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Transformer-based pre-trained language models have demonstrated superior performance on various natural language processing tasks. However, it remains unclear how the skills required to handle these tasks distribute among model parameters.…

计算与语言 · 计算机科学 2022-11-15 Xiaozhi Wang , Kaiyue Wen , Zhengyan Zhang , Lei Hou , Zhiyuan Liu , Juanzi Li

Neuromodulatory receptors in presynaptic position have the ability to suppress synaptic transmission for seconds to minutes when fully engaged. This effectively alters the synaptic strength of a connection. Much work on neuromodulation has…

神经与进化计算 · 计算机科学 2014-05-13 Gabriele Scheler , Johann Schumann

Deep neural networks are inherently opaque and challenging to interpret. Unlike hand-crafted feature-based models, we struggle to comprehend the concepts learned and how they interact within these models. This understanding is crucial not…

计算与语言 · 计算机科学 2023-07-12 Shammur Absar Chowdhury , Nadir Durrani , Ahmed Ali

Predicting how the brain can be driven to specific states by means of internal or external control requires a fundamental understanding of the relationship between neural connectivity and activity. Network control theory is a powerful tool…

神经元与认知 · 定量生物学 2019-08-12 Teresa M. Karrer , Jason Z. Kim , Jennifer Stiso , Ari E. Kahn , Fabio Pasqualetti , Ute Habel , Danielle S. Bassett

Transformer-based models generate hidden states that are difficult to interpret. In this work, we analyze hidden states and modify them at inference, with a focus on motion forecasting. We use linear probing to analyze whether interpretable…

机器学习 · 计算机科学 2025-05-19 Omer Sahin Tas , Royden Wagner

The notion of memory capacity, originally introduced for echo state and linear networks with independent inputs, is generalized to nonlinear recurrent networks with stationary but dependent inputs. The presence of dependence in the inputs…

最优化与控制 · 数学 2020-10-28 Lukas Gonon , Lyudmila Grigoryeva , Juan-Pablo Ortega

Causal relations among neuronal populations of the brain are studied through the so-called effective connectivity (EC) network. The latter is estimated from EEG or fMRI measurements, by inverting a generative model of the corresponding…

系统与控制 · 计算机科学 2018-02-16 Giulia Prando , Mattia Zorzi , Alessandra Bertoldo , Alessandro Chiuso

Studying psychiatric illness has often been limited by difficulties in connecting symptoms and behavior to neurobiology. Computational psychiatry approaches promise to bridge this gap by providing formal accounts of the latent information…

Recurrent networks with transfer functions that fulfill the Lipschitz continuity with K=1 may be echo state networks if certain limitations on the recurrent connectivity are applied. It has been shown that it is sufficient if the largest…

神经与进化计算 · 计算机科学 2016-12-28 Norbert Michael Mayer

Echo path delay (or ref-delay) estimation is a big challenge in acoustic echo cancellation. Different devices may introduce various ref-delay in practice. Ref-delay inconsistency slows down the convergence of adaptive filters, and also…

音频与语音处理 · 电气工程与系统科学 2022-08-12 Yi Zhang , Chengyun Deng , Shiqian Ma , Yongtao Sha , Hui Song

Continuous time recurrent neural networks (CTRNN) are systems of coupled ordinary differential equations that are simple enough to be insightful for describing learning and computation, from both biological and machine learning viewpoints.…

动力系统 · 数学 2021-06-18 Peter Ashwin , Claire M Postlethwaite

We report about probabilistic likelihood estimates that are performed on time series using an echo state network with orthogonal recurrent connectivity. The results from tests using synthetic stochastic input time series with temporal…

神经与进化计算 · 计算机科学 2017-06-14 Norbert Michael Mayer , Ying-Hao Yu

Convolutional Neural Networks (CNN) outperform traditional classification methods in many domains. Recently these methods have gained attention in neuroscience and particularly in brain-computer interface (BCI) community. Here, we introduce…

机器学习 · 计算机科学 2019-02-12 Ivan Zubarev , Rasmus Zetter , Hanna-Leena Halme , Lauri Parkkonen

Transferring knowledge from one neural network to another has been shown to be helpful for learning tasks with few training examples. Prevailing fine-tuning methods could potentially contaminate pre-trained features by comparably high…

机器学习 · 计算机科学 2019-07-15 Farshid Varno , Behrouz Haji Soleimani , Marzie Saghayi , Lisa Di Jorio , Stan Matwin

We introduce a novel loss function, Covariance Loss, which is conceptually equivalent to conditional neural processes and has a form of regularization so that is applicable to many kinds of neural networks. With the proposed loss, mappings…

机器学习 · 计算机科学 2025-04-02 Boseon Yoo , Jiwoo Lee , Janghoon Ju , Seijun Chung , Soyeon Kim , Jaesik Choi

Understanding the relation between cortical neuronal network structure and neuronal activity is a fundamental unresolved question in neuroscience, with implications to our understanding of the mechanism by which neuronal networks evolve…

Consider a large Boolean network with a feed forward structure. Given a probability distribution on the inputs, can one find, possibly small, collections of input nodes that determine the states of most other nodes in the network? To answer…

信息论 · 计算机科学 2013-05-23 Reinhard Heckel , Steffen Schober , Martin Bossert

Tracking entities in procedural language requires understanding the transformations arising from actions on entities as well as those entities' interactions. While self-attention-based pre-trained language encoders like GPT and BERT have…

计算与语言 · 计算机科学 2019-09-09 Aditya Gupta , Greg Durrett

We develop a diagrammatic approach to effective field theories (EFTs) corresponding to deep neural networks at initialization, which dramatically simplifies computations of finite-width corrections to neuron statistics. The structures of…

高能物理 - 理论 · 物理学 2023-05-12 Ian Banta , Tianji Cai , Nathaniel Craig , Zhengkang Zhang

The critical boundaries separating ordered from chaotic behavior in randomly wired S-state networks are calculated. These networks are a natural generalization of random Boolean nets and are proposed as on extended approach to genetic…

adap-org · 物理学 2007-05-23 Ricard V. Sole , Bartolo Luque , Stuart Kauffman