82 research outputs found

    Graph-RAT programming environment

    Get PDF
    Graph-RAT is a new programming environment specializing in relational data mining. It incorporates a number of different techniques into a single framework for data collection, data cleaning, propositionalization, and analysis. The language is functional where algorithms are executed over arbitrary sub-graphs of the data. Analytical results can be conducted using collaborative filtering or machine learning techniques. The example algorithms are under BSD license

    MIR task and evaluation techniques

    Get PDF
    Existing tasks in MIREX have traditionally focused on low-level MIR tasks working with flat (usually DSP-only) ground-truth. These evaluation techniques, however, can not evaluate the increasing number of algorithms that utilize relational data and are not currently utilizing the state of the art in evaluating ranked or ordered output. This paper summarizes the state of the art in evaluating relational ground-truth. These components are then synthesized into novel evaluation techniques that are then applied to 14 concrete music document retrieval tasks, demonstrating how these evaluation techniques can be applied in a practical context

    Linear-time graph triples census algorithm under assumptions typical of social networks

    Get PDF
    A graph triples census is a histogram of all possible sets of three vertici (called a triple) from a graph. Graph triples census have been in active use in sociology for over 50 years. The earliest paper using this approach is by Holland and Leinhardt [1]. This gives a general description of the structure of directed graphs in a fixed length vector. Since this time, this analytic tool has been widely used in social network analysis. A summary of important papers using this approach, both as end product and as a component of further analysis, are in[2]

    Graph-RAT: Combining data sources in music recommendation systems

    Get PDF
    The complexity of music recommendation systems has increased rapidly in recent years, drawing upon different sources of information: content analysis, web-mining, social tagging, etc. Unfortunately, the tools to scientifically evaluate such integrated systems are not readily available; nor are the base algorithms available. This article describes Graph-RAT (Graph-based Relational Analysis Toolkit), an open source toolkit that provides a framework for developing and evaluating novel hybrid systems. While this toolkit is designed for music recommendation, it has applications outside its discipline as well. An experiment—indicative of the sort of procedure that can be configured using the toolkit—is provided to illustrate its usefulness

    Models for operators with trivial residual space

    Get PDF

    There he goes:the Influencer–Sports Journalism of Fabrizio Romano on Twitter and Its Implications for Professionalism

    Get PDF
    Fabrizio Romano’s sizeable social media followings and role as influencer–sports journalist warrant attention. Romano, known for his catchphrase ‘Here We Go’, specialises in football transfers and produces multi-platform content. This study investigates how Romano’s Twitter practice informs professional understandings of sports journalism. A content and textual analysis (n = 494) was conducted of one month of Romano’s tweets and replies. Tweets were categorised according to markers of sports journalism practice. Results show Romano is professionalising sports journalism on social media and subverting understandings of personal branding through favouring objective news over subjective opinion and focusing on the professional rather than the personal. Romano’s transfer news prioritises major European football clubs, which is consistent with the trajectory of sports journalism on digital platforms. Play-by-play commentary is a minor aspect of Romano’s Twitter output, which contributes to the debate on the significance of game coverage to contemporary sports journalism. Tweets did not mention the human rights issues surrounding the World Cup starting in Qatar, even though this was a key talking point. This finding suggests that the normative assumption that sports journalists should scrutinise power and/or highlight social injustice does not always apply to all practitioners in all contexts, particularly where ultra-specialist settings are concerned

    CHE 682-102: Polymer Structure and Properties

    Get PDF
    corecore