Konstantinos Poulinakis – Medium

Konstantinos Poulinakis

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Towards AI

Are My Clusters Correct? Methods for Unsupervised Evaluation of Clustering

How to measure clustering performance and decide on a model when supervised labels are not available. A real-world practical example.

13 min readJan 22, 2023

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Are My Clusters Correct? Methods for Unsupervised Evaluation of Clustering

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Konstantinos Poulinakis
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Towards AI

Is GELU, the ReLU successor ?

Gaussian Error Linear Unit, GELU, combines a regularizer inside the activation function. A promising alternative to ReLU for Neural…

4 min readAug 30, 2022

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Is GELU, the ReLU successor ?

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Konstantinos Poulinakis
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Geek Culture

Three reasons Self-Supervised Learning will dominate AI

Supervised learning was all I studied until I came across Self-Supervised learning. That’s when I decided to upgrade my level.

5 min readNov 22, 2022

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Three reasons Self-Supervised Learning will dominate AI

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Konstantinos Poulinakis
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CodeX

Build an English to German Translator with Docker and Transformers in 15 minutes

Let me guide you through the process of creating a simple translation app using Docker and HuggingFace transformers library.

6 min readNov 28, 2022

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Build an English to German Translator with Docker and Transformers in 15 minutes

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Konstantinos Poulinakis

Barlow Twins, Self Supervised Learning Model Explained.

“ Barlow Twins : Self-Supervised Learning via Redundancy Reduction “ paper explanation. Barlow twins is an architecture for self…

8 min readNov 14, 2022

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Two tall twin towers with a cloudy background. Grayscale image

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Konstantinos Poulinakis
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Towards AI

GELU : Gaussian Error Linear Unit Code (Python, TF, Torch)

Code tutorial for GELU, Gaussian Error Linear Unit activation function. Includes bare python, Tensorflow and Pytorch code.

4 min readOct 17, 2022

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GELU : Gaussian Error Linear Unit Code (Python, TF, Torch)

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Konstantinos Poulinakis
in
Towards AI

Stop Using Grid Search! The Complete Practical Tutorial on Keras Tuner

Learn all the tricks and best practices of Keras Tuner. Optimize your Neural Networks and achieve better performance in less time.

10 min readSep 17, 2022

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Stop Using Grid Search! The Complete Practical Tutorial on Keras Tuner

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Konstantinos Poulinakis

How I tried to Predict the S&P500 Stock Price with Python and Machine Learning

Can Machine Learning detect price change signals from financial news ? Sentiment analysis can provide the solution. A tutorial

7 min readMay 24, 2022

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How I tried to Predict the S&P500 Stock Price with Python and Machine Learning

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Konstantinos Poulinakis
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CodeX

Stock News Sentiment Analysis with FinBERT Transformer.

Deep Learning model to automate financial news sentiment analysis and help you make stock price predictions using machine learning (ML).

4 min readApr 18, 2022

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Stock News Sentiment Analysis with FinBERT Transformer.

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Konstantinos Poulinakis
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Towards AI

Object Detection at the Edge with TF lite model-maker

Looking for an easy and fast way to train an object detection network on a custom dataset ? Tensorflow Lite Model Maker API is here!

7 min readSep 21, 2021

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Object Detection at the Edge with TF lite model-maker

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Konstantinos Poulinakis

Konstantinos Poulinakis

SWE@Deutsche Bank. Interested in Self Supervised and Multimodal Learning. https://github.com/Poulinakis-Konstantinos/Blogging-Journey

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