Training Neural Networks We talked previously about how an artificial neuron (from now on lets call them Perceptrons like the cool kids do) generated its output from its inputs using its activation function. We also mentioned briefly that the inputs were altered by the weights on the input synapses. Now…
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In Part 1, we introduced the idea of a neuron as the building block for neural networks, it has inputs and outputs and uses an activation function to generate the output from the weighted inputs. This time we are going to explore the activation function in a bit more detail…
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Part One in a series... Welcome to part one in a series helping demystify Neural Networks. The aim of this series is to give you a solid understanding of neural networks and Deep Learning (DL) so that you can start to develop your skills to actually build simple DL models…
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It is tradition to start any conversation about graphs by explaining that they are nothing to do with pretty pictures but are in fact a mathematical construct consisting of nodes and edges. I’m not going to explain graphs here, there are any number of great Youtube videos or websites which…
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User and Entity Behavioural Analytics systems have changed the way organisations do security monitoring and have been responsible for detecting and thwarting some of the most major potential security breaches in the last few years. A UEBA system is often the first thing an organisation reaches for after they have…
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Machine learning tends to require quite considerable hardware due to the large number of calculations required. Whilst it is easier than ever to rent your hardware from the major service providers like Amazon and google and from specialist Machine Learning cloud providers like Databricks, there is a certain satisfaction in…
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At the time of writing this article I lead the Solutions Architecture team at Exabeam, a UEBA based SIEM company. As such, I tended to get into some pretty interesting conversations with customers about both security monitoring and data science. My favourite conversation by subject is definitely when customers tell…
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