Burak Himmetoglu
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  • Santa Barbara
  • United States
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HPC Specialist
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Burak Himmetoglu's Blog

Pancake: A Python package for model stacking

Posted on January 14, 2019 at 10:42pm 0 Comments

In a previous post, I have provided a discussion of model stacking, a popular approach in data science competitions for boosting predictive performance. Since then, the post has attracted some attention, so I have decided to put together a Python package which provides a simple API to stack models with minimal effort.

In this post, I will present the …


An overview of feature selection strategies

Posted on September 19, 2018 at 9:58pm 0 Comments


Feature selection and engineering are the most important factors which affect the success of predictive modeling. This remains true even today despite the success of deep learning, which comes with automatic feature engineering. Parsimonious and interpretable models provide simple insights into business problems and therefore they are deemed very valuable. Furthermore, in many occasions the underlying size and structure of the data being analyzed may not allow the use…


Time series classification with Tensorflow

Posted on August 22, 2017 at 7:00am 7 Comments

Time-series data arise in many fields including finance, signal processing, speech recognition and medicine. A standard approach to time-series problems usually requires manual engineering of features which can then be fed into a machine learning algorithm. Engineering of features generally requires some  domain knowledge of the discipline where the data has originated from. For example, if one is dealing with signals (i.e. classification of EEG signals), then possible features would involve…


Feature Engineering with Tidyverse

Posted on April 10, 2017 at 7:30am 0 Comments

In this blog post, I will discuss feature engineering using the Tidyverse collection of libraries. Feature engineering is crucial for a variety of reasons, and it requires some care to produce any useful outcome. In this post, I will consider a dataset that contains description of crimes in San Francisco between…


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