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martingale    音标拼音: [m'ɑrtɪŋ,el]
n. 马颔疆;支索;倍赌

马颔疆;支索;倍赌

martingale
n 1: a harness strap that connects the nose piece to the girth;
prevents the horse from throwing back its head
2: spar under the bowsprit of a sailboat [synonym: {dolphin
striker}, {martingale}]

Martingale \Mar"tin*gale\, Martingal \Mar"tin*gal\, n. [F.
martingale; cf. It. martingala a sort of hose, martingale,
Sp. martingala a greave, cuish, martingale, Sp. alm['a]rtaga
a kind of bridle.]
1. A strap fastened to a horse's girth, passing between his
fore legs, and fastened to the bit, or now more commonly
ending in two rings, through which the reins pass. It is
intended to hold down the head of the horse, and prevent
him from rearing.
[1913 Webster]

2. (Naut.) A lower stay of rope or chain for the jib boom or
flying jib boom, fastened to, or reeved through, the
dolphin striker. Also, the dolphin striker itself.
[1913 Webster]

3. (Gambling) The act of doubling, at each stake, that which
has been lost on the preceding stake; also, the sum so
risked; -- metaphorically derived from the bifurcation of
the martingale of a harness. Called also {Martingale
strategy}. Such a betting strategy does not change the
overall likelihood of winning, but in a short run it
increases the probability of winning a small sum,
balancing it against an increased probability of losing a
large sum. [Cant] --Thackeray.
[1913 Webster PJC]


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  • Martingale (probability theory) - Wikipedia
    In probability theory, a martingale is a stochastic process in which the expected value of the next observation, given all prior observations, is equal to the most recent value In other words, the conditional expectation of the next value, given the past, is equal to the present value
  • MARTINGALES AND THEIR APPLICATIONS
    We will introduce the notion of a martingale and explore some key martingale results We will also explore several examples of martingales in discrete and continuous time such as Polya’s urn and Brownian motion
  • The Ultimate Martingale Theory Guide - numberanalytics. com
    Explore martingale concepts in probability theory, covering definitions, key theorems, convergence ideas, and practical examples
  • 17. 1: Introduction to Martingalges - Statistics LibreTexts
    The term martingale originally referred to a portion of the harness of a horse, and was later used to describe gambling strategies, such as the one used in the Petersburg paradox, in which bets are doubled when a game is lost
  • Martingales - Yale University
    This fact is not as useful as one might think for getting bounds: given a martingale, it is almost always better to work with the martingale directly and then apply Jensen's inequality or f afterwards to get the desired bound
  • Introduction to Martingales - Duke University
    Informally a martingale is simply a stochastic process Mt defined on some probability space (Ω, F, P) and indexed by some ordered set T that is “con-ditionally constant,” i e , whose predicted value at any future time s > t is the same as its present value at the time t of prediction
  • Martingale -- from Wolfram MathWorld
    The concept of martingales is due to Lévy, and it was developed extensively by Doob A one-dimensional random walk with steps equally
  • Martingale Theory - MathsToML
    Today’s article will look at one of the more difficult areas in probability called martingale theory We will cover the basic theory and look at 2 examples which use martingale theory (the drunk man and the ABRACADABRA problem)
  • Martingales: Definitions and Examples | Springer Nature Link
    Martingale theory is a cornerstone to stochastic analysis and is included in this book from that perspective This chapter introduces the theory with examples and their basic properties
  • What is a Martingale? - JSTOR
    1 Introduction Martingale theory illustrates the history of mathematical probability: the basic definitions are inspired by crude notions of gambling, but the theory has become a sophisticated tool of modern abstract mathematics, drawing from and contributing to other fields





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