Tag: R
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HDF Portable File System
While doing some deep learning neural network analysis for image recognition I ran across data that was provided in a file structure called HDF5. It was easy to use, and, as I discovered, the file system worked across many platforms, and was easily accessible using libraries and packages provided in both R and Python. This…
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Deep Learning & Neural Networks: Part 4
Building a Deep Neural Network: 2 Layer Logistic Regression This post will walk through the process of building a 2 Layer Logistic Regression Neural Network. The process goes as follows: Forward Functions: As you can see from figure 1, the 2-layer neural network can be summarized as: Input of Feature Vectors which in this case is…
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Deep Learning and Neural Networks: Part 3
As suggested at the beginning of the first post on neural networks, this post just covers the transformation of images to an HDF5 file. You can easily skip this post if you are not interested in this step. However, it is a short post, and the most important step here is making sure that you…
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Graphs, what are they, and can they help us associate Words with Data?
A network is a collection of things, like computers, that interact with one another. This can be a physical network with routers, switches, and hubs, as well as the World Wide Web where documents are linked to one another. While the documents themselves might be interesting, a vast amount of information can be extracted by…
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Anscombe Quartet
Anscombe’s quartet actually has nothing to do with music, but when I hear the word quartet I associate it with music. However, this particular quartet refers to four datasets with very similar descriptive statistics. When these data are plotted you will see that they are obviously very different data sets. The idea was developed by…
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Natural Language Processing and Sentiment Analysis
Why is it there is no “Boring” button for posts on Facebook, Twitter, LinkedIn, and most other social media sites? It would make sentiment analysis so much easier. My opinion, it is to maintain some semblance of decorum and civility, as well as sparing people’s feelings. It’s bad enough when you get a 1,000 views,…
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Predictive Analytics Platform for Overcoming Memory Limitations
IF you’re interested, with emphasis on the IF, I provide an easy to follow step-by-step guide for building a predictive analytics, or data profiling platform utilizing Hadoop, and Spark to overcome some of the memory limitations that come with using a desktop version of R for extremely large data sets. Also, it provides notes that…