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Boris Gorelik

Data science, machine learning & data visualization consultant and lecturer

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Epitaphs in the Graveyard of Mathematics

Epitaphs in the Graveyard of Mathematics

Posted on December 2, 2017December 4, 20171 Comment on Epitaphs in the Graveyard of Mathematics

The fastest way to get first N items in each group of a Pandas DataFrame

Posted on November 27, 2017November 26, 2017No Comments on The fastest way to get first N items in each group of a Pandas DataFrame
How to make a graph less readable? Rotate the text labels

How to make a graph less readable? Rotate the text labels

Posted on November 23, 2017November 23, 20171 Comment on How to make a graph less readable? Rotate the text labels

On machine learning, job security, professional pride, and network trolling

Posted on November 21, 2017November 21, 2017No Comments on On machine learning, job security, professional pride, and network trolling

Interactive Network Visualization in Python with NetworkX and PyQt5 Tutorial

Posted on November 20, 20171 Comment on Interactive Network Visualization in Python with NetworkX and PyQt5 Tutorial

Which of these two pictures should I choose for my gravatar?

Posted on November 16, 2017November 10, 2017No Comments on Which of these two pictures should I choose for my gravatar?
Another set of ruthless critique pieces

Another set of ruthless critique pieces

Posted on November 15, 2017September 8, 20192 Comments on Another set of ruthless critique pieces
We’re Reading About Simplifying Without Distortion and Adversarial Image Classification

We’re Reading About Simplifying Without Distortion and Adversarial Image Classification

Posted on November 15, 2017No Comments on We’re Reading About Simplifying Without Distortion and Adversarial Image Classification

Good information + bad visualization = BAD

Posted on November 14, 2017November 8, 2017No Comments on Good information + bad visualization = BAD
What are the best practices in planning & interpreting A/B tests?

What are the best practices in planning & interpreting A/B tests?

Posted on November 13, 2017November 8, 20171 Comment on What are the best practices in planning & interpreting A/B tests?

How to make a racist AI without really trying (a reblog)

Posted on November 10, 2017No Comments on How to make a racist AI without really trying (a reblog)

Please leave a comment on this post 

Posted on November 9, 2017September 4, 201810 Comments on Please leave a comment on this post 

Data Science or Data Hype?

Posted on November 8, 2017November 8, 2017No Comments on Data Science or Data Hype?
Do you REALLY need the colors?

Do you REALLY need the colors?

Posted on November 7, 2017November 8, 2017No Comments on Do you REALLY need the colors?
Numpy vs. Pandas: functions that look the same, share the same code but behave differently

Numpy vs. Pandas: functions that look the same, share the same code but behave differently

Posted on November 6, 2017November 6, 2017No Comments on Numpy vs. Pandas: functions that look the same, share the same code but behave differently
When scatterplots are better than bar charts, and why?

When scatterplots are better than bar charts, and why?

Posted on November 5, 2017No Comments on When scatterplots are better than bar charts, and why?
Because you can — a new series of data visualization rants

Because you can — a new series of data visualization rants

Posted on November 1, 2017November 3, 2017No Comments on Because you can — a new series of data visualization rants

Although it is easy to lie with statistics, it is easier to lie without

Posted on October 30, 2017October 25, 2017No Comments on Although it is easy to lie with statistics, it is easier to lie without
Gartner: More than 40% of data science tasks will be automated by 2020. So what?

Gartner: More than 40% of data science tasks will be automated by 2020. So what?

Posted on October 25, 2017October 26, 2017No Comments on Gartner: More than 40% of data science tasks will be automated by 2020. So what?
Posted on October 24, 2017No Comments on
Who doesn’t like some merciless critique of others’ work?

Who doesn’t like some merciless critique of others’ work?

Posted on October 23, 2017October 15, 2017No Comments on Who doesn’t like some merciless critique of others’ work?
Why is it (almost) impossible to set deadlines for data science projects?

Why is it (almost) impossible to set deadlines for data science projects?

Posted on October 19, 2017October 19, 20171 Comment on Why is it (almost) impossible to set deadlines for data science projects?
What is the best thing that can happen to your career?

What is the best thing that can happen to your career?

Posted on October 19, 2017October 26, 20172 Comments on What is the best thing that can happen to your career?
We’re Reading About Bias in AI, SpaceX, and More

We’re Reading About Bias in AI, SpaceX, and More

Posted on October 18, 2017No Comments on We’re Reading About Bias in AI, SpaceX, and More
Can the order in which graphs are shown change people’s conclusions?

Can the order in which graphs are shown change people’s conclusions?

Posted on October 17, 2017October 15, 20171 Comment on Can the order in which graphs are shown change people’s conclusions?

Advice for aspiring data scientists and other FAQs — Yanir Seroussi

Posted on October 15, 2017October 26, 2017No Comments on Advice for aspiring data scientists and other FAQs — Yanir Seroussi

How to be a better teacher?

Posted on October 12, 2017October 26, 2017No Comments on How to be a better teacher?
What you need to know to start a career as a data scientist

What you need to know to start a career as a data scientist

Posted on October 11, 2017October 26, 20171 Comment on What you need to know to start a career as a data scientist
Graffiti from Chișinău, Moldova

Graffiti from Chișinău, Moldova

Posted on October 10, 2017October 10, 20171 Comment on Graffiti from Chișinău, Moldova

Identifying and overcoming bias in machine learning

Posted on October 8, 2017No Comments on Identifying and overcoming bias in machine learning
Before and after — the Hebrew holiday season chart

Before and after — the Hebrew holiday season chart

Posted on October 8, 2017October 8, 2017No Comments on Before and after — the Hebrew holiday season chart
Pseudo-rehearsal: A simple solution to catastrophic forgetting for NLP

Pseudo-rehearsal: A simple solution to catastrophic forgetting for NLP

Posted on October 2, 2017February 23, 2020No Comments on Pseudo-rehearsal: A simple solution to catastrophic forgetting for NLP
16-days work month — The joys of the Hebrew calendar

16-days work month — The joys of the Hebrew calendar

Posted on September 27, 20171 Comment on 16-days work month — The joys of the Hebrew calendar
On data beauty and communication style

On data beauty and communication style

Posted on August 18, 2017October 15, 20171 Comment on On data beauty and communication style

Accepting payments on a WordPress.com site? Easy!

Posted on August 18, 2017August 18, 2017No Comments on Accepting payments on a WordPress.com site? Easy!
On procrastination

On procrastination

Posted on August 17, 2017October 4, 20191 Comment on On procrastination
Fashion, data, science

Fashion, data, science

Posted on August 16, 2017August 16, 2017No Comments on Fashion, data, science

Anomaly detection in time series — now the video

Posted on August 14, 2017December 16, 20171 Comment on Anomaly detection in time series — now the video
Эээх-ухнем. Как не забросить свой блог

Эээх-ухнем. Как не забросить свой блог

Posted on August 12, 2017August 14, 2017No Comments on Эээх-ухнем. Как не забросить свой блог

This Week in Data Reading

Posted on July 26, 2017No Comments on This Week in Data Reading

Avoiding being a ‘trophy’ data scientist

Posted on July 24, 2017No Comments on Avoiding being a ‘trophy’ data scientist
A successful failure

A successful failure

Posted on July 23, 2017July 23, 20171 Comment on A successful failure
The first lesson of the data visualization course is available

The first lesson of the data visualization course is available

Posted on July 7, 2017July 8, 2017No Comments on The first lesson of the data visualization course is available

Correction about the course start date

Posted on June 27, 2017June 30, 2017No Comments on Correction about the course start date
I have created an online data visualization course

I have created an online data visualization course

Posted on June 26, 2017July 7, 20171 Comment on I have created an online data visualization course

Data is NOT the new gold

Posted on June 18, 20171 Comment on Data is NOT the new gold

This is the approach behind “minimal viable product”. It is also valid for data science solutions.

Posted on June 13, 2017No Comments on “Deliver first, improve later”
Time Series Analysis: When “Good Enough” is Good Enough

Time Series Analysis: When “Good Enough” is Good Enough

Posted on June 12, 2017December 16, 20171 Comment on Time Series Analysis: When “Good Enough” is Good Enough

The strange loop in deep learning — a recommended reading

Posted on June 8, 2017No Comments on The strange loop in deep learning — a recommended reading
Don’t study data science as a career move; you’ll waste your time!

Don’t study data science as a career move; you’ll waste your time!

Posted on May 29, 2017January 10, 202010 Comments on Don’t study data science as a career move; you’ll waste your time!
Come to PyData at the Bar Ilan University to hear me talking about anomaly detection

Come to PyData at the Bar Ilan University to hear me talking about anomaly detection

Posted on May 24, 2017December 16, 2017No Comments on Come to PyData at the Bar Ilan University to hear me talking about anomaly detection
This Week in Data Reading (and Watching!)

This Week in Data Reading (and Watching!)

Posted on May 17, 2017No Comments on This Week in Data Reading (and Watching!)
This Week in Data Reading

This Week in Data Reading

Posted on April 18, 2017No Comments on This Week in Data Reading
Welcoming New Colleagues — a Data-Based Story

Welcoming New Colleagues — a Data-Based Story

Posted on April 12, 2017No Comments on Welcoming New Colleagues — a Data-Based Story
Chart legends and the Muttonchops

Chart legends and the Muttonchops

Posted on April 12, 2017October 31, 20174 Comments on Chart legends and the Muttonchops
Near Kibbutz Hulda, Israel

Near Kibbutz Hulda, Israel

Posted on December 7, 2016No Comments on Near Kibbutz Hulda, Israel
Evolution of a Plot: Better Data Visualization, One Step at a Time

Evolution of a Plot: Better Data Visualization, One Step at a Time

Posted on October 25, 2016April 12, 2017No Comments on Evolution of a Plot: Better Data Visualization, One Step at a Time
16-days work month — The joys of the Hebrew calendar

16-days work month — The joys of the Hebrew calendar

Posted on October 5, 2016No Comments on 16-days work month — The joys of the Hebrew calendar

Interview with a WordPress.com data scientist

Posted on May 13, 2016May 13, 2016No Comments on Interview with a WordPress.com data scientist
A problem shared is a problem halved

A problem shared is a problem halved

Posted on March 30, 2016August 22, 20165 Comments on A problem shared is a problem halved
Comparing the incomparable — expanding the time map concept

Comparing the incomparable — expanding the time map concept

Posted on December 22, 2015December 31, 20152 Comments on Comparing the incomparable — expanding the time map concept

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