Daily Bookmarks to GAVNet 01/15/2021

AGAMA SHASTRA:THE SCIENCE BEHIND THE MARVELS OF HINDU ARCHITECTURE

Agama Shastra is a Sanskrit word that means the manual for worship, temple building, rituals etc in Hindu Tradition.From Sanskrit,agama means handed down by tradition and Shastra means a commentary or treatise.

Therefore, Agama Shastra is a collection of ideas that drafts the rules for worship, temple construction, spirituality and rituals. It has been a guideline for many Hindus from ancient times. It's a collection of Sanskrit, Tamil and Grantha scriptures that mostly contains...

...methods of temple construction, idol creation, philosophical doctrines and meditative practices. It came into being after years of assimiliation and from a variety of sources. Some parts of it are pre-vedic while some are post-vedic.

Hindu Temples are not just temples, they are the pride and identity of Hindus. They are the symbols of Hindu unity and their religious aspirations. Temples are the places of spiritual healing and are our connection with the creator almighty.

Temples are the priceless treasure of our History, Heritage ,Art & Architecture. Architecture that mesmerises and spell bounds you. And Agama Shastra is that very text which is responsible for such a mesmerising and spell binding quality and beauty of our Hindu Temples.

(An extract from Field Marshal Sam Manekshaw, Soldiering with Dignity)

The man eventually destined to be free India's first Field Marshal was born on 3rd April 1914 at Amritsar. How did a Parsi couple settle for the holy city of the Sikhs? I once asked him and was told that in+

1899, his father recently qualified as a doctor and just married, could make no professional headway in Bombay, and was advised to try his luck at Lahore in the Punjab. With his young wife, he set off by train for Lahore. The long dusty and hot journey took five days and by the+

end of it, his young wife, who had never left the comforts and civilization of Bombay, was in hysterics and cried to go back. Poor Dr Manekshaw did all he could to comfort her, but as the train steamed into Amritsar, with her first sight of the Sikhs the young bride screamed her+

lungs out and refused to go any further. So they left the train at Amritsar, and there they stayed for forty-five years.

The Manekshaws had six children, four boys and two girls, and Sam was the fifth child. Sam had his schooling at Nainital's Sherwood College.+

After completing his schooling, he should have gone to England to pursue higher studies; this was the promise made to him by his father but, fortunately for the Indian Army, Dr Manekshaw felt that this particular son was far too young to be on his own in a foreign country, even+

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.

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