ZIB

Treffer pro Seite

Treffer 1 - 2 | 2 Treffer

Sortierung

Digitale Medien

Ultrasonic flaw classification in weldments using probabilistic neural networks (1992)

Song, S. J. ; Schmerr, L. W.

Springer

Journal of nondestructive evaluation 11 (1992), S. 69-77

zur Merkliste hinzufügen auf der Merkliste

Details

ISSN: 1573-4862

Schlagwort(e): Welds ; flaw classification ; ultrasonics ; neural networks

Quelle: Springer Online Journal Archives 1860-2000

Thema: Elektrotechnik, Elektronik, Nachrichtentechnik , Mathematik

Notizen: Abstract A probabilistic neural network is used here to classify flaws in weldments from their ultrasonic scattering signatures. It is shown that such a network is both simple to construct and fast to train. Probabilistic nets are also shown to be able to exhibit the high performance of other neural networks, such as feed forward nets trained via back-propagation, while possessing important advantages of speed, explicitness of their architecture, and physical meaning of their outputs. Probabilistic nets are also demonstrated to have performance equal to common statistical approaches, such as theK-nearest neighbor method, while retaining their unique advantages.

Materialart: Digitale Medien

URL: http://dx.doi.org/10.1007/BF00568290

Permalink

Bibliothek	Standort	Signatur	Band/Heft/Jahr	Verfügbarkeit

Andere fanden auch interessant ...

Artikel (Nationallizenzen)

Volltext

Digitale Medien

Effect of host diet on acceptance of eastern spruce budworm eggs by Trichogramma minutum (1997)

Song, S. J. ; Bourchier, R. S. ; Smith, S. M.

Springer

Entomologia experimentalis et applicata 84 (1997), S. 41-47

zur Merkliste hinzufügen auf der Merkliste

Details

ISSN: 1570-7458

Schlagwort(e): egg parasitoid ; host acceptance ; preference ; Trichogramma minutum/ ; Choristoneura fumiferana/ ; Abies balsamea/ ; biological control

Quelle: Springer Online Journal Archives 1860-2000

Thema: Biologie

Notizen: Abstract The acceptance behaviour of the parasitic wasp, Trichogramma minutum Riley (Hymenoptera: Trichogrammatidae), was studied on two types of egg masses of eastern spruce budworm (SBW), Choristoneura fumiferana Clemens. Host eggs were obtained from moths that had been fed balsam fir or artificial diet during their larval stages. Parasitoids were reared from both types of hosts. Host acceptance assays were conducted where females were provided with a single egg mass and with a choice between egg masses. Regardless of the parasitoid's rearing host, females parasitised hosts reared from artificial diet more often than those from balsam fir. Response was consistent in both no-choice and choice assays. Rejection of hosts tended to occur during the examining stage of behaviour, suggesting that acceptability is judged externally. If a host was accepted, the same number of eggs were laid per egg mass regardless of treatment.

Materialart: Digitale Medien

URL: http://dx.doi.org/10.1023/A:1003044813827

Permalink

Bibliothek	Standort	Signatur	Band/Heft/Jahr	Verfügbarkeit

Andere fanden auch interessant ...

Artikel (Nationallizenzen)

Volltext

Treffer 1 - 2 | 2 Treffer