Ofir Reich

133 posts

Ofir Reich banner
Ofir Reich

Ofir Reich

@OfirReich

Data Scientist. Africa enthusiast.

Katılım Mart 2017
47 Takip Edilen197 Takipçiler
Ofir Reich
Ofir Reich@OfirReich·
@SpencrGreenberg Classifying images to cats vs. dogs - which is "positive"? I favor naming the classes explicitly. "False Dog", "False cat".
English
0
0
0
22
Spencer Greenberg 🔍
Spencer Greenberg 🔍@SpencrGreenberg·
Statistics is hard enough for most people as it is; please stop using the phrases "type I" and "type II" errors. Unless, of course, your goal is to confuse people - in which case, congrats - you've succeeded! Just say "false positive" and "false negative" instead.
English
78
167
3.3K
212.6K
Ofir Reich
Ofir Reich@OfirReich·
Implications. Model accuracy is not enough. Field evaluation is necessary to determine real-world impact on existing system. Other ICT solutions to lubricate enforcement action and collaboration within the department may be beneficial. Paper again: dl.acm.org/doi/abs/10.114…
English
0
0
1
29
Ofir Reich
Ofir Reich@OfirReich·
How come no treatment effect? A) Overfitting to proxy-labels. Model predicts firms already on a trajectory to be canceled, e.g. haven’t filed returns for months. B) Lacking department enforcement. Firms non-existent in inspections, likely not canceled more than 1 year later.
Ofir Reich tweet media
English
1
0
1
43
Susanna Berkouwer
Susanna Berkouwer@BerkouwerS·
The letter combination "ough" is pronounced in 6 different ways in these 6 words: Bough Ought Though Through Cough Rough 1) Are there any other pronunciations of "ough"? 2) Is there any other 3 or 4 letter combination with more pronunciations?
English
5
1
14
8.2K
John "Dare Mathy Things" Gilbert 🪐 🚀 🛰🇺🇸 🇺🇦
If the rocket which landed in Poland (red circle) was the result of incorrect targeting, the operator may have input the latitude of a target in Kyiv (blue), and the longitude of one in Lviv (blue). I wonder if other missiles have ever landed at the other red circle?
John "Dare Mathy Things" Gilbert 🪐 🚀 🛰🇺🇸 🇺🇦 tweet media
English
55
152
719
0
Ofir Reich
Ofir Reich@OfirReich·
Then read this page for examples and how to use: plotly.com/python/plotly-… Advantages: - Great integration with pandas - Interactive plots - Lots of plot types - Great interface for multiple dimensions: small multiples, colors, markers, sizes, dashes.
English
0
0
0
0
Ofir Reich
Ofir Reich@OfirReich·
Using matplotlib? Move to @plotly express right now. ! pip install plotly import plotly import plotly.express as px plotly.io.renderers.default = 'colab' plotly.io.templates.default = "plotly_white" pd.options.plotting.backend = "plotly"
English
1
0
0
0
Ofir Reich
Ofir Reich@OfirReich·
Come work with me to use ML to fight tax evasion in India. Great position to get hands-on experience with data science and Machine Learning, for early-mid career Indian nationals.
J-PAL South Asia@JPAL_SA

#HIRING: Data Research Associate to work w/ @aprajitmahajan & @shekhar_m Apply to leverage #DataScience & #MachineLearning skills for a project which aims to iteratively detect bogus firms, working closely w/ a state commercial tax department: j-p.al/dra-ml #EconJobs

English
0
0
1
0
Ofir Reich
Ofir Reich@OfirReich·
Come work with me on a cool and important data project in India! If you're Indian and want to learn data science & ML hands-on, this could be a good opportunity for you. Apply!
J-PAL South Asia@JPAL_SA

#HIRING: Data Research Associate to work w/ @aprajitmahajan & @shekhar_m Apply to leverage #DataScience & #MachineLearning skills for a project which aims to iteratively detect bogus firms, working closely w/ a state commercial tax department: j-p.al/dra-ml #EconJobs

English
0
0
2
0
Ofir Reich retweetledi
Ethan Mollick
Ethan Mollick@emollick·
This 1881 map is an amazing work that shows the travel time from London to... everywhere. Not only is it one of the first isochronic maps (marking distances that could be traveled in the same time) but it drew on steamship tables, post office records, and private voyage records.
Ethan Mollick tweet media
English
28
378
1.8K
0
Ofir Reich retweetledi
Shekhar
Shekhar@shekhar_m·
Exciting opportunity for folks interested in having an impact at the intersection of public policy and machine learning! As an additional benefit, you also get to work with amazingly kind mentors in @aprajitmahajan, @OfirReich, and me ;). Please share!
Aprajit Mahajan@aprajitmahajan

Hi! Looking for a RA (J-PAL South Asia) for a project using machine learning to improve tax systems (India based). Application link tinyl.io/482s. Pls. contact suddhasatwa.bhattacharya@ifmr.ac.in for any questions. Thanks!

English
2
1
4
0
Ofir Reich
Ofir Reich@OfirReich·
I thoroughly enjoy @bryan_caplan's books: The Myth of The Rational Parent The Case Against Voters Selfish Reasons to Open Borders: Why Immigrants are Less Work and More Fun Than You Think. Sheepskin: The Science and Ethics of Education
English
0
0
0
0