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Nonparametric Teaching of Attention Learners

arXiv:2602.20461v1 Announce Type: new Abstract: Attention learners, neural networks built on the attention mechanism, e.g., transformers, excel at learning the implicit relationships that relate sequences to their corresponding properties, e.g., mapping a given sequence of tokens to the probability of the next token. However, the learning process tends to be costly. To address this, we present a novel paradigm named Attention Neural Teaching (AtteNT) that reinterprets the learning process through a nonparametric teaching perspective. Specifically, the latter provides a theoretical framework for teaching mappings that are implicitly defined (i.e., nonparametric) via example selection. Such an implicit mapping is embodied through a dense set of sequence-property pairs, with the AtteNT teacher selecting a subset to accelerate convergence in attention learner training. By analytically investigating the role of attention on parameter-based gradient descent during training, and recasting th

arXiv:2602.20461v1 Announce Type: new Abstract: Attention learners, neural networks built on the attention mechanism, e.g., transformers, excel at learning the implicit relationships that relate sequences to their corresponding properties, e.g., mapping a given sequence of tokens to the probability of the next token. However, the learning process tends to be costly. To address this, we present a novel paradigm named Attention Neural Teaching (AtteNT) that reinterprets the learning process through a nonparametric teaching perspective. Specifically, the latter provides a theoretical framework for teaching mappings that are implicitly defined (i.e., nonparametric) via example selection. Such an implicit mapping is embodied through a dense set of sequence-property pairs, with the AtteNT teacher selecting a subset to accelerate convergence in attention learner training. By analytically investigating the role of attention on parameter-based gradient descent during training, and recasting the evolution of attention learners, shaped by parameter updates, through functional gradient descent in nonparametric teaching, we show for the first time that teaching attention learners is consistent with teaching importance-adaptive nonparametric learners. These new findings readily commit AtteNT to enhancing learning efficiency of attention learners. Specifically, we observe training time reductions of 13.01% for LLMs and 20.58% for ViTs, spanning both fine-tuning and training-from-scratch regimes. Crucially, these gains are achieved without compromising accuracy; in fact, performance is consistently preserved and often enhanced across a diverse set of downstream tasks.

Executive Summary

This article introduces Attention Neural Teaching (AtteNT), a novel paradigm that reinterprets the learning process of attention learners through a nonparametric teaching perspective. AtteNT accelerates convergence in attention learner training by selecting a subset of sequence-property pairs, resulting in training time reductions of up to 20.58% without compromising accuracy. The framework provides a theoretical foundation for teaching mappings that are implicitly defined, and its application has the potential to enhance learning efficiency in various attention learner models.

Key Points

  • Attention Neural Teaching (AtteNT) paradigm
  • Nonparametric teaching perspective
  • Accelerated convergence in attention learner training

Merits

Improved Learning Efficiency

AtteNT achieves significant training time reductions without compromising accuracy

Demerits

Limited Generalizability

The effectiveness of AtteNT may be limited to specific attention learner models and tasks

Expert Commentary

The introduction of AtteNT marks a significant advancement in the field of attention learners, as it provides a theoretical framework for accelerating convergence in training processes. The paradigm's ability to select a subset of sequence-property pairs to facilitate efficient learning is a notable contribution. However, further research is necessary to fully explore the potential of AtteNT and its applicability to various attention learner models and tasks. The implications of this work are substantial, with potential applications in natural language processing, computer vision, and other fields where attention learners are commonly employed.

Recommendations

  • Further investigation into the generalizability of AtteNT to various attention learner models and tasks
  • Exploration of potential applications in resource-constrained or real-time learning environments

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