Tag: Big Data Analytics

5 data governance lessons from gardening

5 data governance lessons from gardening

If you don’t know what data you have, how can you manage it effectively and generate value from it? With continued growth and a series of fast-paced bank acquisitions and mergers, BBVA Compass’s data grew to over 2.5 petabytes (PB) of data. Much of the data was spread across shared network drives and various legacy … Continue reading 5 data governance lessons from gardening

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Big Data Analytics – Time Series Analysis

Big Data Analytics – Time Series Analysis

Time series is a sequence of observations of categorical or numeric variables indexed by a date, or timestamp. A clear example of time series data is the time series of a stock price. In the following table, we can see the basic structure of time series data. In this case the observations are recorded every … Continue reading Big Data Analytics – Time Series Analysis

Big Data Analytics – Statistical Methods

Big Data Analytics – Statistical Methods

When analyzing data, it is possible to have a statistical approach. The basic tools that are needed to perform basic analysis are − Correlation analysis Analysis of Variance Hypothesis Testing When working with large datasets, it doesn’t involve a problem as these methods aren’t computationally intensive with the exception of Correlation Analysis. In this case, … Continue reading Big Data Analytics – Statistical Methods

Big Data Analytics – Data Exploration

Big Data Analytics – Data Exploration

Exploratory data analysis is a concept developed by John Tuckey (1977) that consists on a new perspective of statistics. Tuckey’s idea was that in traditional statistics, the data was not being explored graphically, is was just being used to test hypotheses. The first attempt to develop a tool was done in Stanford, the project was … Continue reading Big Data Analytics – Data Exploration

5 Essential Skills Every Big Data Analyst Should Have

5 Essential Skills Every Big Data Analyst Should Have

In short, anybody can become a Big Data analyst. All they need to do is master the five essential skills every data analyst should know. Essential big data skill #1: Programming Learning how to code is an essential skill in the Big Data analyst’s arsenal. You need to code to conduct numerical and statistical analysis … Continue reading 5 Essential Skills Every Big Data Analyst Should Have

Big Data Analytics – Data Collection

Big Data Analytics – Data Collection

Data collection plays the most important role in the Big Data cycle. The Internet provides almost unlimited sources of data for a variety of topics. The importance of this area depends on the type of business, but traditional industries can acquire a diverse source of external data and combine those with their transactional data. For … Continue reading Big Data Analytics – Data Collection