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In this paper we describe several issues end-users may face when developing web mashup applications in visual language tools like Yahoo! Pipes. We explore how these problems manifest themselves in the conversations users have in the associated discussion forums, and examine the community practices and processes at work in collaborative debugging, and(More)
The recent emergence of web mash-ups and open source software is driving the development of new practices in software and systems development. In this paper we explore novel practices of user-driven innovation through an examination of several case studies which illustrate how users and developers are exploiting the proliferation of open APIs and open(More)
This paper presents analyses of the 2006 and 2007 results of the Music Information Retrieval Evaluation eXchange (MIREX) Audio Cover Song Identification (ACS) tasks. The Music Information Retrieval Evaluation eXchange (MIREX) is a community-based endeavor to scientifically evaluate music information retrieval (MIR) algorithms and techniques. The ACS task(More)
Advances in the science and technology of Music Information Retrieval (MIR) systems and algorithms are dependent on the development of rigorous measures of accuracy and performance such that meaningful comparisons among current and novel approaches can be made. This is the motivating principle driving the efforts of the International Music Information(More)
This paper presents findings of a series of analyses of human similarity judgments from the Symbolic Melodic Similarity, and Audio Music Similarity tasks from the Music Information Retrieval Evaluation Exchange (MIREX) 2006. The categorical judgment data generated by the evaluators is analyzed with regard to judgment stability, inter-grader reliability, and(More)
In this position paper, we discuss the role of abstraction in designing for appropriation. We examine the ways in which varying the level of abstraction of tools affects the ability of users to appropriate them. We close with some words about the difficulties of evaluating the appropriability of systems and how they might be addressed in an experimental(More)
The asymptotically best bandwidth selectors for a kernel density estimator currently require the use of either unappealing higher order kernel pilot estimators or related Fourier transform methods. The point of this paper is to present a methodology which allows the fastest possible rate of convergence with the use of only nonnegative kernel estimators at(More)
We explore the application of a wiki-based technology and style of interaction to enabling the incremental translation of a collaborative application into a number of different languages, including variant English language interfaces better suited to the needs of particular user communities. The development work allows us to explore in more detail the(More)