{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2019:D6A25WNISMZWEYEOXPMBGUWQRK","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":"3f21192c033deb7cfdcbb71e1cf561bc9d99e929be9f790073895962e3e86da8","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2019-06-07T02:21:16Z","title_canon_sha256":"1fba733c92a7d4941c15b78180e291c2a7147cc013e594b7a3ba6f261175aa90"},"schema_version":"1.0","source":{"id":"1906.02865","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1906.02865","created_at":"2026-05-17T23:43:57Z"},{"alias_kind":"arxiv_version","alias_value":"1906.02865v1","created_at":"2026-05-17T23:43:57Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1906.02865","created_at":"2026-05-17T23:43:57Z"},{"alias_kind":"pith_short_12","alias_value":"D6A25WNISMZW","created_at":"2026-05-18T12:33:15Z"},{"alias_kind":"pith_short_16","alias_value":"D6A25WNISMZWEYEO","created_at":"2026-05-18T12:33:15Z"},{"alias_kind":"pith_short_8","alias_value":"D6A25WNI","created_at":"2026-05-18T12:33:15Z"}],"graph_snapshots":[{"event_id":"sha256:d28ef578bd1a037d0d5cb3d202e5390500d936f94f71777339b1816d8c8aee76","target":"graph","created_at":"2026-05-17T23:43:57Z","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":"Hashing methods, which encode high-dimensional images with compact discrete codes, have been widely applied to enhance large-scale image retrieval. In this paper, we put forward Deep Spherical Quantization (DSQ), a novel method to make deep convolutional neural networks generate supervised and compact binary codes for efficient image search. Our approach simultaneously learns a mapping that transforms the input images into a low-dimensional discriminative space, and quantizes the transformed data points using multi-codebook quantization. To eliminate the negative effect of norm variance on cod","authors_text":"Ladan Tahvildari, Sepehr Eghbali","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2019-06-07T02:21:16Z","title":"Deep Spherical Quantization for Image Search"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1906.02865","kind":"arxiv","version":1},"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":"sha256:309dcc6fb3185c921a61be2f261f54b5acf430ad9b0b1db4e19473352303319e","target":"record","created_at":"2026-05-17T23:43:57Z","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":"3f21192c033deb7cfdcbb71e1cf561bc9d99e929be9f790073895962e3e86da8","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2019-06-07T02:21:16Z","title_canon_sha256":"1fba733c92a7d4941c15b78180e291c2a7147cc013e594b7a3ba6f261175aa90"},"schema_version":"1.0","source":{"id":"1906.02865","kind":"arxiv","version":1}},"canonical_sha256":"1f81aed9a8933362608ebbd81352d08a844e604454ae4a38eb65d620dadcd6c9","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"1f81aed9a8933362608ebbd81352d08a844e604454ae4a38eb65d620dadcd6c9","first_computed_at":"2026-05-17T23:43:57.240820Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-17T23:43:57.240820Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"wrlAnwAzKiDp5U1D6K4bXNPHzKh488rTkB4VwlHr0N39SWjnGFx/Zz2pWxicS3BSgM6qZAX/fgcz1k7jFaAYAg==","signature_status":"signed_v1","signed_at":"2026-05-17T23:43:57.241417Z","signed_message":"canonical_sha256_bytes"},"source_id":"1906.02865","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:309dcc6fb3185c921a61be2f261f54b5acf430ad9b0b1db4e19473352303319e","sha256:d28ef578bd1a037d0d5cb3d202e5390500d936f94f71777339b1816d8c8aee76"],"state_sha256":"6a0f9b6a844af0a325e8381858c3f22388bec362116a2f28c0e8177eb4d29dc6"}