AXIOM BOINC SESSION RESULTS Session timestamp: 2026-03-04 00:40 CET (validation) / 2026-03-04 deployment cycle Session label(s): s0304_part1_validate_b, s0304_part2_deploy_b RESULTS REVIEWED AND CREDIT AWARDED - Reviewed completed uncredited exp results: 134 - Payload summary: 110 science payloads, 24 explicit error payloads, 0 missing JSON, 0 parse errors. - Credit policy applied: elapsed-time tier for science payloads; reduced-tier compensation for error payloads. - Total incremental credit awarded: +1007 (safety cap check PASS, <=10000) - Database updates: 134 result rows, 6 user rows, 15 host rows. - Per-user awards this session: - ChelseaOilman: +612 - WTBroughton: +234 - Steve Dodd: +95 - Armin Gips: +36 - zombie67 [MM]: +18 - marmot: +12 STUCK/BROKEN TASK CLEANUP - Broken stale line `exp_regtimuniv_gpu_g1%` cleaned: 19 unsent tasks aborted (server_state=5, outcome=5). - Dead-host stuck cleanup (>12h running and >6h host silence): 0 tasks. - Hard-ceiling cleanup (>48h running): 0 tasks. NEW EXPERIMENTS DESIGNED AND DEPLOYED - New experiment script added: `wd_clipping_interaction.py` (CPU, numpy-only, run-duration compliant). - Conditions tested: baseline, late_wd, clip_only, clip_late_wd, always_wd_clip. - Primary metric: interaction_delta = (late_wd_gain_with_clip - late_wd_gain_no_clip). NOVELTY CHECK DOCUMENTATION - Literature/query sweep performed for: - weight decay x gradient clipping interaction - delayed WD schedule prior work (including arXiv:1905.08694) - adaptive gradient clipping prior work (including arXiv:1905.11881) - weight decay schedule + clipping combinations - Novelty conclusion: prior work treats clipping and decay mostly separately; no direct replicated controlled test found for late-WD timing x clipping interaction under compositional covariate shift. - Mechanistic hypothesis targeted: late WD may act via suppression of rare high-norm updates that clipping could partially substitute. DEPLOYMENT SUMMARY (PART 2) - CPU targeted pass: 2,181 WUs - CPU top-up pass: 2,153 WUs - CPU new-experiment injection (`wd_clipping_interaction`): 234 WUs - CPU total this session: 4,568 WUs - GPU targeted pass: 278 WUs - GPU top-up pass: 276 WUs - GPU total this session: 554 WUs - GPU hosts with idle capacity found: 74 KEY SCIENTIFIC FINDINGS 1. `wd_imbalance_interaction` remained strongly positive in this increment (+40 runs): mean interaction_excess = +0.0949 and mean minority-recall lift (late_wd_class_balanced - CE) = +0.2053. 2. `wd_labelsmooth_interaction` (+9 runs) supported interaction in 100.0% of runs, with attenuation predicted in 66.7%; mean additivity residual = +0.0020 (near-additive at batch level). 3. `wd_anisotropy_trigger_gpu` (+2 GPU runs) stayed near parity with fixed-late WD: adaptive_minus_fixed mean = +0.0005 with stable trigger epoch mean = 24.0. 4. `wd_timing_depth` (+2 runs) was mixed in this increment: inverse-critical-period all-depth flag true in 50.0% and depth-vs-late-effectiveness correlation mean = -0.0286; more replication required. 5. Confirmed program-level status remains consistent: inverse critical period behavior is established; current priority stays on interaction/mechanism tests that can falsify causal timing hypotheses. OPERATIONS NOTES - Website counters updated during validation: credited_count advanced by +134; total results counter synchronized to live success maximum. - No new experiment-script bug requiring immediate patching was identified during this validation batch.