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There exist a large number of metrics to evaluate the performance and risk of a trading strategy. Although those metrics have proven to be useful tools in practice, most of them require a large amount of data and yield unstable results on shorter timescales. Quantopian allows... Read more
Data Science on a Budget: Maximizing Insight and Impact – Nicholas Arcolano PhD from freshdatabos Talk Abstract Many companies have “big data”, but not every company has the resources (or need) for a big data team. In this talk we will discuss lessons I’ve learned from... Read more
In Defense of Imprecision: Why Traditional Approaches to Data Visualization are Changing from freshdatabos In the worlds of research, science, and academia, much attention is given to precision, objectivity, and de-biasing data. The ability to “lie with data” is a legitimate concern. In business analytics, and... Read more
Vector Space Word Representations – Rani Nelken PhD from freshdatabos NLP has traditionally mapped words to discrete elements without underlying structure. Recent research replaces these models with vector-based representations, efficiently learned using neural networks. The resulting embeddings not only improve performance on a variety of tasks,... Read more
Visualizing Networks from freshdatabos Network data is increasingly pervasive, but can be hard to work with. The naive first pass at a network diagram usually looks like a “hairball.” If you add some simple network measures like degree, betweenness, centrality, and community membership, you’ll be able... Read more
Big Data 2.0 and Analytics 3.0 create an unprecedented opportunity for large companies to become as nimble and innovative as smaller companies by democratizing analytics and decision-making. However, success requires building an information culture, with an emphasis on bottom-up information-seeking and sharing – plus giving people... Read more