{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:KHJN4KPNME75OPZVBXIUWN4L4O","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":"0e530d328d9905212dcd602353d0776fdd16f1c245f03ca5a62588a3d94275b9","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2018-09-05T11:17:09Z","title_canon_sha256":"4827658faa92ae126f7b770435185df6a04b32d6b56400176f0c5c793ec8bb90"},"schema_version":"1.0","source":{"id":"1809.01438","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1809.01438","created_at":"2026-05-18T00:06:27Z"},{"alias_kind":"arxiv_version","alias_value":"1809.01438v1","created_at":"2026-05-18T00:06:27Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1809.01438","created_at":"2026-05-18T00:06:27Z"},{"alias_kind":"pith_short_12","alias_value":"KHJN4KPNME75","created_at":"2026-05-18T12:32:33Z"},{"alias_kind":"pith_short_16","alias_value":"KHJN4KPNME75OPZV","created_at":"2026-05-18T12:32:33Z"},{"alias_kind":"pith_short_8","alias_value":"KHJN4KPN","created_at":"2026-05-18T12:32:33Z"}],"graph_snapshots":[{"event_id":"sha256:6f9fc27066f9385d5296b0431553bca3d8fb991a4ee4b1fc836eea168cc806be","target":"graph","created_at":"2026-05-18T00:06:27Z","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":"Contrast is a crucial factor in visual information processing. It is desired for a visual system - irrespective of being biological or artificial - to \"perceive\" the world robustly under large potential changes in illumination. In this work, we studied the responses of deep neural networks (DNN) to identical images at different levels of contrast. We analysed the activation of kernels in the convolutional layers of eight prominent networks with distinct architectures (e.g. VGG and Inception). The results of our experiments indicate that those networks with a higher tolerance to alteration of c","authors_text":"Arash Akbarinia, Karl R. Gegenfurtner","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2018-09-05T11:17:09Z","title":"How is Contrast Encoded in Deep Neural Networks?"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1809.01438","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:dec10fac9d5aea3c05eb8dac949ea85f78631cd3e30613bcd91040868129b449","target":"record","created_at":"2026-05-18T00:06:27Z","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":"0e530d328d9905212dcd602353d0776fdd16f1c245f03ca5a62588a3d94275b9","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2018-09-05T11:17:09Z","title_canon_sha256":"4827658faa92ae126f7b770435185df6a04b32d6b56400176f0c5c793ec8bb90"},"schema_version":"1.0","source":{"id":"1809.01438","kind":"arxiv","version":1}},"canonical_sha256":"51d2de29ed613fd73f350dd14b378be397cdf5b80e769cc93edb2716e14b6a3a","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"51d2de29ed613fd73f350dd14b378be397cdf5b80e769cc93edb2716e14b6a3a","first_computed_at":"2026-05-18T00:06:27.658897Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:06:27.658897Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"bqoCkJ7FOJUyvF0ZiR8nOxH4ESpbDgvAN6TEQmg5q9MIv5U1+wi6Lyjd/SfvC5kFmtF2e1lsf8kkRbohWV/NAw==","signature_status":"signed_v1","signed_at":"2026-05-18T00:06:27.659415Z","signed_message":"canonical_sha256_bytes"},"source_id":"1809.01438","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:dec10fac9d5aea3c05eb8dac949ea85f78631cd3e30613bcd91040868129b449","sha256:6f9fc27066f9385d5296b0431553bca3d8fb991a4ee4b1fc836eea168cc806be"],"state_sha256":"7bd1e614c983a48b8a357b2d42d35421518e61e2633d2639e1b8e828b06f8589"}