Zwei Lösungsmethoden Für Nichtkonvexe Programmierungsprobleme
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Programmierungen sind ein sehr wirkungsvolles Instrument zur prak- tischen Berechnung optimaler wirtschaftlicher Entscheidungen. 1m ein- fachsten Fall der linearen Programmierung wird eine lipeare Zielfunk- tion bei Geltung linearer Ungleichungen als Nebenbedingung maximiert oder minimiert. Sehr viele 6konomische Probleme lassen sich in diese Form bringen. Leider ist das nicht bei allen m6glich: sehr wichtige Probleme (z. E. viele Investitionsprobleme) fUhren auf nichtlineare Zielfunktionen und nichtlinear-e Ungleichungen als Nebenbedingungen. Es gibt in der Zwischenzeit eine ganze Reihe von Rechenverfahren, die ge- statten, von einem beliebigen, zul ssigen Anfangspunkt ausgehend ite- rativ ein lokales Extremum zu berechnen. Leider liegen die Probleme h ufig so, daE zahlreiche lokale Extrema existieren, w hrend man natUr- lich am globalen Extremum interessiert ist. Bisher hat es nur ein Ver- fahren gegeben (das von Orden und Ritter), das fUr einen Spezialfall quadrati scher Formen als Zielfunktion und fUr lineare Ungleichungen als Nebenbedingungen das globale Extrumum in endlich vie len Rechenschritten zu erreichen gestattet. Alle Versuche zur Verallgemeinerung dieses Ver- fahrens auf beliebige nichtlineare Zielfunktionen oder nichtlineare Ne- benbedingungen sind bisher gescheitert. Hier setzt nun die Arbeit von Herrn Ueing ein. Er entwickelt zwei Ver- fahren, die mit tragbarem Rechenaufwand von einem lokalen Extremum zum n chsten mit einem h6heren Wert der Zielfunktion (bei einer Maximumauf- gabe) Uberzugehen gestatten. Das erste Verfahren, dessen allgemeine Idee von mir schon vor einiger Zeit vorgeschlagen wurde. ist sehr allgemein: es verlangt fast keine Einschr nkungen der Zielfunktionen und der Neben- bedingungen.
• Author(s): Clear | James • Publisher: Penguin • Publisher Imprint: Penguin Random House • Subject: General Books
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View full details• Author(s): Morgan Housel • Publisher: Pan Macmillan • Publisher Imprint: Pan Macmillan • BISAC: Finance - Wealth ManagementA third book from the International bestselling author of The Psychology of Money and Same as Ever, lessons on harnessing...
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View full details• Author(s): Dan Brown • Publisher: Transworld Publishers Ltd • Publisher Imprint: Transworld Publishers Ltd • BISAC: Thrillers - EspionageDan Brown is the bestselling author of Digital Fortress, Deception Point, Angels and Demons, The Da Vinci C...
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Rich Dad Poor Dad: What the Rich Teach Their Kids about Money That the Poor and Middle Class Do Not!
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View full details• Author(s): Wonder House Books • Publisher: Wonder House Books • Publisher Imprint: Wonder House Books • BISAC: Comics & Graphic Novels - Fairy Tales, Folklore, Legends & MTimeless Wisdom, Talking Animals & Life Lessons for Young Min...
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View full details• Author(s): Vir Das • Publisher: HarperCollins Publishers India • Publisher Imprint: HarperCollins Publishers India • BISAC: Entertainment & Performing ArtsComedian and actor Vir Das is beloved (by some, tolerated by others, blocked by a few...
View full details• Author(s): Eric Carle • Publisher: Penguin Books, Limited (UK) • Publisher Imprint: Penguin Books, Limited (UK) • BISAC: Animals - Butterflies, Moths & CaterpillarsEric Carle's The Very Hungry Caterpillar is a perennial favourite with child...
View full details• Author(s): Prajakta Koli • Publisher: Harper Fiction India • Publisher Imprint: Harper Fiction India • BISAC: Romance - ContemporaryWinner of the Amazon India Popular Choice Debut Book 2025 Award. From one of India's most-loved creators comes s...
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