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Training and Generating Neural Networks in Compressed Weight Space

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arxiv 2112.15545 v1 pith:O3SM6VB7 submitted 2021-12-31 cs.LG cs.CL

classification cs.LGcs.CL
keywords neuralweightmatricescompressednetsnetworksrecurrentapproaches
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The inputs and/or outputs of some neural nets are weight matrices of other neural nets. Indirect encodings or end-to-end compression of weight matrices could help to scale such approaches. Our goal is to open a discussion on this topic, starting with recurrent neural networks for character-level language modelling whose weight matrices are encoded by the discrete cosine transform. Our fast weight version thereof uses a recurrent neural network to parameterise the compressed weights. We present experimental results on the enwik8 dataset.

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    SeLoRA reparameterizes LoRA updates as inverse Fourier or wavelet transforms of sparsely masked spectral coefficients, improving fine-tuning accuracy on LLaMA models with fewer trainable parameters.

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