Essays about: "trees"

Showing result 1 - 5 of 475 essays containing the word trees.

  1. 1. The Application of Closed Frequent Subtrees to Authorship Attribution

    University essay from Umeå universitet/Institutionen för datavetenskap

    Author : Jonas Lindh Morén; [2014]
    Keywords : ;

    Abstract : In this experimental study we compare the authorship attribution performance of two different types of distinguishing features; overlapping syntax subtrees of height one (or small trees) and closed frequent syntax subtrees. Authors and documents used in the experiments are randomly drawn from a large corpus of blog posts and news articles. READ MORE

  2. 2. Turbo Warrant rebatesand finite differences : Pricing Turbo Warrant rebates based on one underlying stock with discrete dividendsin the Black-Scholes framework

    University essay from KTH/Numerisk analys, NA

    Author : Mikael Magnusson; [2014]
    Keywords : ;

    Abstract : Pricing Turbo Warrants with binomial trees can be a challenging or even impossible task. The presence of a barrier makes pricing highly sensitive to computational settings and numerical parameters, rather than the actual pricing mathematics. To remedy this, new numerical methods, of which Crank Nicolson is one such method, are investigated. READ MORE

  3. 3. Does small-scale land use affect the understory birds negative in the Peruvian National Reserve Allpahuayo Mishana?

    University essay from Högskolan i Halmstad/Sektionen för ekonomi och teknik (SET)

    Author : Ofir Svensson; [2014]
    Keywords : fragmentation; secondary forest; understory birds; human activity;

    Abstract : Human activities that lead to fragmentation and habitat loss are big problems in the world. Due to global climate change the negative effects of fragmented habitats can be catastrophic for many organisms. In the Amazon rainforest, that is most sensitive to human impact, stands a big risk to lose its species diversity. READ MORE

  4. 4. Presence of Hydnellum species on pine heaths

    University essay from Umeå universitet/Institutionen för ekologi, miljö och geovetenskap

    Author : Lill Eilertsen; [2014]
    Keywords : ;

    Abstract : The aim of this study was to assess whether the age, the circumference and the density of trees and stumps in forests affect the occurrence of stipitate hydnoid fungi in the genus Hydnellum. This was done by surveying sporocarps of Hydnellum species in 19 forest stands of potential different age and forest characteristics on a low productive pine heath in northern Sweden. READ MORE

  5. 5. Kinesiska träd och buskars potential för odling i södra Sverige : inventering och analys av Alnarps västra Kinafält

    University essay from SLU/Department of Landscape Architecture, Planning and Management (from 130101)

    Author : Patrick Bellan; [2014]
    Keywords : Inventering; Succession; Kina; Kinesiskt växtmaterial;

    Abstract : Detta arbete redogör för vilka arter som står att finna på ett av Alnarps så kallade Kinafält och i vilken fysiologisk kondition de befinner sig i. Växterna position på fältet är delvis baserad på deras naturliga växtplats elevationsmässigt (väst-östligt riktning på fältet), och dels utifrån vilken akt i successionsordningen de infinner sig och kan konkurrera framgångsrikt (nord-sydlig riktning). READ MORE