In recent years, we have investigated algorithmic methods for automatically discovering and optimizing sequential treatments for chronic and life-threatening diseases. In this talk I will discuss two aspects of this work, first the problem of efficiently collecting data to learn good sequential treatment strategies, and second the problem of using data collected in multi-stage sequential trials...

g in usability research onal usability testing. There are various methodologies available when conducting research using eye trackers. This paper presents the results of a study aimed to compare the outcomes from four different retrospective think aloud (RTA) methods in a web usability study: an un‐cued RTA, a video cued RTA, a gaze plot cued RTA, and a gaze video cued RTA. Results indicate tha...

A resurgence of interest in qualitative approaches to research in online consumer behaviour studies has spawned a need for structured approaches in the use of appropriate research techniques. A mixed method approach to research questions can often lead to a greater clarity of answer as well as exposing the researcher to new ‘tools of enquiry’. This paper describes a mixed method approach using ...

OBJECTIVE To investigate whether the use of the think-aloud method with propositional analysis could be helpful in the design of a Clinical Decision Support System (CDSS) providing guideline recommendations about long-term follow-up of childhood cancer survivors. MATERIALS AND METHODS The think-aloud method was used to gain insight into healthcare professionals' information processing while r...

'When it changed' and 'Litmus' have been two recent book projects from Comma Press, which brought together authors and scientists to produce anthologies of science-based short stories. Each story arose from the direct collaboration of one author and one scientist, and each was followed by a discussion of the motivating science. In this talk I will describe the interaction between myself as a sc...

Thinking aloud is widely used for usability evaluation and its reactivity is therefore important to the quality of evaluation results. This study investigates whether thinking aloud (i.e., verbalization at levels 1 and 2) affects the behaviour of users who perform tasks that involve interruptions and time constraints, two frequent elements of real-world activities. We find that the presence of ...

This single subject study concerned how a 13 year-old student with specific learning disabilities used metacognition as he composed discourse in response to a writing prompt. Ethnographic procedures were used to collect and analyze data. The participant engaged in a think aloud procedure as he composed a paper about a famous historical figure. His transcribed verbalizations were analyzed by use...

Verbal data is the primary focus for analysis in the prevalent Usability evaluations like in ‘Think Aloud Method’. This study involves 18 cross cultural TA tests and it was found that users use gestures profoundly to communicate their mental activities. It was observed that hand gestures are attempts to communicate abstract feelings as well as to quantify, to simplify a complex expression & ref...

1. Much of the debate surrounding the issue of syntactic reconstruction seems to me to be confounded by a certain degree of terminological (and perhaps conceptual) imprecision. In today’s talk I would like to present some aspects of the problem, walking through how they look to someone who makes the set of assumptions that I make regarding how historical linguistics works, what syntax is, what ...