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• PASS SQL Saturday #567 Slovenia 2016

  So we are back again The leading event dedicated to Microsoft SQL Server in Slovenia will take place on Saturday, 10 th December 2016 , at the Faculty of Computer and Information Science of the University of Ljubljana , Večna pot 113, Ljubljana ( http://www.fri.uni-lj.si/en/about/how_to_reach_us/ Read More... Posted Thursday, July 7, 2016 5:36 PM by Dejan Sarka | 0 Comments Filed under: Ljubljana, SQL PASS, Slovenia, SQL Saturday, training, Community Event, Conference

• PASS SQL Saturday #460 Slovenia 2015 Recapitulation

  Our third SQL Saturday in Ljubljana is over. Two weeks seems to be enough time to sleep over and see things a bit from a distance. Without any further delays, I can declare that it is clear that the event was a pure success Let me start with the numbers, Read More... Posted Wednesday, December 30, 2015 5:25 PM by Dejan Sarka | 0 Comments Filed under: sql server, Ljubljana, SQL PASS, Slovenia, SQL Saturday, training, data, Community Event, Conference

• Data Mining Algorithms – Hierarchical Clustering

  Clustering is the process of grouping the data into classes or clusters so that objects within a cluster have high similarity in comparison to one another, but are very dissimilar to objects in other clusters. Dissimilarities are assessed based on the Read More... Posted Saturday, March 28, 2015 9:33 AM by Dejan Sarka | 2 Comments Filed under: Data Mining, business intelligence, statistics, data analysis, sql server, unsupervised method, continuous learning, patterns, training, data, machine learning, R, clustering

• PASS SQL Saturday #356 Slovenia Recapitulation

  So the event is over. I think I can say for all three organizers, Mladen Prajdić , Matija Lah , and me , that we are tired now. However, we are extremely satisfied. It was a great event. First few numbers and comparison with SQL Saturday #274 , the first Read More... Posted Monday, December 15, 2014 1:28 PM by Dejan Sarka | 4 Comments Filed under: sql server, Ljubljana, SQL PASS, SQL Saturday, training, data, Community Event, Conference

• PASS SQL Saturday #356 Slovenia Pre-Conference Seminars

  I am proud and glad I can announce two top pre-conference seminars at the PASS SQL Saturday #356 Slovenia conference. The speakers and the seminars titles are: Stacia Misner - Power Up Your Data with Excel and Power BI Kevin Boles - Tune Like A Guru! Read More... Posted Monday, September 29, 2014 9:47 AM by Dejan Sarka | 0 Comments Filed under: business intelligence, course, sql server, Ljubljana, SQL PASS, SQL Saturday, training, discount, Community Event, Conference, query optimization

• SQL Saturday #274 Slovenia Recapitulation

  Pure success! I could simply stop here. However, I want to mention again everybody involved in this, and also some who were unfortunately missing. First of all, PASS is the organization that defined SQL Saturdays. And apparently the idea works I have Read More... Posted Monday, December 23, 2013 1:49 PM by Dejan Sarka | 4 Comments Filed under: sql server, Ljubljana, SQL PASS, Slovenia, SQL Saturday, training, data, Community Event

• Fraud Detection with the SQL Server Suite Part 3

  This is the third part of the fraud detection whitepaper. You can find the first part and the second part in my previous blog posts about this topic. Data Preparation The problem of credit card fraud detection is not trivial. With every transaction processed, Read More... Posted Wednesday, November 27, 2013 5:43 PM by Dejan Sarka | 4 Comments Filed under: Data Mining, statistics, sql server, patterns, fraud detection, training, data overview, data preparation, information theory

• Logical and Physical Modeling for Analytical Applications

  I am proud to announce that my first course for Pluralsight is released. The course title is Logical and Physical Modeling for Analytical Applications . Here is the description of the course. A bad data model leads to an application that does not perform Read More... Posted Friday, November 1, 2013 9:44 AM by Dejan Sarka | 2 Comments Filed under: course, training, Data Modeling, analytical applications, physical model, logical model

• Fraud Detection with the SQL Server Suite Part 2

  This is the second part of the fraud detection whitepaper. You can find the first part in my previous blog post about this topic. My Approach to Data Mining Projects It is impossible to evaluate the time and money needed for a complete fraud detection Read More... Posted Tuesday, October 29, 2013 4:42 PM by Dejan Sarka | 4 Comments Filed under: Data Mining, sql server, patterns, fraud detection, training, data overview, data preparation, proof of concept

• Data Quality and Master Data Management Resources

  Many companies or organizations do regular data cleansing. When you cleanse the data, the data quality goes up to some higher level. The data quality level is determined by the amount of work invested in the cleansing. As time passes, the data quality Read More... Posted Monday, October 14, 2013 6:52 PM by Dejan Sarka | 1 Comments Filed under: sql server, Data Quality, data quality services, master data management, master data services, data profiling, training

• Data Mining Resources

  There are many different types of analyses, each one with its own pros and cons. Relational reports have a predefined structure, and end users cannot change it. They are simple to use for end users. Reports can use real-time data and snapshots of data Read More... Posted Thursday, October 10, 2013 10:50 AM by Dejan Sarka | 2 Comments Filed under: Data Mining, business intelligence, data analysis, patterns, training