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"A Data-Based Perspective on Transfer Learning"

Different classes in a pretraining dataset can have different effects on downstream accuracy. And you can use this to your advantage. [1/9]

 They assess these effects using a simple algorithm that trains different models on different subsets of the data and looks at both the class counts and the predictions for each model on each downstream sample. [2/9]
Using their scoring function, you can intelligently remove subsets of classes from the pretraining dataset in order to significantly raise downstream accuracy. [3/9]
Another use of their method is identifying more granular subpopulations than what a downstream task has annotated. E.g., you can find which CIFAR-10 images look most like ostriches even though CIFAR-10 only has the label “bird”. [4/9]
You can also use a similar idea to understand model failure modes or identify data leakage. [5/9]
And last but not least, you can use it to understand helpful/harmful samples in your pretraining dataset. [6/9]
Overall their algorithm seems like a great tool to have in the toolbox. [7/9]
Paper: https://t.co/CKg0nxmSxE

If you like this paper, consider RTing this (or another!) thread to publicize the authors' work, or following the authors: @saachi_jain_ @hadisalmanX @Alaa_Khaddaj… [8/9]
@saachi_jain_ @hadisalmanX @Alaa_Khaddaj …@RICEric22 @ssung_mminn @aleks_madry

For more paper summaries, you might like following @mosaicml, me, or my newsletter: https://t.co/5BMBC84xY8

As always, comments and corrections welcome! [9/9] https://t.co/8VRLAGmrfQ

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श्रीमाली हितेश अवस्थी...
@HiteshAwasthi89
#Thread
Lessor known facts of Sudarshan Chakra or Neela Chakra of Puri Jagannath Temple.

The metal wheel at the top of Bhagwan Jagannath temple is also known as Neela Chakra (Blue Wheel). The wheel is made of eight metals comprising of.. 1/n


iron, copper, zinc, mercury, lead, brass, silver & gold. It's circumferance is about 36 feet & it is so designed that there is a wheel within the wheel. The circumferance of the inner wheel is about 26 feet. Eight hubs join together the inner and the outer wheels. 2/n


There are decorative designs on the outer wheel. The thickness of the Neela Chakra is 2 inches.The wheel is said to be Bhagwan Vishnu's most powerful weapon, Sudarshana Chakra. Inside Jagannath temple, Lord Vishnu's wheel is also worshipped in the name of 'Sudarshana'. 3/n


But inside the temple Sudarshana is not in the shape of a wheel, but in the shape of a small wood pillar placed to the left of image of bhagwan Jagannath. It is believed that the same Sudarshana is also at the top of the temple and is known by the name of Neela Chakra. 4/n


There is a specific category of people among the temple sevaks to serve the Neela Chakra and they are known as Garuda Sevaka or Chunara Nejoga. The pilgrims hold these sevaks in high esteem because everyday at Sunset. 5/n
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Emma Hilton
Emma Hilton
@FondOfBeetles
This is Kuinini ‘Nini’ Manumua, the woman who was ultimately displaced by inclusion of Laurel Hubbard.

She’s 21, and it would have been her first Olympics.
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Khatvaanga
Khatvaanga
@khatvaanga
Sri Gurubhyo Namah.
Some tweets on Adi Shankaracharya and in particular the Guru Parampara of @sringerimath. [I had done this series earlier 5 years ago on account of Shishya Sweekaram].


Adi Shankara established the Sringeri Peetham as the 1st of 4 amnaaya peetams.

The four being
1. Sarada Peetam at Sringeri.
2. Govardhana Peetam at Puri
3. Kalika at Dwaraka
4. Jyothir at Badarikashramam.

He installed his 4 most prominent shishyas as heads of the peetams.

Sureshwaracharya was assigned to Sringeri as its head.

Sringeri is a corruption of Rshyashrunga giri.

Rshyashrunga maharshi [and his father Sri Vibandhaka Maharshi] did their tapas at this place.

It is at Sringeri that Shankara spent 12 of His precious 32 years!!

That gives you and idea how much He loved this place.

Rshyashruga maharshi had a horn on his forehead, a result of being born to a deer. His mere presence was enough to shower rains!!

Rshyashrunga was one who led Putrakamesthi Yaagam of Dasaratha Maharaj and which resulted in Sri Rama's birth!!
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Angela Jamison
Angela Jamison
@AnJamison
@SethAbramson @buzz\_chronicles @buzz\\\_chronicles @buzz_chronicles save as category @pdfmakerapp grab @pdfmakerapp grab this @readwiseio save @readwiseio save thread @threader compile summarize @Threadreaderapp unroll please @ttttreads unroll @unrollthread.com @SaveToBookmarks
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Learn Python With Rune
Learn Python With Rune
@PythonWithRune
9 Python resources that will fast-track your learning

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RISHI PINGALA:THE ANCIENT INDIAN SAGE DISCREDITED FOR HIS MAJOR CONTRIBUTIONS TO MATHEMATICS & PHI

Have you ever heard about,"The Golden Ratio"?
The Golden Ratio or Phi(Greek) is a mathematical ratio of nature. Mother Nature is the most exquisite artist in herself.


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&this series is responsible for everything dat is beautiful on this planet. Just try to calculate the ratio of any 2 successive numbers ÷ each of them by the number before it in above infinite series.

E.g. 3/2=1.5, 5/3=1.666, 8/5=1.6, 34/21=1.61904 and so on. Did you notice something? The ratio is coming almost same every time. This ratio is called 'Phi 'which is numerically represented as 1:1.618. This Golden Spiral is made in exact proportion of 1:1.618.


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Multiverse is mentioned in several of Hindu Scriptures.

In 1927 came a theory named 'Big Bang' which was a scientific effort to provide some explanation about how our Universe came into existence. It suggested that Universe started as a tiny, hot and dense...


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Billy Bostickson \U0001f3f4\U0001f441&\U0001f441 \U0001f193
Billy Bostickson 🏴👁&👁 ...
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1/x Fort Detrick History
Mr. Patrick, one of the chief scientists at the Army Biological Warfare Laboratories at Fort Detrick in Frederick, Md., held five classified US patents for the process of weaponizing anthrax.

2/x
Under Mr. Patrick’s direction, scientists at Fort Detrick developed a tularemia agent that, if disseminated by airplane, could cause casualties & sickness over 1000s mi². In a 10,000 mi² range, it had 90% casualty rate & 50% fatality rate


3/x His team explored Q fever, plague, & Venezuelan equine encephalitis, testing more than 20 anthrax strains to discern most lethal variety. Fort Detrick scientists used aerosol spray systems inside fountain pens, walking sticks, light bulbs, & even in 1953 Mercury exhaust pipes


4/x After retiring in 1986, Mr. Patrick remained one of the world’s foremost specialists on biological warfare & was a consultant to the CIA, FBI, & US military. He debriefed Soviet defector Ken Alibek, the deputy chief of the Soviet biowarfare program
https://t.co/sHqSaTSqtB


5/x Back in Time
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• Positional Strangles
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