Mobile augmented reality (MAR) is a portable implementation of augmented reality (AR) that enables real-time interaction between digital content and the actual, physical world. Recently, it has been implemented in mobile applications (i.e., mobile augmented reality applications or MAR-Apps) accessible through smartphones, tablets, etc. However, even...

­Node classification in real-world attributed networks is a central analytical task that is a growing research area. In real-world networks, a large portion of node classes only contain limited labeled instances. Many prevailing graph machine learning methods typically rely upon the availability of sufficient labeled data. However, the long-tail...

Background Social media has become an indispensable tool in the face of natural disasters due to its broad appeal and ability to quickly disseminate information. For instance, Twitter is an important source for disaster responders to search for (1) topics that have been identified as being of particular interest over time, i.e., common topics such as...

As social networking becomes more popular, sensitive personal information seems to become much more readily available on the web. Although some social networks have privacy settings the user can change, some user-created data is simply unchangeable, and thus, remains public. Websites inadvertently store information such as links clicked on, liked, favorited,...

The explosive and viral nature of social media creates massive amounts of high-dimensional data. Features such as hashtags, keywords, or slang words are created every day and quickly become popular within a short period of time. However, social media data is not fully structured and its features are usually not predefined. One way to resolve this problem...

Background Recommendations of user-to-user relationships (“friends”) and items (e.g., products, services) have become integral to the social media experience. When implemented effectively, both the user and the platform gain value. Unlike established sites however, newly launched social media sites lack the historical data typically necessary...

Background The overturning of the Internet Privacy Rules by the Federal Communications Commissions (FCC) in late March 2017 allows Internet Service Providers (ISPs) to collect, share and sell their customers’ web browsing data without their consent. With third-party trackers embedded in webpages, this ruling places privacy under further risk....

Background Tremendous volumes of sequential event data continue to be generated across diverse technological domains. Whether they be “retweets” sprouting across the social media network Twitter, stock trades, or ride-share vehicle usage patterns, effective data processing of past occurrences can improve near-term predictability of future...

In social media, the term “viral” refers to when a piece of information (microblog, photograph, video, link, etc.) starts to spread in a social network and increases in popularity by an order-of-magnitude. Much work is currently being done to better understand the patterns and implications of this new phenomenon. Previous studies have devised...