#Divis - #weekly

Reverse C & H in formation, any breakdown can lead to massive gap filling. 📈

@CAPratik_INDIAN @chartmojo @ca_mehtaravi

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.

SRI VARAHA NARSIMHA, SIMHACHALAM, VIZAG (AP)
#bharatmandir

One of the 32 Narsimha Kshetram of Andhra. It has a unique form of Narsimha, appearing like a shivlingam

It is said that Narsimha’s fierce nature is soothed by worshipping him with Varaha, considered a peaceful deity

The shrine is believed to have been constructed by Prahlada. With time, it crumbled.
In Treta yuga, King Pururava was passing from here in his vimana. The vimana was attracted to this place by a mystic power.
When the place was unearthed, the deity was found.
@GunduHuDuGa

Pururava’s wife, Urvashi, had a dream that the deity should remain covered in sandalwood paste for the whole year except on Akshaya Tritiya.
This practice has continued till date.
The mukhya mandap here, has a pillar kappam stambham believed to possess curative powers.

Chandanotsava/ Chandan Yatra is the most important festival celebrated on Akshaya Tritiya. The sandalwood paste is removed from the moolavar deity and nijarupa darshan (original form of deity) for twelve hours of the day are done by devotees.

8 March 1679 - The date on which 300 saffron clad warriors gave their life to protect temples from mugal army. Thread➡️
Aurangzeb's huge army, which was adorned with artillery, elephant and horses, under the leadership of Commander Darab Khan had marched to punish the ruler of/1

Khandela Raja Bahadur Singh, who became a rebel due to the anti-Hindu policies of Aurangzeb, and to destroy the temples of Shekhawati. Bahadur Singh to compete with such a large army, vacated Khandela for the purpose of conducting guerilla warfare and went Kot Sakrai /2

located in the inaccessible hills of Sakrai. People of Khandela also vacated Khandela and hid in nearby villages.

But some Shekhawat warriors did not like this as they knew that the royal army would not leave a single temple located in Shekhawati unbroken./3

so soon the teams of self-sacrificing Dharma-protectors Shekhawat heroes started reaching Khandela to protect the Dev temples.

Sujan Singh Shekhawat, the young thakur of Chhapoli, was coming back from his wedding when he heard about the imperial army from Shepherds./4

झिरमीर झिरमिर मेहा बरसे,मोरां छतरी छाई |
कुल में है तो आव सुजाण, फोज देवरे आई ||

if you are born in your glorious clan, then come, the army have come to destroy temple. /5

Remembering Colonel Anil Kaul, VrC (Retd) on his 3rd Death Anniversary.

“It was October 12, 1987, exactly 5:55 pm as I was… coming out of the cupola of my T-72 tank on a steamy evening in an unknown place called Kokkuvil in the Jaffna district of Northern Sri Lanka.+

I froze in that confined space at what I saw. An LTTE militant stood at 60 meters aiming his rocket-propelled gun at my tank.

In a flash he fired. Probably having lost his nerve he aimed too low. The projectile hit the left mudguard of the tank, but for some inexplicable reason+

did not explode. It then hit the side of the main gun and then exploded on top of the turret, all in a fraction of a second. Before I knew, it seemed I had received a straight right punch so to say to my chin. I saw some blood appear on my left hand and there was a sharp drop in+

my eyesight.

Lt Colonel (now Lt Gen) Dalbir Singh, then Commanding Officer of 10 Para Commando, who was standing on the engine deck said to me, “Yaar what a close shave.”

He suddenly saw me and the look on his face told me that something was very very wrong with me. In that+

fraction of a second, as if it was a rewind of my entire life, thoughts raced through my life as to how and when I had landed myself in such a situation…

I asked my gunner to pull out a first field dressing (FFD) which is standard equipment in a first aid box carried in each+