User studies demonstrate that nondomain experts do not use the same information-seeking strategies as domain experts. Because of the transformation of integrated library systems into Information Gateways in the late 1990s, both nondomain experts and domain experts have had available to them the wide range of information-seeking strategies in a single system. This article describes the results o...

Expert search is about finding people rather than documents. The goal is to retrieve a ranked list of candidates with expertise on a given topic. The task is studied in the context of the enterprise track. We describe an approach that compares topic profiles and candidate profiles directly. These profiles are not based on unordered sets of documents, but on ranked lists. This allows us to diffe...

I see my role in the classroom as one of structuring the class experience so that the students have the tools, confidence, and interest in the subject matter to perform well in my class and in their future endeavors. I approach the challenge of teaching by 1) having high expectations of students, 2) pushing students to take an active role in their own education, and 3) showing students that the...

Ensuring adolescents are equipped with the necessary skills to handle coercion and pressure from peers is a central component of effective relationship education. However, for teachers attempting to convey these principles, didactic methods have been shown to meet with limited success, as the highest-risk students may fail to engage with the subject matter in a meaningful fashion. In this paper...

It is challenging to design a serious game. In addition to being fun, such a game needs to be valid and meaningful. For this reason, requirement and domain knowledge elicitation are more important in designing serious games compared to designing entertainment games. Despite this importance, the elicitation occurs frequently in an unstructured manner. In this paper, we propose to use and embed c...

Writing the city,” particularly writing the city of Johannesburg, in post-apartheid South African fiction can be considered a new approach to interpreting South African culture—a new approach that takes into consideration and reflects the changes taking place in present-day South African society. Texts written on Johannesburg such as Kgebetli Moele’s Room 207 (2006) and Ivan Vladislavić’s The R...

Some economists find markets everywhere and assume that they emerge spontaneously once a set of necessary conditions such as well-defined property rights is fulfilled. Others emphasise the role of organisations and contend that markets are actually less dominant. But despite claims to the contrary, the market concept is hardly analyzed in depth. Nor are there serious attempts to examine empiric...

THIS lecture, which I give at your request, will necessarily disappoint you in a number of ways. You will naturally expect me to take a position on actual problems of the day. But that will be the case only in a purely formal way and toward the end, when I shall raise certain questions concerning the significance of political action in the whole way of life. In today's lecture, all questions th...

Student modeling systems must operate in an environment in which a student's mastery of a subject matter is likely to change as a lesson progresses. A student model is formed from evaluation of evidence about the student's mastery of the domain. However, given that such mastery will change, older evidence is likely to be less valuable than recent evidence. Data aging addresses this issue by dis...

Twentieth-century philosophers of religion made strides forward in advancing sophisticated arguments about religious knowledge, language, experience and arguments for the existence of the theistic God. However, by the end of the century Anglo-American philosophers in particular tended to treat philosophy of religion as synonymous with a Christian account of the divine. Male and female philosoph...