Search Results - subject:"Unsupervised"

Firms' knowledge profiles : mapping patent data with unsupervised learningOpen access

Suominen, Arho; Toivanen, Hannes; Seppänen, Marko - In: Technological forecasting & social change : an … 115 (2017), pp. 131-142

Persistent link: https://www.econbiz.de/10011881607

Analysis of feature selection measures for text categorisation

Amala Bai, V. Mary - In: International journal of enterprise network management 8 (2017) 1, pp. 45-60

Persistent link: https://www.econbiz.de/10011762365

Developing news-based Economic Policy Uncertainty index with unsupervised machine learning

Azqueta-Gavaldón, Andrés - In: Economics letters 158 (2017), pp. 47-50

Persistent link: https://www.econbiz.de/10011849786

Topics in High-Dimensional Unsupervised Learning.

Guo, Jian - 2011

improve interpretabilityof high-dimensional unsupervised learning methods. First, we introduce apairwise variable selection …

Persistent link: https://www.econbiz.de/10009477339

Pointwise adaptive estimation for quantile regression

Reiß, Markus; Rozenholc, Yves; Cuenod, Charles A. - 2011

A nonparametric procedure for quantile regression, or more generally nonparametric M-estimation, is proposed which is completely data-driven and adapts locally to the regularity of the regression function. This is achieved by considering in each point M-estimators over different local...

Persistent link: https://www.econbiz.de/10010281536

Pointwise adaptive estimation for quantile regression

Reiß, Markus; Rozenholc, Yves; Cuenod, Charles A. - Sonderforschungsbereich 649: Ökonomisches Risiko, … - 2011

Persistent link: https://www.econbiz.de/10009024914

Towards High Performance Text Mining: A TextRank-based Method for Automatic Text Summarization

Yu, Shanshan; Su, Jindian; Li, Pengfei; Wang, Hao - In: International Journal of Grid and High Performance … 8 (2016) 2, pp. 58-75

As a typical unsupervised learning method, the TextRank algorithm performs well for large-scale text mining, especially …

Persistent link: https://www.econbiz.de/10012045026

Classification of Polarity of Opinions Using Unsupervised Approach in Tourism Domain

Bhatnagar, Vishal; Goyal, Mahima - In: International Journal of Rough Sets and Data Analysis … 3 (2016) 4, pp. 68-78

approach, but the authors are using an unsupervised dictionary based approach to classify the opinions. The scores of the …

Persistent link: https://www.econbiz.de/10012047367

Discovering shilling groups in a real e-commerce platform

Wang, Youquan; Wu, Zhiang; Bu, Zhan; Cao, Jie; Yang, Dun - In: Online Information Review 40 (2016) 1, pp. 62-78

an unsupervised ranking method based on principal component analysis (PCA) is presented for identifying shilling groups … proposed unsupervised method are carefully validated. Originality/value – This paper presents a set of solutions for … generation, behavioral features definition and unsupervised detection. …

Persistent link: https://www.econbiz.de/10014966593

Perspective teoretice şi metodologice în modelarea agenţilor autonomi

Şerban, Broche - In: Revista OEconomica (2009) 03

The paper analyzes the way in which evolved the concept of autonomous agent in the cognition sciences [the functional and symbolic approach, the behavioural approach and morphodynamic approach.]

Persistent link: https://www.econbiz.de/10008464141