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Word - Pages
Word - Pages

Learning: On the Multiple Facets of a Colloquial Concept
Learning: On the Multiple Facets of a Colloquial Concept

On real-world temporal pattern recognition using Liquid State
On real-world temporal pattern recognition using Liquid State

... snapshots of a ‘now’ often don’t suffice. Apart from visual recognition of faces and objects, many patterns in the real world around us only present themselves over periods of time, showing their features and characteristics over different ‘now’s. Our senses provide us with endless streams of inform ...
IoT and Machine Learning
IoT and Machine Learning

... Types of Problems •Classification: Data is labelled meaning it is assigned a class, for example spam/nonspam or fraud/nonfraud. The decision being modelled is to assign labels to new unlabelled pieces of data. This can be thought of as a discrimination problem, modelling the differences or similari ...
Vita  - CIS Users web server
Vita - CIS Users web server

... Developed and evaluated automatic methods for desktop activity recognition. Summer 2004: Intern at Microsoft Research with Christopher Meek in Redmond, WA. Developed simple yet effective attacks against linear spam filters, testing filter robustness and promoting the development of more secure spam ...
MS PowerPoint 97/2000 format
MS PowerPoint 97/2000 format

... • Single-pass, separately trained inducers, common input • Individual outputs combined to get scalar output (e.g., linear combination) – Boosting the margin: separately trained inducers, different input distributions • Filtering: feed examples to trained inducers (weak classifiers), pass on to next ...
Decision DAGS – A new approach
Decision DAGS – A new approach

... 1. For each attribute class of the node complete the following steps: a. Split the examples at the node based on the given attribute. b. For each of the subsets, traverse the nodes of the fringe and check to see if the given subset could merge with the given node. If a merge is possible calculate th ...
Why Machine Learning? - Lehrstuhl für Informatik 2
Why Machine Learning? - Lehrstuhl für Informatik 2

... Importance: How can computers be programmed that they 'learn' Machine learning  natural learning Application areas  Data mining: automatic detection of regularity in big amounts of data  Implementation of software, which cannot be easily programmed by hand  Self adaptive programs: programs for p ...
Document
Document

... are updated. After a stimulus has been presented in all the training locations, a new stimulus is chosen at random and the process repeated. The presentation of all the stimuli across all locations constitutes 1 epoch of training. In this manner the network is trained one layer at a time starting wi ...
Pareto-Based Multiobjective Machine Learning: An
Pareto-Based Multiobjective Machine Learning: An

... distance measure. The third category is reinforcement learning, which aims to find a policy for an agent to take actions that maximize the cumulated rewards in a given environment. All learning algorithms perform model selection and parameter estimation based on one or multiple criteria. In supervis ...
Big Data Analytics Using Neural networks
Big Data Analytics Using Neural networks

... Figure 1: An Artificial Neural Network -------------------------------------------------------------Figure 2: Activation Functions ----------------------------------------------------------------------Figure 3: Transfer Function :sigmoid -------------------------------------------------------------- ...
AI in Automotive? - Linux Foundation Events
AI in Automotive? - Linux Foundation Events

... natural language processing, and music/audio signal recognition where they have been shown to produce state-of-the-art results on various tasks. Wikipedia ...
A Counter Based Connectionist Model of Animal Timing - APT
A Counter Based Connectionist Model of Animal Timing - APT

... proposed by SET. Simulations generated approximations of animal data including the scalar property. In addition, the acquisition of close to geometrical mean bisection was performed by a neural network which learnt the most optimal discriminant between the small and large intervals, ...
as a PDF
as a PDF

... In the visual servoing task, BECCA demonstrated its ability to achieve better than random performance on an RL task with a 58-dimensional observationaction space, about which it had no prior knowledge. The visual servoing task was trivial and has many straightforward solutions that incorporate some ...
PDF
PDF

... the specific network N , where we store 1 ‹ 2 log ‚ bits for each parameter in Q . The second term measures how many bits are needed for the encoded representation of x . Minimizing the MDL score involves tradeoffs between these two factors. Thus, the MDL score of a larger network might be worse (la ...
Synchronization and coordination of sequences in two neural
Synchronization and coordination of sequences in two neural

View PDF - Advances in Cognitive Systems
View PDF - Advances in Cognitive Systems

... agent and is less cognitively plausible. Li et al. (2012) recently proposed an efficient algorithm that acquires representation knowledge in the form of “deep features,” and use the acquired representation to automatically generate feature predicates to assist future learning. The authors demonstrat ...
daniel lowd - CIS Users web server
daniel lowd - CIS Users web server

... Summer 2008: Intern at SmartDesktop division of Pi Corporation, Seattle, WA. Developed and evaluated automatic methods for desktop activity recognition. Summer 2004: Intern at Microsoft Research with Christopher Meek in Redmond, WA. Developed simple yet effective attacks against linear spam filters, ...
A Comprehensive Survey on Machine Learning of Artificial Intelligence
A Comprehensive Survey on Machine Learning of Artificial Intelligence

... Figure 1. The Basic Structure If learning system to provide guidance and disorderly implementation of specific action specific information, the learning system deletes of the unnecessary details after gaining sufficient data, sums up the promotion, to form the general principles of guiding the actio ...
Unsupervised feature learning from finite data by
Unsupervised feature learning from finite data by

... continuous transitions. (b) Median of convergence (learning) time defined by the number of iterations at which BP converges to a fixed point. Two different values of β are considered. For β = 1, results for a larger N are also shown. The inset shows that the peak learning time scales linearly with N ...
- MIT Press Journals
- MIT Press Journals

... that this was a feasible way of learning the weights in small networks, but even with the help of simulated annealing, this learning procedure was much too slow to be practical for learning large, multilayer Boltzmann machines. Even for small networks, the learning rate must be very small to avoid a ...
An Efficient Learning Procedure for Deep Boltzmann Machines
An Efficient Learning Procedure for Deep Boltzmann Machines

... that this was a feasible way of learning the weights in small networks, but even with the help of simulated annealing, this learning procedure was much too slow to be practical for learning large, multilayer Boltzmann machines. Even for small networks, the learning rate must be very small to avoid a ...
Neural Network Dynamics
Neural Network Dynamics

... often continues beyond the period of stimulus presentation and, in cases where shortterm memory of the stimulus is required for a task, such sustained activity can last for tens of seconds (Wang & Goldman-Rakic 2004). Neuronal firing at a constant rate is a form of internally generated activity known ...
Artificial Intelligence in Network Intrusion Detection
Artificial Intelligence in Network Intrusion Detection

... with one or more layers between input and output layer. Feedforward means that data flows in one direction from input to the output layer (i.e. forward). This type of network is trained with the error back-propagation learning algorithm. The true power and advantage of MLP lies in its ability to rep ...
Bayesian Spiking Neurons II: Learning
Bayesian Spiking Neurons II: Learning

... be used as building blocks to represent hierarchies of hidden causes for their input. The output spike trains of the Bayesian neurons are close to inhomogeneous Poisson processes, whose rates depend on the state of xt (see section 3 of the companion letter). Thus, we propose to apply a learning rule ...
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Catastrophic interference



Catastrophic Interference, also known as catastrophic forgetting, is the tendency of a artificial neural network to completely and abruptly forget previously learned information upon learning new information. Neural networks are an important part of the network approach and connectionist approach to cognitive science. These networks use computer simulations to try and model human behaviours, such as memory and learning. Catastrophic interference is an important issue to consider when creating connectionist models of memory. It was originally brought to the attention of the scientific community by research from McCloskey and Cohen (1989), and Ractcliff (1990). It is a radical manifestation of the ‘sensitivity-stability’ dilemma or the ‘stability-plasticity’ dilemma. Specifically, these problems refer to the issue of being able to make an artificial neural network that is sensitive to, but not disrupted by, new information. Lookup tables and connectionist networks lie on the opposite sides of the stability plasticity spectrum. The former remains completely stable in the presence of new information but lacks the ability to generalize, i.e. infer general principles, from new inputs. On the other hand, connectionst networks like the standard backpropagation network are very sensitive to new information and can generalize on new inputs. Backpropagation models can be considered good models of human memory insofar as they mirror the human ability to generalize but these networks often exhibit less stability than human memory. Notably, these backpropagation networks are susceptible to catastrophic interference. This is considered an issue when attempting to model human memory because, unlike these networks, humans typically do not show catastrophic forgetting. Thus, the issue of catastrophic interference must be eradicated from these backpropagation models in order to enhance the plausibility as models of human memory.
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