Vaccine Scheduler

IEEE Published

CPU-scheduling-inspired vaccine prioritization with aging mechanism.

Priority SchedulingAging AlgorithmFairnessResearch

Priority Score Formula

Priority = w₁×medical + w₂×occupational + w₃×age + w₄×social + aging_bonus

Multi-factor scoring with dynamic aging to prevent starvation

Medical Risk

0.35

Occupational Risk

0.30

Age Factor

0.25

Social Vulnerability

0.10

Priority Queue (Live)

Healthcare, 7285

Retired, 6878

Teacher, 4572

Engineer, 5565

General, 32+aging (45)

Aging mechanism prevents starvation — priority increases over time

Starvation Prevention

Aging Mechanism

Borrowed from OS scheduling: lower-priority individuals gradually gain priority over time.

aging_bonus = min(days_waiting × 0.05, 15)

Cap at 15 points — ensures everyone eventually gets vaccinated while maintaining priority for high-risk groups.

FCFS vs Priority-Based

First-Come, First-Served (FCFS)

Simple, appears fair at surface level

Creates digital divide — favors those with internet access and tech literacy

Priority-Based with AgingProposed

Prioritizes high-risk populations, prevents indefinite waiting

More complex to explain, requires careful weight calibration

System Architecture

Priority Scoring

Multi-factor composite scores

Queue Management

Sorted queues with aging

Capacity Optimizer

Center allocation balancing

Slot Allocation

Time-based assignment

Notification

SMS/Email confirmations

Fairness Auditor

Equity metrics tracking

Priority Factors

0.05

Daily Aging Rate

Max Aging Bonus

IEEE

Published

"The aging mechanism from CPU scheduling translates beautifully to real-world queues. Without it, lower-priority citizens could wait indefinitely, undermining public trust in the vaccination program."