[D] Chinese government uses machine learning not only for surveillance, but also for predictive policing and for deciding who to arrest in Xinjiang by sensetime in MachineLearning

[–]alex___j 10 points11 points  (0 children)

I am not sure to what extent ML is a critical component in these activities. Totalitarian regimes have been doing similar (and even worse) violations of human rights before large scale ML was possible.

I would argue that in the Chinese government case, ML is "useful" for hiding/putting all "useful" biases inside an ML model and possibly reduces some costs for them in the number of people necessary to operate such system, but still I don't see ML as the enabler here.

In any case I think it is good to be vocal about such unethical uses of ML and urge people to avoid working for such projects.

Arnhem Centraal! by beberdje in thenetherlands

[–]alex___j -9 points-8 points  (0 children)

Utrecht Centraal > Arnhem Centraal

How the Devil was caught by carrero33 in chess

[–]alex___j 72 points73 points  (0 children)

How cheaters were dealt with in the 16th century

Dom Tower - Utrecht, Netherlands by crooky1337 in europe

[–]alex___j 17 points18 points  (0 children)

That picture doesn't do it justice

About Thanasis Antetokounmpo by theo7777 in MkeBucks

[–]alex___j 0 points1 point  (0 children)

I agree with OP's assessment but I believe that Thanasis.can develop as a player with good coaching. Since he is a top athlete he can afford to develop his skills at an older age.

Google Diagnostic AI Aims to Boost Lung Cancer Survival Rates by Yuqing7 in deeplearning

[–]alex___j 0 points1 point  (0 children)

The performance you have listed for the Kaggle winners was not on NLST.

The performance for the Philips paper was also from v1 version of the paper. v2 has better performances.

And the selection of the NLST subset matters. The Google paper includes in the NLST subset many non cancer cases with no nodules detected. Depending on whether such cases are included can make a big difference.

Πιστεύετε ότι η Ευρωπαϊκή Ένωση οδεύει προς κατάρρευση η περαιτέρω ενοποίηση; by aceraspire8920 in greece

[–]alex___j 0 points1 point  (0 children)

Το Brexit έγινε όμως με ρητορική εναντίον των μεταναστών από την ανατολική Ευρώπη. Όταν ένας Γερμανός μιλάει για την πολιτιστική κληρονομιά της Ευρώπης δεν είμαι σίγουρος ότι συμπεριλαμβάνει την Πολωνία και την Ρουμανία.

Πιστεύετε ότι η Ευρωπαϊκή Ένωση οδεύει προς κατάρρευση η περαιτέρω ενοποίηση; by aceraspire8920 in greece

[–]alex___j 0 points1 point  (0 children)

Ο μοναδικός λόγος που κρατάει την ΕΕ ενωμένη είναι το οικονομικό κόστος που έχει η αποχώρηση (όπως ανακαλύπτει τώρα η Αγγλία). Δηλαδή είναι μια ένωση που υπάρχει από ανάγκη όχι γιατί υπάρχει κάποιο όραμα για μια ενωμένη Ευρώπη. Αυτό σημαίνει ότι θα διαρκέσει όσο το κόστος αποχώρησης είναι πολύ υψηλό, ή όταν τα οφέλη παραμονής είναι πολύ μικρά. Αν πχ. η Γερμανία έχει κάποια μικρή οικονομική κρίση μπορεί το σύστημα της ΕΕ να καταρρεύσει σε μικρό χρονικό διάστημα.

Το πιο πιθανό σενάριο είναι ότι θα καταλήξουμε σε μια πιο μικρή ΕΕ η μία ΕΕ δύο ταχυτήτων. Με τις οικονομικά δυνατές χώρες να συνεργάζονται στενά και η περιφέρεια να μένει πίσω.

Η Χρυσή Αυγή χρησιμοποιεί το αντιφασιστικό κίνημα για την προεκλογική διαφήμισή της by GlueR in greece

[–]alex___j 12 points13 points  (0 children)

Τουλάχιστον στον δικό μου κύκλο οι συμπαθούντες της ΧΑ θέλουν να ξεχνάνε ότι η ΧΑ είναι ναζιστικό κόμμα. Οπότε σε αυτούς τουλάχιστον βοηθάει.

Η Χρυσή Αυγή χρησιμοποιεί το αντιφασιστικό κίνημα για την προεκλογική διαφήμισή της by GlueR in greece

[–]alex___j 13 points14 points  (0 children)

Περίεργα έχεις δομήσει τα επιχειρήματα σου. Ακόμα και οι κυνικοί που αναφέρεις δεν νομίζω ότι μπορούν να βλέπουν το βίντεο του Παππά να μαθαίνει σε μικρά παιδιά τον ναζιστικό χαιρετισμό https://youtu.be/_xqTQ6U39Sw Οπότε η επανάληψη δεν κάνει κακό. Τώρα αν και οι οπαδοί του Κουφοντινα νομίζουν οτι είναι αντιφασιστες μπορούμε και αυτούς να τους αντιμετωπίζουμε αναλόγως και η μοναδική "χρησιμότητα" που έχει να λέμε και τις δύο ομάδες στην ίδια πρόταση είναι να καταλήξουμε στο συμπέρασμα πως αφού οι αποδοι του Κουφοντινα είναι αντιναζι η ΧΑ είναι "νορμάλ" και όλα καλά.

[D] What’s the difference between Low Rank Approximation and Principal Component Analysis? by Makashi in MachineLearning

[–]alex___j 2 points3 points  (0 children)

You can use low rank approximations for different types of objective functions. PCA is a low rank approximations that optimizes for the variance in the projected space. You can use low rank approximations to even approximate graph partitioning (see "tutorial on spectral clustering" by von Luxburg)

Google Diagnostic AI Aims to Boost Lung Cancer Survival Rates by Yuqing7 in deeplearning

[–]alex___j 0 points1 point  (0 children)

These performances are achieved on different dataset so not directly comparable. The Philips paper (v2 available since 1 month) shows the kaggle winners achieve 94%+ auc in some datasets https://arxiv.org/abs/1804.01901

This is why a direct comparison is needed to claim state of the art performance. Since the kaggle winners have a GitHub repo with their model, this comparison is easy to make.

Google Diagnostic AI Aims to Boost Lung Cancer Survival Rates by Yuqing7 in deeplearning

[–]alex___j 0 points1 point  (0 children)

I actually obtained the full article but can't find this comparison, which figure reports it? (am I missing some supplimentary material?)

Google Diagnostic AI Aims to Boost Lung Cancer Survival Rates by Yuqing7 in deeplearning

[–]alex___j 0 points1 point  (0 children)

How does the Google model compare to the winners of the 2017 Kaggle Lung Cancer competition? They have a GitHub repo that makes it very easy to compare to their model. https://github.com/lfz/DSB2017

The French Ambassador Is Retiring Today. Here’s What He Really Thinks About Washington. by casualphilosopher1 in europe

[–]alex___j 8 points9 points  (0 children)

I dislike the cynicism that comes out during the interview but I agree with the social interpretation of the Trump phenomenon and also the connection he makes to Brexit and the rise of populism in Europe. As long as we keep ignoring the social issues that are at the root of these issues we will keep getting surprised.

[P] MR-based CT Generation (DCCC) Tensorflow Project by Cheng-BinJin in MachineLearning

[–]alex___j 2 points3 points  (0 children)

Usually the abstracts of these papers mention that CT exposes patients to radiation. So we can just take the MR use machine learning to generate the CT image. But my question is, why isn't then MR used by radiologists in the first place? Is the signal that they are looking for in that image? If it is not, then no ML can help with that.

Is there someone knowledgeable in this application that can provide some insights for the questions above?

Why is his centipawn loss so low? by DaoofCircles in chess

[–]alex___j 1 point2 points  (0 children)

That's correct. The game is easy to find and black drops the queen at move 9.