Featured Research

from universities, journals, and other organizations

Crowdsourcing is vulnerable to malicious behavior

Date:
September 3, 2014
Source:
University of Southampton
Summary:
New research has found that malicious behavior is the norm in crowdsourcing competitions -- even when it is in everyone’s interest to cooperate.

New research has found that malicious behaviour is the norm in crowdsourcing competitions -- even when it is in everyone's interest to cooperate.

Crowdsourcing provides the ability to accomplish information-gathering tasks that require the involvement of a large number of people, often across wide-spread geographies, expertise, or interests.

However, researchers from the University of Southampton and the National Information and Communications Technology Australia (NICTA) found that a significant feature of crowdsourcing -- its openness of entry -- makes it vulnerable to malicious behaviour.

They observed such behaviour in a number of recent popular crowdsourcing competitions, through analysis based on the 'Prisoner's Dilemma' scenario, which shows why two purely 'rational' individuals might not cooperate, even if it appears that it is in their best interest.

Co-author Dr Victor Naroditskiy from the University of Southampton says: "Everyone from the 'crowd' can contribute to solving the task. This is exactly what makes crowdsourcing so powerful for solving tasks that are all but impossible for a closed group of individuals or an organisation.

"At the same time, the openness makes crowdsourcing solutions vulnerable to malicious behaviour of other interested parties. Malicious behaviour can take many forms, ranging from sabotaging problem progress to submitting misinformation. This comes to the front in crowdsourcing contests where a single winner takes the prize."

Surprisingly, making the attacks more expensive for the attacker is not an effective way of deterring them. These findings, published in the Journal of the Royal Society Interface, will be important for the design of crowdsourcing competitions, as well as for firms that consider using a crowdsourcing to solve a task.


Story Source:

The above story is based on materials provided by University of Southampton. Note: Materials may be edited for content and length.


Journal Reference:

  1. V. Naroditskiy, N. R. Jennings, P. Van Hentenryck, M. Cebrian. Crowdsourcing contest dilemma. Journal of The Royal Society Interface, 2014; 11 (99): 20140532 DOI: 10.1098/rsif.2014.0532

Cite This Page:

University of Southampton. "Crowdsourcing is vulnerable to malicious behavior." ScienceDaily. ScienceDaily, 3 September 2014. <www.sciencedaily.com/releases/2014/09/140903092019.htm>.
University of Southampton. (2014, September 3). Crowdsourcing is vulnerable to malicious behavior. ScienceDaily. Retrieved October 23, 2014 from www.sciencedaily.com/releases/2014/09/140903092019.htm
University of Southampton. "Crowdsourcing is vulnerable to malicious behavior." ScienceDaily. www.sciencedaily.com/releases/2014/09/140903092019.htm (accessed October 23, 2014).

Share This



More Science & Society News

Thursday, October 23, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Ebola Fears Keep Guinea Hospitals Empty

Ebola Fears Keep Guinea Hospitals Empty

AP (Oct. 23, 2014) Fears of Ebola are keeping doctors and patients alike away from hospitals in the West African nation of Guinea. (Oct. 23) Video provided by AP
Powered by NewsLook.com
Academic Scandal Shocks UNC

Academic Scandal Shocks UNC

AP (Oct. 23, 2014) A scandal involving bogus classes and inflated grades at the University of North Carolina was bigger than previously reported, a new investigation found. (Oct. 23) Video provided by AP
Powered by NewsLook.com
Chameleon Camouflage to Give Tanks Cloaking Capabilities

Chameleon Camouflage to Give Tanks Cloaking Capabilities

Reuters - Innovations Video Online (Oct. 22, 2014) Inspired by the way a chameleon changes its colour to disguise itself; scientists in Poland want to replace traditional camouflage paint with thousands of electrochromic plates that will continuously change colour to blend with its surroundings. The first PL-01 concept tank prototype will be tested within a few years, with scientists predicting that a similar technology could even be woven into the fabric of a soldiers' clothing making them virtually invisible to the naked eye. Matthew Stock reports. Video provided by Reuters
Powered by NewsLook.com
Jet Sales Lift Boeing Profit 18 Pct.

Jet Sales Lift Boeing Profit 18 Pct.

Reuters - Business Video Online (Oct. 22, 2014) Strong jet demand has pushed Boeing to raise its profit forecast for the third time, but analysts were disappointed by its small cash flow. Fred Katayama reports. Video provided by Reuters
Powered by NewsLook.com

Search ScienceDaily

Number of stories in archives: 140,361

Find with keyword(s):
Enter a keyword or phrase to search ScienceDaily for related topics and research stories.

Save/Print:
Share:

Breaking News:

Strange & Offbeat Stories


Science & Society

Business & Industry

Education & Learning

In Other News

... from NewsDaily.com

Science News

Health News

Environment News

Technology News



Save/Print:
Share:

Free Subscriptions


Get the latest science news with ScienceDaily's free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

Get Social & Mobile


Keep up to date with the latest news from ScienceDaily via social networks and mobile apps:

Have Feedback?


Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?
Mobile: iPhone Android Web
Follow: Facebook Twitter Google+
Subscribe: RSS Feeds Email Newsletters
Latest Headlines Health & Medicine Mind & Brain Space & Time Matter & Energy Computers & Math Plants & Animals Earth & Climate Fossils & Ruins