Details

Collaborative Annotation for Reliable Natural Language Processing


Collaborative Annotation for Reliable Natural Language Processing

Technical and Sociological Aspects
1. Aufl.

von: Karën Fort

139,99 €

Verlag: Wiley
Format: EPUB
Veröffentl.: 14.06.2016
ISBN/EAN: 9781119307655
Sprache: englisch
Anzahl Seiten: 192

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Beschreibungen

<p>This book presents a unique opportunity for constructing a consistent image of collaborative manual annotation for Natural Language Processing (NLP).  NLP has witnessed two major evolutions in the past 25 years: firstly, the extraordinary success of machine learning, which is now, for better or for worse, overwhelmingly dominant in the field, and secondly, the multiplication of evaluation campaigns or shared tasks. Both involve manually annotated corpora, for the training and evaluation of the systems.</p> <p>These corpora have progressively become the hidden pillars of our domain, providing food for our hungry machine learning algorithms and reference for evaluation. Annotation is now the place where linguistics hides in NLP. However, manual annotation has largely been ignored for some time, and it has taken a while even for annotation guidelines to be recognized as essential.</p> <p>Although some efforts have been made lately to address some of the issues presented by manual annotation, there has still been little research done on the subject. This book aims to provide some useful insights into the subject.</p> <p>Manual corpus annotation is now at the heart of NLP, and is still largely unexplored. There is a need for manual annotation engineering (in the sense of a precisely formalized process), and this book aims to provide a first step towards a holistic methodology, with a global view on annotation.</p>
Preface ix <p>List of Acronyms xi</p> <p>Introduction xiii</p> <p><b>Chapter 1. Annotating Collaboratively 1</b></p> <p>1.1. The annotation process (re)visited 1</p> <p>1.1.1. Building consensus 1</p> <p>1.1.2. Existing methodologies 3</p> <p>1.1.3. Preparatory work 7</p> <p>1.1.4. Pre-campaign 13</p> <p>1.1.5. Annotation 17</p> <p>1.1.6. Finalization 21</p> <p>1.2. Annotation complexity 24</p> <p>1.2.1. Example overview 25</p> <p>1.2.2. What to annotate? 28</p> <p>1.2.3. How to annotate? 30</p> <p>1.2.4. The weight of the context 36</p> <p>1.2.5. Visualization 38</p> <p>1.2.6. Elementary annotation tasks 40</p> <p>1.3. Annotation tools 43</p> <p>1.3.1. To be or not to be an annotation tool 43</p> <p>1.3.2. Much more than prototypes 46</p> <p>1.3.3. Addressing the new annotation challenges 49</p> <p>1.3.4. The impossible dream tool 54</p> <p>1.4. Evaluating the annotation quality 55</p> <p>1.4.1. What is annotation quality? 55</p> <p>1.4.2. Understanding the basics 56</p> <p>1.4.3. Beyond kappas 63</p> <p>1.4.4. Giving meaning to the metrics 67</p> <p>1.5. Conclusion 75</p> <p><b>Chapter 2. Crowdsourcing Annotation 77</b></p> <p>2.1. What is crowdsourcing and why should we be interested in it? 77</p> <p>2.1.1. A moving target 77</p> <p>2.1.2. A massive success 80</p> <p>2.2. Deconstructing the myths 81</p> <p>2.2.1. Crowdsourcing is a recent phenomenon 81</p> <p>2.2.2. Crowdsourcing involves a crowd (of non-experts) 83</p> <p>2.2.3. “Crowdsourcing involves (a crowd of) non-experts” 87</p> <p>2.3. Playing with a purpose 93</p> <p>2.3.1. Using the players’ innate capabilities and world knowledge 94</p> <p>2.3.2. Using the players’ school knowledge 96</p> <p>2.3.3. Using the players’ learning capacities 97</p> <p>2.4. Acknowledging crowdsourcing specifics 101</p> <p>2.4.1. Motivating the participants 101</p> <p>2.4.2. Producing quality data 107</p> <p>2.5. Ethical issues 109</p> <p>2.5.1. Game ethics 109</p> <p>2.5.2. What’s wrong with Amazon Mechanical Turk? 111</p> <p>2.5.3. A charter to rule them all 113</p> <p>Conclusion 115</p> <p>Appendix 117</p> <p>Glossary 141</p> <p>Bibliography 143</p> <p>Index 163</p>
<p><b>Karën Fort</b> is Associate Professor at University Paris-Sorbonne (Paris 4) working on the STIH (meaning, text, computer science, history) team. Her current research interests include collaborative manual annotation, crowdsourcing and ethics.</p>

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