Reading 24: SketchREAD

Paper
Alvarado, Christine, and Randall Davis. "SketchREAD: a multi-domain sketch recognition engine." Proceedings of the 17th annual ACM symposium on User interface software and technology. ACM, 2004.
Publication Link: http://dl.acm.org/citation.cfm?id=1029637

Reading 23: HMM Overview

Paper
Rabiner, Lawrence R. "A tutorial on hidden Markov models and selected applications in speech recognition." Proceedings of the IEEE 77.2 (1989): 257-286.
Direct Link: http://www.robots.ox.ac.uk:5000/~vgg/rg/papers/hmm.pdf

Notes
This paper is very long, but it also goes into a lot of detail.  For the class, if you can just look over the primary overview in the first few pages, you'll be fine.

Reading 22: HMM Recognizer

Paper
Sezgin, Tevfik Metin, and Randall Davis. "HMM-based efficient sketch recognition." Proceedings of the 10th international conference on Intelligent user interfaces. ACM, 2005.
Publication Link: http://dl.acm.org/citation.cfm?id=1040899

Reading 21: LADDER

Paper

Hammond, Tracy, and Randall Davis. "LADDER, a sketching language for user interface developers." Computers & Graphics 29.4 (2005): 518-532.

Publication Link: http://www.sciencedirect.com/science/article/pii/S0097849305000865

Reading 20: Multi-Stroke Primitives

Paper
Hammond, Tracy, and Brandon Paulson. "Recognizing sketched multistroke primitives." ACM Transactions on Interactive Intelligent Systems (TiiS) 1.1 (2011): 4.
Publication Link: http://dl.acm.org/citation.cfm?id=2030369

Reading 19: Sketch Sounds

Paper
Li, Wenzhe, and Tracy Anne Hammond. "Recognizing text through sound alone." Twenty-Fifth AAAI Conference on Artificial Intelligence. 2011.
Direct Link: http://www.aaai.org/ocs/index.php/AAAI/AAAI11/paper/download/3791/4119

Notes
This paper takes an interesting perspective on sketch recognition.  We examine how sound may be used to identify different stroke types, letter in particular in this paper.  Hopefully, this gives you an idea of how multiple features from multiple modalities may be used in recognition, as indeed they may be used by humans in certain contexts.  In the future, we'll see how even more features, like the angle of the pen, may be used as a feature, and this paper fits in well with that conversation.

Reading 18: Geometry Review

Paper
Geometry Review - Appendices.  This document is not available online.  You will need to meet with me to obtain a copy.

Notes
This is an overview of some of the background material used in this course.  It should be a helpful review for the midterm.

Reading 17: Paleosketch

Paper
Paulson, Brandon, and Tracy Hammond. "PaleoSketch: accurate primitive sketch recognition and beautification." Proceedings of the 13th international conference on Intelligent user interfaces. ACM, 2008.
Publication Link:http://dl.acm.org/citation.cfm?id=1378775

Notes
Paleosketch has been referenced as an underlying recognizer in several other papers we've discussed.

Reading 16: Combining Corner Segmenters

Paper
Wolin, Aaron, Martin Field, and Tracy Hammond. "Combining corners from multiple segmenters." Proceedings of the Eighth Eurographics Symposium on Sketch-Based Interfaces and Modeling. ACM, 2011.
Publication Link: http://dl.acm.org/citation.cfm?id=2021185

Notes
This paper addresses how corner detection can be improved significantly by considering the results of multiple algorithms.

Reading 15: IStraw

Paper
Xiong, Yiyan, and Joseph J. LaViola Jr. "Revisiting ShortStraw: improving corner finding in sketch-based interfaces." Proceedings of the 6th Eurographics Symposium on Sketch-Based Interfaces and Modeling. ACM, 2009.
Publication Link: http://dl.acm.org/citation.cfm?id=1572759

Notes
This work is closely related to ShortStraw, but includes modifications intended to improve the accuracy of the algorithm.