Cross-Domain Integrations for Scientific Data Streams with Attention-Based Middleware

We study cross-domain integrations (JWST, ISS,
LHC, GPS) with heterogeneous external APIs. Using adapters
that model rate limits, latency jitter, schema drift, and outages,
we compare naive polling against an attention-based middleware
with token-bucket rate limiting, circuit breakers, RMS-style
normalization, caching (TTL), exponential backoff with jitter,
and hedged requests. We report success rate, latency (mean,
p95), freshness, retry overhead, rate-limit compliance, and outage
impact.