logoalt Hacker News

mekdoonggitoday at 2:53 PM1 replyview on HN

Anecdotally my feed dramatically shifted. My politics are very leftwing, and prior to the transfer virtually every video was discourse on ICE. Following the transfer, I get content that is all over the place. At one point, I got 8-9 tiktoks in a row of obviously bot-created rightwing text.

At least on the surface level, I could believe this is just a full algorithm reset and they are having problems with it. But even after other algorithm resets that I believe I've experienced, Tiktok figured it out extremely quickly. If this continues, I will believe in the heavyhanded censorship theory.


Replies

telotortiumtoday at 4:02 PM

As a former employee in TikTok US Data Services, the division that was stated working to separate the US TikTok service and infrastructure, I wouldn’t be so quick to dismiss the algorithm reset theory, because the reset this time is qualitatively unlike the others.

Since 2020, when the first Trump administration attempted to ban TikTok, work has been ongoing to separate out the TikTok US business in all aspects from the parent company Bytedance. Setting up dedicated infrastructure for US users was already accomplished by 2023 for the most part, and this included the restriction that US user data couldn’t be used to train or otherwise influence non-US user operations.

However, there were a few major caveats. First, all the actual videos, at least if they’re public, were considered to be Bytedance data, even those created by US users (although the actual user intent signals - likes, watch behavior, and the like, were considered to be US user data). This allowed them to be used to train the main Bytedance-owned algorithm. Second, the Bytedance-trained algorithm continued to form the basis of the algorithm to serve US users. At least when I was there, US user data was used to tune the algorithm for US users, but the algorithm was not necessarily trained from scratch only on US user data in practice.

One of Bytedance’s main conditions for the TikTok US sale has always been that they own the algorithm (both the code and the models) and would not transfer it to the US, so this was definitely a foreseeable issue. With the chaos of the TikTok Us divestment between the Biden and Trump administrations, though, I suspect that it was hard to hire and retain ML engineers that could build a proper replacement for the algorithm in time for the divestment, let alone build one that matches the behavior of the previous algorithm.

If the algorithm is separated between US and non-US as strictly as the TikTok US Data Services mission always aimed for, then TikTok for US users is in many respects a new service entirely that shares the same UI and features. I also don’t know how US users get trained on non-US content, or if they’re even exposed, nor if any other countries use the US algorithm. So this change in content may last at least into the medium term, if not permanently. The question will be if you start seeing more left-wing anti-ICE content in the coming weeks or months.

show 1 reply