ryanchankh

If you are just using WePay for buying food, as a customer you don't pay anything extra. For store owners, let's say a small shop that sells breakfast buns, the money to pay through WePay is usually sent directly to the owner's WePay wallet.

I find adversarial attack super interesting. It opens up a field in machine learning where people questions the robustness of models. Adversarial examples exist because of many reasons, with data and weight space being high-dimensional as one.

IMO, the world needs to pay more attention to this, as we implement more and more AI applications. What worries me more is that we still don't really have a good solution to his problem. Pretty much every model that is defended can be attacked in another way.

My guess for now is that we would have to go all the way back, and question about the assumptions we are making about high dimensional spaces, and use a more rigorous way to prove theorems and lemma about AI systems, rather than experimentally saying the accuracy is high enough therefore it works.

Is Reuters a credible news source? I have seen many news from that site but don't have a good way to verify their reports...

HongKonger here. I have some friends in China posting similar anti-protest posts on WeChat social media. It's like the news they read has a completely different story than what it's being told in legitimate new sources. The problem of fake news does become very apparent, and I hope people in China can eventually gain awareness or at least start to question the validity of their news sources.