Previously, we learned how to use CountVectorizer for text processing. In place of CountVectorizer, you also have the option of using HashingVectorizer. In this tutorial, we will learn how HashingVectorizer differs from CountVectorizer and when to use which. CountVectorizer vs. HashingVectorizer HashingVectorizer and CountVectorizer are meant to do the same thing. Which is to convert a collection of text documents to a matrix of token occurrences. The difference is that HashingVectorizer does not store the resulting vocabulary (i.e. the unique […]

Word2Vec is a widely used word representation technique that uses neural networks under the hood. The resulting word representation or embeddings can be used to infer semantic similarity between words and phrases, expand queries, surface related concepts and more. The sky is the limit when it comes to how you can use these embeddings for different NLP tasks. In this article, we will look at how the different neural network architectures for training a Word2Vec model behave in practice. The […]

Big data describes the volumes of data that your company generates, every single day. Both structured and unstructured. Analysts at Gartner estimate that more than 80 percent of enterprise data is unstructured. Meaning, they can be text files from IT logs, emails from customer support, direct Twitter messages from customers, and employee complaints to your HR department. This type of diverse and scattered data sources is true of almost every enterprise. A big data strategy, on the other hand, is a glorified term for how […]

AI is transforming nearly every industry, and text analysis is a key area of interest. That’s because there’s been an explosion in unstructured text data—nearly 80% of data at most organizations—which is quickly becoming impractical to analyze by humans alone. We’ve already talked about some best practices for building a text classifier, but how can a tool like this help your business? Let’s take a closer look at document classification and some real-world examples. What Is Document Classification? Organizations need […]