Human-Computer Interaction: An Empirical Research Perspective is the definitive guide to
empirical research in HCI. The book begins with foundational topics including an historical …

Increasingly, users are interacting with information retrieval (IR) systems with the goal of
addressing complex, ill-defined search tasks. As a result, the interest in deconstructing and …

Information seeking is a fundamental human activity. In the modern world, it is frequently
conducted through interactions with search systems. The retrieval and comprehension of …

Exploratory search is an increasingly important activity yet challenging for users. Although
there exists an ample amount of research into understanding exploration, most of the major …

There are many existing studies of user behavior in simple tasks (eg, navigational and
informational search) within a short duration of 1--2 queries. However, we know relatively …

Personalized search systems tailor search results to the current user intent using historic
search interactions. This relies on being able to find pertinent information in that user's …

Pre-adoption expectations often serve as an implicit reference point in users' evaluation of
information systems and are closely associated with their goals of interactions, behaviors …

The importance of tasks in information retrieval (IR) has been long argued for, addressed in
different ways, often ignored, and frequently revisited. For decades, scholars made a case …

The acquisition of information and the search interaction process is influenced strongly by a
person's use of their knowledge of the domain and the task. In this paper we show that a …

Complex search tasks that involve uncertain solution space and multi-round search
iterations are integral to everyday life and information-intensive workplace practices …