Wikipedia is a large and rapidly growing Web-based collaborative authoring environment, where anyone on the Internet can create, modify, and delete pages about encyclopedic topics. A remarkable property of some Wikipedia pages is that they are written by up to thousands of authors who may have contradicting opinions. In this paper, we show that a visual analysis of the 'who revises whom'-network gives deep insight into controversies. We propose a set of analysis and visualization techniques that reveal the dominant authors of a page, the roles they play, and the alters they confront. Thereby we provide tools to understand how Wikipedia authors collaborate in the presence of controversy.

Aus einent Scht-eihendes .Profe[for B r n n d e s , meteorolig@hen Inhnlts. Bredau dcn 1. December 1816. E i i i e Arbeit, die ich diereem Briefe beizufcliliefsen gednchte, hat mich nicht zu erhcbliclien Refultnt c r i gefiihrt. Ich liatte nPrnlicli eiiie Rfenge W i tteruiigs-Notizeii fiir deri vorigcn I'onderbaren Sommcr aus 6flbntlicheii Uliltern zufmiimengetregen, uncl Iioff'Le, es follte Iicli dareus elwas iiber den allgcm c i n c i i Gang der T/l'iticrung ergeben. Aber indcin icli lie zufammenlle!Ie, Ikhe ich doch, dafs weiiig her~uskoinmt. Merkwiirdig ilt es freilich, dafs der .Tuli iu DeutCchland und Frankreicli , MbFt his nach Neapel hiu, regnigt, vcrhiid'erlich und

Die o n h i t'omnirnbeii Fol. diosmae crenatae babe i d noch fclbfl in 9Iiii17trbgin init uirler Smiibe aufgetrieben. a i r r e Bldrror tucrbon f 6 o n in g a n j $cUunb niit T i i f y grr brau4t, weldjrd u i t l e 9;ud)frage barnad) rerntilnfit Fat.E i e Zclge bacon tuur, h a p iituii !ef;t jWei rerfdiic?riie e o r # ton bdlt. SUII Suit IcGt angrPoiiiineneii r&ic€e id, 3 f j i i c n jllr $ [ t i @ eine ?$robe bci. %,id) f , i u f n i i i i n i f $ e r 3trfiQc:iing f o u c i i beibz in brr XjiirPiiiiy gIt.iQ f r p n . !Drr 9 r e i B a c t [angel1 %[iittur ifl 16 agr. 9 6 iCt, u o i i ber trilerii E o r t e nod, laorbe erf:altfit ? J n i i c n , b t j i u e i f l t id), bn id, fie VUII 30 mnnben bfibe, ber fie j i i m cigeiron Otbraiicf) juriifgrlrgt b p. t t e. " Da b i r Biiccoblftter rieUoicft bier tinb ba Oegenffanb Ctr $eiiPuiiCe iverbtii FSnnen, To erlaube i& niir, b r n f e f r r n b r6 % r @ iu6 ei nr 93 e fd, re i b 11 n g b or (el b eii iii it jii t [I ei fen. Dor genrrir&e Cf)aruPter vcn Diosma ifi : Cal. rub-5 partitus persistens. Cl'or. s -p e t a l a , Se-Nectaria 5 , supra germen. Caps. 3. s. 5 , coalita. m e n a calyptrata.Err fpesif. Q a r n P t e r boil D. crenata ifi: larib. solitariis. C a l j c i s fol. subulata, creiiata. Foliis ovatis crenatis subtus punctatis, flor. axil-( T h u n b e r g Prodcorn. , Linn. Amoenitat. acad. Iv. Genera plant. edit. Schreb. n. 374. Bucco crenata W e n d l . , Diosrna betulina Idam? Hartogia betulina Rerg. Steads1 Nomenclat botanic. 123. 278, Willdenow Spec. plant. T. I, P.11. pag. i13S, Persoon synops. plantar. I. 246). 3 i t Oattiing Diosma gcbdrt in bie Pentandria Monogynia Linn. ultb itt b e t natilrIi4tn gal niilie b e t S u r u c m i ruff.

No abstract

No abstract