DenseMamba: State Space Models with Dense Hidden Connection for Efficient Large Language Models
CoRR(2024)
摘要
Large language models (LLMs) face a daunting challenge due to the excessive
computational and memory requirements of the commonly used Transformer
architecture. While state space model (SSM) is a new type of foundational
network architecture offering lower computational complexity, their performance
has yet to fully rival that of Transformers. This paper introduces DenseSSM, a
novel approach to enhance the flow of hidden information between layers in
SSMs. By selectively integrating shallowlayer hidden states into deeper layers,
DenseSSM retains fine-grained information crucial for the final output. Dense
connections enhanced DenseSSM still maintains the training parallelizability
and inference efficiency. The proposed method can be widely applicable to
various SSM types like RetNet and Mamba. With similar model size, DenseSSM
achieves significant improvements, exemplified by DenseRetNet outperforming the
original RetNet with up to 5
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