نتایج جستجو برای: hierarchical analysis

تعداد نتایج: 2886433  

2010
Wahyu Hidayat Ali Yeon Md Shakaff Mohd Noor Ahmad Abdul Hamid Adom

Presently, the quality assurance of agarwood oil is performed by sensory panels which has significant drawbacks in terms of objectivity and repeatability. In this paper, it is shown how an electronic nose (e-nose) may be successfully utilised for the classification of agarwood oil. Hierarchical Cluster Analysis (HCA) and Principal Component Analysis (PCA), were used to classify different types ...

2018
Di Lu Chuntao Ding Jinliang Xu Shangguang Wang

The Internet of Things (IoT) generates lots of high-dimensional sensor intelligent data. The processing of high-dimensional data (e.g., data visualization and data classification) is very difficult, so it requires excellent subspace learning algorithms to learn a latent subspace to preserve the intrinsic structure of the high-dimensional data, and abandon the least useful information in the sub...

2002
Mikko Honkala Martti Valtonen Jarmo Virtanen

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1995
Alain Ketterlin Pierre Gançarski Jerzy J. Korczak

This paper examines the problem of clustering a sequence of objects that cannot be described with a predeened list of attributes (or variables). In many applications, such a crisp representation cannot be determined. An extension of the traditionnal propositionnal formalism is thus proposed, which allows objects to be represented as a set of components. The algorithm used for clustering is brie...

Journal: :CoRR 1997
Yaakov Yaari

We propose a method for segmentation of ex-pository texts based on hierarchical agglomera-tive clustering. The method uses paragraphs as the basic segments for identifying hierarchical discourse structure in the text, applying lexical similarity between them as the proximity test. Linear segmentation can be induced from the identified structure through application of two simple rules. However t...

Journal: :Pattern Recognition 2011
Rudi Cilibrasi Paul M. B. Vitányi

The Minimum Quartet Tree Cost problem is to construct an optimal weight tree from the 3 (

1996
Peter Bajcsy Narendra Ahuja

This paper presents a clustering algorithm for dot patterns in n-dimensional space. The n-dimensional space often represents a multivariate (nf -dimensional) function in a ns-dimensional space (ns + nf = n). The proposed algorithm decomposes the clustering problem into the two lower dimensional problems. Clustering in nf -dimensional space is performed to detect the sets of dots in n-dimensiona...

2008
Sangkyum Kim Xin Jin Jiawei Han

For the past decade, the need of multimedia mining has increased tremendously, especially in image data due to inexpensive digital technologies and fast mounting of image data. In this paper, we, first, show an algorithm, SpIBag (Spatial Item Bag Mining), which discovers frequent spatial patterns in images. Due to the properties of image data, SpIBag considers a bag of items together with a spa...

Journal: :محیط زیست طبیعی 0
مظاهر معین الدینی دانشجوی دکتری محیط زیست، دانشکده منابع طبیعی و علوم دریایی، دانشگاه تربیت مدرس نعمت اله خراسانی استاد دانشکده منابع طبیعی، دانشگاه تهران افشین دانه کار دانشیار دانشکده منابع طبیعی، دانشگاه تهران علی اصغر درویش صفت استاد دانشکده منابع طبیعی، دانشگاه تهران

site selection is an important and necessary issue for waste management in fast-growing regions. because of the complexity of waste management systems, the selection of the appropriate solid waste landfill site requires consideration of multiple alternative solutions and evaluation criteria. this paper addresses the sitting of a new landfill using a multi-criteria decision analysis (mcda) and o...

Journal: :JSW 2011
Yueping Li Yunming Ye Xiaolin Du

The hierarchical clustering methods based on vertex similarity have the advantage that global evaluation can be incorporated for community discovery. Vertex similarity metric is the most important part of these methods. However, the existing methods do not perform well for community discovery compared with the state-ofthe-art algorithms. In this paper, we propose a new vertex similarity metric ...

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