Alopex GudangMovies21 Rebahinxxi LK21

Alopex may refer to:

Alopex lagopus, a taxonomic synonym for the Arctic fox, Vulpes lagopus
ALOPEX a correlation-based machine learning algorithm
Alopex (Teenage Mutant Ninja Turtles), a character in the Teenage Mutant Ninja Turtles franchise
Alopex (Ancient Greek: ἀλώπηξ) ancient Greek for fox

ALOPEX GudangMovies21 Rebahinxxi LK21

ALOPEX (an abbreviation of "algorithms of pattern extraction") is a correlation based machine learning algorithm first proposed by Tzanakou and Harth in 1974.




Principle


In machine learning, the goal is to train a system to minimize a cost function or (referring to ALOPEX) a response function. Many training algorithms, such as backpropagation, have an inherent susceptibility to getting "stuck" in local minima or maxima of the response function. ALOPEX uses a cross-correlation of differences and a stochastic process to overcome this in an attempt to reach the absolute minimum (or maximum) of the response function.




Method


ALOPEX, in its simplest form is defined by an updating equation:




Δ


W

i
j


(
n
)
=
γ

Δ


W

i
j


(
n
−
1
)
Δ

R
(
n
)
+

r

i


(
n
)


{\displaystyle \Delta \ W_{ij}(n)=\gamma \ \Delta \ W_{ij}(n-1)\Delta \ R(n)+r_{i}(n)}


where:




n
≥
0


{\displaystyle n\geq 0}

is the iteration or time-step.




Δ


W

i
j


(
n
)


{\displaystyle \Delta \ W_{ij}(n)}

is the difference between the current and previous value of system variable





W

i
j




{\displaystyle \ W_{ij}}

at iteration



n


{\displaystyle n}

.




Δ

R
(
n
)


{\displaystyle \Delta \ R(n)}

is the difference between the current and previous value of the response function




R
,


{\displaystyle \ R,}

at iteration



n


{\displaystyle n}

.




γ


{\displaystyle \gamma }

is the learning rate parameter



(
γ

<
0


{\displaystyle (\gamma \ <0}

minimizes



R
,


{\displaystyle R,}

and



γ

>
0


{\displaystyle \gamma \ >0}

maximizes



R

)


{\displaystyle R\ )}






r

i


(
n
)
∼

N
(
0
,
σ



2


)


{\displaystyle r_{i}(n)\sim \ N(0,\sigma \ ^{2})}





Discussion


Essentially, ALOPEX changes each system variable




W

i
j


(
n
)


{\displaystyle W_{ij}(n)}

based on a product of: the previous change in the variable



Δ


{\displaystyle \Delta }






W

i
j


(
n
−
1
)


{\displaystyle W_{ij}(n-1)}

, the resulting change in the cost function



Δ


{\displaystyle \Delta }





R
(
n
)


{\displaystyle R(n)}

, and the learning rate parameter



γ


{\displaystyle \gamma }

. Further, to find the absolute minimum (or maximum), the stochastic process




r

i
j


(
n
)


{\displaystyle r_{ij}(n)}

(Gaussian or other) is added to stochastically "push" the algorithm out of any local minima.




References


Harth, E., & Tzanakou, E. (1974) Alopex: A stochastic method for determining visual receptive fields. Vision Research, 14:1475-1482. Abstract from ScienceDirect

Kata Kunci Pencarian:

• Mamalia
• Rubah arktik
• Canidae
• Hiu tikus
• Vulpes
• Mizar dan Alcor
• Daftar spesies Lepanthes
• Rubah Teumessos
• Pingai-laut
• Daftar spesies Pleurothallis
• Arctic fox
• Alopex
• ALOPEX
• Red fox
• Fox kestrel
• Tremophora alopex
• Mammal
• Brachypalpus alopex
• Raphael (Teenage Mutant Ninja Turtles)
• Alopecia areata

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Daftar Isi

• Alopex (IDW) - TMNTPedia | Fandom
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• Alopex - TMNTPedia | Fandom
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Alopex (IDW) - TMNTPedia | Fandom

Alopex is the first new Teenage Mutant Ninja Turtles character designed by Kevin Eastman in over 15 years. Alopex was born an ordinary arctic fox outside of Fairbanks, Alaska. She proved herself deadly from an early age, serving as her pack's main hunter.

Alopex (2012 TV series) | TMNTPedia - Fandom

Alopex is a mutant ninja fox, former assassin, the sister of Tiger Claw, and ally of the Ninja Turtles. As a human, Alopex was a young Japanese girl with long straight hair with bangs and a thin figure.

Alopex - TMNTPedia | Fandom

Alopex is a female mutant arctic fox who often has a romantic relationship with Raphael.

Alopex (TMNT 2012) | Heroes Wiki | Fandom

Alopex is a minor antagonist-turned-minor protagonist in the 2012 incarnation of Teenage Mutant Ninja Turtles. She is a mutant ninja fox, former assassin, the sister of Tiger Claw, and ally of the Ninja Turtles. She was voiced by Minae Noji.

Alopex

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Alopex - Villains Wiki

Alopex is a mutant arctic vixen appearing in the IDW Teenage Mutant Ninja Turtles comic series. She served as a member of the Foot Clan under the orders of The Shredder, until she came to realize the evil the Shredder truly embodied.

Alopex | TMNT Wiki - Fandom

Alopex is the sister of Tiger Claw. As children, she and her brother were mutated by the Kraang, unable to live with humans any longer, the two of them ran away and joined the circus. They...

Alopex - Teenage Mutant Ninja Turtles 2012 Series Wiki

Alopex is an ally of the Ninja Turtles. She was once a girl who live in Tokyo, Japan with her brother, Takeshi. But when the two siblings entered a Kraang Portal and were experimented on by The Kraang, she became a mutant red fox and her brother became a mutant Bengal tiger.

The Ninja Turtles’ Most Tragic Ally Just Set Aside Her Grudge

Jan 11, 2023 · In her early life, Alopex was a swift and fierce arctic fox who feared only the roving polar bear who terrorized her homeland. It was the arrival of humans that proved to be the end of her reign over the forest, as the scientists who came found her to …

Wiki - alopex - e621

Alopex is a female Mutant Arctic fox originating from IDW's Teenage Mutant Ninja Turtles comic book series. She first appears in the side comic Micro-Series 1: Raphael, and becomes a main supporting character in the series thereafter.