26T15:04:15.668738Z"},"content_sha256":"02f388a47a3acb900efaf62b9a1b7b1a36a22e64318c8e87c8adfd0c1636ceb9","schema_version":"1.0","event_id":"sha256:02f388a47a3acb900efaf62b9a1b7b1a36a22e64318c8e87c8adfd0c1636ceb9"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2019:E2XDK6ZJE2CFSVA3XDTNNVXSOY","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Decoders Matter for Semantic Segmentation: Data-Dependent Decoding Enables Flexible Feature Aggregation","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cs.CV","authors_text":"Chunhua Shen, Tong He, Youliang Yan, Zhi Tian","submitted_at":"2019-03-05T23:59:41Z","abstract_excerpt":"Recent semantic segmentation methods exploit encoder-decoder architectures to produce the desired pixel-wise segmentation prediction. The last layer of the decoders is typically a bilinear upsampling procedure to recover the final pixel-wise prediction. We empirically show that this oversimple and data-independent bilinear upsampling may lead to sub-optimal results.\n  In this work, we propose a data-dependent upsampling (DUpsampling) to replace bilinear, which takes advantages of the redundancy in the label space of semantic segmentation and is able to recover the pixel-wise prediction from lo"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1903.02120","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":""},"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":"2026-05-17T23:49:21Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"k6Rbp/KBvVRsIO8G6KLqwHTsUEYx4FleznypD8TB0HC5aDks50gMJWagNO5XQGg7ClSmDgzHejqUnc4NuTNtBw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-26T15:04:15.669097Z"},"content_sha256":"7c0c932cf1f63ab477bdaa662d39efa9577ceb9d6eac66c9b23cfbc888b48c16","schema_version":"1.0","event_id":"sha256:7c0c932cf1f63ab477bdaa662d39efa9577ceb9d6eac66c9b23cfbc888b48c16"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/E2XDK6ZJE2CFSVA3XDTNNVXSOY/bundle.json","state_url":"https://pith.science/pith/E2XDK6ZJE2CFSVA3XDTNNVXSOY/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/E2XDK6ZJE2CFSVA3XDTNNVXSOY/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":"2026-05-26T15:04:15Z","links":{"resolver":"https://pith.science/pith/E2XDK6ZJE2CFSVA3XDTNNVXSOY","bundle":"https://pith.science/pith/E2XDK6ZJE2CFSVA3XDTNNVXSOY/bundle.json","state":"https://pith.science/pith/E2XDK6ZJE2CFSVA3XDTNNVXSOY/state.json","well_known_bundle":"https://pith.science/.well-known/pith/E2XDK6ZJE2CFSVA3XDTNNVXSOY/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2019:E2XDK6ZJE2CFSVA3XDTNNVXSOY","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":"47d803791036b47135d74187fd44603b9837e957e3db1d37d30166ea9e126d04","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2019-03-05T23:59:41Z","title_canon_sha256":"398e20d517c38f2d9062a9ab8d0b296bb8afbeb522c13f9807c103270fa0c71b"},"schema_version":"1.0","source":{"id":"1903.02120","kind":"arxiv","version":3}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1903.02120","created_at":"2026-05-17T23:49:21Z"},{"alias_kind":"arxiv_version","alias_value":"1903.02120v3","created_at":"2026-05-17T23:49:21Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1903.02120","created_at":"2026-05-17T23:49:21Z"},{"alias_kind":"pith_short_12","alias_value":"E2XDK6ZJE2CF","created_at":"2026-05-18T12:33:15Z"},{"alias_kind":"pith_short_16","alias_value":"E2XDK6ZJE2CFSVA3","created_at":"2026-05-18T12:33:15Z"},{"alias_kind":"pith_short_8","alias_value":"E2XDK6ZJ","created_at":"2026-05-18T12:33:15Z"}],"graph_snapshots":[{"event_id":"sha256:7c0c932cf1f63ab477bdaa662d39efa9577ceb9d6eac66c9b23cfbc888b48c16","target":"graph","created_at":"2026-05-17T23:49:21Z","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":"Recent semantic segmentation methods exploit encoder-decoder architectures to produce the desired pixel-wise segmentation prediction. The last layer of the decoders is typically a bilinear upsampling procedure to recover the final pixel-wise prediction. We empirically show that this oversimple and data-independent bilinear upsampling may lead to sub-optimal results.\n  In this work, we propose a data-dependent upsampling (DUpsampling) to replace bilinear, which takes advantages of the redundancy in the label space of semantic segmentation and is able to recover the pixel-wise prediction from lo","authors_text":"Chunhua Shen, Tong He, Youliang Yan, Zhi Tian","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2019-03-05T23:59:41Z","title":"Decoders Matter for Semantic Segmentation: Data-Dependent Decoding Enables Flexible Feature Aggregation"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1903.02120","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":"sha256:02f388a47a3acb900efaf62b9a1b7b1a36a22e64318c8e87c8adfd0c1636ceb9","target":"record","created_at":"2026-05-17T23:49:21Z","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":"47d803791036b47135d74187fd44603b9837e957e3db1d37d30166ea9e126d04","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2019-03-05T23:59:41Z","title_canon_sha256":"398e20d517c38f2d9062a9ab8d0b296bb8afbeb522c13f9807c103270fa0c71b"},"schema_version":"1.0","source":{"id":"1903.02120","kind":"arxiv","version":3}},"canonical_sha256":"26ae357b29268459541bb8e6d6d6f27607a929dea1007778cd9672c643961ff1","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"26ae357b29268459541bb8e6d6d6f27607a929dea1007778cd9672c643961ff1","first_computed_at":"2026-05-17T23:49:21.807868Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-17T23:49:21.807868Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"NNiZ/O1AEAji0WjUm+j2xMY9bSA8rtsZt+tfbfwHDnS6YBdVgVsUPZimrSo5mibL9k3LbPlvntHx9uaywmxVBw==","signature_status":"signed_v1","signed_at":"2026-05-17T23:49:21.808389Z","signed_message":"canonical_sha256_bytes"},"source_id":"1903.02120","source_kind":"arxiv","source_version":3}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:02f388a47a3acb900efaf62b9a1b7b1a36a22e64318c8e87c8adfd0c1636ceb9","sha256:7c0c932cf1f63ab477bdaa662d39efa9577ceb9d6eac66c9b23cfbc888b48c16"],"state_sha256":"60530afee3e3b66b7a6a8192dbd1fabdbd5af9db21989788c8fdb1230d88da0c"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Zg/+AIURq1o6PcFhZfSFseqqfg0PvZq4jXPiQqHAF5yFJQTKdXXZMpeNE0EjXNAHUq0KUT37HSLMKXCH7OEsBQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-26T15:04:15.671795Z","bundle_sha256":"c9b307ea84c92068650c0d8d4dad89537d6d829dd4fdb540ba9074eed53e8e55"}}