New UTSA study describes method to detect dishonesty online
(Oct. 24, 2016) -- A new study by Kim-Kwang Raymond Choo, associate professor of information systems and cybersecurity and Cloud Technology Endowed Professor at The University of Texas at San Antonio (UTSA), describes a method for detecting people dishonestly posting online comments, reviews or tweets across multiple accounts, a practice known as “astroturfing.”
The study describes a statistical method that analyzes multiple writing samples. Choo, a member of the UTSA College of Business, and his collaborators found that it’s challenging for authors to completely conceal their writing style in their text. Based on word choice, punctuation and context, the method is able to detect whether one person or multiple people are responsible for the samples.
Choo and his co-authors (two former students of his, Jian Peng and Sam Detchon, and Helen Ashman, associate professor of information technology and mathematical sciences at the University of South Australia) used writing samples from the most prolific online commenters on various news web sites, and discovered that many people espousing their opinions online were actually all linked to a few singular writers with multiple accounts.
“Astroturfing is legal, but it’s questionable ethically,” Choo said. “As long as social media has been popular, this has existed.”
The practice has been used by businesses to manipulate social media users or online shoppers, by having one paid associate post false reviews on web sites about products for sale. It’s also used on social media wherein astroturfers create several false accounts to espouse opinions, creating the illusion of a consensus when actually one person is pretending to be many.
“It can be used for any number of reasons,” Choo said. “Businesses can use this to encourage support for their products or services, or to sabotage other competing companies by spreading negative opinions through false identities.”
Candidates for elected office have also been accused of astroturfing to create the illusion of public support for a cause or a campaign. For example, President George W. Bush, the Tea Party movement, former Secretary of State Hillary Clinton and current Republican presidential candidate Donald Trump have all been accused of astroturfing to claim widespread enthusiasm for their platforms.
Now that Choo has the capability to detect one person pretending to be many online, he is considering further applications for his top-tier research. Stressing that astroturfing, while frowned upon, is not illegal, he’s now looking into whether the algorithm can be used to prevent plagiarism and contract cheating.
“In addition to raising public awareness of the problem, we hope to develop tools to detect astroturfers so that social media users can make informed choices and resist online social manipulation and propaganda,” Choo said.
-------------------------------
Read Kim-Kwang Raymond Choo’s study, “Astroturfing detection in social media: a binary n-gram-based approach.”
Learn more about the UTSA Department of Information Systems and Cybersecurity.
Connect online at Facebook, Twitter, YouTube and Instagram.
Events
Join Dr. Rachel Yvonne Cruz, Assistant Professor of Mexican American Studies, for an interactive discussion on how music can challenge patriarchy, sexism, and colonialism through a guided discussion and live acoustic performance.
Assembly Room, 4th Floor (4.04.22), John Peace Library, Main CampusIn this hands-on workshop, participants will learn to setup an EndNote library, save references and PDFs, and automatically create and edit a bibliography. Attendees are encouraged, but not required, to have EndNote already installed on a personal computer.
Virtual EventAre you required to use LaTeX for writing your research papers? This workshop is divided into two parts: an introduction to Zotero, a citation management tool, and a demonstration of the features of Overleaf, a free online LaTeX editor.
Virtual EventCome listen to the UTSA Jazz Ensemble at a free event.
UTSA Recital HallLiterature reviews are a key element of evidence synthesis and scholarly inquiry. In this workshop, attendees will learn the differences between systematic, scoping, narrative, and other literature review types. The session will also detail the guidelines and components of various literature reviews, as well as resources to best support each.
Virtual EventFinalist candidates for the dean of the College of the Sciences will discuss their vision for the college.
Regents Room, MB 3.106, Main CampusAre you required to use LaTeX for writing your research papers? This workshop is divided into two parts: an introduction to Zotero, a citation management tool, and a demonstration of the features of Overleaf, a free online LaTeX editor.
Virtual Event