Information Extraction
How emotion tracking and machine-learning makes the Post Office less stressful
Anyone interested in the future of design should have a look at the new Batmobile. I was lucky enough to be photographed alongside it at the London Film and Comic Convention earlier this year, and my inner geek was impressed. Built like a tank and armour-plated, with twin machine guns mounted on a bat-black body, it's a seriously cool-looking piece of kit. But looks can be deceptive. The Batmobile certainly looked rough and tough, but it was roped off from the crowds so no one could get too close.
Can you win a Facebook data science job? Take the test!
The question is very similar to building a taxonomy to classify user questions into a number of categories, called tags. Interestingly, we face the same problem at Data Science Central: automatically attaching tags (from a set of 5,000 potential tags - e.g. We might hire someone to do this! In short, this is nothing more than automatically putting a structure on unstructured text.
Sales forecasts: how to improve accuracy while simplifying models?
Identify the top four metrics that drive sales among the metrics that I have suggested in this article (by all means, please do not ignore external data sources - including a sentiment analysis index by product, that is, what your customers write about your products on Twitter), and create a simple regression model. You could get it done with Excel (use the data analysis plug-in or the linest functions) and get better forecasts than using a much more sophisticated model based only on internal data coming from just one of your many silos. Get confidence intervals for your sales forecasts: more about this in a few days; I will provide a very simple, model-free, data-driven solution to compute confidence intervals.
The importance of Neutral Class in Sentiment Analysis
Sentiment Analysis (detecting document's polarity, subjectivity and emotional states) is a difficult problem and several times I bumped into unexpected and interesting results. One of the strangest things that I found is that despite the fact that neutral class can improve under specific conditions the classification accuracy, it is often ignored by most researchers.
Global Bigdata Conference
As it turns out, other techniques including website path analysis, text analysis of customer feedback, sentiment analysis of social media, and graph analysis --all distinctly different analytics techniques with each delivering insights complementing the others--revealed a fuller picture: people weren't complaining about price, preferring the cheaper item, or any of the things that the retailer expected. Instead, customers were complaining about how hard it was to find designer jeans on the website. It was a website navigation issue. And the issue was invisible until the retailer made sense of analytics from a variety of sources.
How to Transform your Google Spreadsheet Into an Opinion Mining Tool
This blog was originally featured on blog.aylien.com, a Text Analysis blog with tutorials, Data Visualisations and industry discussions. Our founder, Parsa Ghaffari, gave a talk recently on Natural Language Processing and Sentiment Analysis at the Science Gallery in Dublin. As part of the talk, he put together a nice little example of how you can transform your Google Spreadsheet into a powerful Text Analysis and Data Mining tool. In this case, he took a simple example of analyzing restaurant reviews from a popular review site but the same could be done for hotels, products, service offerings and so on. He wanted to show how easy it can be for data geeks and even the less technical marketers among us, to start analyzing text and gathering business insight from the reams of textual data online today.
Understanding interpersonal relationships with text analytics
Some people seem to get along with everyone. Most people have an innate ability to read other people and quickly adjust their own style to match. We all do it to some degree, but some of us do it better than others. Consciously and unconsciously, we read other people by looking for cues – we evaluate facial expressions, vocal tone, body language, posture and gestures to assess how similar theirs are to our own. Sometimes we adjust accordingly and sometimes we don't, but the real purpose of reading other people is to reduce the ambiguity of our social interactions Great communicators exploit this phenomenon to build rapport with virtually anyone.