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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...

Economy

New World Screwworm Found Near U.S. Border Raises Threat to Cattle Industry and Beef Prices

A dangerous outbreak of the New World Screwworm has moved closer to the United States, raising serious concerns for the livestock industry and agricultural economy. According to the U.S. Department of Agriculture (USDA),...

Iran-U.S. Nuclear Talks Remain Unresolved as Strait of Hormuz Risks Keep Markets on Edge

Iran has rejected suggestions that a final agreement has been reached with the United States, emphasizing that negotiations surrounding its nuclear program remain ongoing. The statement came after comments from U.S....

US Launches New Trade Investigation Into Vietnam Over Intellectual Property Concerns

The United States has initiated a new trade investigation into Vietnams handling of intellectual property (IP) rights, a move that could eventually lead to additional tariffs on Vietnamese imports. The investigation,...

US Dollar Slips as Markets Weigh Potential US-Iran Peace Deal and Oil Price Outlook

The U.S. dollar weakened slightly on Friday as investor confidence improved following comments from President Donald Trump regarding a possible peace agreement between the United States and Iran. The prospect of easing...

Oil Prices Fall as Markets Await U.S.-Iran Peace Deal Decision

Oil prices moved lower on Friday as investors closely monitored developments surrounding a potential U.S.-Iran peace agreement. Market sentiment weakened after U.S. President Donald Trump stated that he would meet with...

Politics

US Southern Command Chief Holds Rare Military Meeting With Cuban Officials at Guantanamo Bay

A rare high-level military meeting between the United States and Cuba took place at the perimeter of the U.S. Naval Station at Guantanamo Bay, marking a significant development in U.S.-Cuba relations amid growing...

Trump Nears Decision on Iran Ceasefire Extension as Key Disputes Remain

U.S. President Donald Trump said Friday that he is close to making a final decision on a proposed agreement to extend the current ceasefire with Iran, although major disagreements between Washington and Tehran continue to...

Poland Considers Revoking Zelensky’s Top Honor Over Controversial UPA Army Unit Recognition

Poland is considering revoking one of its highest state honors awarded to Ukrainian President Volodymyr Zelensky after a controversial decision by Ukraine to rename a military unit after the Ukrainian Insurgent Army (UPA),...

Trump Signs Executive Order to Expand Access to Federal Lands in the U.S.

U.S. President Donald Trump signed an executive order on Friday aimed at removing restrictions that limit access to federal lands across the United States, according to a statement from the White House. The move is part of...

UN Blacklists Israel and Russia Over Conflict-Related Sexual Violence Claims

The United Nations has added Israel and Russia to its official blacklist of parties suspected of committing conflict-related sexual violence, a decision that has sparked strong international reactions and intensified...

Science

Blue Origin New Glenn Rocket Explodes During Launch Pad Test, Delaying Space Ambitions

Blue Origin suffered a major setback after its uncrewed New Glenn rocket exploded during a launch pad test in Florida on Thursday, raising new challenges for Jeff Bezos space company as it competes with Elon Musks SpaceX...

Trump Administration Releases New UFO Files and Apollo Mission Records

The U.S. Defense Department has released dozens of previously classified UFO-related files following an order from President Donald Trump, sparking renewed debate over unidentified anomalous phenomena (UAP) and government...

China vs. NASA: The New Moon Race and What's at Stake by 2030

The space race is back and this time, its a direct competition between the United States and China for dominance on the lunar surface. NASAs Artemis II mission recently made history when four astronauts flew farther into...

NASA Artemis II: First Crewed Moon Mission Since Apollo Takes Four Astronauts on 10-Day Lunar Journey

NASAs Artemis II mission launched Wednesday, marking humanitys return to crewed lunar exploration for the first time since the Apollo era. Carrying four astronauts aboard the Orion spacecraft, this historic 10-day mission...

NASA's Artemis II Mission: First Crewed Lunar Journey Since Apollo

Technology

Kentucky School District Secures $27 Million in Social Media Addiction Lawsuit Settlements

A Kentucky school district has secured nearly $27 million in settlements from major social media companies over allegations that their platforms contributed to a growing student mental health crisis. The financial details,...

MongoDB Q1 FY2027 Earnings Beat Expectations, Raises Full-Year Outlook

MongoDB (NASDAQ: MDB) delivered stronger-than-expected first-quarter fiscal 2027 results, fueled by growing demand for its database platform among enterprises and organizations developing artificial intelligence...

SpaceX IPO Could Become Largest in History with $1.8 Trillion Valuation Target

Elon Musks SpaceX is reportedly moving forward with plans for a historic initial public offering (IPO), targeting a valuation of at least $1.8 trillion. According to a Bloomberg News report citing sources familiar with the...

Autodesk Beats Q1 Estimates, Acquires MaintainX for $3.6 Billion

Autodesk (NASDAQ: ADSK) reported stronger-than-expected financial results for its fiscal first quarter and announced a major $3.6 billion acquisition of MaintainX, a move that strengthens its position in AI-powered...

US Quantum Stocks Surge After $2 Billion Government Investment

The U.S. Department of Commerce has sparked major excitement across the technology and financial sectors after announcing plans to invest $2 billion into quantum computing and advanced hardware companies through the CHIPS...