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Marian-Andrei Rizoiu

Marian-Andrei Rizoiu

Lecturer in Computer Science, University of Technology Sydney
Dr. Marian-Andrei Rizoiu is lecturer with the University of Technology Sydney, leading the Behavioral Data Science group, studying the dynamics of human attention in the online environment. His research has made several key contributions, particularly to the areas of online popularity prediction and online privacy. For the past several years, he has been developing theoretical models for online information diffusion, which can account for complex social phenomena, such as the rise and fall of online popularity, the spread of misinformation or the adoption of disruptive technologies. He approached questions such as "Why did X become popular, but not Y?" and "How can items be promoted?" with implications in advertising and marketing.

Marian-Andrei has also worked on detecting the evolution of privacy loss over time. His research has shown that privacy "leaks" over time and it identified the factors causing the loss: the individual's own actions and the environment. The conclusions were staggering: privacy continues to decrease even for users who retired from activity. Marian-Andrei published in the most selective venues of the field (such as WWW, WSDM, ICWSM or CIKM) and his work has received significant media attention, including from the Wikimedia Foundation for the work concerning the privacy of Wikipedia editors (which featured in the March 2016 Wikimedia Research Showcase). See more at http://www.rizoiu.eu

Conspiracy theorist tactics show it’s too easy to get around Facebook’s content policies

Mar 25, 2024 05:11 am UTC| Insights & Views Technology

During the COVID pandemic, social media platforms were swarmed by far-right and anti-vaccination communities that spread dangerous conspiracy theories. These included the false claims that vaccines are a form of...

How AI can help choose your next career and stay ahead of automation

Aug 06, 2021 09:49 am UTC| Technology

The typical Australian will change careers five to seven times during their professional lifetime, by some estimates. And this is likely to increase as new technologies automate labour, production is moved abroad, and...

Coronavirus infecting Australian jobs: vacancy rates down since early February

Mar 23, 2020 12:05 pm UTC| Insights & Views

The economic impacts of the COVID-19 coronavirus will be enormous. Only blind optimism can deny the dark realities of the moment. Policy responses are escalating by the hour. Markets have plummeted to GFC levels. Food...

Can hiding likes make Facebook fairer and rein in fake news? The science says maybe

Oct 09, 2019 11:24 am UTC| Insights & Views Technology

This is the first article in a series looking at the attention economy and how online content gets in front of your eyeballs. You may have read about or already seen, depending on where you are the latest tweak to...

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Economy

Europe Confronts Rising Competitive Pressure as China Accelerates Export-Led Growth

Europe is facing growing competitive pressure from China as Beijing intensifies its export-driven growth strategy, a shift Goldman Sachs says is reshaping the outlook for several major European industries. The bank...

Citi Sets Bullish 2026 Target for STOXX 600 as Fiscal Support and Monetary Easing Boost Outlook

Citigroup has raised its outlook for European equities, setting a 2026 year-end target of 640 for the STOXX 600 index. The forecast suggests a potential 10.5% upside from Thursdays close, reflecting growing confidence in...

Dollar Weakens Ahead of Expected Federal Reserve Rate Cut

The U.S. dollar hovered near a five-week low on Friday as global investors positioned themselves for a widely anticipated Federal Reserve rate cut next week. The greenback remained under pressure across major currencies,...

RBI Cuts Repo Rate to 5.25% as Inflation Cools and Growth Outlook Strengthens

The Reserve Bank of India (RBI) delivered a widely expected 25-basis-point cut to its key repo rate on Friday, lowering it from 5.50% to 5.25% as policymakers moved to support economic growth amid easing inflation. The...

Asian Markets Mixed as RBI Cuts Rates and BOJ Signals Possible Hike

Asian stock markets traded mixed on Friday as investors assessed contrasting signals from major central banks, while most regional indexes held steady ahead of key U.S. inflation data. Market sentiment was shaped by Indias...

Politics

Cuba Reaffirms Anti-Drug Cooperation as Tensions Rise in the Caribbean

Cuban authorities announced that the island is intensifying its fight against narcotics trafficking in the Caribbean, emphasizing ongoing cooperation with the U.S. Coast Guard despite heightened political tensions and an...

Drones Spotted Near Zelenskiy’s Flight Path in Ireland Trigger Security Alert

An Irish naval vessel detected as many as five drones operating close to the flight path of Ukrainian President Volodymyr Zelenskiys aircraft as he arrived in Ireland for a state visit, according to local media reports on...

Australia Progresses AUKUS Review as U.S. Affirms Strong Support

Australia is moving forward with the newly received United States review of the AUKUS nuclear-powered submarine partnership, signalling renewed confidence in the trilateral defence pact with the U.S. and the United...

Trump Administration Tightens H-1B Visa Vetting With New Focus on Free Speech and Censorship

The Trump administration has introduced stricter vetting measures for H-1B visa applicants, targeting professionals in highly skilled fields often recruited by major U.S. tech companies. According to an internal State...

China Urged to Prioritize Economy Over Territorial Ambitions, Says Taiwan’s President Lai

Taiwan President Lai Ching-te has urged Chinese President Xi Jinping to direct his focus toward revitalizing Chinas weakening economy rather than pursuing territorial expansion, highlighting widening economic contrasts...

Science

Senate Sets December 8 Vote on Trump’s NASA Nominee Jared Isaacman

The U.S. Senate Commerce Committee announced it will vote on December 8 on President Donald Trumps renewed nomination of private astronaut and tech entrepreneur Jared Isaacman to lead NASA. Isaacman, known for his...

NASA Cuts Boeing Starliner Missions as SpaceX Pulls Ahead

NASA has significantly scaled back Boeings Starliner program after years of technical issues and delays, announcing that the next Starliner mission to the International Space Station (ISS) will fly without astronauts. The...

Blue Origin’s New Glenn Achieves Breakthrough Success With First NASA Mission

Blue Origins massive New Glenn rocket marked a major milestone as it completed its first mission for paying customers, sending two NASA satellites toward Mars and successfully landing its reusable booster at sea. The...

Cogent Biosciences Soars 120% on Breakthrough Phase 3 Results for Bezuclastinib in GIST Treatment

Cogent Biosciences (NASDAQ: COGT) shares skyrocketed over 120% after the biotech company announced groundbreaking results from its Phase 3 PEAK trial evaluating bezuclastinib in combination with sunitinib for patients with...

Trump and Merck KGaA Partner to Slash IVF Drug Costs and Expand Fertility Coverage

U.S. President Donald Trump and German pharmaceutical company Merck KGaA have announced a groundbreaking deal aimed at lowering the cost of in-vitro fertilization (IVF) treatments while boosting access to fertility care in...

Technology

EU Prepares Antitrust Probe Into Meta’s AI Integration on WhatsApp

The European Commission is reportedly preparing to launch a new antitrust investigation into Meta Platforms Inc. (NASDAQ: META) over the companys recent rollout of artificial intelligence features within WhatsApp....

Sam Altman Reportedly Explored Funding for Rocket Venture in Potential Challenge to SpaceX

OpenAI CEO Sam Altman reportedly explored raising significant capital to acquire or partner with a rocket company, a move that could have created direct competition with Elon Musks SpaceX. According to a report from the...

Wikipedia Pushes for AI Licensing Deals as Jimmy Wales Calls for Fair Compensation

Wikipedia is seeking additional licensing deals with major technology companies to address the growing financial burden caused by artificial intelligence firms heavily scraping its platform, according to co-founder Jimmy...

Firelight Launches as First XRP Staking Platform on Flare, Introduces DeFi Cover Feature

Firelight reaches 25M XRP deposit cap within hours of launch; ushers in a new era for decentralized XRP staking. A new XRP staking platform, Firelight, has officially launched on the Flare blockchain, marking the first...

OpenAI Moves to Acquire Neptune as It Expands AI Training Capabilities

OpenAI has confirmed plans to acquire Neptune, a startup known for its advanced tools that help companies track, monitor, and optimize AI model training workflows. Although the company did not release the financial details...
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