Sentiment Analysis in Parliamentary Proceedings
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Steven Grijzenhout
Abstract
This chapter addresses the question whether opinion-mining techniques can successfully be used to automatically retrieve political viewpoints from parliamentary proceedings. Two specific preprocessing tasks were identified and systematically evaluated: automatically determining subjectivity in the publications and automatically determining the semantic orientation of the subjective parts. A corpus of recent parliamentary proceedings was collected and a gold standard annotation was created on both subjectivity and orientation. Following this, a number of models based on subjectivity lexicons and machine-learning algorithms were evaluated. Machine-learning algorithms perform best, but methods based on subjectivity lexicons also provide promising results. Based on these results we can conclude that opinion-mining techniques applied to political data score just as well as the state of the art in other more traditional domains of opinion mining like product reviews and blogs.
Abstract
This chapter addresses the question whether opinion-mining techniques can successfully be used to automatically retrieve political viewpoints from parliamentary proceedings. Two specific preprocessing tasks were identified and systematically evaluated: automatically determining subjectivity in the publications and automatically determining the semantic orientation of the subjective parts. A corpus of recent parliamentary proceedings was collected and a gold standard annotation was created on both subjectivity and orientation. Following this, a number of models based on subjectivity lexicons and machine-learning algorithms were evaluated. Machine-learning algorithms perform best, but methods based on subjectivity lexicons also provide promising results. Based on these results we can conclude that opinion-mining techniques applied to political data score just as well as the state of the art in other more traditional domains of opinion mining like product reviews and blogs.
Chapters in this book
- Prelim pages i
- Table of contents v
- Foreword vii
- Positions of Parties and Political Cleavages between Parties in Texts 1
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PART I. Computational Methods for Political Text Analysis
- PART I: Introduction 23
- Comparing the Position of Canadian Political Parties using French and English Manifestos as Textual Data 27
- Leveraging Textual Sentiment Analysis with Social Network Modelling 47
- Issue Framing and Language Use in the Swedish Blogosphere 71
- Text to Ideology or Text to Party Status? 93
- Sentiment Analysis in Parliamentary Proceedings 117
- The Qualitative Analysis of Political Documents 135
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PART II. From Text to Political Positions via Discourse Analysis
- PART II: Introduction 163
- The Potential of Narrative Strategies in the Discursive Construction of Hegemonic Positions and Social Change 171
- Christians, Feminists, Liberals, Socialists, Workers and Employers 189
- Between Union and a United Ireland 207
- Systematic Stylistic Analysis 225
- Participation and recontextualisation in New Media 245
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PART III. Converging methods
- PART III: Introduction 271
- From Text to the Construction of Political Party Landscapes 275
- From Text to Political Positions 297
- About the authors 325
- Index 331
Chapters in this book
- Prelim pages i
- Table of contents v
- Foreword vii
- Positions of Parties and Political Cleavages between Parties in Texts 1
-
PART I. Computational Methods for Political Text Analysis
- PART I: Introduction 23
- Comparing the Position of Canadian Political Parties using French and English Manifestos as Textual Data 27
- Leveraging Textual Sentiment Analysis with Social Network Modelling 47
- Issue Framing and Language Use in the Swedish Blogosphere 71
- Text to Ideology or Text to Party Status? 93
- Sentiment Analysis in Parliamentary Proceedings 117
- The Qualitative Analysis of Political Documents 135
-
PART II. From Text to Political Positions via Discourse Analysis
- PART II: Introduction 163
- The Potential of Narrative Strategies in the Discursive Construction of Hegemonic Positions and Social Change 171
- Christians, Feminists, Liberals, Socialists, Workers and Employers 189
- Between Union and a United Ireland 207
- Systematic Stylistic Analysis 225
- Participation and recontextualisation in New Media 245
-
PART III. Converging methods
- PART III: Introduction 271
- From Text to the Construction of Political Party Landscapes 275
- From Text to Political Positions 297
- About the authors 325
- Index 331
