Vocal fry is a voice quality that often appears in relaxed voices indicating low tension, or in pressed voices expressing attitudes/feelings of surprise, admiration and suffering. We propose a set of acoustic measures for automatically detecting vocal fry segments in speech utterances. In order to deal with vocal fry utterances with very low fundamental frequencies, where classic short-term ana...

A niching technique is an important component of the genetic algorithm when attempting to solve problems that have multiple optimal solutions. Traditional niching techniques use an explicit concept of similarity to perform the actual niche formation. Often, the definition of this similarity function is difficult or requires a priori knowledge of the problem domain. This paper investigates the u...

Abstract Most types of crimes show seasonal fluctuations but the difference and similarity periodicity between different are understudied. Interpreting seasonality crime formulating clusters that share similar characteristics would help identify common underlying factors revise patterns patrolling monitoring to enable sustained management control strategies. This study proposes a new methodolog...

the common reed (phragmites australis) is a perennial weed with the largest geographical distribution of any flowering plant in the world. in this study, 39 populations of common reed were collected and random amplified polymorphic dna (rapd) markers were used to characterize the genetic diversity among these populations. the 16 primers used in this study, amplified 149 scorable rapd bands amon...