How to create Node.js or client-side models that aren’t too CPU-expensive—while still making the most of Python’s libraries — Models are very powerful tools to be used in several web applications. The general approach is to make them accessible by using REST APIs. In this article, I’ll talk about a model that can be created in Python and then deployed in pure Javascript. Why Javascript? Machine learning models are often created…

Some advantages of remote work — Remote work is not just a simple idea you can implement into your business with no effort and start making more profit. It is an opportunity that, when brought to life, will allow you to benefit from a number of advantages that you never thought possible. …

How to visualize the predictive power of a numerical feature — Measuring the predictive power of some feature in a supervised machine learning problem is always a hard task to accomplish. Before using any correlation metrics, it’s important to visualize whether a feature is informative or not. In this article, we’re going to apply data visualization to a classification problem. How does a numerical feature affect a categorical target?

An overview of the two most used tools for remote working — Work from home jobs always has an edge to them when it comes to team meetings and group chats. Because unlike office environment you are unable to communicate with your co-workers in random sittings like moving in an elevator together, over a coffee break, etc. In remote work, the success…

A method to calculate the probability that a point is an outlier — Outliers are a great problem for a data scientist. They are “strange points” in a dataset that must be checked in order to verify whether they are errors or real phenomena. There are several algorithms that can help us detect outliers, but we sometimes need to measure the probability that…

Some thoughts about how useful SQL is in data analysis — Data science is a wonderful job because it mixes several different skills. However, while data scientists usually follow (and, possibly, create) innovation, there are some “good old” skills that are still useful for this kind of job. One of such skills is SQL. Are you really working with Big Data? The buzzword “Big Data” has been around…

Rebalancing your financial portfolio can be useful to avoid volatility spikes — Portfolio management is a very useful tool for any individual or corporate investor. One common practice is to rebalance a portfolio according to some schedule or rule. Let’s see what it means. What is portfolio rebalancing? Let’s assume you want to invest 60% of your money in stocks and 40% in bonds. After some…

My personal portfolio after pandemics — Covid-19 and the recent war in Ukraine have given strong slaps to financial markets. As individual investors, we have to defend our money from such situations. Here is the portfolio I have studied for my savings. The fundamental ingredients of a financial portfolio A good financial portfolio must be made by these fundamental items: Cash Bonds Stocks …

A few words about this social revolution — Remote working is not a new topic, but it has become more and more important during pandemics. Can it really help startups? Yes, I think so. I’ve been experimenting with remote working during the pandemics years. It was the first time I tried it because my company had several restrictions…