Connect with us

Tech

Detecting fraudulent product reviews with enhanced accuracy

Published

on

Detecting fraudulent product reviews with enhanced accuracy


Credit: Pixabay/CC0 Public Domain

The rise of e-commerce has brought unprecedented convenience to consumers, but it has also created fertile ground for deceptive practices in online marketplaces. A growing body of research is now focusing on the detection of fake or misleading product reviews, often referred to as spam reviews. These are deliberately written to either unfairly promote a product or damage a competitor’s reputation.

These reviews frequently use fabricated profiles or carefully crafted language, making them difficult to distinguish from genuine customer feedback. Moreover, the use of large language models, colloquially known as generative AI, are now being used to generate authentic-seeming spam reviews.

The impact of spam reviews is significant. Consumers may be persuaded to purchase low-quality goods, while legitimate businesses suffer reputational harm. Ultimately, this might erode trust in digital marketplaces. However, distinguishing between authentic opinions and deceptive ones is difficult.

For their article published in the International Journal of Services, Economics and Management researchers have turned to computational opinion mining, which involves analyzing text to extract sentiment and meaning, to detect patterns indicative of fraudulent activity.

Traditional techniques include filtering for suspicious keywords, monitoring abnormal posting patterns, assessing reviewer credibility, and employing verification tools such as anti-spam CAPTCHAs.

More recently, advances in (ML) and processing (NLP), which allows a computer to interpret , have enabled automated systems to detect the subtle linguistic and contextual cues that often reveal fabricated content.

The researchers explain that central to their approach is the creation of ground truth datasets. These are curated examples of real and fake reviews. These datasets provide a reference for training machine learning models to recognize subtle indicators of deception, including unusual writing styles, sentiment inconsistencies, or anomalies in sentence structure.

The new approach then combines multiple algorithms into a hybrid classifier. A deep learning framework, such as a (CNN), which is adept at identifying , is paired with a traditional statistical classifier. The accuracy rate of this hybrid is between 96% and 99% when tested on standard datasets.

As global e-commerce continues to expand, accurate spam detection systems will become increasingly important in maintaining the reliability of digital marketplaces, reinforcing transparency and trustworthiness.

More information:
Pallavi Zambare et al, Enhanced accuracy of detecting fraudulent product reviews using a fusion machine learning approach, International Journal of Services, Economics and Management (2025). DOI: 10.1504/IJSEM.2023.10061262

Citation:
Detecting fraudulent product reviews with enhanced accuracy (2025, September 15)
retrieved 15 September 2025
from https://techxplore.com/news/2025-09-fraudulent-product-accuracy.html

This document is subject to copyright. Apart from any fair dealing for the purpose of private study or research, no
part may be reproduced without the written permission. The content is provided for information purposes only.





Source link

Tech

Architecture’s past holds the key to sustainable future

Published

on

Architecture’s past holds the key to sustainable future


Credit: Unsplash/CC0 Public Domain

Modern “sustainable”‘ innovations in architecture are failing to slow climate change, but revisiting ancient knowledge and techniques found in traditional architecture could offer better solutions.

This is the argument of architectural historians Professor Florian Urban and Barnabas Calder in their new book “Form Follows Fuel: 14 Buildings from Antiquity to the Oil Age”. The authors argue that has been the biggest influence on architecture throughout human history.

Their extensive study is the first to calculate energy inputs for a range of historical buildings, demonstrating how different types of fuel, from human labor to fossil fuels, have fundamentally determined building designs across civilizations and eras.

“The history of architecture can be told as a history of energy,” the authors explain. “Today’s architecture is accordingly the outcome of four centuries of effort, innovation and ingenuity directed at maximizing the proportion of architectural production and operation that could be powered by fossil fuel heat.”

This argument comes at a critical moment in , as the building sector currently accounts for 37% of all human climate-changing emissions. Despite decades of research and discussion, the environmental impact of buildings continues to rise.

Urban and Calder document how the shift to fossil fuels begins in the 17th century and transforms architecture more profoundly than any other development in human history. This transition reversed the previous dynamic, where labor was cheap and heat expensive, creating an architectural model which depended on energy-intensive materials and processes that reduced human input.

“If form follows fuel, ours is fundamentally an architecture of intense fossil fuel consumption,” the authors explain.

Even as society becomes more aware of emissions and , and more efforts are made to build sustainably, the authors prove that today’s architecture comes at a catastrophically high energy cost.

They explain how globally influential minimalist designs often depend on massive energy consumption, for example, the Seagram Building in New York, widely praised for its simplicity, received an energy efficiency rating of just 3 out of 100 from the US Environmental Protection Agency, and cost more energy to build than the entire labor cost of quarrying, transporting and placing 5.5m tons of stone for the largest of the Egyptian pyramids.

“Mies’s famous dictum that ‘less is more,” turns out to be missing a word: ‘less is more carbon,'” the authors explain. “Per square meter of floor space, it used four times as much energy as the average American office building in 2012.”

By contrast, pre-modern buildings like the Scottish blackhouse achieved remarkable thermal efficiency using only local materials and passive design strategies. Examples of buildings like these show how humans have always before been able to provide the interior space and thermal comfort needed for survival in a harsh climate, while being fully sustainable and recyclable.

The authors’ studies span 4,500 years of architectural history, from the Great Pyramid of Giza to Kuala Lumpur International Airport.

The authors offer practical solutions for contemporary architects by unpicking the specific energy costs of different elements and materials. For instance, their research demonstrates how structural stone tenements used significantly less energy throughout their than similar brick buildings, providing quantifiable metrics to inform modern sustainable design decisions.

Professor Urban says, “With regard to energy consumption, the world has never had so many pharaohs. Not only special buildings like the Seagram, but even our most mundane buildings use more energy than the most extraordinary structures of the ancient world.”

As architects and policymakers search for solutions to the climate emergency, “Form Follows Fuel” challenges assumptions about sustainability always meaning technological advancement, and provides an alternative approach to low-carbon .

“The historical conditions of life without often look like poverty to those living in today’s energy-rich societies,” the authors explain, “but while luxuries were sparse and ill-distributed, materials local, and technologies comparatively simple for most non-fossil-fuel buildings, they had one immense advantage at a global scale: they collectively used resources at a rate within the bounds of what the planetary ecosystem could sustain.”

More information:
Florian Urban et al, Form Follows Fuel, (2025). DOI: 10.4324/9781032637174

Provided by
Taylor & Francis


Citation:
Architecture’s past holds the key to sustainable future (2025, September 15)
retrieved 15 September 2025
from https://techxplore.com/news/2025-09-architecture-key-sustainable-future.html

This document is subject to copyright. Apart from any fair dealing for the purpose of private study or research, no
part may be reproduced without the written permission. The content is provided for information purposes only.





Source link

Continue Reading

Tech

How AI Is Upending Politics, Tech, the Media, and More

Published

on

How AI Is Upending Politics, Tech, the Media, and More


In an increasingly divided world, one thing that everyone seems to agree on is that artificial intelligence is a hugely disruptive—and sometimes downright destructive—phenomenon.

At WIRED’s AI Power Summit in New York on Monday, leaders from the worlds of tech, politics, and the media came together to discuss how AI is transforming their intertwined worlds. The Summit included voices from the AI industry, a current US senator and a former Trump administration official, and publishers including WIRED’s parent company, Condé Nast. You can view a livestream of the event in full below.

Livestream: WIRED’s AI Power Summit

“In journalism, many of us have been excited and worried about AI in equal measure,” said Anna Wintour, Condé Nast’s chief content officer and the global editorial director of Vogue, in her opening remarks. “We worry about it replacing our work, and the work of those we write about.”

Leaders from the world of politics offered contrasting visions for ensuring AI has a positive impact overall. Richard Blumenthal, the Democratic senator from Connecticut, said policymakers should learn from social media and figure out suitable guardrails around copyright infringement and other key issues before AI causes too much damage. “We want to deal with the perfect storm that is engulfing journalism,” he said in conversation with WIRED global editorial director Katie Drummond.

In a separate conversation, Dean Ball, a senior fellow at the Foundation for American Innovation and one of the authors of the Trump Administration’s AI Action Plan, defended that policy blueprint’s vision for AI regulation. He claimed that it introduced more rules around AI risks than any other government has produced.

Figures from within the AI industry painted a rosy picture of AI’s impact, too, arguing that it will be a boon for economic growth and would not be deployed unchecked.



Source link

Continue Reading

Tech

The Moccamaster Is Built for a Lifetime—and You Can Save $40 Right Now

Published

on

The Moccamaster Is Built for a Lifetime—and You Can Save  Right Now


One of the most prestigious honors we award products is inclusion on our Buy It for Life gear roundup. This list represents products that WIRED writers have personally used for years, and as the name implies, they should last you for the rest of your life with proper care and warranty support. There’s only one coffee maker on that list, the Moccamaster KBGV Select, and you can currently pick it up from Amazon for up to $40 off its list price, depending on the color.

  • Photograph: Matthew Korfhage

  • Courtesy of Moccamaster

Moccamaster

KBGV Select Coffee Maker

These drip coffee makers are seriously built to last, handmade in the Netherlands with solid steel and copper components. They’re fully repairable, which means they’ll keep churning out hot mugs of perfect coffee even after the five-year warranty ends. There are a variety of models, but we like the KBGV Select because it can also brew a half carafe instead of a full carafe, a useful trick for smaller households or an afternoon energy burst.

Extremely precise temperature control means you get excellent coffee every time, managing to consistently heat within a range of 4 degree Celsius. Technivorm is one of less than a dozen companies producing SCA-certified coffee makers for home use, and the Moccamaster models take up a noticeable chunk of that list.

It has all the features you’d expect from a drip coffee maker, like a hot plate for the carafe that has an automatic shut off, which automatically adjusts temperature based on whether you brewed a full or half carafe. The reservoir is 1.25 liters, so you can brew up to 10 cups of coffee at once, and it takes just four to six minutes from start to finish.

This model is available in a huge variety of colors, and your discount will vary based on which you think will match your kitchen best. I found the best price of $317 on the Turquoise, with the Apricot and Matte Black right behind at $320, as well as lesser discounts on the Off-White, Polished silver, and Juniper varieties. While we think it’s worth spending the extra cash for something that will last you years to come, you can always peruse our other favorite coffee makers if you’re looking for something more wallet-friendly.



Source link

Continue Reading

Trending