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(Almost) Free Modality Stitching of Foundation Models

Created by
  • Haebom

Author

Jaisidh Singh, Diganta Misra, Boris Knyazev, Antonio Orvieto

Outline

This paper points out the limitations of the existing method of building a multi-modal model by connecting various pre-trained single-modal models, and proposes a new method, Hypernetwork Model Alignment (Hyma), to solve this problem. While the existing method requires a lot of computational cost for selecting a single-modal model and training a connection module, Hyma improves efficiency by simultaneously learning the optimal combination of single-modal models and connection modules by utilizing hypernetworks. Hyma jointly learns connection modules for N x M combinations of single-modal models, thereby drastically reducing the cost of searching for the optimal model combination.

Takeaways, Limitations

Takeaways:
We demonstrate that hypernetworks can be used to dramatically reduce the computational cost of building multi-modal models.
We present a novel method to efficiently find the optimal single-mode model combination.
Achieves grid search-like performance on various multi-modal benchmarks.
Limitations:
Further studies are needed to determine how well the proposed Hyma's performance generalizes to various multi-modal tasks and datasets.
Further research is needed on optimization strategies for designing and training hypernetworks.
As the size of the hypernetwork grows, there is a potential for increased consumption of memory and computational resources.
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