1,720,953 research outputs found
Analysis of remote sensing approaches used by Estonian forest management specialists
No full textMagistritöö
Metsamajanduse ja metsaökoloogia õppekavalUurimuse eesmärk oli selgitada metsasektori spetsialistide kasutusharjumusi ruumiandmete,
veebipõhiste kaardirakenduste ning GIS tarkvara kasutamise osas ning analüüsida
metsaspetsialistide eelistusi erinevate kaardirakenduste lõikes. Uurimuseks vajalikud andmed
koguti küsimustiku kaudu, millele vastas 53 metsamajandusega tegelevat spetsialisti nii
avalikust- kui erasektorist. Uurimuse tulemusi analüüsides selgus, et metsamajandamisega
tegelevad spetsialistid kasutavad oma töös sagedasti metsaregistri ja Maa-ameti avalike
teenuseid ning nendes olevaid ruumiandmeid. Ruumiandmete päringute tegemisel on tähtsal
kohal ka Fotoladu veebirakendus ning tööandja pakutav geoinfosüsteem. Vähem leiavad
rakendust drooniga jäädvustatud ruumiandmed ning kaarditöötlustarkvarad. Uurimuse
tulemustele tuginedes joonistusid välja erinevate kaardirakenduste ja ruumiandmete kogumise
puudused, millele andis autor võimalikud arengusuunad.The aim of the study was to examine the user habits of spatial data, web-based map
applications, and GIS software among forestry sector specialists, as well as to analyze their
preferences for different mapping applications. The data needed for the study was collected
via a questionnaire, which was answered by 53 forestry specialists from both the public and
private sectors. Analysis of the study's results revealed that specialists engaged in forest
management frequently use the Forest Register and the Estonian Land Board public services
along with the spatial data provided therein. The Fotoladu web application and the employerprovided
GIS also play an important role in conducting spatial data queries. Less commonly
used are spatial data captured by drones and map processing software. Based on the results of
the study, shortcomings in various map applications and spatial data collection methods
emerged, for which the author proposed possible development strategies
Remote sensing applications for forest inventory in Estonia
Full text linkBakalaureusetöö
Metsanduse õppekavalKäesoleva bakalaureusetöö eesmärk oli anda ülevaade metsamajandusliku kaugseire
tehnikast ja meetoditest ning rakendamisest Eestis, kasutades referentsiks metsade
kaugseiret kirjeldanud uurimusi mitmetest erinevatest riikidest.
Põhjaliku ülevaate saamiseks kasutati teadustöid Eestist ning välismaalt. Käesolevas töös
on refereeritud uurimusi, mis sidusid endas metsamajanduslikku kaugseiret ja metsade
takseerimist. Erinevate uurimuste läbi töötamine andis kinnitust, et võrreldes välismaal
tehtud metsade kaugseire rakenduslike uurimustega, on Eestis läbi viidud teadustööd olnud
väga hea rakendusliku potentsiaaliga. Tehnika ning teaduse arenguga suureneb ka vajadus
üha täpsemate metsade inventeerimisandmete järgi, seega on inventeerimisandmete
kvaliteedil tähtis osa tõhusa metsamajandusliku kaugseire toimimiseks.The aim of this bachelor thesis was to give a general overview of remote sensing
technology, methods and applications for forest inventory in Estonia.
Diferent scientific articles on remote sensing in forestry were used which asessed the
combination of forest inventory and application of remote sensing in forestry. These
articles were from Estonia and from abroad. Conclusion of collating these articles, was that
remote sensing in forestry in Estonia has been well applied to resolve multiple issues in
forest managment. The growing need of accurate forest inventory data for algoritm training
will be one problem to solve to increase the efficiency of remote sensing-based estimates
in the future
Going Beyond Counting First Authors in Author Co-citation Analysis
Full text linkThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
Variations on the Author
Full text link“Variations on the Author” discusses two of Eduardo Coutinho’s recent films (Um Dia na Vida, from 2010, and Últimas Conversas, posthumously released in 2015) and their contribution to the general question of documentary authorship. The director’s filmography is characterized by a consistent yet self-effacing form of authorial self-inscription: Coutinho often features as an interviewer that rather than express opinions propels discourses; an interviewer that is good at listening. This mode of self-inscription characterizes him as an author who is not expressive but who is nonetheless markedly present on the screen. In Um Dia na Vida, however, Coutinho is completely absent form the image, while Últimas Conversas, on the contrary, includes a confessional prologue that moves the director from the margins to the center of his films. This article examines the ways in which these works stand out in the filmography of a director who offers new insights into the notion of cinematic authorship
Appropriate Similarity Measures for Author Cocitation Analysis
Full text linkWe provide a number of new insights into the methodological discussion about author cocitation analysis. We first argue that the use of the Pearson correlation for measuring the similarity between authors’ cocitation profiles is not very satisfactory. We then discuss what kind of similarity measures may be used as an alternative to the Pearson correlation. We consider three similarity measures in particular. One is the well-known cosine. The other two similarity measures have not been used before in the bibliometric literature. Finally, we show by means of an example that our findings have a high practical relevance.information science;Pearson correlation;cosine;similarity measure;author cocitation analysis
Dispelling the Myths Behind First-author Citation Counts
Full text linkWe conducted a full-scale evaluative citation analysis study of scholars in the XML research field to explore just how different from each other author rankings resulting from different citation counting methods actually are, and to demonstrate the capability of emerging data and tools on the Web in supporting more realistic citation counting methods. Our results contest some common arguments for the continued
use of first-author citation counts in the evaluation of scholars, such as high correlations between author rankings by first-author citation counts and other citation
counting methods, and high costs of using more realistic citation counting methods that are not well-supported by the ISI databases. It is argued that increasingly available digital full text research papers make it possible for citation analysis studies to go beyond what the ISI databases have directly supported and to employ more
sophisticated methods
koamabayili/VECTRON-author-checklist: VECTRON author checklist
No full textWe have done our best to complete the author checklist relating to the use of animals in the hut study. Note that the objective for the hut study was to evaluate the IRS treatment applications for residual efficacy against Anopheles mosquitoes, including the local An. coluzzii mosquito population. Cows were only used to attract mosquitoes into the huts and no tests were carried out directly on the cows. The author checklist is intended for use with studies where experiments are carried out on animals, which is why we have had such difficulty in completing this for the hut study, as many of the questions do not relate to how the cows were used
Author-wise bibliometric analysis based on entropy.
No full textAuthor-wise bibliometric analysis based on entropy.</p
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