Detecting bias in algorithms used to disseminate information in social networks and mitigating it using multiobjective optimization
Abstract. Social connections are conduits through which individuals communicate, information propagates, and diseases spread. Identifying individuals who a
How fair are the algorithms that decide who gets information online? Our new paper in PNAS Nexus shows that maximization algorithms, the ones used to pick โinfluencersโ in social networks, unintentionally deepen inequality.
๐ง Sekara, Dotu, Cebrian, Moro & Garcรญa-Herranz
๐ doi.org/10.1093/pnas...
31.10.2025 13:39 โ ๐ 32 ๐ 13 ๐ฌ 1 ๐ 0
This month, no colloquium but a special session about careers in network science! Join us and an all-star panel on October 29. Register here for a Zoom link: iu.zoom.us/webinar/regi...
13.10.2025 20:45 โ ๐ 25 ๐ 19 ๐ฌ 0 ๐ 1
Here is a โblame-praise curveโ for the percentage of household chores done by husbands
People think husbands are blameworthy if they do 20%, but praiseworthy if they do 40% (!)
Perceived average is above 40%, so people think below average is still praiseworthy
[Thread]
22.08.2025 17:53 โ ๐ 20 ๐ 5 ๐ฌ 3 ๐ 0
You: pornbots keep randomly following me on Bluesky
Me, an intellectual: pornbots are citing my books on Google Scholar
25.07.2025 07:11 โ ๐ 1649 ๐ 320 ๐ฌ 6 ๐ 16
Inflation
10.08.2025 18:52 โ ๐ 0 ๐ 0 ๐ฌ 0 ๐ 0
4-panel comic. (1) [Person 1 with ponytail flanked by person with short hair and another person speaking into microphone at podium] PERSON 1: In the early 2010s, researchers found that many major scientific results couldnโt be reproduced. (2) PERSON 1: Over a decade into the replication crisis, we wanted to see if todayโs studies have become more robust. (3) PERSON 1: Unfortunately, our replication analysis has found exactly the same problems that those 2010s researchers did. (4) [newspaper with image of speakers from previous panels] Headline: Replication Crisis Solved
Replication Crisis
xkcd.com/3117/
21.07.2025 23:54 โ ๐ 4882 ๐ 656 ๐ฌ 28 ๐ 30
RFK Jr. says US wonโt donate to global vaccine effort
Kennedy ripped into Gavi, the Vaccine Alliance, in a video address at its pledging summit.
This is a travesty & a nightmare. The US was a founder of @gavi.org. It lowers global vaccine costs, has vaccinated 1B children, & averted 19M deaths. This pull out will cost 100s of thousands of children's lives a year - and RFK Jr will be personally responsible.
www.politico.com/news/2025/06...
25.06.2025 13:59 โ ๐ 6700 ๐ 3285 ๐ฌ 392 ๐ 405
Donโt eat your receipts
24.06.2025 19:39 โ ๐ 0 ๐ 0 ๐ฌ 0 ๐ 0
Qing Chang will present research on โUpward mobility in the green sector for frontline fossil fuel workersโโjoined by Michaรซl Aklin, Morgan Frank, and Shanti Gamper-Rabindran.
Register NOW to join live seminar on Zoom:
lnkd.in/gAhgfjMq
29.05.2025 14:54 โ ๐ 0 ๐ 0 ๐ฌ 0 ๐ 0
The EO has to be interpreted in light of the (decades long) Republican attack on science.
This has nothing to do with improving science. They're using legitImate criticism from within science to (ironically) decrease the credibility of science. They then have no obligation to listen to scientists.
24.05.2025 12:26 โ ๐ 142 ๐ 53 ๐ฌ 10 ๐ 3
Exclusive: NSF faces radical shake-up as officials abolish its 37 divisions
Changes seen as a response to presidential directives on what research to fund
Exclusive: National Science Foundation staff were told today that the agencyโs 37 divisionsโacross all eight directoratesโare being abolished and the number of programs within those divisions will be drastically reduced.
08.05.2025 23:35 โ ๐ 2112 ๐ 1540 ๐ฌ 155 ๐ 441
The NSF building, photo courtesy of Duke University
๐ข Today I was supposed to be in DC, highlighting what the NSF Social, Behavioral, & Economic Sciences delivers to US taxpayers. NSF had one of the highest returns on investment (ROIs) of federal grantors ๐๐ป (1) and NSF SBE funded 63% of US social and psychological science research (2). ๐งต
29.04.2025 13:58 โ ๐ 175 ๐ 113 ๐ฌ 4 ๐ 6
Exclusive: NSF stops awarding new grants and funding existing ones
US science funder also plans to screen grant applications for compliance with โagency prioritiesโ.
BREAKING: NSF has frozen all grant funding, as of yesterday. It's unclear when they will resume funding awards, or why the pause has been put in place. www.nature.com/articles/d41...
01.05.2025 22:58 โ ๐ 1319 ๐ 974 ๐ฌ 39 ๐ 174
๐จNew WP๐จ
Using GPT4 to persuade participants significantly reduces climate skepticism and inaction
-Sig more effective than consensus messaging
-Works for Republicans
-Evidence of persistence @ 1mo
-Scalable!
PDF: osf.io/preprints/ps...
Try the bot: www.debunkbot.com/climate-change
Hereโs how ๐
18.04.2025 13:02 โ ๐ 123 ๐ 42 ๐ฌ 8 ๐ 10
This, @jakemgrumbach.bsky.social might be the dumbest take I've ever seen on social media. "Moderate their position on Canada?" WTF?!
If the Republican party started believing in levitation, would you ask Democrats to moderate their position on gravity?
02.04.2025 15:12 โ ๐ 96 ๐ 14 ๐ฌ 15 ๐ 5
Policy, workers, and firms who make decisions with any one study's exposure scores are likely to get it wrong! These studies employ different definitions of "AI" and perform variably depending on the US region or sector. User beware!
03.04.2025 18:28 โ ๐ 1 ๐ 0 ๐ฌ 0 ๐ 0
So which exposure studies are the most predictive of job loss? Individually, exposure scores from Frey/Osborne, Brynjolfsson, Felten et al, and the recent Eloundou et al studies are not predictive of unemployment risk. However, when combined, they are very predictive!
03.04.2025 18:28 โ ๐ 1 ๐ 0 ๐ฌ 1 ๐ 0
How could we even test this? Commonly-used employment and wage data don't directly capture job loss. So we instead use data from each state's unemployment insurance program to calculate workers' unemployment risk based on their occupation and local labor market
03.04.2025 18:28 โ ๐ 2 ๐ 0 ๐ฌ 1 ๐ 0
AI exposure scores can predict workers' unemployment risk! While individual AI exposure models aren't predictive of job losses, combining them creates a powerful predictive tool. #AIandJobs #FutureOfWork
New work with @yyahn.bsky.social & @estebanmoro.bsky.social academic.oup.com/pnasnexus/ad...
03.04.2025 18:28 โ ๐ 5 ๐ 2 ๐ฌ 1 ๐ 0
Perfection
20.03.2025 22:21 โ ๐ 19498 ๐ 2533 ๐ฌ 855 ๐ 154
Essay | Theย Cleanย Energyย Revolution Is Unstoppable
The Trump administration is determined to promote fossil fuels, but the economic and technological forces driving solar, wind and other sources are now too powerful to resist.
I'm in the @wsj.com with @ericbeinhocker.bsky.social explaining the #CleanEnergy revolution is unstoppable. Despite the Trump administration's determination to promote fossil fuels, the economic and technological forces driving green energy are too powerful to resist.
www.wsj.com/business/ene...
03.03.2025 12:14 โ ๐ 19 ๐ 6 ๐ฌ 2 ๐ 0
YouTube video by Northwestern Institute on Complex Systems
Wed@NICO - 2/26/25 - Morgan Frank
Next was an amazing talk by @mrfrank.bsky.social on challenges with determining how susceptible jobs are to automation at @nicoatnu.bsky.social. Frank presents a compelling network-oriented approach for modeling automation shocks. Highly recommend www.youtube.com/watch?v=7p0L... (7/8)
27.02.2025 01:40 โ ๐ 2 ๐ 2 ๐ฌ 1 ๐ 0
An event flyer for a Wednesdays @ NICO talk on 2/26/25 with Morgan Frank of the University of Pittsburgh.
#AI has evolved and now challenges our understanding of skills and careers. This Wednesday, we are thrilled to host @mrfrank.bsky.social to explore "AI, Complexity, and the Future of Work". Join us in person in Chambers Hall or via Zoom. #WedatNICO
๐๏ธ Wed 2/26 at 12pm US Central
๐ bit.ly/WedatNICO
25.02.2025 21:48 โ ๐ 3 ๐ 1 ๐ฌ 0 ๐ 0
๐จ Is AI democratising creativityโor racing to the bottom?
๐๏ธ This week I talked with @mrfrank.bsky.social about how AI is reshaping creative industries.
๐ข Listen now: [Podcast Link]
What do you thinkโis AI helping or hurting creative professionals? ๐
#AIart #TechAndArt #GenerativeAI #AIethics
12.02.2025 18:23 โ ๐ 1 ๐ 1 ๐ฌ 0 ๐ 0
AI & Unemployment with Dr Morgan Frank
How will AI reshape jobs, wages, and economic resilience?
I had a great time on the Narrow Window podcast discussing AI and the future of work. We correctly identified that LLMs run on your laptop were imminent just weeks before DeepSeek R1
open.substack.com/pub/thenarro...
11.02.2025 17:18 โ ๐ 2 ๐ 0 ๐ฌ 0 ๐ 0
In a fast-changing economy, we need dynamic solutions for communicating and verifying our skills, knowledge, and abilities. Come have an early look at our solution! @youngjinyoo.bsky.social @kerrilemoie.bsky.social
28.01.2025 16:00 โ ๐ 2 ๐ 1 ๐ฌ 0 ๐ 0
The Vermont Complex Systems Institute at the University of Vermont is a post-disciplinary team working on real-world, data-rich, meaningful complex systems problems of all kinds. https://vermontcomplexsystems.org/
Postdoc with the Stanford Tech Impact and Policy Center. Formerly IU / Observatory on Social Media.
Computational social science, human-AI interaction, social media, trust and safety, etc.
๐งจ matthewdeverna.com
Computational Social Scientist | Science of data and innovation | @UMich @umsi PhD candidate | ex-@MSFTResearch | Classical vocal musician. https://yulin-yu.github.io/
Stanford HAI Fellow, Toshiba Professor MIT, Member US National Academies, UN Global Partnership for Sustainable Development Data Board Member
Data & computational social scientist; human-centered AI; data privacy; Web3.0; resilient communities.
MIT Researcher, he/him, Senior Visiting Researcher @ Ritsumeikan, Co-Founder of Humanyze, former Senior Researcher @ HBS, author of People Analytics. AI, management, law, corporate governance, psychology, anthropology, ethics, and similar topics
The Northwestern Institute on Complex Systems (NICO) incubates innovative collaborations that leverage complexity, networks, and data science.
Educator & Public Speaker.
Author of The Narrow Window - demystifying AI and its potential impact on society.
mybook.to/TheNarrowWindow
AI, Ethics, SmartCity
๐ฆ๐ฎ๐ฝ๐ถ๐ฒ๐ป๐๐ฎ ๐จ๐ป๐ถ๐๐ฒ๐ฟ๐๐ถ๐๐: lecturer Planning and Strategic Management
๐๐ก๐๐: member of National Authority for AI association
๐ง๐๐ : Account Manager
๐ฐ https://doi.org/10.1108/TG-04-2024-0096
๐ https://www.linkedin.com/in/vriccardi
Economic data scientist and author. Currently @ No10, formerly ONS & Bank. Book on nuclear fusion, 'The Star Builders', out now with S&S/W&N. Views my own.
Website: www.aeturrell.com
Climate Change, Complexity Economics, Cities, Cascading, Nexus, Data, Systems & Ecology. Assoc. Prof. at SRI Leeds.
Hobby: Enforcement of Scientific Excellence.
Novel Transdisciplinary Urban Synthesis https://is.gd/1alYNP
More https://is.gd/PfiCiI
Present: Postdoc @annenberginstitute.bsky.socialโฌ & computational social scientist studying higher ed.
Past: Marsal School of Education & Ford School of Public Policy; 2024 Spencer Dissertation Fellow; Most Fashionable Boy 2010, Kaukauna High School ๐ณ๏ธโโง๏ธ
Parent, spouse, Australian, Professor of Machine Learning in Oxford. Long Covid, trans rights, music, reggae on Fridays, AI must be good for humans, https://www.robots.ox.ac.uk/~mosb
Computational social science and causal inference | Romantically involved with statistics | Tentative plans to ride a bike | PhDing @Northeastern
https://joshrrosen.github.io/personal-website/
urbanite & urbanista
PhD in Geography @ UniLu + LISER
Urban mobility, urban form, ABMs, complexity.
๐ง๐ท in ๐ฑ๐บ (blueets in PT & EN)
๐จโ๐ซ Mathematician. PhD statistics since 2018
๐ Researcher and professor at UPM (formerly at UNIOVI, USC, UPMC, UGR). Regrettably, I passed through the stats department at UCM.
๐ก SEIO and DVS
๐#RStats trainer at UC3M and RTVE
#Biostats #NetworkAnalysis
Computational Social Science & Science of Science | PhD Student at CU Boulder
Economic geographer, computational social scientist. ANETI Lab, HUN-REN KRTK, and Corvinus University of Budapest. Interested in cities and networks of innovation and inequality.
IUB Informatics PhD student | Science of Science, Computational Social Science | https://munjungkim.github.io/