Location Privacy: User Behavior in the Field

Immersive evironments can facilitate the virtual interaction between people, objects, places, and databases. Immersion has several varied practical applications. It can serve as an aid to engineering applications. Immersion can also be used to understand and aid the disabled. These environments result in the production of large amounts of data for transmission and storage. Data types such as im...

behavior are discussed that concern the duration and frequency of terminal sessions, the use of language processors, user response time, and command usage. The methodologies of the behavioral sciences can provide data useful to systems engineers and designers of complex information processing systems. For example, the quantitative description of the usage of existing systems can provide an unde...

Modeling User Behavior and Attention in Search

In the vision of both researchers and standardization committees, networks and services will evolve in the direction of increasing pervasiveness, convergence, and quality of service management capability. Consequently, users will gain an increasing dependency on the presence and availability of network connectivity and the huge plethora of provided services. Yet fostering the development of our...

In smart environments interactive assistants can support the user’s daily life by being ubiquitously available through any interaction device that is connected to the network. Focusing on graphical interaction, user interfaces are required to be flexible enough to be adapted to the actual context of the user. In this paper we describe an approach, which enables flexible user interface layout ad...

In this paper, we present five user experiments on incorporating behavioral information into the relevance feedback process. In particular, we concentrate on ranking terms for query expansion and selecting new terms to add to the user’s query. Our experiments are an attempt to widen the evidence used for relevance feedback from simply the relevant documents to include information on how users a...

In this paper, we investigate the differences and similarities in user job submission behavior in High Performance Computing (HPC) and High Throughput Computing (HTC). We consider job submission behavior in terms of parallel batch-wise submissions, as well as delays and pauses in job submission. Our findings show that modeling user-based HTC job submission behavior requires knowledge of the und...

Navigational behavior of website visitors can be extracted from web access log files with data mining techniques such as sequential pattern mining. Visualization of the discovered patterns is very helpful to understand how visitors navigate over the various pages on the site. Currently several web log visualization tools have been developed. However those tools are far from satisfactory. They d...

Machines are becoming more socially aware as the fields of affective computing and ambient intelligence advance. In the future such machines will start to become more commonplace in domestic and work environments. How will these machines affect people’s behavior? Previous work shows that people both have a tendency to treat machines like humans, as well as to abuse them. We have designed an exp...