A single transformer trains nested model sizes in one pass

ShellElastic uses structured weight sharing and width-aware parameter scaling to train multiple transformer sizes with a fixed computation graph.

Big Tech
Can Jin · Yan Kang · Yifan Gong · Chongjian Ge · Mingze Xu · Yuanjun Xiong · +2 more

Rutgers University · Adobe Research

Research Digest··3 min read
Jin and colleagues introduce an elastic transformer whose smaller sub-networks are exact prefixes of the widest model’s hidden states.

The authors divide each transformer’s residual stream into a dense core and ordered groups called shells.

Why this paper

From Adobe Research and Rutgers University

In one line

ShellElastic trains nested transformer widths in one fixed-workload pass, while μ-Elastic preserves maximal updates and transfers hyperparameters across widths and supernet sizes.

What we could check

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  • ·No stated limitations found
  • ·No benchmark numbers found

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Research Digest

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