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[Stammbuch Karl Hennig]
No full text[STAMMBUCH KARL HENNIG]
[Stammbuch Karl Hennig] (1)
Cover (1)
Besitzvermerk (7)
Illustration (8)
Einträge Bl. 3 - 10 (10)
Einträge Bl. 11 - 20 (18)
Einträge Bl. 21 - 23 (28)
Einlage: Briefkarte (35)
Einlage: Zettel (37
What are the true clusters?
No full textConstructivist philosophy and Hasok Chang's active scientific realism are used to argue that the idea of ``truth'' in cluster analysis depends on the context and the clustering aims. Different characteristics of clusterings are required in different situations. Researchers should be explicit about on what requirements and what idea of ``true clusters'' their research is based, because clustering becomes scientific not through uniqueness but through transparent and open communication. The idea of ``natural kinds'' is a human construct, but it highlights the human experience that the reality outside the observer's control seems to make certain distinctions between categories inevitable. Various desirable characteristics of clusterings and various approaches to define a context-dependent truth are listed, and I discuss what impact these ideas can have on the comparison of clustering methods, and the choice of a clustering methods and related decisions in practice
Brief von Manfred Hausmann an Dieter Hennig an Kasseler Grimm-Gesellschaft
No full textBRIEF VON MANFRED HAUSMANN AN DIETER HENNIG AN KASSELER GRIMM-GESELLSCHAFT
Brief von Manfred Hausmann an Dieter Hennig an Kasseler Grimm-Gesellschaft ( -
On the neural encoding of object information : a model simulation study of the fly lobula plate network
Get PDFHennig P. On the neural encoding of object information : a model simulation study of the fly lobula plate network. Bielefeld: Universität; 2011
Interview with Lisa Hennig
Get PDFLisa Hennig was born and raised into a middle class white family in Washington state and from a young age she was taught to be inclusive of other ethnic groups and learn about many different cultures. She married, had children, and worked in a law office advocating for rights for individuals with disabilities. She made masks and donated to her local community center before she joined the Auntie Sewing Squad in January of 2021. Since joining, she has made 1,500+ masks and sent them to communities all over the United States with little access to masks.https://digitalcommons.csumb.edu/auntiesewing_interviews/1048/thumbnail.jp
Microphorites Hennig
No full textGenus Microphorites Hennig Microphorites Hennig 1971: 16. Type species: Microphorites extinctus Hennig, 1971Published as part of Arillo, Antonio, Peñalver, Enrique & Delclòs, Xavier, 2008, Microphorites (Diptera: Dolichopodidae) from the Lower Cretaceous amber of San Just (Spain), and the co-occurrence of two ceratopogonid species in Spanish amber deposits, pp. 29-40 in Zootaxa 1920 on page 30, DOI: 10.5281/zenodo.18468
Phaonia asiatica Hennig 1963
No full text5. Phaonia asiatica Hennig, 1963 Hennig, 1963 a: 801. Tajikistan. Hennig, 1964 a: 2. Tajikistan. Hennig, 1964 b: 1081. Tajikistan. Sychevskaya, 1966: 392. Tajikistan. Zinoviev, 1983: 186. Tajikistan. Pont, 1986: 118. Tajikistan.Published as part of Sorokina, Vera S., 2015, New species of the genus Phaonia R. - D., 1830 (Diptera, Muscidae) from Central Asia, pp. 571-587 in Zootaxa 4013 (4) on page 572, DOI: 10.11646/zootaxa.4013.4.7, http://zenodo.org/record/25361
An empirical comparison and characterisation of nine popular clustering methods
Get PDFNine popular clustering methods are applied to 42 real data sets. The aim is to give a detailed characterisation of the methods by means of several cluster validation indexes that measure various individual aspects of the resulting clusters such as small within-cluster distances, separation of clusters, closeness to a Gaussian distribution etc. as introduced in Hennig (in: Data analysis and applications 1: clustering and regression, modeling—estimating, forecasting and data mining, ISTE Ltd., London, 2019). 30 of the data sets come with a “true” clustering. On these data sets the similarity of the clusterings from the nine methods to the “true” clusterings is explored. Furthermore, a mixed effects regression relates the observable individual aspects of the clusters to the similarity with the “true” clusterings, which in real clustering problems is unobservable. The study gives new insight not only into the ability of the methods to discover “true” clusterings, but also into properties of clusterings that can be expected from the methods, which is crucial for the choice of a method in a real situation without a given “true” clustering
Xenanthomyza Hennig 1967
No full textGenus XENANTHOMYZA Hennig † Xenanthomyza Hennig 1967: 19. Type species, Xenanthomyza larssoni Hennig 1967, by original designation. Gender feminine. Hennig 1967: 19 [illustrations of wing, thorax, abdomen and head, placed in Anthomyzidae]; Evenhuis 1994: 416 [fossil catalogue, world, questionably placed in Clusiidae]; Lonsdale et al. 2010: 232 [questionably placed in Clusiidae]. larssoni Hennig. PA: Baltic amber (Eocene/Oligocene). Xenanthomyza larssoni Hennig 1967: 19. Baltic amber. HT ♀ UZMC. Hennig 1967: 19 [illustrations of body, head, wing and female terminalia]; McAlpine 1989: 1457 [family placement]; Evenhuis 1994: 416 [fossil catalogue, world]; Tschirnhaus & Hoffeins 2009: 207 [key, new specimens].Published as part of Owen Lonsdale, 2017, World Catalogue of the Druid Flies (Diptera: Schizophora: Clusiidae), pp. 1-85 in Zootaxa 4333 (1) on page 71, DOI: 10.11646/zootaxa.4333.1.1, http://zenodo.org/record/101006
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