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Trend in times series analysis
Time series analysis is widely used to forecast logistics, production or other business processes. Usually you want to understand if there is a trend or a seasonality in the time series. This could...
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Using R in SQL Server 2016 CTP 3 to train and query a predictive model
SQL Server 2016 CTP 3 One of the exciting features of SQL Server 2016 is the R integration based on Revolution R Enterprise. The online documentation contains detailed information about the...
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Fill down table in T-SQL (last-non-empty value)
SQL Server 2012-2016 A common task in data processing is to fill null values in a table with the latest existing value. For example, look at the following inventory table Let’s assume we only get an...
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A common pitfall with correlations in timeseries
Correlations are often considered an important measure to understand the underlying (probably hidden) patterns in data sets. But as with other statistical measures, a complex situation (many variables,...
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Using R Server in SQL Server 2016 to calculate the expected value for CRM...
SQL Server 2016 In this post I’m demonstrating a use case for the new R Server (formerly known as Revolution R Enterprise) in SQL Server 2016 to calculate the expected value for CRM leads using a Monte...
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Why doesn’t my decision tree recognize a simple pattern?
Data Mining algorithms are sometimes perceived to be extremly intelligent and established with many super powers, humans don’t have. In today’s post I’d like to show a simple example in which a mining...
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OpenStreetMap and other map sources for Reporting Services maps
SQL Server 2005-2016 The map functionality in Reporting Services may seem a little bit outdated with all the nice and interactive fancy maps for example in Power BI. However, standard reports still...
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Virtuelle Data Science Konferenz am 15.12.2016
Am 15.12.2016 findet die erste “virtuelle Data Science Konferenz” von Microsoft statt. In zahlreichen interessanten Vorträgen wird ein guter Überblick über das Thema und den aktuellen Stand der Dinge...
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Künstliche Intelligenz ermöglicht automatische Verschlagwortung von...
Mode ist kurzlebig. Gerade zum Saisonwechsel erscheint eine Vielzahl neuer Produkte, die um die Gunst der Käufer konkurrieren. Während in der Filiale die bunte Auswahl direkt ins Auge springt, kommt es...
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Ohne externe Daten macht Data Science einfach keinen Sinn!
In Artikeln zur Digitalisierung wird oft von bahnbrechenden Erkenntnissen und Optimierungen berichtet. Wenn sich diese auf Basis der eigenen Daten nicht einstellen mögen, liegt die Vermutung nahe, dass...
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