نتایج جستجو برای: spatial clustering

تعداد نتایج: 457055  

Journal: :Monthly Notices of the Royal Astronomical Society 2006

Journal: :IOP Conference Series: Materials Science and Engineering 2021

Journal: :Journal of Software Engineering and Applications 2010

Journal: :Applied sciences 2022

5G is the new generation of 3GPP-based cellular communications that provides remarkable connectivity capabilities and extreme network performance to mobile operators users worldwide. The rollout process a capacity layer (cell) on top existing previous technologies complex requires time manual effort from radio planning-engineering teams parameter optimization teams. When it comes optimum config...

2010
Xueping Zhang Yawei Liu Jiayao Wang Haohua Du

Spatial Clustering with Obstacles Constraints (SCOC) has been a new topic in Spatial Data Mining (SDM). Spatial Obstructed Distance (SOD) is the key to SCOC. The obstacles constraint is generally ignored in computing distance between two points, and it leads to the clustering result which is of no value, so obstructed distance has a great effect upon clustering result. In this paper, we propose...

2003
J. C. Noordam W. H. A. M. van den Broek L. M. C. Buydens

Fuzzy C-means (FCM) is an unsupervised clustering technique that is often used for the unsuper-vised segmentation of multivariate images. In traditional FCM the clustering is based on spectral information only and the geometrical relationship between neighbouring pixels is not used in the clustering procedure. In this paper, the spatially guided FCM (SG-FCM) algorithm is presented which segment...

2003
J. C. Noordam

Fuzzy C-means (FCM) is an unsupervised clustering technique and is often used for the unsupervised segmentation of multivariate images. In traditional FCM the clustering is based on spectral information only and geometrical relationship between neighbouring pixels is not used in the clustering procedure. In this paper, the Spatially Guided FCM (SGFCM) algorithm is presented which segments multi...

2009
Yan Xu Toshihiro Nishimura

Segmentation in ultrasound images is challenging due to the interference from speckle noise and fuzziness of boundaries. In this paper, a segmentation scheme using fuzzy c-means (FCM) clustering incorporating both intensity and texture information of images is proposed to extract breast lesions in ultrasound images. Firstly, the nonlinear structure tensor, which can facilitate to refine the edg...

2009
Elizabeth Currid Sarah Williams

Social scientists have long sought to understand the cultural production system. Such research elucidates the importance of the social milieu to cultural industries. We capture aggregate patterns of the social milieu and the geographical form it takes. We use a unique data set, Getty Images and geo-coded over 6000 events and 300,000 photographic images taken in Los Angeles and New York City, an...

Journal: :CoRR 2013
Mohammed Otair

Different spatial objects that vary in their characteristics, such as molecular biology and geography, are presented in spatial areas. Methods to organize, manage, and maintain those objects in a structured manner are required. Data mining raised different techniques to overcome these requirements. There are many major tasks of data mining, but the mostly used task is clustering. Data set withi...

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