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ClarusC64/clinical-five-node-sepsis-cascade-boundary-v0.9

Clinical Five Node Sepsis Cascade Boundary (v0.9) What this repo does This dataset implements a Clarus v0.9 intervention-competition benchmark across a five-node sepsis cascade. Earlier dataset versions focused on detecting: deterioration regime transitions boundary proximity recovery feasibility v0.9 extends the ladder. The benchmark now evaluates whether a model can identify the correct rescue path when multiple interventions compete under narrowing rescue… See the full description on the dataset page: https://huggingface.co/datasets/ClarusC64/clinical-five-node-sepsis-cascade-boundary-v0.9.

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Clinical Five Node Sepsis Cascade Boundary (v0.9)

What this repo does

This dataset implements a Clarus v0.9 intervention-competition benchmark across a five-node sepsis cascade.

Earlier dataset versions focused on detecting:

  • —deterioration
  • —regime transitions
  • —boundary proximity
  • —recovery feasibility

v0.9 extends the ladder.

The benchmark now evaluates whether a model can identify the correct rescue path when multiple interventions compete under narrowing rescue windows.

This reflects real system decision geometry in cascading sepsis states.

In real systems:

  • —several plausible interventions may exist
  • —one intervention may have slightly higher structural leverage
  • —intervention rankings can change rapidly
  • —selecting the wrong path can waste the rescue window

v0.9 explicitly models intervention competition.

Core five-node cascade

The instability geometry is defined by five interacting variables.

Cascade VariableMeasurement SourcesTypical Indicators
infection_loadCulture burden, source severity, procalcitonin, imaging findingsSource present, PCT rising, abscess, infected line
physiologic_bufferHaemoglobin, albumin, reserve capacity, lactate clearanceHb low, albumin low, poor reserve, rising lactate
inflammatory_lagCRP trend, fever curve, WBC trajectoryCRP rising, fever > 38.5, WBC > 12
hemodynamic_couplingMAP drift, vasopressor need, capillary refill, shock burdenHypotension, rising pressor need, poor perfusion
organ_couplingCreatinine drift, bilirubin drift, ABG deterioration, urine outputAKI progression, bilirubin rising, oliguria, gas exchange worsening

These five variables define the local stability geometry of the sepsis cascade.

Example intervention competition scenario

A typical v0.9 row captures a situation where two or more rescue paths compete.

Example:

Primary intervention path

source_control_then_antibiotics_then_vasopressors

Secondary intervention path

fluids_then_vasopressors_then_source_control

Example signals

  • —interventionalignmentscore ≈ 0.82
  • —interventionleveragescore ≈ 0.79
  • —pathwaydivergencemargin ≈ 0.07
  • —interventioncompetitionratio ≈ 0.91
  • —rescuewindowwidth ≈ 0.24

Interpretation

  • —multiple plausible rescue paths exist
  • —the primary path has slightly stronger structural leverage
  • —the rescue window is narrowing
  • —selecting the wrong path risks losing recoverability

This geometry is exactly what the v0.9 benchmark tests.

Prediction target

Label column

label_sepsis_cascade_boundary_stabilization

Default rule

python
label = 1 if stabilization_success = 1 AND trajectory_shift < -0.10

Relaxed variant

label = 1 if stabilization_success = 1

Preferred v0.9 rule

label = 1 if stabilization_success = 1 \
AND trajectory_shift < -0.10 \
AND intervention_alignment_score >= 0.60

The v0.9 rule rewards correctly targeted rescue, not merely recovery.

Row structure

Each dataset row describes system geometry.

State variables

infection_load

physiologic_buffer

inflammatory_lag

hemodynamic_coupling

organ_coupling

Trajectory signals

drift_gradient

drift_velocity

drift_acceleration

Boundary signals

boundary_distance

secondary_boundary_distance

boundary_competition_ratio

Uncertainty signals

boundary_uncertainty

trajectory_uncertainty

intervention_uncertainty

Regime transition signals

regime_transition_score

transition_direction

regime_separation_margin

transition_uncertainty

transition_velocity

Intervention competition signals

intervention_leverage_score

intervention_alignment_score

rescue_window_width

pathway_divergence_margin

intervention_competition_ratio

primary_intervention_path

secondary_intervention_path

intervention_uncertainty

pathway_switch_velocity

Recovery signals

recovery_distance

recovery_gradient

return_feasibility

Perturbation signals

perturbation_radius

collapse_trigger

Delta signals

delta_infection_load

delta_physiologic_buffer

delta_inflammatory_lag

delta_hemodynamic_coupling

delta_organ_coupling

Outcome fields

trajectory_shift

minimal_intervention_path

stabilization_success

Label

label_sepsis_cascade_boundary_stabilization

Files
data/train.csv

Training rows including:

stabilization_success

label column

data/tester.csv

Evaluation rows excluding:

stabilization_success

label column

scorer.py

The scorer evaluates both classification accuracy and intervention reasoning.

Binary metrics

accuracy

precision

recall

f1

confusion_matrix

Primary v0.9 metrics

recall_correct_intervention_selection

false_effective_intervention_rate

Intervention competition diagnostics

primary_intervention_path_accuracy

secondary_intervention_path_accuracy

intervention_alignment_accuracy

high_uncertainty_intervention_miss_rate

rescue_window_miss_rate

intervention_competition_error

pathway_switch_misread_rate

benchmark_spec.json

Machine-readable dataset specification including:

schema

thresholds

signal groups

evaluation interface

Dataset construction

Dataset rows are generated in stages.

Stage 1 — baseline cascade state

Five-node variables are sampled to represent plausible sepsis cascade states.

Stage 2 — trajectory dynamics

Drift signals describe movement toward or away from instability.

Stage 3 — boundary and regime detection

Boundary and transition signals describe proximity to instability basins across the cascade.

Stage 4 — intervention competition modelling

Multiple intervention paths are generated.

For each candidate path:

intervention_alignment_score measures regime compatibility

intervention_leverage_score estimates trajectory impact

pathway_divergence_margin measures separation between paths

intervention_competition_ratio captures relative leverage

rescue_window_width represents remaining recoverability

The best path becomes:

primary_intervention_path

The second-best becomes:

secondary_intervention_path

Dataset limitations

This dataset models structural intervention geometry, not detailed intervention pharmacology.

Limitations include:

intervention_alignment_score represents structural compatibility rather than exact treatment efficacy

rescue_window_width represents geometric recoverability rather than clock time

intervention paths represent simplified bundles of actions

cascade coupling is structural and does not capture every bedside timing dependency

These abstractions allow intervention competition geometry to generalize across domains.

Intended use

This dataset is intended for:

research on intervention selection under instability

evaluating regime-aware reasoning systems

testing models under narrowing rescue windows

benchmarking control-style decision models

studying cascade-aware action selection in sepsis

This dataset is not intended for:

clinical decision support in patient care

treatment recommendation systems

medical device deployment

regulatory evaluation

It is a research benchmark.

Clarus ladder context

Clarus datasets follow an instability-geometry ladder.

v0.1 cascade detection
v0.2 trajectory awareness
v0.3 cascade forecasting
v0.4 boundary discovery
v0.5 recovery geometry
v0.6 intervention reasoning
v0.7 uncertainty-aware intervention
v0.8 regime transition geometry
v0.9 intervention competition geometry

v0.9 marks the transition toward control-layer reasoning benchmarks.

Structural note

Clarus benchmarks represent instability geometry directly.

This dataset frames collapse as competition between:

failure pressure

intervention leverage

rescue window narrowing

In a five-node cascade this produces a richer control problem than a simple classifier.

Production deployment

This benchmark structure helps models distinguish between:

a plausible intervention

the best intervention

a nearly tied but weaker intervention

an intervention that becomes obsolete as the rescue window closes

This geometry appears in many domains including:

sepsis deterioration monitoring

ICU escalation logic

infrastructure failure mitigation

supply chain disruption recovery

AI system stabilization protocols

Enterprise and research collaboration

The v0.9 intervention competition structure generalizes across domains where multiple rescue paths compete under instability pressure.

Possible extensions include:

septic shock escalation monitoring

respiratory deterioration modelling

multiorgan cascade control

infrastructure recovery planning

financial crisis intervention sequencing

AI system resilience benchmarking