An efficient means for classifying potentially hazardous events using wireless acoustic sensor networks may significantly contribute to the preservation of cultural heritage, artifacts, and architectural sights. However, classification of field-collected sound samples is a demanding task because omnipresent ambient noise severely affects the quality of the recorded samples and the corresponding extracted features. Building on previous work, the authors present a series of fusion or ensemble learning techniques that poll a number of artificial neural network classifiers in order to create class estimates that are significantly more accurate than each isolated classifier or their average. Furthermore, ambient noise effect is simulated by artificially injecting additive white and pink noise to the available sound samples, thus creating a wide range of signal-to-noise (SNR) values. Numerical results demonstrate that the proposed fusion techniques maintain satisfactory accuracy even for negative SNR values, thus demonstrating the applicability of the proposed classification platform for real-world applications.
Click to purchase paper as a non-member or you can login as an AES member to see more options.
No AES members have commented on this paper yet.
To be notified of new comments on this paper you can
subscribe to this RSS feed.
Forum users should login to see additional options.
If you are not yet an AES member and have something important to say about this paper then we urge you to join the AES today and make your voice heard. You can join online today by clicking here.
