ID: 53840
Title: Land-cover change detection using one-class support vector machine
Author: Peijun Li and Haiging Xu
Editor: Russell G. Congalton
Year: 2010
Publisher: Asprs, Vol 76, No 3, March 2010
Source: Centre for Ecological Sciences
Reference: None
Subject: Photogrammetric Engineering & Remote Sensing
Keywords: One-Class Support Vector Machine (OCSVM), Change detection,Kappa coefficient
Abstract: Change detection using remote sensing has considerable potential for monitoring land-cover change. Commonly, one specific class of change is of interest in many applications. In this paper, a recently developed one-class classifier, the One-Class Support Vector Machine (OCSVM), is proposed for the change detection of one specific class by multitemporal classification. The classifier only requires samples from the change class of interest as the training data. The performance of the proposed method was evaluated in two applications by comparing with conventional post-classification comparison methods. The results demonstrated the proposed method achieved both higher overall accuracy and higher kappa coefficient than the conventional mthods, and demonstrated good potential for further application. The study also indicated that with the OCSVM, the analysis can focus only on the specific class of interest and does not need to treat other classes, thus providing highly accurate change detection. The OCSVM-based change detection method, as a general and easily implemented method, can be used for applications where only the change of one specific class is of interest.
Location: 231
Literature cited 1: None
Literature cited 2: None
ID: 53839
Title: Impact of modern pollen rain studies from South and Little Andaman islands, to interpret present and past vegetation
Author: Shilpa Singh, Ratan Kar and Asha Khandelwal
Editor: P.Balaram
Year: 2010
Publisher: Current Science Association, Vol 99, No 9, 10 November 2010
Source: Centre for Ecological Sciences
Reference: None
Subject: Current Science
Keywords: Mangroves, palynological analysis, pollen rain, South and Little Andaman islands
Abstract: Studies on modern pollen deposition are important for understanding the relationship between pollen assemblages and the vegetation from which they are derived. In the present study, 30 surface samples collected from different sites of South and Little Andaman Islands were palynologically analysed to determine the composition of pollen deposited on the surface sediments. Samples from South Andaman Island reveal an overall dominance of core mangrove pollen, which is compatible with the present-day vegetation in the area. The Little Andaman pollen record shows a dominance of peripheral mangroves from inhabitated areas and reflects the degradation of core mangroves due to anthroogenic activities.
Location: 241
Literature cited 1: None
Literature cited 2: None
ID: 53838
Title: Behavioural variation in the Mysore slender loris Loris lydekkerianus lydekkerianus
Author: Sindhu Radhakrishna and H.N.Kumara
Editor: P.Balaram
Year: 2010
Publisher: Current Science Association, Vol 99, No 9, 10 November 2010
Source: Centre for Ecological Sciences
Reference: None
Subject: Current Science
Keywords: Behavioural variation, conservation, habitat loss, Mysore slender loris
Abstract: The Mysore slender loris, Loris lydekkerianus lydekkerianus is a noctural strepsirrhine primate endemic to India. As with other lorisine species, there have been few studies on this taxon and much still remains unknown about it. During a 21-month study on a Mysore slender loris population in Tamil Nadu, southern India, we collected data on the ecology and behaviour of 32 identified individuals. Certain aspects of diet and social behaviour of lorises in this population vary from what is already known for this population vary from what is already known for the Mysore slender loris in another part of sourthern India, offering a new perspective into behavioural variations in this taxon. Evidence for behavioural variations in this taxon. Evidence for behavioural variation in this taxon. Evidence for behavioural variation in the Mysore slender loris is significant for two reasons-one, there are few instances of clearly documented intraspecific variations in wild nocturnal primate species and two, this flexibility, it would appear, allows the Mysore slender loris to inhabit and survive in degraded and disturbed habitats across sourthern India, an adaptability that is thus critically linked to its conservation status.
Location: 241
Literature cited 1: None
Literature cited 2: None
ID: 53837
Title: Soil information system for resource management-Tripura as a case study
Author: T. Bhattacharyya, Dipak Sarkar, D.K.Pal, C. Mandal, U. Baruah, B.Telpande and P.H.Vaidya
Editor: P.Balaram
Year: 2010
Publisher: Current Science Association, Vol 99, No 9, 10 November 2010
Source: Centre for Ecological Sciences
Reference: None
Subject: Current Science
Keywords: Database, land use, resource management, soil information system
Abstract: It has long been felt that our natural environment should be mapped and monitored with active participation of agencies responsible for managing natural resources, industry groups and community organizations. This organized information forms a basis for storing soil and land databases for the implementation and monitoring of various efforts on land resource management. In view of huge demands on natural resources like soil and water, with special reference to the environment and its protection, there is a need for better information on spatial variation and trends in the conditions of soils and landscapes. It suggests the necessity to have a clear view of the status of information on various natural resources, with special reference to the soils. Such information would not only store the datasets for posterity, but will also improve our understanding of biophysical processes in terms of cause effect relationship in the pedo-environment. Information on soil and land resources is thus fundamental where the soil information system plays a pivotal role.
Location: 241
Literature cited 1: None
Literature cited 2: None
ID: 53836
Title: Whither pure science in India: a survey of graduate physics students of a representative University of Delhi college
Author: Kuldeep Kumar, Mamta, P. Arun and Jaswinder Singh
Editor: P.Balaram
Year: 2010
Publisher: Current Science Association, Vol 99, No 9, 10 November 2010
Source: Centre for Ecological Sciences
Reference: None
Subject: Current Science
Keywords: Performance, pure science, spoon-feeding, student-teacher interaction
Abstract: Over the past few years, a sudden drop in performance of science students is being noticed in the first year of their college compared to class 12. The issue is examined from the student ' s viewpoint. Responses from physics and electronics undergraduate students of our college indicate five key factors responsible for this decline in performance. A study of these factors and the ways to improve the performance of students from the focus of this article.
Location: 241
Literature cited 1: None
Literature cited 2: None
ID: 53835
Title: Understanding and predicting the Indian summer monsoon
Author: Sulochana Gadgil and J.Srinivasan
Editor: P.Balaram
Year: 2010
Publisher: Current Science Association, Vol 99, No 9, 10 November 2010
Source: Centre for Ecological Sciences
Reference: None
Subject: Current Science
Keywords: None
Abstract: None
Location: 241
Literature cited 1: None
Literature cited 2: None
ID: 53834
Title: What monsoon means
Author: Sunita Narain
Editor: P.Balaram
Year: 2010
Publisher: Current Science Association, Vol 99, No 9, 10 November 2010
Source: Centre for Ecological Sciences
Reference: None
Subject: Current Science
Keywords: None
Abstract: None
Location: 241
Literature cited 1: None
Literature cited 2: None
ID: 53833
Title: A decentralized and holistic approach for grain management in India
Author: P.K.Singh
Editor: P.Balaram
Year: 2010
Publisher: Current Science Association, Vol 99, No 9, 10 November 2010
Source: Centre for Ecological Sciences
Reference: None
Subject: Current Science
Keywords: None
Abstract: None
Location: 241
Literature cited 1: None
Literature cited 2: None
ID: 53832
Title: Lichenology in Indian subcontinent
Author: Dharani Dhar Awasthi
Editor: None
Year: 2000
Publisher: Bishen Singh Mahendra Pal Singh, 2000
Source: Centre for Ecological Sciences
Reference: None
Subject: Lichenology in Indian subcontinent
Keywords: None
Abstract: None
Location: 215
Literature cited 1: None
Literature cited 2: None
ID: 53831
Title: Wetland ecology principles and conservation
Author: Paul A. Keddy
Editor: None
Year: 2007
Publisher: Cambridge University Press, Second Edition, 2010
Source: Centre for Ecological Sciences
Reference: None
Subject: Wetland ecology principles and conservation
Keywords: None
Abstract: None
Location: 215
Literature cited 1: None
Literature cited 2: None
ID: 53830
Title: A compendium of the macrolichens from India, Nepal and Sri Lanka
Author: Dharani Dhar Awasthi
Editor: None
Year: 2007
Publisher: Bishen Singh Mahendra Pal Singh, 2007
Source: Centre for Ecological Sciences
Reference: None
Subject: A compendium of the macrolichens from India, Nepal and Sri Lanka
Keywords: None
Abstract: None
Location: 215
Literature cited 1: None
Literature cited 2: None
ID: 53829
Title: Intelligent positioning GIS-GPS unification
Author: George Taylor and Geoff Blewitt
Editor: None
Year: 2006
Publisher: John Wiley and Sons, Ltd, 2006
Source: Centre for Ecological Sciences
Reference: None
Subject: Intelligent positioning GIS-GPS unification
Keywords: None
Abstract: None
Location: 215
Literature cited 1: None
Literature cited 2: None
ID: 53828
Title: Environmental Modelling finding simplicity in complexity
Author: None
Editor: John Wainwright and Mark Mulligan
Year: 2005
Publisher: John Wiley and Sons, Ltd, 2005
Source: Centre for Ecological Sciences
Reference: None
Subject: Environmental Modelling finding simplicity in complexity
Keywords: None
Abstract: None
Location: 215
Literature cited 1: None
Literature cited 2: None
ID: 53827
Title: Wastewater treatment for pollution control and reuse
Author: Soli J Arceivala, Shyam R. Asolekar
Editor: None
Year: 2009
Publisher: Tata McGraw Hill Education Private Limited, Third edition
Source: Centre for Ecological Sciences
Reference: None
Subject: Wastewater treatment for pollution control and reuse
Keywords: None
Abstract: None
Location: 215
Literature cited 1: None
Literature cited 2: None
ID: 53826
Title: Dictionary of Environmental Science and Technology
Author: Andrew Porteous
Editor: None
Year: 2008
Publisher: John Wiley and Sons, Ltd, Fourth Edition, 2008
Source: Centre for Ecological Sciences
Reference: None
Subject: Dictionary of Environmental Science and Technology
Keywords: None
Abstract: None
Location: 215
Literature cited 1: None
Literature cited 2: None