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Article
Publication date: 1 June 2004

Dr rer. nat.

Abstract

Details

Anti-Corrosion Methods and Materials, vol. 51 no. 3
Type: Research Article
ISSN: 0003-5599

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Article
Publication date: 9 January 2019

Hendri Murfi, Furida Lusi Siagian and Yudi Satria

The purpose of this paper is to analyze topics as alternative features for sentiment analysis in Indonesian tweets.

Abstract

Purpose

The purpose of this paper is to analyze topics as alternative features for sentiment analysis in Indonesian tweets.

Design/methodology/approach

Given Indonesian tweets, the processes of sentiment analysis start by extracting features from the tweets. The features are words or topics. The authors use non-negative matrix factorization to extract the topics and apply a support vector machine to classify the tweets into its sentiment class.

Findings

The authors analyze the accuracy using the two-class and three-class sentiment analysis data sets. Both data sets are about sentiments of candidates for Indonesian presidential election. The experiments show that the standard word features give better accuracies than the topics features for the two-class sentiment analysis. Moreover, the topic features can slightly improve the accuracy of the standard word features. The topic features can also improve the accuracy of the standard word features for the three-class sentiment analysis.

Originality/value

The standard textual data representation for sentiment analysis using machine learning is bag of word and its extensions mainly created by natural language processing. This paper applies topics as novel features for the machine learning-based sentiment analysis in Indonesian tweets.

Details

International Journal of Intelligent Computing and Cybernetics, vol. 12 no. 1
Type: Research Article
ISSN: 1756-378X

Keywords

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Article
Publication date: 1 August 1974

On July 3, 1974, Dr Herbert Grunewald succeeded Professor Dr Kurt Hansen as chairman of the Board of Management of Bayer AG, Leverkusen. Professor Hansen was appointed…

Abstract

On July 3, 1974, Dr Herbert Grunewald succeeded Professor Dr Kurt Hansen as chairman of the Board of Management of Bayer AG, Leverkusen. Professor Hansen was appointed chairman of the Supervisory Board in succession to Professor Dr Otto Bayer, now honorary chairman of this Board.

Details

Pigment & Resin Technology, vol. 3 no. 8
Type: Research Article
ISSN: 0369-9420

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Article
Publication date: 1 February 1991

W. Tauchert, J. Hospodarsky, J. Krause, C. Schneider and C. Womser‐Hacker

This paper reports the results of the information retrieval project PADOK‐II. This project, which began in November 1987, is being carried out by the Linguistic…

Abstract

This paper reports the results of the information retrieval project PADOK‐II. This project, which began in November 1987, is being carried out by the Linguistic Information Science Group of the University of Regensburg (LIR) in cooperation with the German Patent Office (GPO) and is sponsored by the German Ministry for Research and Technology. The long‐term aim is to integrate artificial intelligence into information retrieval research without neglecting traditional information retrieval methodology. In PADOK‐II an information retrieval system is considered which indexes documents rather shallowly using free‐text or morphological components. A large‐scale retrieval test has been carried out, based on the German Patent Information System. Answers have been obtained to some 400 queries made by 10 users in simulated real‐life situations. These results have been used to attempt to answer the question: ‘How do the linguistically‐based functions of an indexing system contribute to its performance?’ As a spinoff of this test, the influence of document size and structure was studied with a view to identifying the most reasonable basic content for a German Patent Information System.

Details

Online Review, vol. 15 no. 2
Type: Research Article
ISSN: 0309-314X

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Book part
Publication date: 6 June 2006

Céleste M. Brotheridge is a professor of organizational behaviour with the Départment d'organisation et ressources humaines in the École des sciences de la gestion at the…

Abstract

Céleste M. Brotheridge is a professor of organizational behaviour with the Départment d'organisation et ressources humaines in the École des sciences de la gestion at the Université du Québec à Montréal. She completed her PhD in organizational behavior and research methods at the University of Manitoba. Dr. Brotheridge publishes and conducts research primarily in the areas of burnout, emotions, and bullying in the workplace. She is the chair of the Organizational Behaviour Division of the Administrative Sciences Association of Canada and a member of the editorial boards of the International Journal of Stress Management and the Journal of Managerial Psychology.

Details

Individual and Organizational Perspectives on Emotion Management and Display
Type: Book
ISBN: 978-1-84950-411-9

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Article
Publication date: 1 November 2006

Stephan Lukosch and Till Schümmer

During oral exams at the German distance learning university, we noticed that students fear that they will be faced with questions that they have not anticipated. In our…

Abstract

During oral exams at the German distance learning university, we noticed that students fear that they will be faced with questions that they have not anticipated. In our opinion, this is mainly because students have no chance to train and thereby gather positive experiences with exam situations as they are distributed all over Germany and thus it is difficult for them to meet each other. In this paper, we present a design space of 23 learning gadgets, i.e. tools that support collaborative learning, to allow collaborative exam preparation in peer‐based distributed student groups. We discuss this design space according to eight dimensions of the concept of FLOW (Csikszentmihalyi, 1991) that constitutes enjoyable situations. Two of the learning gadgets were implemented and integrated in the CURE environment, a web‐based collaborative learning platform that was developed to support different collaborative learning scenarios, e.g. collaborative exercises or virtual seminars. We discuss these learning gadgets in more detail and show how they promise an enjoyable collaborative exam preparation.

Details

Interactive Technology and Smart Education, vol. 3 no. 4
Type: Research Article
ISSN: 1741-5659

Keywords

Content available
Article
Publication date: 23 January 2009

Abstract

Details

Aircraft Engineering and Aerospace Technology, vol. 81 no. 1
Type: Research Article
ISSN: 0002-2667

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Book part
Publication date: 24 November 2010

Samirah Al-Saleh <sameeraalsaleh@hotmail.com> is a lecturer in geography and tourism at King Abdul Aziz University, Jeddah, Saudi Arabia. She is also a doctoral candidate…

Abstract

Samirah Al-Saleh <sameeraalsaleh@hotmail.com> is a lecturer in geography and tourism at King Abdul Aziz University, Jeddah, Saudi Arabia. She is also a doctoral candidate in the Faculty of Business and Law at the University of Sunderland, United Kingdom. She has participated in numerous tourism conferences in Saudi Arabia and abroad. She has contributed to the journal, Al Aqiq, in a recent special edition on the topic of domestic tourism in Saudi Arabia.

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Tourism in the Muslim World
Type: Book
ISBN: 978-1-84950-920-6

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Article
Publication date: 1 September 1982

K. Fässler and H. Spähn

4 Heat exchanger experiments To study the performance of the ferritic 18 Cr‐2 Mo steel under actual heat exchanger conditions, large scale model heat exchangers were…

Abstract

4 Heat exchanger experiments To study the performance of the ferritic 18 Cr‐2 Mo steel under actual heat exchanger conditions, large scale model heat exchangers were fabricated. After experiments to fabricate heat exchanger plates under standard stretch‐forming conditions, our investigations were confined to heat exchangers of the tubular type.

Details

Anti-Corrosion Methods and Materials, vol. 29 no. 9
Type: Research Article
ISSN: 0003-5599

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Article
Publication date: 1 July 1940

An explanation is given of the physical factors which govern the influence of the speed of sound on the drag, of an aeroplane, and on its performance. Observing the…

Abstract

An explanation is given of the physical factors which govern the influence of the speed of sound on the drag, of an aeroplane, and on its performance. Observing the processes at the point of stagnation, the criterion for the compressibility influence is the Machs number, the introduction of which is also explained.

Details

Aircraft Engineering and Aerospace Technology, vol. 12 no. 7
Type: Research Article
ISSN: 0002-2667

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