This paper summarizes our work for MediaEval 2013 Spoken Web Search task evaluations. The task was Query-by-Example (search of spoken queries within spoken data). We submitted a system composed of 26 subsystems, of which 13 are based on Acoustic Keyword Spotting and 13 on Dynamic Time Warping. All of them use threestate phoneme posteriors as input features. Our main contribution was m-norm norm...

Article history: Received 28 May 2015 Received in revised form 14 September 2016 Accepted 27 October 2016 Available online 9 November 2016 The development of theories and techniques for big data analytics offers tremendous possibility for investigating large-scale events and patterns that emerge over space and time. In this research, we utilize a unique open dataset “The Global Data on Events, ...

This paper describes a methodology, and the results stemming from it, for analysing the dynamic encoding of speaker identity and dialect in prosodic parameters. A method based on employing properties of the well known Dynamic Time Warping (DTW) algorithm’s path of best match allows the separation of purely dynamic from static properties of acoustic parameters and hence their evaluation as to dy...

Aligning a canonical score to an audio recording of a musical performance can provide very good information about the timing of individual notes. However, a score representation frequently treats multiple note events as simultaneous, whereas in reality different performers will start notes at slightly differing times, and these timing details may be significant in the analysis of performance an...

In concatenative speech synthesis systems the generation of a unit inventory is a tedious task. Hovewer, some applications demand multiple voices. A semiautomatic method to generate unit inventories is proposed. The units are segmented out of carrier phrases by means of dynamic time warping alignment with a synthesized utterance. This requires at least one existing inventory. The availability o...

This paper presents a matrix factorization based feature for audio to score alignment. We show that in combination with dynamic time warping it can compete with chroma vectors, which are the probably most frequently used approach within the last years. A great benefit of the factorizationbased feature is its sparseness, which can be used in order to transform it into a symbolic representation. ...

Most formal rehabilitation facilities are situated in a hospital or care center setting, which may not always be conveniently accessible for patients, especially those in geographically isolated areas. Home-based rehabilitation has potential to offer greater accessibility and thus increase consistent uptake. In addition, the exercise performed in conventional rehabilitation contexts may be insu...

Dynamic Time Warping (DTW) is commonly used in gesture recognition tasks in order to tackle the temporal length variability of gestures. In the DTW framework, a set of gesture patterns are compared one by one to a maybe infinite test sequence, and a query gesture category is recognized if a warping cost inferior to a given value is found within the test sequence. Nevertheless, either taking one...

I reconsider asymmetrically warped compactifications, in which time and space have different warp factors. I call such compactifications time warps if the bulk geometry has neither entropy nor temperature. I provide an example starting from an asymptotically AdS5 spacetime where the speed of light, measured in a fixed coordinate system, is larger near the boundary than it is deep in the interio...