{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2017:IGQHVPGSGUGLHE2SJECLW4OVTD","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":"270ba39baf10cd0187bb67e93d1022330cba8601761c081b3bbe62a5ffdea8fe","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.AI","submitted_at":"2017-07-11T15:50:09Z","title_canon_sha256":"805ab295c5d14e46d3bdb1b3240ad95a44cf12337ba4ebc69bfde838bf0d6cb6"},"schema_version":"1.0","source":{"id":"1707.03336","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1707.03336","created_at":"2026-05-18T00:40:29Z"},{"alias_kind":"arxiv_version","alias_value":"1707.03336v1","created_at":"2026-05-18T00:40:29Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1707.03336","created_at":"2026-05-18T00:40:29Z"},{"alias_kind":"pith_short_12","alias_value":"IGQHVPGSGUGL","created_at":"2026-05-18T12:31:21Z"},{"alias_kind":"pith_short_16","alias_value":"IGQHVPGSGUGLHE2S","created_at":"2026-05-18T12:31:21Z"},{"alias_kind":"pith_short_8","alias_value":"IGQHVPGS","created_at":"2026-05-18T12:31:21Z"}],"graph_snapshots":[{"event_id":"sha256:b0202608bc10f39600fbeec2cc69c3d064adfecafd37bd83fa6dddf7816e4c76","target":"graph","created_at":"2026-05-18T00:40:29Z","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":"We propose and evaluate a new technique for learning hybrid automata automatically by observing the runtime behavior of a dynamical system. Working from a sequence of continuous state values and predicates about the environment, CHARDA recovers the distinct dynamic modes, learns a model for each mode from a given set of templates, and postulates causal guard conditions which trigger transitions between modes. Our main contribution is the use of information-theoretic measures (1)~as a cost function for data segmentation and model selection to penalize over-fitting and (2)~to determine the likel","authors_text":"Adam Summerville, Joseph Osborn, Michael Mateas","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.AI","submitted_at":"2017-07-11T15:50:09Z","title":"CHARDA: Causal Hybrid Automata Recovery via Dynamic Analysis"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1707.03336","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:b77bf443231d4db0eb69009eb77e612d9a12f75f7805fbb9a33b1fc9afd76a43","target":"record","created_at":"2026-05-18T00:40:29Z","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":"270ba39baf10cd0187bb67e93d1022330cba8601761c081b3bbe62a5ffdea8fe","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.AI","submitted_at":"2017-07-11T15:50:09Z","title_canon_sha256":"805ab295c5d14e46d3bdb1b3240ad95a44cf12337ba4ebc69bfde838bf0d6cb6"},"schema_version":"1.0","source":{"id":"1707.03336","kind":"arxiv","version":1}},"canonical_sha256":"41a07abcd2350cb393524904bb71d598e61d61872309ae05f2c4cc8327344f9f","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"41a07abcd2350cb393524904bb71d598e61d61872309ae05f2c4cc8327344f9f","first_computed_at":"2026-05-18T00:40:29.300292Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:40:29.300292Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"JggTrZktvnCU0QTIpOrFshURu2f1hFSmbI02nL5VmH+bZvmF19L/VNPYbVpkjMp/3pRBzy3xbWnhq4CSMHZECw==","signature_status":"signed_v1","signed_at":"2026-05-18T00:40:29.300858Z","signed_message":"canonical_sha256_bytes"},"source_id":"1707.03336","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:b77bf443231d4db0eb69009eb77e612d9a12f75f7805fbb9a33b1fc9afd76a43","sha256:b0202608bc10f39600fbeec2cc69c3d064adfecafd37bd83fa6dddf7816e4c76"],"state_sha256":"ef1ec94a68e83720f33a1caf6f49f214ab0254226eddfdb944adb4b2688bbfb9"}