In the absence of an opportunity to physically interact with products in the online environment, online information plays a critical role in enabling e-Commerce consumers’ purchase decisions. Thus, it is critical to understand what leads to consumer satisfaction with online information quality. However, despite the rapidly increasing number of consumers who use websites to gather pre-purchase p...

Massive Open Online Courses (MOOCs) bring together thousands of people from different geographies and demographic backgrounds – but to date, little is known about how they learn or communicate. We introduce a new content-analysed MOOC dataset and use Bayesian Non-negative Matrix Factorization (BNMF) to extract communities of learners based on the nature of their online forum posts. We see that ...

This thesis introduces novelty detection techniques that use a combination of Gaussian processes, extreme value theory and divergence measurement to identify anomalous behaviour in both streaming and batch marine data. The work is set in context by a review of current methodologies, identifying the limitations of current modelling processes within this domain. Marine data modelling is first imp...

background: there are no general strategies or tools to evaluate daily lesson plans; however, assessments conducted using traditional methods usually include course plans. this study aimed to evaluate the strengths and weaknesses of online survey software in collecting data on education in medical fields and the application of such softwares to evaluate students' views and modification of ...

[no abstract available]

Humans are inherently mobile creatures. The way we move around our environment has consequences for a wide range of problems, including the design of efficient transportation systems and the planning of urban areas. Here, we gather data about the position in space and time of about 16 000 individuals who uploaded geo-tagged images from locations within the UK to the Flickr photo-sharing website...

During 2014–15, there were several outbreaks of nominated-based online social contagion. These infections, which were transmitted from one individual to another via posts on social media, included games such as ‘neknomination’, ‘ice bucket challenge’, ‘no make up selfies’, and Facebook users re-posting their first profile pictures. Fitting a mathematical model of infectious disease transmission...

To solve the cruise two-dimensional revenue management problem and develop such an automated system under uncertain environment, a static model which is a stochastic integer programming is firstly constructed to maximize the total expected revenue from all kinds of cruise products. Four methods can be applied to solve the above model, which are chance constrained programming, robust optimizatio...

Information spreads rapidly across Web sites, Web logs and online forums. This paper describes the research framework of the IDIOM Project (Information Diffusion across Interactive Online Media), which analyzes this process by identifying redundant content elements, mapping them to an ontological knowledge structure, and tracking their temporal and geographic distribution. Linguists define "idi...