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We demonstrate the possibility of what we call sparse learning: accelerated training of deep neural networks that maintain sparse weights throughout training while achieving dense performance levels. We accomplish this by developing sparse…

机器学习 · 计算机科学 2019-08-27 Tim Dettmers , Luke Zettlemoyer

Softmax function is widely used in artificial neural networks for multiclass classification, multilabel classification, attention mechanisms, etc. However, its efficacy is often questioned in literature. The log-softmax loss has been shown…

机器学习 · 计算机科学 2020-11-24 Kunal Banerjee , Vishak Prasad C , Rishi Raj Gupta , Karthik Vyas , Anushree H , Biswajit Mishra

For a broad variety of critical applications, it is essential to know how confident a classification prediction is. In this paper, we discuss the drawbacks of softmax to calculate class probabilities and to handle uncertainty in Bayesian…

机器学习 · 计算机科学 2019-06-11 Christian Herta , Benjamin Voigt

The softmax function is a fundamental component in deep learning. This study delves into the often-overlooked parameter within the softmax function, known as "temperature," providing novel insights into the practical and theoretical aspects…

机器学习 · 计算机科学 2025-03-03 Hao Xuan , Bokai Yang , Xingyu Li

Dropout is commonly used to help reduce overfitting in deep neural networks. Sparsity is a potentially important property of neural networks, but is not explicitly controlled by Dropout-based regularization. In this work, we propose…

机器学习 · 计算机科学 2019-04-18 Najeeb Khan , Ian Stavness

We introduce softpick, a rectified, not sum-to-one, drop-in replacement for softmax in transformer attention mechanisms that eliminates attention sink and massive activations. Our experiments with 340M and 1.8B parameter models demonstrate…

机器学习 · 计算机科学 2026-04-20 Zayd M. K. Zuhri , Erland Hilman Fuadi , Alham Fikri Aji

The Sparsespeech model is an unsupervised acoustic model that can generate discrete pseudo-labels for untranscribed speech. We extend the Sparsespeech model to allow for sampling over a random discrete variable, yielding…

音频与语音处理 · 电气工程与系统科学 2020-06-01 Benjamin Milde , Chris Biemann

Overconfidence has been shown to impair generalization and calibration of a neural network. Previous studies remedy this issue by adding a regularization term to a loss function, preventing a model from making a peaked distribution. Label…

机器学习 · 计算机科学 2022-10-26 Dongkyu Lee , Ka Chun Cheung , Nevin L. Zhang

Sparse deep learning has become a popular technique for improving the performance of deep neural networks in areas such as uncertainty quantification, variable selection, and large-scale network compression. However, most existing research…

机器学习 · 统计学 2023-10-06 Mingxuan Zhang , Yan Sun , Faming Liang

The sparse modeling is an evident manifestation capturing the parsimony principle just described, and sparse models are widespread in statistics, physics, information sciences, neuroscience, computational mathematics, and so on. In…

机器学习 · 计算机科学 2023-08-29 Jianyi Lin

State-of-the-art Deep Neural Networks can be easily fooled into providing incorrect high-confidence predictions for images with small amounts of adversarial noise. Does this expose a flaw with deep neural networks, or do we simply need a…

计算机视觉与模式识别 · 计算机科学 2017-07-25 Akshayvarun Subramanya , Suraj Srinivas , R. Venkatesh Babu

A soft-max function has two main efficiency measures: (1) approximation - which corresponds to how well it approximates the maximum function, (2) smoothness - which shows how sensitive it is to changes of its input. Our goal is to identify…

机器学习 · 计算机科学 2026-01-01 Alessandro Epasto , Mohammad Mahdian , Vahab Mirrokni , Manolis Zampetakis

Submodular function optimization has numerous applications in machine learning and data analysis, including data summarization which aims to identify a concise and diverse set of data points from a large dataset. It is important to…

数据结构与算法 · 计算机科学 2023-04-11 Shaojie Tang , Jing Yuan , Twumasi Mensah-Boateng

Typically, Softmax is used in the final layer of a neural network to get a probability distribution for output classes. But the main problem with Softmax is that it is computationally expensive for large scale data sets with large number of…

机器学习 · 计算机科学 2018-12-17 Abdul Arfat Mohammed , Venkatesh Umaashankar

We investigate sparse representations for control in reinforcement learning. While these representations are widely used in computer vision, their prevalence in reinforcement learning is limited to sparse coding where extracting…

机器学习 · 计算机科学 2018-11-19 Vincent Liu , Raksha Kumaraswamy , Lei Le , Martha White

Recently, it has been argued that encoder-decoder models can be made more interpretable by replacing the softmax function in the attention with its sparse variants. In this work, we introduce a novel, simple method for achieving sparsity in…

计算与语言 · 计算机科学 2021-10-07 Biao Zhang , Ivan Titov , Rico Sennrich

Calibrating verbalized probabilities presents a novel approach for reliably assessing and leveraging outputs from black-box Large Language Models (LLMs). Recent methods have demonstrated improved calibration by applying techniques like…

计算与语言 · 计算机科学 2024-10-10 Cheng Wang , Gyuri Szarvas , Georges Balazs , Pavel Danchenko , Patrick Ernst

The softmax content-based attention mechanism has proven to be very beneficial in many applications of recurrent neural networks. Nevertheless it suffers from two major computational limitations. First, its computations for an attention…

机器学习 · 计算机科学 2016-09-20 Alexandre de Brébisson , Pascal Vincent

Gating mechanisms have been widely utilized, from early models like LSTMs and Highway Networks to recent state space models, linear attention, and also softmax attention. Yet, existing literature rarely examines the specific effects of…

In a multi-class classification problem, it is standard to model the output of a neural network as a categorical distribution conditioned on the inputs. The output must therefore be positive and sum to one, which is traditionally enforced…

神经与进化计算 · 计算机科学 2016-03-01 Alexandre de Brébisson , Pascal Vincent