Basket analysis: application and characteristics
Basket analysis is a popular data mining technique, primarily used for the content of shopping baskets in retail, marketing, and e-commerce.
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Rule induction algorithms – discovering patterns in data
Rule induction is one of the key methods in the field of artificial intelligence and machine learning. It enables the automatic extraction of patterns and relationships from data. This technique involves analysing data sets to formulate general rules that describe the relationships between variable…
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Automatic preparation of data for analysis, part II
Preparing data for analysis, as has been said many times on this blog, is a key part of analysis. It is often a time-consuming and difficult process that even experienced data analysts can find difficult. In this article, we return to the issue of automatic data preparation in PS CLEMENTINE PRO. P…
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Automatic preparation of data for analysis
Data preparation plays a key role in data analysis and machine learning processes. Its importance stems from several important aspects that affect the quality and reliability of the results. High-quality data influences more accurate and reliable statistical models. Raw, unprocessed data often cont…
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Coefficient of determination R²: what is it and how to interpret it?
The coefficient of determination, denoted R² (R-square), is one of the most commonly used statistical tools for model evaluation. It offers a measure of how well a model under test fits the data. In this article, we'll look at what exactly the R² coefficient is and what role it plays in data analys…
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Median
The median is a statistic that we classify as a measure of central tendency. It is one of the most popular descriptive statistics next to the arithmetic mean. For students of analytics, it is a statistic with which they become familiar as one of the first. In addition to its simple interpretation …
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Predictive AI vs. Generative AI – characteristics and differences
Artificial intelligence (AI) is one of the most exciting and rapidly developing areas of technology in the modern world. From self-learning algorithms to advanced image recognition systems to autonomous vehicles, AI is revolutionizing various areas of our lives. What exactly is artificial intellige…
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Story of a pie
You may not know this but this year is the 217th birthday of the humble pie chart. Its first known, and purposeful, application was the visualisation of the geographical distribution of the Turkish Empire across three continents: Asia, Europe, and Africa. It was first presented in Statistical Brevi…
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Parametric versus non-parametric tests. Which test to choose for analysis?
Statistical analysis is an integral part of scientific research and working with data. In order to draw valid conclusions, the use of appropriate statistical tests is essential. The analyst is often faced with the choice of which test to choose in a given situation. This is important because the wr…
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