{"schema_version":1,"experiment_id":"eoa_inverse_innovation_exp03_full320_20260801","cell_id":"negative_space_design__marine_science","trajectory_id":"R","attempt_index":0,"archetype_slug":"negative_space_design","domain_slug":"marine_science","decision":"CANDIDATE","problem_id":"co_located_active_acoustic_crosstalk","causal_lever_id":"protected_all_source_acoustic_quiet_windows","proposal":{"problem":"On multi-instrument marine observatories or research platforms, independently scheduled echosounders, ADCPs, and other active acoustic instruments can leave few intervals free of self-generated sound. Overlap, transducer ringing, and recovery periods may contaminate passive recordings or obscure weak returns, while the absence of a clean ambient reference makes contamination harder to diagnose.","actors_substrate":["marine scientists and instrument operators","co-located active acoustic instruments","passive acoustic receivers and active-sensor data streams","marine fauna exposed to transmissions","data users relying on detections or derived estimates"],"observable_state":"Measure the fraction of passive frames and designated weak-signal observations overlapping any platform transmission or recovery interval, cross-talk flags per instrument, usable ambient-reference duration, detection performance on held-out recorded signals injected during analysis, and active-sampling coverage.","consequence":"INFERENCE: Self-generated acoustic occupation can reduce usable observations and make weak biological or environmental signals harder to distinguish from platform artifacts, potentially biasing detections or derived estimates.","affected_objective":"Increase interpretable acoustic observations and clean ambient-reference coverage without unacceptable loss of active-sampling coverage or operational safety.","structural_mapping":[{"archetype_element":"Competing elements crowd the field","domain_realization":"Multiple platform emitters and their recovery tails occupy overlapping acoustic time-frequency regions needed by receivers.","claim_kind":"INFERENCE"},{"archetype_element":"Protected absence","domain_realization":"Scheduled intervals in which all nonessential platform acoustic transmitters remain off, including bounded guard intervals.","claim_kind":"HYPOTHESIS"},{"archetype_element":"Positive form clarified by absence","domain_realization":"Passive observations, ambient baselines, and weak returns become the measurements framed by the quiet interval.","claim_kind":"HYPOTHESIS"},{"archetype_element":"Deliberate absence must differ from failure","domain_realization":"Telemetry marks planned no-transmit periods separately from missing data, receiver failure, permission blocks, and communication loss.","claim_kind":"INFERENCE"},{"archetype_element":"Reintroduction after rest","domain_realization":"Active sampling resumes automatically at the scheduled boundary or an authorized safety trigger.","claim_kind":"HYPOTHESIS"}],"component_map":[{"component":"Omission Candidate","status":"adapted","domain_realization":"Identify redundant, low-priority, or deferrable transmissions within each observation block."},{"component":"Protected Empty Space","status":"adapted","domain_realization":"Reserve recurring all-source acoustic quiet windows."},{"component":"Positive Form Relationship","status":"direct","domain_realization":"Tie each quiet window to passive observation, receiver recovery, or ambient-reference collection."},{"component":"Attention Competition Map","status":"adapted","domain_realization":"Map each emitter's timing, band, level proxy, receiver overlap, ringing, and scientific priority."},{"component":"Absence Boundary","status":"adapted","domain_realization":"Specify start, stop, participating emitters, guard intervals, and exemptions."},{"component":"Clarity or Effect Test","status":"adapted","domain_realization":"Compare usable-frame fraction, artifact rate, detection performance, and retained active coverage."},{"component":"Rest and Pacing Zone","status":"adapted","domain_realization":"Bundle permitted active measurements into bursts separated by receiver-facing quiet periods."},{"component":"Meaning-of-Absence Check","status":"direct","domain_realization":"Encode planned silence distinctly from no data, malfunction, or external interference."},{"component":"Reintroduction Trigger","status":"adapted","domain_realization":"Resume transmitters at a scheduled boundary or authorized safety override."},{"component":"Accessibility and Recoverability Guardrail","status":"adapted","domain_realization":"Keep status visible, preserve raw data and schedules, exempt critical systems, and allow immediate rollback."},{"component":"Context Preservation Frame","status":"adapted","domain_realization":"Retain environmental, platform-state, clock, receiver-gain, and instrument-health metadata around quiet windows."}],"mechanism_dispositions":[{"slug":"architectural_void","disposition":"considered_rejected","contribution_type":"NONE","adaptation_or_rejection":"A spatial void metaphor is unnecessary because the operative absence is temporal and acoustic.","counterfactual_removal":"No causal or viability change."},{"slug":"blank_or_rest_frame","disposition":"selected_load_bearing","contribution_type":"CORE_CAUSAL","adaptation_or_rejection":"Adapted as an intentional all-source quiet interval with an explicit exit.","counterfactual_removal":"Without a genuinely quiet interval, the platform cannot collect a self-noise-free reference."},{"slug":"editorial_cut","disposition":"selected_supporting","contribution_type":"OPERATIONAL","adaptation_or_rejection":"Ranks transmissions for deferral while preserving essential sampling and a recoverable schedule.","counterfactual_removal":"Quiet time may be created by indiscriminate cuts that invalidate scientific coverage."},{"slug":"empty_state_design","disposition":"selected_supporting","contribution_type":"SAFETY_GUARDRAIL","adaptation_or_rejection":"Telemetry labels intentional silence and distinguishes it from faults or missing data.","counterfactual_removal":"Operators may treat silence as failure or overlook a real failure, hard-gating trustworthy operation."},{"slug":"facilitation_silence","disposition":"considered_rejected","contribution_type":"NONE","adaptation_or_rejection":"Group power and conversational participation are not causal features of instrument cross-talk.","counterfactual_removal":"No change."},{"slug":"focus_mode_or_control_hiding","disposition":"selected_supporting","contribution_type":"SAFETY_GUARDRAIL","adaptation_or_rejection":"Adapted to suspend only noncritical emitters, guarantee reactivation, and preserve immediate overrides.","counterfactual_removal":"A quiet-window controller could strand instruments off or suppress safety-critical functions."},{"slug":"margin_and_gutter_system","disposition":"selected_load_bearing","contribution_type":"CORE_CAUSAL","adaptation_or_rejection":"Adapted as standardized pre/post-transmission guard intervals protecting against recovery tails and clock error.","counterfactual_removal":"Nominally silent windows may remain contaminated at their edges."},{"slug":"negative_space_logo","disposition":"incompatible","contribution_type":"NONE","adaptation_or_rejection":"Figure-ground symbolism has no relevant causal relation to acoustic observation quality.","counterfactual_removal":"No change."},{"slug":"pause_in_speech","disposition":"considered_rejected","contribution_type":"NONE","adaptation_or_rejection":"Live rhetorical calibration does not provide instrument coordination or safety control.","counterfactual_removal":"No change."},{"slug":"sparse_layout","disposition":"considered_rejected","contribution_type":"NONE","adaptation_or_rejection":"Simply reducing instrument count could sacrifice required measurements; the target is bounded shared silence.","counterfactual_removal":"No change to the proposed causal chain."},{"slug":"whitespace","disposition":"considered_rejected","contribution_type":"NONE","adaptation_or_rejection":"Pairwise time-frequency separation may reduce collisions but need not create an all-source ambient-reference interval.","counterfactual_removal":"The selected quiet-window and guard-band mechanisms remain sufficient."}],"causal_chain":["Independent or continuous transmissions occupy receiver-relevant acoustic intervals.","An attention-competition map identifies which emissions and recovery tails contaminate which observations.","Nonessential transmissions are bundled or deferred while required context and total test-block effort are preserved.","Bounded all-source quiet windows and guard intervals create deliberate acoustic absence.","Receivers collect marked ambient-reference and passive-observation segments during that absence.","Comparison with ordinary scheduling tests whether interpretability improves without unacceptable coverage or safety loss."],"baseline":"Each instrument follows its own duty cycle or is manually staggered; analysts flag or filter cross-talk after collection, and some platform emitter may remain active throughout.","nearest_rival":"Conventional synchronization or time/frequency-division scheduling that prevents instrument-to-instrument collisions but does not reserve intervals when every nonessential emitter is silent.","authority_safety":{"affected_parties":["instrument operators and vessel crew","scientists and downstream data users","marine fauna near the platform","communities or agencies relying on monitoring results"],"decision_authority":"The responsible chief scientist or observatory operator, with vessel master or safety officer retaining override authority and instrument owners approving sampling constraints.","authorized_first_step":"Run a reversible single-platform crossover pilot across twelve matched two-hour blocks, alternating baseline scheduling with bundled transmissions plus quiet windows while holding ping count per block approximately constant; use existing passive recordings and offline signal injection for detection scoring.","excluded_actions":["Disabling collision-avoidance, navigation, emergency, or legally required acoustic systems","Adding experimental sound solely to create a test signal","Permanently deleting raw data or original schedules","Extending the intervention beyond the participating platform without authorization"],"halt_rollback":"Immediately restore the prior schedules if a critical alert occurs, synchronization becomes unreliable, instrument health degrades, or predefined essential-data coverage falls below the approved threshold; retain all logs for rollback and diagnosis."}},"negative_tests":{"strongest_counterevidence":"Existing synchronization and post-processing may already remove practically important cross-talk, while continuous active sampling may be necessary to observe short-lived events; bundling could therefore lose more information than quiet intervals recover.","analogy_break":"Ocean silence is not empty: external vessels, animals, weather, and flow remain audible. Deliberate platform silence cannot remove external noise or reconstruct active observations skipped during the window.","failure_condition":"The schedule cannot produce verified all-source quiet intervals because critical emitters cannot pause, clocks drift beyond guard bands, or essential temporal coverage cannot tolerate bundling.","problem_falsifier":"Synchronized logs show platform transmissions and recovery tails rarely overlap receiver-relevant observations, adequate ambient-reference segments already exist, and removing flagged overlaps does not materially change target measurements.","intervention_falsifier":"Compared with baseline and conventional staggering, quiet-window blocks do not improve usable-frame fraction, artifact rate, or held-out detection performance, or they cause active-coverage loss beyond the preapproved bound.","risks":["Missed transient events during bundled or deferred active sampling","False confidence when external noise dominates the quiet window","Clock or metadata errors mislabeling contaminated intervals as quiet","Suppression or delayed restoration of an operationally critical emitter","Sampling-regime changes confounding scientific comparisons","Quiet schedules later expanding beyond their tested scope"]},"null_rationale":null,"classification":{"candidate_kind":"MECHANISM_COMPOSITION","prior_art_status":"UNSEARCHED","evidence_maturity":"HYPOTHESIS"},"revision_change_log":{"revision_kind":"ORIGINAL","prior_problem_id":null,"prior_causal_lever_id":null,"problem_changed":false,"causal_lever_changed":false,"conceptual_changes":[],"operational_changes":[],"repairs_addressed":[]},"confidence":0.82,"generator_notes":"Closed-book structural inference from the supplied packet; empirical effectiveness and field prevalence remain unverified."}