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Unsupervised Keyword Extraction Using the GoW Model and Centrality Scores [chapter]

Elissavet Batziou, Ilias Gialampoukidis, Stefanos Vrochidis, Ioannis Antoniou, Ioannis Kompatsiaris
2017 Lecture Notes in Computer Science  
To that end we present graph-based models for keyword extraction, in order to compare the Bag of Words model with the Graph of Words model in the keyword extraction problem.  ...  We conclude that term-frequency scores (BoW model) are useful only in the case of less structured text, while in more structured text documents, the order of words plays a key role and graph-based models  ...  Acknowledgements This work was supported by the projects H2020-645012 (KRISTINA) and H2020-700024 (TENSOR), funded by the European Commission.  ... 
doi:10.1007/978-3-319-70284-1_26 fatcat:vxrzuo6365dr7iipqxxe5ps3hu

A survey on different dimensions for graphical keyword extraction techniques: Issues and Challenges

Muskan Garg
2021 Artificial Intelligence Review  
It is observed that the Graphical Keyword Extraction Techniques (GKET) use Graph of Words (GoW) in literature for analysis in different dimensions.  ...  in approaches over GoW for GKET, and the ranking of nodes in GoW.  ...  The keyword extraction techniques can be supervised and unsupervised. However, the supervised keyword extraction techniques are out of the scope of this article.  ... 
doi:10.1007/s10462-021-10010-6 pmid:33907346 pmcid:PMC8062621 fatcat:a4boojb4vrebtkoqwn3l66zo7e

A Graph Degeneracy-based Approach to Keyword Extraction

Antoine Tixier, Fragkiskos Malliaros, Michalis Vazirgiannis
2016 Proceedings of the 2016 Conference on Empirical Methods in Natural Language Processing  
We operate a change of paradigm and hypothesize that keywords are more likely to be found among influential nodes of a graph-ofwords rather than among its nodes high on eigenvector-related centrality measures  ...  Our methods strongly and significantly outperform all baselines on two datasets (short and medium size documents), and reach best performance on the third one (long documents).  ...  In this study, we focus on the task of unsupervised single-document keyword extraction.  ... 
doi:10.18653/v1/d16-1191 dblp:conf/emnlp/TixierMV16 fatcat:f75ctoxtandcrkdplufmg3jooq

Fusing Document, Collection and Label Graph-based Representations with Word Embeddings for Text Classification

Konstantinos Skianis, Fragkiskos Malliaros, Michalis Vazirgiannis
2018 Proceedings of the Twelfth Workshop on Graph-Based Methods for Natural Language Processing (TextGraphs-12)  
Based on this formulation, the importance of a term is determined by weighting the corresponding node in the document, collection and label graphs, using node centrality criteria.  ...  Contrary to the traditional Bag-of-Words approach, we consider the Graph-of-Words (GoW) model in which each document is represented by a graph that encodes relationships between the different terms.  ...  extract representative keywords and sentences.  ... 
doi:10.18653/v1/w18-1707 dblp:conf/textgraphs/SkianisMV18 fatcat:ayhjbbdudbdmnm3tkqc7qzvrza

sCAKE: Semantic Connectivity Aware Keyword Extraction [article]

Swagata Duari, Vasudha Bhatnagar
2018 pre-print
Combination of the proposed graph construction and scoring methods leads to a novel, parameterless keyword extraction method (sCAKE) based on semantic connectivity of words in the document.  ...  We eliminate the need of NLP tools by using a statistical filter to identify candidate keywords before constructing the graph.  ...  Acknowledgement The authors acknowledge the financial support (Grant number RC/2015/9677) awarded by University of Delhi, India for this research. References  ... 
doi:10.1016/j.ins.2018.10.034 arXiv:1811.10831v1 fatcat:rurmddggjngtxo4nkxer5aqilq

Methadone and buprenorphine for the management of opioid dependence: a systematic review and economic evaluation

M Connock, A Juarez-Garcia, S Jowett, E Frew, Z Liu, R Taylor, A Fry-Smith, E Day, N Lintzeris, T Roberts, A Burls, R Taylor
2007 Health Technology Assessment  
Emma Frew contributed to the review of economic evaluations, collected and summarised the cost data for use in the model and contributed to the definition of health states.  ...  Rebecca Taylor undertook the review of the previous economic evaluations, applied the inclusion and exclusion criteria, extracted data and appraised studies.  ...  Data were extracted by one reviewer using a pre-designed data extraction form and were independently check by a second reviewer.  ... 
doi:10.3310/hta11090 pmid:17313907 fatcat:pj3cwqregffznizvu3g5nqaw5a

Preface [chapter]

Quinette Louw, Stellenbosch University
2021 Human Functioning, Technology and Health  
studies in South African settings': Anastasia Rossouw, Tasneem Hartley and Thandi Conradie.  ...  THEME 5 Illuminating social determinants Acknowledgements The authors wish to acknowledge the following members of the South Africa Stroke Guideline project team, who were involved in formulating the  ...  Synthesis of results The extracted data were summarised narratively using text and tables.  ... 
doi:10.4102/aosis.2020.bk85.00 fatcat:rrb5e2uqr5exddaj3oy3po664a

Stroke rehabilitation services in Africa – Challenges and opportunities: A scoping review of the literature [chapter]

Nassib Tawa, Jomo Kenyatta University of Agriculture & Technology, Anthea Rhoda, Yolandi Brink, Gerard Urimubenshi, Marlie Giljam-Enright, Maria Y. Charumbira, Sjan-Mari van Niekerk, Quinette Louw, Stellenbosch University, University of the Western Cape, Stellenbosch University (+5 others)
2021 Human Functioning, Technology and Health  
studies in South African settings': Anastasia Rossouw, Tasneem Hartley and Thandi Conradie.  ...  THEME 5 Illuminating social determinants Acknowledgements The authors wish to acknowledge the following members of the South Africa Stroke Guideline project team, who were involved in formulating the  ...  Synthesis of results The extracted data were summarised narratively using text and tables.  ... 
doi:10.4102/aosis.2020.bk85.01 fatcat:af3ipktfhvepbnlfhyppus46sa

Analysis of room transfer function and reverberant signal statistics

Eleftheria Georganti, John Mourjopoulos, Finn Jacobsen
2008 Journal of the Acoustical Society of America  
This study is about the use of an auditory model to extract multiple pitches from polyphonic music signals.  ...  Starting from an auditory front-end which extracts low-level ͑e.g., spectral shape, mel frequency cepstral coefficients͒ and midlevel features such as onsets and beats, an unsupervised categorisation process  ...  a central gap in the platform.  ... 
doi:10.1121/1.2935346 fatcat:lxgnqr6tozajhge3ydet3xomam

A virtual auditory environment for investigating the auditory signal processing of realistic sounds

Sylvain Favrot, Jörg M. Buchholz
2008 Journal of the Acoustical Society of America  
This study is about the use of an auditory model to extract multiple pitches from polyphonic music signals.  ...  Starting from an auditory front-end which extracts low-level ͑e.g., spectral shape, mel frequency cepstral coefficients͒ and midlevel features such as onsets and beats, an unsupervised categorisation process  ...  a central gap in the platform.  ... 
doi:10.1121/1.2936003 fatcat:ontu6yamdvgbnooet5fe36fm74

Electricity price forecasting: A review of the state-of-the-art with a look into the future

Rafał Weron
2014 International Journal of Forecasting  
This review article aims to explain the complexity of available solutions, their strengths and weaknesses, and the opportunities and threats that the forecasting tools offer or that may be encountered.  ...  The paper also looks ahead and speculates on the directions EPF will or should take in the next decade or so.  ...  Special thanks for feedback on earlier versions of the manuscript and computational assistance go to Katarzyna Maciejowska, Paweł-Maryniak and Jakub Nowotarski.  ... 
doi:10.1016/j.ijforecast.2014.08.008 fatcat:gn47m4pvybgt5mx7c37fxp4tye

Temporal suppression and augmentation of click-evoked otoacoustic emissions

Sarah Verhulst, James M. Harte, Torsten Dau
2008 Hearing Research  
The gradient equation for the acoustic intensity is confirmed numerically by comparison with calculations of the intensity vector using a particle-tracing model and a ray-tracing model.  ...  It was used to predict the effectiveness of ANC. This paper discusses the development of the new models, the results of the validation tests and ANC predictions. 11:20 5aAAa7.  ...  This study is about the use of an auditory model to extract multiple pitches from polyphonic music signals.  ... 
doi:10.1016/j.heares.2008.09.008 pmid:18926894 fatcat:bijdlpxpzfcsrjeefayvvu4pl4

Across‐frequency processes involved in auditory detection of coloration

Jörg M. Buchholz, Paris Kerketsos
2008 Journal of the Acoustical Society of America  
The gradient equation for the acoustic intensity is confirmed numerically by comparison with calculations of the intensity vector using a particle-tracing model and a ray-tracing model.  ...  It was used to predict the effectiveness of ANC. This paper discusses the development of the new models, the results of the validation tests and ANC predictions. 11:20 5aAAa7.  ...  This study is about the use of an auditory model to extract multiple pitches from polyphonic music signals.  ... 
doi:10.1121/1.2935741 fatcat:acaporn5qvgb5coauovqkbv6lq

Temporal suppression and augmentation of click‐evoked otoacoustic emissions

Sarah Verhulst, James M. Harte, Torsten Dau
2008 Journal of the Acoustical Society of America  
The gradient equation for the acoustic intensity is confirmed numerically by comparison with calculations of the intensity vector using a particle-tracing model and a ray-tracing model.  ...  It was used to predict the effectiveness of ANC. This paper discusses the development of the new models, the results of the validation tests and ANC predictions. 11:20 5aAAa7.  ...  This study is about the use of an auditory model to extract multiple pitches from polyphonic music signals.  ... 
doi:10.1121/1.2935694 fatcat:z6yidzqqendznbmrczb3woaiv4

Cross‐spectral synergy and consonant identification

Thomas Ulrich Christiansen, Steven Greenberg
2008 Journal of the Acoustical Society of America  
The gradient equation for the acoustic intensity is confirmed numerically by comparison with calculations of the intensity vector using a particle-tracing model and a ray-tracing model.  ...  It was used to predict the effectiveness of ANC. This paper discusses the development of the new models, the results of the validation tests and ANC predictions. 11:20 5aAAa7.  ...  This study is about the use of an auditory model to extract multiple pitches from polyphonic music signals.  ... 
doi:10.1121/1.2935680 fatcat:znwocm35unasharfwbcap5omim
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