CaRE Scales Continual Learning to 300 Tasks

机器之心 · wechat · 2026-07-13

A research team from HKU proposed a new continual learning method, CaRE (Scalable Continual Learner with efficient Bi-Level Routing Mixture-of-Experts), aiming to scale continual learning to an ultra-long sequence of 300+ non-overlapping tasks.

The core method is BR-MoE: introducing a two-stage routing mechanism within each Transformer block. It first dynamically selects the most relevant task routes based on the entropy of class-aware perceptrons, then selects expert adapters within the corresponding routes for fusion, while retaining a shared expert updated via EMA. The team also constructed a new benchmark, OmniBenchmark-1K, selecting 1,000 classes and about 190,000 images from OmniBenchmark-V2, covering 21 visual domains to evaluate continual learning capabilities across 100 to 300 tasks. Experiments show that CaRE performs robustly across 100/151/200/301 task sequences and maintains a lead on shorter sequence benchmarks like ImageNet-R, ImageNet-A, and ObjectNet.

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