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I’m sure everybody who worked with Python and a PostgreSQL database is familiar or definitely heard about the psycopg2 library. It is the most popular PostgreSQL database adapter for the Python programming language. In my work, I come in contact with this library every day and execute hundreds of automated statements. As always, I try to improve my code and execution speed, because, in the cloud, time is money. The longer your code runs...
Overview Lately, I worked a lot with the Azure Cloud. Overall I have to say Azure offers a lot but is still not on the same level as its hardest competitors (AWS, Google). One thing that caught my eye is the compatibility of certain programming languages. Azure supports a few different languages (C#, JavaScript, Java, Python, etc.) but the supported features for these languages differ a lot. I think Azure Cloud is really great for...
  Support Vector Machine (SVM) is a widely used supervised learning algorithm for classification and regression tasks. It is mostly exploited for classification problems. The points of different classes are separated by a hyperplane, and this hyperplane must be chosen in such a way that the distances from it to the nearest data points on each side should be maximal. Support Vector Machine has some advantages. The first one is that SVM...
Der erste Schritt, um eine Stelle als Data Scientist zu bekommen, ist derselbe wie in jedem anderen Beruf: Erstellen Sie einen überzeugenden Lebenslauf! Obwohl es im Bereich der Data Science  mehr offene Stellen gibt als je zuvor , ist es wichtig, einen aussagekräftigen und passenden Lebenslauf zu haben, um den gewünschten Job zu bekommen. Dieser Blog gibt Ihnen neun Tipps, um Ihre Chancen zu verbessern, die von Ihnen...
The first step to land a job as a data scientist is the same as in any other profession: create a compelling CV! Although there are more open positions in the field of data science  than ever before  it is important to have a strong and suitable CV in order to land the job you want. This post gives you nine tips in order to improve your chances to find the data science job you want. 1. Include achievements, not just jobs...
Use your extra time at home (and your data skills) for a good cause: Check out the  Kaggle  COVID-19 Open Research Dataset Challenge. In response to the COVID-19 pandemic, the White House and a coalition of leading research groups have prepared the COVID-19 Open Research Dataset (CORD-19). This dataset is a resource of over 29,000 scholarly articles, including over 13,000 with full text, about COVID-19, SARS-CoV-2, and...
Today, data science specialists are among the most sought-after in the labor market. Being able to find significant insights in a huge amount of information, they help companies and organizations to optimize the structure's work.  The field of data science is rapidly developing and the demand for talent is changing. We use job offerings to analyze the current demand for talent. After performing a first analysis in 2017 , this article...
Accessing datasets in a structured form through an API can often simplify the life of a data analyst - especially if the same data series are used repeatedly. Unfortunately, many public data sources such as the Federal Statistical Office (BFS) do not provide data access through an API ( STAT-TAB makes life a bit easier, but is not fully automated). While opendata.swiss offers a great way to explore available public...
For the past few years, tasks involving text and speech processing have become really hot-trendy. Among the various researches belonging to the fields of Natural Language Processing and Machine Learning, sentiment analysis ranks really high. Sentiment analysis allows identifying and getting subjective information from the source data using data analysis and visualization, ML models for classification, text mining and analysis. This helps...
Introduction Nowadays PostgreSQL is probably one of the most powerful relational databases among the open-source solutions. Its functional capacities are no worse than Oracle’s and definitely way ahead of the MySQL. So if you are working on apps using Python, someday you will face the need of working with databases. Luckily, Python has quite a wide amount of packages that provide an easy way of connecting and using databases. In...
The way other people think about one or another product or service has a big impact on our everyday process of making decisions. Earlier, people relied on the opinion of their friends, relatives, or products and services reposts, but the era of the Internet has made significant changes. Today opinions are collected from different people around the world via reviewing e-commerce sites as well as blogs and social nets. To transform gathered...
Among the variety of open source relational databases, PostgreSQL is probably one of the most popular due to its functional capacities. That is why it is frequently used among all the areas of work where databases are involved. In this article, we will go through connection and usage of PostgreSQL in R. R is an open source language for statistical and graphics data analysis providing scientists, statisticians, and academics powerful tools...