158 search results - page 30 / 32 » Analysis of an online health social network |
WWW
2008
ACM
14 years 6 months ago
2008
ACM
High-quality, personalized recommendations are a key feature in many online systems. Since these systems often have explicit knowledge of social network structures, the recommenda...
ICWSM
2008
13 years 7 months ago
2008
"Witkeys" are websites in China that form a rapidly growing web-based knowledge market. A user who posts a task also offers a small fee, and many other users submit thei...
CIVR
2008
Springer
13 years 7 months ago
2008
Springer
The number of personal multimedia objects, such as digital photographs and videos, are exploding on the web through popular sites such as Flickr, YouTube, and FaceBook hosting bil...
SAC
2010
ACM
14 years 20 days ago
2010
ACM
CAPTCHAs protect online resources and services from automated access. From an attacker’s point of view, they are typically perceived as an annoyance that prevents the mass creat...
SOCINFO
2010
13 years 4 months ago
2010
Abstract. Online tools for collaboration and social platforms have become omnipresent in Web-based environments. Interests and skills of people evolve over time depending in perfor...