Guest editorial: selected papers from ICIMCS 2013

Multimedia Systems -     

软件测试方法简述与展望

软件测试是一门重要的、具有广泛应用的学科,随着应用系统的不同,软件的测试方法呈现多样性。该文从概念、基本问题、方法、任务等各个方面进行评述,讨论了待解决的问题,并对今后的发展方向进行了展望。     

面向Agent软件工程:现状、挑战与展望

面向Agent软件工程是近年出现的一种新颖软件开发范型,它借助于Agent技术来支持软件系统的工程化开发,被视为是支持复杂软件系统开发的一种重要方法和手段,受到了学术界和工业界的高度关注和重视。尽管在过去十年多的时间里面向Agent软件工程的研究取得了诸多进展,但其技术潜力尚有待进一步发挥,走向大规模工业化应用仍面临诸多问题和挑战。在分析面向Agent软件工程产生背景和技术特点的基础上,从方法、过程和工具三个不同的角度,综述了面向Agent软件工程的研究现状,识别和分析了它当前所面临的一组关键挑战,展望和讨论了其未来的研究方向。     

State-of-the-Art Performance in Text-Independent Speaker Verification Through Open-Source Software

This paper illustrates an evolution in state-of-the-art speaker verification by highlighting the contribution from newly developed techniques. Starting from a baseline system based on Gaussian mixture models that reached state-of-the-art performances during the NIST'04 SRE, final systems with new intersession compensation techniques show a relative gain of around 50%. This work highlights that a key element in recent improvements is still the classical maximum a posteriori (MAP) adaptation, while the latest compensation methods have a crucial impact on overall performances. Nuisance attribute projection (NAP) and factor analysis (FA) are examined and shown to provide significant improvements. For FA, a new symmetrical scoring (SFA) approach is proposed. We also show further improvement with an original combination between a support vector machine and SFA. This work is undertaken through the open-source ALIZE toolkit.     

Software testing: A selected annotated bibliography

A collection of 69 references drawn from books, papers and conference proceedings on the subject of software testing is presented. Each reference is accompanied by a paragraph describing its contents. The aim when selecting the references was to minimize the number and maximize the coverage of the subject. For this reason, the bibliography is primarily intended for the researcher or practitioner who is relatively new to the subject. The bibliography is organized according to the following sections: general introductions; background; testing methods; experimental studies; and tools.