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 …

Gesture-based recognition systems are susceptible to input recognition errors and user
errors, both of which negatively affect user experiences and can be frustrating to correct …

Touch screens supporting different inputs such as' Tap','Dwell','Double Tap'and'Force Press'
are omnipresent in modern devices and yet this variety of interaction opportunities is rarely …

Conventional version control systems save code changes at each check-in. Recently, some
development environments retain more fine-grain changes. However, providing tools for …

Graphical user interfaces (GUIs) are integral parts of software systems that require
interactions from their users. Software testers have paid special attention to GUI testing in …

Programmers often need to revert some code to an earlier state, or restore a block of code
that was deleted a while ago. However, support for this backtracking in modern …

Information visualization research has developed powerful systems that enable users to
author custom data visualizations without textual programming. These systems can support …

We advocate for the usage of hotkeys on touch-based devices by capitalising on soft
keyboards through four studies. First, we evaluated visual designs and recommended icons …

Today's widely deployed painting applications use a linear undo model that allows users to
backtrack previous operations in reverse chronological order. This undo model is not useful …

Simple history systems such as Undo and Redo permit retrieval of earlier or later interaction
states, but advanced systems allow powerful capabilities to reuse or reapply combinations of …