Of all the 'macro indicators' out there, if i had to choose one to assess risk-reward for equity markets, it would the this 👇

Important paper from Google on large batch optimization. They do impressively careful experiments measuring # iterations needed to achieve target validation error at various batch sizes. The main "surprise" is the lack of surprises. [thread]

https://t.co/7QIx5CFdfJ

The paper is a good example of lots of elements of good experimental design. They validate their metric by showing lots of variants give consistent results. They tune hyperparamters separately for each condition, check that optimum isn't at the endpoints, and measure sensitivity.

They have separate experiments where the hold fixed # iterations and # epochs, which (as they explain) measure very different things. They avoid confounds, such as batch norm's artificial dependence between batch size and regularization strength.

When the experiments are done carefully enough, the results are remarkably consistent between different datasets and architectures. Qualitatively, MNIST behaves just like ImageNet.

Importantly, they don't find any evidence for a "sharp/flat optima" effect whereby better optimization leads to worse final results. They have a good discussion of experimental artifacts/confounds in past papers where such effects were reported.

Chennimalai Murugan Kovil
#Erode
#TamilNaduTemples 🚩

Chennimalai Murugan Temple is located  near Perunthurai in Erode District. Murugan is worshipped here as Dandayudapani. Temple is situated on the banks of Noyyal river also called Kanchima Nadhi. Temple is situated in a hill

Sthala Puranam says that, there lived a Landlord who had many cows in his farm. One among them was a Black Cow, which didn't give milk. Land lord observed that evening time, when all the cows came back after grazing, this cow used to go to a particular spot and gave all  the milk

by itself. He decided to dig the spot where the cow gave its milk

On digging a beautiful Vigraham of Murugan was found, but lower portion was very rough. So he called a great sculptor to soften it. Everyone was shocked to see that on the first chisel the vigraham bleeded.

Land lord realized that Murugan wanted the Vigraham the way it was.

Thus Prathishta was done on Chennimalai hill. It is believed that Sivalaya Chola got relieved from his Brahmahatti Dosha here. Kanda Shasti Kavacham was first offered here.

Muruganukku Haro Hara
🙏🕉🙏

Rhino Barges

One of the dullest, coolest, more bizarre and fascinating pieces of kit used in Normandy.

Which NO ONE REALLY CARES ABOUT.

BUT I DO AND YOU SHOULD TOO.
/1

#WW2 #SWW #History

Planning for Overlord and Neptune had a serious snag, how to get troops from LSTs onto the beach as simply ramming them onto the beaches and dropping the ramp was known to damage the exceptionally vulnerable LSTs and felt to be unsustainable in the mid to long term. /2

LSTs were essential in sustaining Overlord's progress and were a subject of major headaches in the planning phase, and a real subject of friction when it came to launching additional amphibious operations such as Dragoon.

A single LSTs loss represented a capability nick. /3

So, logic dictated, we don't really want these remarkable but rare and highly valuable vessels constantly doing beach landings, we want something to act as a medium between ship to shore, and in came the (mostly) American designed Rhino. /4

I fucking love Rhinos.

Seriously.

Graceful lines of pure industrial pedigree.

Modular.

LOOK AT IT. /5

SRI SWETHA VINAYAGAR, THIRUVALANCHUZHI, KUMBAKONAM
(TN)
#bharatmandir

While main deity is Shiva as Kapartheeswarar, the kshetram is famous for Ganesha, known as Swetha/Vellai Vinayagar (white Vinayak)

During samudra manthan, Vasuki snake (used as rope) started spewing venom.

Unable to bear the intense heat, Devas rushed to Siva. He told them that this was because the task was started without getting Ganesha’s approval.
So the Devas created a Ganesha murti from white sea foam and worshipped it.
It was later taken by Indra to Indralok.
@GunduHuDuGa

But once Indra had to come to Earth to pray to Shiva to seek relief from a curse inflicted on him. So he brought the murti of Ganesha with him. When he came here, he wanted to take bath before puja. So he gave the murti to a boy to hold for sometime. The boy was actually Shiva.

He kept the murti down and vanished. Indra could not lift it again and a divine voice told him to let Vinayagar stay there and visit every Ganesh Chaturthi to pray.
Since Vinayagar is made of foam, no abhishekam is done here. Only punugu is applied n camphor powder is sprinkled