Abstract
We introduce and compare three approaches to calculate structure- and content-based performance metrics for user-based evaluation of math audio rendering systems: Syntax Tree alignment, Baseline Structure Tree alignment, and MathML Tree Edit Distance. While the first two require “manual” tree transformation and alignment of the mathematical expressions, the third obtains the metrics without human intervention using the minimum edit distance algorithm on the corresponding MathML representations. Our metrics are demonstrated in a pilot user study evaluating the Greek audio rendering rules of MathPlayer with 7 participants and 39 stimuli. We observed that the obtained results for the metrics are significantly correlated between all three approaches.
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Freitas, D., Kouroupetroglou, G.: Speech Technologies for Blind and Low Vision Persons. Technology and Disability 20, 135–156 (2008)
Archambault, D., Stoger, B., Fitzpatrick, D., Miesenberger, K.: Access to scientific content by visually impaired people. UPGRADE VIII(2), 1–14 (2007)
Bates, E., Fitzpatrick, D.: Spoken mathematics using prosody, earcons and spearcons. In: Miesenberger, K., Klaus, J., Zagler, W., Karshmer, A. (eds.) ICCHP 2010, Part II. LNCS, vol. 6180, pp. 407–414. Springer, Heidelberg (2010)
Kouroupetroglou, G., Kacorri, H.: Deriving Accessible Science Books for the Blind Students of Physics. Proceedings of the American Institute of Physics 1203, 1308–1313 (2010)
Karshmer, A., Gupta, G., Pontelli, E., Miesenberger, K., Ammalai, N., Gopal, D., Batusic, M., Stöger, B., Palmer, B., Guo, H.: UMA: A System for Universal Mathematics Accessibility. In: Proceedings ASSETS 2004, the 6th Intern. ACM SIGACCESS Conference on Computers and Accessibility, Atlanta, Georgia, USA, October 18-20, vol. 196, p. 55. ACM (2004)
Tsonos, D., Kacorri, H., Kouroupetroglou, G.: A design-for-all approach towards multimodal accessibility of mathematics. Assistive Technology Research Series 25, 393–397 (2009)
Kacorri, H., Riga, P., Kouroupetroglou, G.: EAR-Math: Evaluation of Audio Rendered Mathematics. In: Stephanidis, C., Antona, M. (eds.) UAHCI 2014, Part II. LNCS, vol. 8514, pp. 111–120. Springer, Heidelberg (2014)
Soiffer, N.: A flexible design for accessible spoken math. In: Stephanidis, C. (ed.) UAHCI 2009, Part III. LNCS, vol. 5616, pp. 130–139. Springer, Heidelberg (2009)
Stevens, R.D.: Principles for the design of auditory interfaces to present complex information to blind people. Doctoral dissertation, University of York (1996)
Wongkia, W., Naruedomkul, K., Cercone, N.: I-Math: an Intelligent Accessible Mathematics system for People with Visual Impairment. Computational Approaches to Assistive Technologies for People with Disabilities 253, 83–108 (2013)
Fitzpatrick, D.: Towards Accessible Technical Documents: Production of Speech and Braille Output from Formatted Documents. Doctoral dissertation, Dublin City University (1999)
Murphy, E., Bates, E., Fitzpatrick, D.: Designing auditory cues to enhance spoken mathematics for visually impaired users. In: Proceedings of the 12th International ACM SIGACCESS Conference on Computers and Accessibility, pp. 75–82 (2010)
Zanibbi, R., Blostein, D., Cordy, J.R.: Baseline structure analysis of handwritten mathematics notation. In: Proc. of the 6th Int. Conf. Document Analysis and Recognition, pp. 768–773. IEEE (2001)
Zhang, K., Shasha, D.: Simple fast algorithms for the editing distance between trees and related problems. SIAM Journal on Computing 18(6), 1245–1262 (1989)
Pawlik, M., Augsten, N.: RTED: A Robust Algorithm for the Tree Edit Distance. PVLDB 5(4), 334–345 (2011)
Raman, T.V.: Mathematics for computer generated spoken documents–ASTeR Demonstration, http://www.cs.cornell.edu/home/raman/aster/demo.html
Acapela text-to-speech, http://www.acapela-group.com/
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Kacorri, H., Riga, P., Kouroupetroglou, G. (2014). Performance Metrics and Their Extraction Methods for Audio Rendered Mathematics. In: Miesenberger, K., Fels, D., Archambault, D., Peňáz, P., Zagler, W. (eds) Computers Helping People with Special Needs. ICCHP 2014. Lecture Notes in Computer Science, vol 8547. Springer, Cham. https://doi.org/10.1007/978-3-319-08596-8_95
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DOI: https://doi.org/10.1007/978-3-319-08596-8_95
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