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Existing benchmarks for user understanding often rely on simulated users or model-generated behavior, even though recent work cautions that model-based simulations can diverge systematically from human behavior. We introduce \\textsc{BehaviorBench}, a benchmark for evaluating personalized decision modeling from real-world behavioral traces. \\textsc{BehaviorBench} reconstructs wallet-level decision histories from observed public prediction-market and on-chain records, and organizes them into two complementary task layers: \\emph{Belief prediction}, which predicts a user's final revealed stance and confidence in a market, and \\emph{Trade prediction}, which predicts the direction and amount of individual transactions. Across 2,000 evaluation wallets, the benchmark contains 141,445 Belief instances and 1,485,972 T","title":"BehaviorBench: Modeling Real-World User Decisions from Behavioral Traces","url":"https://arxiv.org/abs/2606.02798","vendor":"arxiv_cs_ai"},"summary":"arXiv:2606.02798v1 Announce Type: new \nAbstract: Many decision-support settings require systems that adapt to individual users, but evaluation data for this problem remain limited. Existing benchmarks for user understanding often rely on simulated users or model-generated behavior, even though recent work cautions that model-based simulations can diverge systematically from human behavior. We introduce \\textsc{BehaviorBench}, a benchmark for evaluating personalized decision modeling from real-world behavioral traces. \\textsc{BehaviorBench} reconstructs wallet-level decision histories from observed public prediction-market and on-chain records, and organizes them into two complementary task layers: \\emph{Belief prediction}, which predicts a user's final revealed stance and confidence in a market, and \\emph{Trade prediction}, which predicts the direction and amount of individual transactions. Across 2,000 evaluation wallets, the benchmark contains 141,445 Belief instances and 1,485,972 T","title":"BehaviorBench: Modeling Real-World User Decisions from Behavioral Traces","vendor":"arxiv_cs_ai"},"confidence":{"method":"deterministic"},"decision":"POSITIVE","issued_at":"2026-06-03T04:43:57Z","notes":"Spider vendor_press (news) news.vendor_press.v1","object":{"captured_by":"crovia.spider.vendor_press","primary_source_url":"https://arxiv.org/abs/2606.02798"},"predecessors":[],"schema":"crovia.axiom.v1","signature":"ed25519:b20bfa3d9f2c7de7e1b42359ab58debd4e197db9b3d38c9eee17d71f9aeb54717d73b6d9825f7b4787471cf4e1e4160473faae19760c79d5234346c3fd878f08","signer":"crovia.substrate","subject":{"observed_at":"2026-06-03T04:43:57Z","source_collector":"spider:vendor_press","target_id":"https://arxiv.org/abs/2606.02798"},"tsa":{"authority":"crovia.substrate.bootstrap","rfc3161_token":"{\"kind\":\"crovia.bootstrap.tsa\",\"source_jsonl\":\"/opt/crovia/spider/data/news/vendor_press_v1.jsonl\",\"source_seal_merkle_root\":\"spider_vendor_press_v1\",\"upgrade_path\":\"Sessione H \\u2014 OpenTimestamps weekly anchor\"}"},"zk_mode":"clear","zk_proof":null},"ledger":{"leaf_hash":"d4a59a0840a86a006f829b9c8c31ecbfb1397907d507d9b7c1c526bc953e2a7a","leaf_index":209013,"ledger_path":"/opt/crovia/substrate/axiom_ledger.jsonl"},"merkle_proof":{"hash_alg":"sha256","leaf_prefix":"0x00","node_prefix":"0x01","odd_leaf_rule":"duplicate_last","path":[{"sibling":"089e924551046d59e5c0f1b3e8f8144df9781e2c9b3140587255e6f49c98d877","side":"left"},{"sibling":"58a7f43c6fd05d5bbb4a7870ee53c5160b6ba99b03c401cc0c71b4af27603447","side":"right"},{"sibling":"3965d6ad1212fd5ea15c8820aae76b057dba1aa77df6377592c8da98e845ec13","side":"left"},{"sibling":"0b791339dc44482ce0e83f8cc469d6393aac2a5849d05a78b909a051d5641db3","side":"right"},{"sibling":"485ad6aa17c489e9fb81f9fb4fcb95a35f70d04ef7ecd8720b34e1f83fb79c5d","side":"left"},{"sibling":"18366d9275806bb91ac6bb4cbb4dda96b92cc523c27fbe947d427832763f3648","side":"left"},{"sibling":"33c665b9c2315f9fdc918094450aad212c4dc3f9a29d2d3e1a8df3c6cf383cb3","side":"left"},{"sibling":"cd419a692ecf4e71ed4feab6ad60793674ab212c75c32c49b02cb97b77195d92","side":"right"},{"sibling":"9924ce3405008f0c3a3b79e9066c574929b10c2965e0cc083262d3ac8aae2cb3","side":"right"},{"sibling":"2abcec6d14b256f82b270a3141886de6129141dec525543607b760f02588a877","side":"right"},{"sibling":"2b6b45743f97ac502854e489ac38a3366f8ae7ede58a2728b45daadbf29e9d03","side":"right"},{"sibling":"a81babbd79ea0da9e030dd7f43bffb6519d214317decd50727bea4e78189d970","side":"right"},{"sibling":"2dca509b3eb767a47cf215d4315f230ce9103a76264412008ae23a349b519ef1","side":"left"},{"sibling":"24d1bb4b13e0e46131b27b70a48e65fcf4e2e14b95e3bb83ade821e9df530f6b","side":"left"},{"sibling":"8d3baa674a45fd8bc6d3e8d25298f4bec86c72fa8259d576c330d12955c7b4f7","side":"right"},{"sibling":"e32819d1eff909db08066d1703f2db3f091cddac19378b2c0c625ab11e3fdbc0","side":"right"},{"sibling":"c300cf0154c136afc09b1702a0be98f4ba5b6dc5cf57e8cc714ec1eaf4196eff","side":"left"},{"sibling":"d841ad93efda0869e5eb97678f348f03f5caab4353e05ff4bf18f47fb945b822","side":"left"}]},"schema":"crovia.axiom_proof.v1","seal":{"first_collector_run_id":"","first_receipt_hash":"","jsonl_path":"/opt/crovia/substrate/axiom_ledger.jsonl","key_id":"430895f101d38164","last_collector_run_id":"","last_receipt_hash":"","leaf_count":209569,"merkle_root":"c852efc8ad7dfffc196c71380f79e6398bcaf566974cbae7c9950b0f600d5bc8","public_key_hex":"cf742e26f75669dc673cb5c0786a1ae23ae8ca19c347317192ce40c28a7ff25c","run_id":"hourly_json_retrofit_20260603T053701Z","schema":"crovia.seal.v1","seal_family_version":"crovia-seal-family/1","seal_kind":"substrate_batch","sealed_at":"2026-06-03T05:37:57Z","sig_algorithm":"ed25519","signature":"1ca417607effc813341721cfdade0a2d2d4ba96a90d361dbc3e864b6991b90abc326ec41d9ba3e7110cc04adb29d7b8d95abea7ff2ab8c591b2f864ed7270c03","signer_version":"1.1.0"},"trust_root":{"key_id":"430895f101d38164","public_key_hex":"cf742e26f75669dc673cb5c0786a1ae23ae8ca19c347317192ce40c28a7ff25c","signature_algorithm":"ed25519","url":"/registry/canon/TRUST_ROOT.md"},"verifier":{"spec":"/registry/canon/AXIOM_RECEIPT_v1.md","url":"/v/axm_bf806e8ab08afdf0aae65d4fe4f3949802ebec2533a9e81d3f063177ea951caf"}}