The Woz Recognizer: A Wizard Of Oz Sketch Recognition System

Keywords

Diagrams; Mathematics; Pen-computing; Sketch recognition; Wizard of Oz

Abstract

Sketch recognition has the potential to be an important input method for computers in the coming years, particularly for STEM (science, technology, engineering, and math) education. However, designing and building an accurate and sophisticated sketch recognition system is a time-consuming and daunting task. Since sketch recognition mistakes are still common, it is important to understand how users perceive and tolerate recognition errors and other user interface elements with these imperfect systems. In order to solve this problem, we developed a Wizard of Oz sketch recognition tool, the WOZ Recognizer, that supports controlled recognition accuracy, multiple recognition modes, and multiple sketching domains for performing controlled experiments. We present the design of the WOZ Recognizer and our process for representing recognition domains using graphs and symbol alphabets. In addition, we discuss how sketches are altered, how to control the WOZ Recognizer, and how users interact with it. Finally, we present an expert user case study that examines the WOZ Recognizer's usability.

Publication Date

10-1-2015

Publication Title

ACM Transactions on Interactive Intelligent Systems

Volume

5

Issue

3

Document Type

Article

Personal Identifier

scopus

DOI Link

https://doi.org/10.1145/2743029

Socpus ID

84966874278 (Scopus)

Source API URL

https://api.elsevier.com/content/abstract/scopus_id/84966874278

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