Current issue: 58(2)

Under compilation: 58(3)

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Silva Fennica 1926-1997
Acta Forestalia Fennica

Articles containing the keyword 'members'

Category : Article

article id 4798, category Article
Finnish Society of Forest Science. (1969). Suomen metsätieteellisen seuran jäsenet 31.12.1968. Silva Fennica vol. 3 no. 2 article id 4798.
English title: Members of the Society of Forestry in Finland in December 31, 1968.
Keywords: The Finnish Society of Forest Science; members
Abstract | View details | Full text in PDF | Author Info

This paper includes a list of all members of the Finnish Society of Forestry in Finland (now the Finnish Society of Forest Science) in December 31, 1968.

  • Finnish Society of Forest Science, E-mail:

Category : Research article

article id 975, category Research article
Renats Trubins, Ola Sallnäs. (2014). Categorical mapping from estimates of continuous forest attributes – classification and accuracy. Silva Fennica vol. 48 no. 2 article id 975.
Keywords: Sweden; land cover maps; forest type maps; map accuracy assessment; class membership probability; Bayesian network; k-NN estimates
Highlights: The paper presents an approach to classification and accuracy assessment of ad-hoc categorical maps based on existing spatial datasets with estimates of continuous forest variables; Pixel level class membership probabilities are estimated using a Bayesian network model.
Abstract | Full text in HTML | Full text in PDF | Author Info
Spatially explicit data on forest attributes is demanded for various research with landscape perspective. Existing datasets with estimates of continuous forest variables are often used as the basis for producing categorical forest type maps. Normally, this type of maps are used without knowing their accuracy. This paper presents a Bayesian network model for estimating pixel level class membership probabilities of thus derived categorical maps. Class membership probabilities can be used as a post-classification measure of map accuracy and in the process of map classification affecting the assignments of class labels. The method is applied in mapping deciduous dominated forests on the basis of the k-NN Sweden 2005 dataset in a study area in southern Sweden. The results indicate rather low accuracy for deciduous class regardless of the map classification method: 0.48 versus 0.50 in the maps classified without and with the use of the class membership probabilities given equal deciduous area. When probability-based classification is applied, the level of accuracy varies with the assumed map class proportions. Thus, when deciduous class area corresponding to the National Forest Inventory estimate was used, the accuracy of only 0.35 was obtained for the deciduous map class.
  • Trubins, Southern Swedish Forest Research Centre, Swedish University of Agricultural Sciences, Box 49, 230 53 Alnarp, Sweden E-mail: (email)
  • Sallnäs, Southern Swedish Forest Research Centre, Swedish University of Agricultural Sciences, Box 49, 230 53 Alnarp, Sweden E-mail:

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