# Network-based HIV intervention planning

HIV contact networks are prohibitively expensive to collect at scale, while peer referral networks can be gathered digitally but deviate from the true contact structure because referrals follow non-risk social ties and each participant accepts only one referral. R2C-Agent treats the referral process as incremental corruption of the contact network and learns to reverse it, then plans interventions over sampled contact networks. On real ICPSR HIV network data, its total regret is 54.9% lower on intensive treatment and 28.8% lower on targeted PrEP than the best baselines.

HIV contact networks are prohibitively expensive to collect at scale, while peer referral networks can be gathered digitally but deviate from the true contact structure because referrals follow non-risk social ties and each participant accepts only one referral. R2C-Agent treats the referral process as incremental corruption of the contact network and learns to reverse it, then plans interventions over sampled contact networks. On real ICPSR HIV network data, its total regret is 54.9% lower on intensive treatment and 28.8% lower on targeted PrEP than the best baselines.