Sign in

Eun Cheol Choi

@euncheolchoi.bsky.social
478 followers 1.4K following 6 posts

PhD student at USC Annenberg; LLMs / CSS / SNA; @ HUMANS Lab (www.emilio.ferrara.name)

PostsRepliesMedia
Eun Cheol Choi @euncheolchoi.bsky.social · 26/06/2025
𝑾𝒊𝒍𝒍 𝑨𝑰 𝒕𝒂𝒌𝒆 𝒎𝒚 𝒋𝒐𝒃? It’s a question that keeps many of us up at night—and for good reason. Our new research maps labor market vulnerability in the age of AI with 100K job postings and 50K AI-related patents. (1/5)
Title page for our new paper, “Mapping Labor Market Vulnerability in the Age of AI”
120
Eun Cheol Choi @euncheolchoi.bsky.social · 15/06/2025
Keeping Track of AI Use Cases in the Newsroom generative-ai-newsroom.com/keeping-trac...
generative-ai-newsroom.com
Keeping Track of AI Use Cases in the Newsroom
A practical guide to how journalists are using generative AI and how to keep up
020
Reposted by Eun Cheol Choi
Luca Luceri @luceriluc.bsky.social · 01/05/2025
"Limited effectiveness of LLM-based data augmentation for COVID-19 misinformation stance detection" by @euncheolchoi.bsky.social @emilioferrara.bsky.social et al, presented by the awesome Chur at The Web Conference 2025 arxiv.org/abs/2503.02328
062
Reposted by Eun Cheol Choi
Manoel Horta Ribeiro @manoelhortaribeiro.bsky.social · 28/11/2024
Hot takes: - The benefits of easily accessible social media data usually outweigh the potential harms. - Some uses of (public) social media data are unethical/should be illegal, and we should target that. - We're better off having clear boundaries between public and private online spaces.
0122
Reposted by Eun Cheol Choi
Jason Koebler @jasonkoebler.bsky.social · 27/11/2024
An employee of Huggingface, a site of AI training datasets, made a dataset of a million Bluesky posts scraped simply because they could. It’s currently trending: www.404media.co/someone-made...
404media.co
Someone Made a Dataset of One Million Bluesky Posts for 'Machine Learning Research'
A Hugging Face employee made a huge dataset of Bluesky posts, and it’s already very popular.
581090463
Reposted by Eun Cheol Choi
Jay 🦋 @jay.bsky.team · 23/11/2024
Bluesky's firehose is a treasure trove of public data for researchers and developers, and it's completely free. Check out our developer docs: docs.bsky.app
docs.bsky.app
Bluesky Documentation | Bluesky
Explore guides and tutorials to the Bluesky API.
31878431517
Reposted by Eun Cheol Choi
Christoph Molnar @christophmolnar.bsky.social · 22/11/2024
Just realized BlueSky allows sharing valuable stuff cause it doesn't punish links. 🤩 Let's start with "What are embeddings" by @vickiboykis.com The book is a great summary of embeddings, from history to modern approaches. The best part: it's free. Link: vickiboykis.com/what_are_emb...
Book outlineOver the past decade, embeddings — numerical representations of
machine learning features used as input to deep learning models — have
become a foundational data structure in industrial machine learning
systems. TF-IDF, PCA, and one-hot encoding have always been key tools
in machine learning systems as ways to compress and make sense of
large amounts of textual data. However, traditional approaches were
limited in the amount of context they could reason about with increasing
amounts of data. As the volume, velocity, and variety of data captured
by modern applications has exploded, creating approaches specifically
tailored to scale has become increasingly important.
Google’s Word2Vec paper made an important step in moving from
simple statistical representations to semantic meaning of words. The
subsequent rise of the Transformer architecture and transfer learning, as
well as the latest surge in generative methods has enabled the growth
of embeddings as a foundational machine learning data structure. This
survey paper aims to provide a deep dive into what embeddings are,
their history, and usage patterns in industry.Cover image
22647101
Reposted by Eun Cheol Choi
David Rothschild @davmicrot.bsky.social · 22/11/2024
New Paper on Opportunities and risks of LLMs in survey research papers.ssrn.com/sol3/papers.... " Backed by both practical examples & academic literature, we identify areas for research and development, distinguishing between challenges related to survey methods & the tools used to deploy surveys"
papers.ssrn.com
Opportunities and risks of LLMs in survey research
Recent advances in the development of large language models (LLMs) bring both disruptive opportunities and underlying risks to survey research. LLMs' capabiliti
142
Reposted by Eun Cheol Choi
Daniel Vila @dvilasuero.hf.co · 21/11/2024
Interested in RLHF, DPO, LLM alignment? I've just created this list featuring awesome people like @natolambert.bsky.social . The list is the opposite of exhaustive; I've just joined some days ago 😅 go.bsky.app/MqRGAf2
108519
Reposted by Eun Cheol Choi
Shayan Sardarizadeh @shayan86.bsky.social · 14/11/2024
If you're keen to learn content verification for fact-checking and open source investigations, this is a step-by-step guide on how to verify images and videos that I posted a while ago. Once you familiarise yourself with reverse search, you'll become much better at spotting online misinformation.
39414165
Reposted by Eun Cheol Choi
Emilio Ferrara @emilioferrara.bsky.social · 12/11/2024
More #data2thepeople! #election2024 We just released a Twitter/X dataset of 22m+ tweets about the upcoming election! (Data will be routinely updated, keep an eye and spread the word!) Paper arxiv.org/abs/2411.00376 Data github.com/sinking8/usc...
arxiv.org
A Public Dataset Tracking Social Media Discourse about the 2024 U.S. Presidential Election on Twitter/X
In this paper, we introduce the first release of a large-scale dataset capturing discourse on $\mathbb{X}$ (a.k.a., Twitter) related to the upcoming 2024 U.S. Presidential Election. Our dataset compri...
0104
Reposted by Eun Cheol Choi
Emilio Ferrara @emilioferrara.bsky.social · 12/11/2024
#Data2thePeople! Pls reshare! Do you want a billion telegram posts?! You get data! You get data! You get data! Paper arxiv.org/abs/2410.23638 Data github.com/leonardo-bla... #election2024
arxiv.org
Unearthing a Billion Telegram Posts about the 2024 U.S. Presidential Election: Development of a Public Dataset
With its lenient moderation policies and long-standing associations with potentially unlawful activities, Telegram has become an incubator for problematic content, frequently featuring conspiratorial,...
13616
Reposted by Eun Cheol Choi
Emilio Ferrara @emilioferrara.bsky.social · 13/11/2024
Sharing my first Computational Social Science starter pack! Will grow with time, feel free to nominate and self nominate! go.bsky.app/CYmRvcK
619641
Reposted by Eun Cheol Choi
Brian C. Keegan, Ph.D. @brianckeegan.com · 14/11/2024
Here is a @github.com repo where I will share tutorial notebooks on how to retrieve and analyze data from @bsky.app @atproto.com Feedback, suggestions, and contributions are welcome! github.com/brianckeegan...
github.com
GitHub - brianckeegan/bluesky-datascience: Exploratory notebooks for data science using Bluesky data
Exploratory notebooks for data science using Bluesky data - brianckeegan/bluesky-datascience
1516168
Reposted by Eun Cheol Choi
Emilio Ferrara @emilioferrara.bsky.social · 14/11/2024
Ready for another Computational Social Science Starter Pack? Here is number 2! More amazing folks to follow! Many students and the next gen represented! go.bsky.app/GoEyD7d
347752