{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2015:SGAGQL37VQVA4Q4CUNFDPHH25F","short_pith_number":"pith:SGAGQL37","canonical_record":{"source":{"id":"1504.00284","kind":"arxiv","version":3},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.LG","submitted_at":"2015-04-01T16:39:26Z","cross_cats_sorted":["stat.ML"],"title_canon_sha256":"673155366480fc8c168a6f1bca98f48d22cca176d0d929d8d8c179fb28a2133e","abstract_canon_sha256":"2116ea2c32d14dad17ed591897becd58cbf4f651d714a74f1bf8095338b05b35"},"schema_version":"1.0"},"canonical_sha256":"9180682f7fac2a0e4382a34a379cfae960936f26f3678ca0f7f50ac7c73687f0","source":{"kind":"arxiv","id":"1504.00284","version":3},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1504.00284","created_at":"2026-05-18T01:23:58Z"},{"alias_kind":"arxiv_version","alias_value":"1504.00284v3","created_at":"2026-05-18T01:23:58Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1504.00284","created_at":"2026-05-18T01:23:58Z"},{"alias_kind":"pith_short_12","alias_value":"SGAGQL37VQVA","created_at":"2026-05-18T12:29:42Z"},{"alias_kind":"pith_short_16","alias_value":"SGAGQL37VQVA4Q4C","created_at":"2026-05-18T12:29:42Z"},{"alias_kind":"pith_short_8","alias_value":"SGAGQL37","created_at":"2026-05-18T12:29:42Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2015:SGAGQL37VQVA4Q4CUNFDPHH25F","target":"record","payload":{"canonical_record":{"source":{"id":"1504.00284","kind":"arxiv","version":3},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.LG","submitted_at":"2015-04-01T16:39:26Z","cross_cats_sorted":["stat.ML"],"title_canon_sha256":"673155366480fc8c168a6f1bca98f48d22cca176d0d929d8d8c179fb28a2133e","abstract_canon_sha256":"2116ea2c32d14dad17ed591897becd58cbf4f651d714a74f1bf8095338b05b35"},"schema_version":"1.0"},"canonical_sha256":"9180682f7fac2a0e4382a34a379cfae960936f26f3678ca0f7f50ac7c73687f0","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:23:58.479385Z","signature_b64":"9IdgZCvDNvjqj0Vr7nUvguINZpzZy+6XtxNbqxLeBp3f+umd94oZFqmX9lwcHIX2lLWwD+A4zAvsYnE221ITCw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"9180682f7fac2a0e4382a34a379cfae960936f26f3678ca0f7f50ac7c73687f0","last_reissued_at":"2026-05-18T01:23:58.478798Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:23:58.478798Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1504.00284","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":"2026-05-18T01:23:58Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"ala6R/5dgFRGj3GzEEnd+ksMPD0LWgQy8PFDN7fIvlPQotTCHjvxK1ODxLAtuaQPgV35nIy+g9tm08BwbB1lDw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-28T15:49:53.297835Z"},"content_sha256":"576b8d25976e7d810329269ec2d8773e0a1de5a6562a6c748bbe5bc0c8f669ed","schema_version":"1.0","event_id":"sha256:576b8d25976e7d810329269ec2d8773e0a1de5a6562a6c748bbe5bc0c8f669ed"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2015:SGAGQL37VQVA4Q4CUNFDPHH25F","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"A New Vision of Collaborative Active Learning","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["stat.ML"],"primary_cat":"cs.LG","authors_text":"Adrian Calma, Bernhard Sick, Mark Embrechts, Paul Lukowicz, Tobias Reitmaier","submitted_at":"2015-04-01T16:39:26Z","abstract_excerpt":"Active learning (AL) is a learning paradigm where an active learner has to train a model (e.g., a classifier) which is in principal trained in a supervised way, but in AL it has to be done by means of a data set with initially unlabeled samples. To get labels for these samples, the active learner has to ask an oracle (e.g., a human expert) for labels. The goal is to maximize the performance of the model and to minimize the number of queries at the same time. In this article, we first briefly discuss the state of the art and own, preliminary work in the field of AL. Then, we propose the concept"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1504.00284","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":"2026-05-18T01:23:58Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"/OppFiPL2ApJT6KnwBtyCXFydpVIyf9Y7JYY8nNR59QEh79dG5FmqyIJ/dV/tkZ9qHU1WokJNiq8Yx73rz5eDw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-28T15:49:53.298175Z"},"content_sha256":"af59427771a5ff6d8350774a493a235abc10d13da4577c29ae955722ec9db8d7","schema_version":"1.0","event_id":"sha256:af59427771a5ff6d8350774a493a235abc10d13da4577c29ae955722ec9db8d7"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/SGAGQL37VQVA4Q4CUNFDPHH25F/bundle.json","state_url":"https://pith.science/pith/SGAGQL37VQVA4Q4CUNFDPHH25F/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/SGAGQL37VQVA4Q4CUNFDPHH25F/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":"2026-06-28T15:49:53Z","links":{"resolver":"https://pith.science/pith/SGAGQL37VQVA4Q4CUNFDPHH25F","bundle":"https://pith.science/pith/SGAGQL37VQVA4Q4CUNFDPHH25F/bundle.json","state":"https://pith.science/pith/SGAGQL37VQVA4Q4CUNFDPHH25F/state.json","well_known_bundle":"https://pith.science/.well-known/pith/SGAGQL37VQVA4Q4CUNFDPHH25F/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2015:SGAGQL37VQVA4Q4CUNFDPHH25F","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":"2116ea2c32d14dad17ed591897becd58cbf4f651d714a74f1bf8095338b05b35","cross_cats_sorted":["stat.ML"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.LG","submitted_at":"2015-04-01T16:39:26Z","title_canon_sha256":"673155366480fc8c168a6f1bca98f48d22cca176d0d929d8d8c179fb28a2133e"},"schema_version":"1.0","source":{"id":"1504.00284","kind":"arxiv","version":3}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1504.00284","created_at":"2026-05-18T01:23:58Z"},{"alias_kind":"arxiv_version","alias_value":"1504.00284v3","created_at":"2026-05-18T01:23:58Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1504.00284","created_at":"2026-05-18T01:23:58Z"},{"alias_kind":"pith_short_12","alias_value":"SGAGQL37VQVA","created_at":"2026-05-18T12:29:42Z"},{"alias_kind":"pith_short_16","alias_value":"SGAGQL37VQVA4Q4C","created_at":"2026-05-18T12:29:42Z"},{"alias_kind":"pith_short_8","alias_value":"SGAGQL37","created_at":"2026-05-18T12:29:42Z"}],"graph_snapshots":[{"event_id":"sha256:af59427771a5ff6d8350774a493a235abc10d13da4577c29ae955722ec9db8d7","target":"graph","created_at":"2026-05-18T01:23:58Z","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":"Active learning (AL) is a learning paradigm where an active learner has to train a model (e.g., a classifier) which is in principal trained in a supervised way, but in AL it has to be done by means of a data set with initially unlabeled samples. To get labels for these samples, the active learner has to ask an oracle (e.g., a human expert) for labels. The goal is to maximize the performance of the model and to minimize the number of queries at the same time. In this article, we first briefly discuss the state of the art and own, preliminary work in the field of AL. Then, we propose the concept","authors_text":"Adrian Calma, Bernhard Sick, Mark Embrechts, Paul Lukowicz, Tobias Reitmaier","cross_cats":["stat.ML"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.LG","submitted_at":"2015-04-01T16:39:26Z","title":"A New Vision of Collaborative Active Learning"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1504.00284","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":"sha256:576b8d25976e7d810329269ec2d8773e0a1de5a6562a6c748bbe5bc0c8f669ed","target":"record","created_at":"2026-05-18T01:23:58Z","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":"2116ea2c32d14dad17ed591897becd58cbf4f651d714a74f1bf8095338b05b35","cross_cats_sorted":["stat.ML"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.LG","submitted_at":"2015-04-01T16:39:26Z","title_canon_sha256":"673155366480fc8c168a6f1bca98f48d22cca176d0d929d8d8c179fb28a2133e"},"schema_version":"1.0","source":{"id":"1504.00284","kind":"arxiv","version":3}},"canonical_sha256":"9180682f7fac2a0e4382a34a379cfae960936f26f3678ca0f7f50ac7c73687f0","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"9180682f7fac2a0e4382a34a379cfae960936f26f3678ca0f7f50ac7c73687f0","first_computed_at":"2026-05-18T01:23:58.478798Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:23:58.478798Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"9IdgZCvDNvjqj0Vr7nUvguINZpzZy+6XtxNbqxLeBp3f+umd94oZFqmX9lwcHIX2lLWwD+A4zAvsYnE221ITCw==","signature_status":"signed_v1","signed_at":"2026-05-18T01:23:58.479385Z","signed_message":"canonical_sha256_bytes"},"source_id":"1504.00284","source_kind":"arxiv","source_version":3}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:576b8d25976e7d810329269ec2d8773e0a1de5a6562a6c748bbe5bc0c8f669ed","sha256:af59427771a5ff6d8350774a493a235abc10d13da4577c29ae955722ec9db8d7"],"state_sha256":"68b84b94907d41406a5d1e6b7090ae4e3b0cf1c68ac4d455638798690ba3c488"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Kq/x7uBgXaBGcH1fqlTxGPfDz0l+kkSdZxb5I3OPTWLaL4s+bR6UFaACwcneXGNYwJx+W4wh4GNzKlFCaos9BQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-28T15:49:53.300082Z","bundle_sha256":"0cb9b4a96e7a5d9ceb8c94ab280e0aeb889fdde15e7c179edddf084a6028db9c"}}