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Using links to aid web classification

- Xie, Wei, Mammadov, Musa, Yearwood, John

Authors: Xie, Wei , Mammadov, Musa , Yearwood, John
Date: 2007
Type: Text , Conference paper
Relation: Paper presented at 6th IEEE/ACIS International Conference on Computer and Information Science, ICIS 2007, Melbourne, Victoria : 11th-13th July 2007 p. 981-986
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Description: In this paper, we will present a new approach of using link information to improve the accuracy and efficiency of web classification. However, different from others, we only use the mappings between linked documents and their own class or classes. In this case, we only need to add a few features called linked-class features into the datasets. We apply SVM and BoosTexter for classification. We show that the classification accuracy can be improved based on mixtures of ordinary word features and out-linked-class features. We analyze and discuss the reason of this improvement.
Description: 2003005438

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Ecological processes associated with different animal taxa in urban environments

- Evans, Maldwyn, Barton, Philip, Westgate, Martin, Soga, Masashi, Fujita, Go, Miyashita, Tadashi

Authors: Evans, Maldwyn , Barton, Philip , Westgate, Martin , Soga, Masashi , Fujita, Go , Miyashita, Tadashi
Date: 2021
Type: Text , Journal article
Relation: Ecosphere Vol. 12, no. 8 (2021), p.
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Description: Urbanization is increasing globally with wide-ranging consequences for biodiversity and the ecological processes it performs. Yet knowledge of the range of ecological processes supported by biodiversity in urban environments, and the different taxa that perform these processes is poorly understood. We used a text-analysis approach to identify the research trends and gaps in knowledge in the literature on ecological processes provided by animals in urban environments. We found a divide in urban ecological processes research that grouped studies into those with an explicit link to ecological processes and those that focused on biodiversity and made an implicit link to ecological processes. We also found that the dominant taxa in urban ecological processes research were insects, which has more than twice as many studies as birds or mammals, potentially due to their recognized and explicit link to key processes and services (e.g., pollination, pollution biomonitoring) and disservices (e.g., pests, disease transmission). We found a further split between terrestrial and aquatic studies, with urban aquatic studies also declining in relative prevalence over the last 20 yr. To consolidate and advance research on ecological processes in urban environments, we suggest it will be important to bridge the divide between studies on explicit services and others on more general biodiversity. This might be achieved by placing greater focus on the processes provided by non-insect taxa, and by integrating aquatic and terrestrial perspectives. © 2021 The Authors.

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