seq-JEPA: Autoregressive Predictive Learning of Invariant-Equivariant World Models
TLDR
seq-JEPA learns separate invariant and equivariant representations via autoregressive predictive learning of world models from sequences of views and actions.
Reasoning
The paper introduces a novel architectural inductive bias to resolve the invariance-equivariance trade-off in SSL, which is a strength. However, the abstract is cut off, limiting full assessment of empirical results and potential limitations such as domain generality.
Read-first score
Read-first score 47, weighted from topical fit, citation, graph, method, reproducibility, and recency signals. Original total remains 34.
Field roles
Rank sensitivity
Stability: volatile; rank range: 421.
Keyword Scores
Deep Analysis
Innovations
- Resolves the invariance-equivariance trade-off in joint-embedding SSL without relying on dual predictors or loss terms
- Introduces architectural inductive biases to learn separate representations for invariance and equivariance
- Processes sequences of views with action embeddings through a transformer encoder for autoregressive predictive learning
- Conditions the predictor head on upcoming actions to predict next observation representations
Methodology
seq-JEPA processes short sequences of different views of inputs, where each view is concatenated with an embedding of the relative transformation (action) that produces the next observation. These view-action pairs are passed through a transformer encoder to output an aggregate representation, and a predictor head conditions this aggregate representation on the upcoming action to predict the representation of the next observation. The model is trained via autoregressive predictive learning and evaluated on downstream tasks requiring invariance (e.g., classification) and equivariance (e.g., path integration).
Key Results
seq-JEPA achieves strong performance on both invariance- and equivariance-demanding downstream tasks without sacrificing one for the other, and excels at tasks requiring sequence aggregation such as path integration across actions and predictive learning across eye movements.