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Santiago
@svpino 3 years, 10 months ago 1034 views

My recommendation to start learning how to deal with structured data: Kaggle's Pandas Tutorial.

• Creating, Reading, Writing
• Indexing, Selecting, Assigning
• Summary Functions, Maps
• Grouping, Sorting
• Data Types, Missing Values
• Renaming, Combining

100% Python 🐍.

More from Santiago

I sat next to one of the smartest, most successful software engineers in the country for over 10 years.

Here's what I learned.

Fast is 10 times better than good.

9 out of 10 times, a "good enough" solution is all you need to unlock time, money, and attention.

Focus relentlessly on being first. Then take the time to be right.

Fast, then right.

Ship more frequently.

The faster you show your work to your users, the faster you'll hear their feedback, you'll adapt, and you'll ship again.

A question you should ask every day:

What can I do to ship this one day before planned?

Technical debt is a good thing.

Everyone hates technical debt. I think they don't know how to take advantage of it.

When used appropriately, technical debt means working on what truly matters and deferring anything that can wait.

No debt ⟶ You waited too long.

Ask, don't think.

People burn their time every day instead of asking for help.

You don't get extra points for working harder, especially when a little help will make you faster.

Time is your most valuable resource. Don't waste it.

Santiago
@svpino

What's machine learning?

Not a framework. Not a different language. Not the latest "cool" thing around the Internet.

Thread: Let me convince you that machine learning is the best thing since sliced bread 🍞.

Let's start with a simple exercise:

"Write a function that returns 0 if a supplied number is even or 1 if the number is odd."

If you are a developer, I'm sure you know how to write this function. It should be simple, right?

To avoid using a specific syntax, let's represent this function as follows:

y = f(X)

Where:
• X → The input number
• y → The result (0 if even, 1 otherwise)
• f → The function that does the work

We can now get to the interesting part.

If you are a programmer, writing this function is simple.

You know the relationship between X (the input number) and y (the output), so you can easily write the rules (the function.)

In machine learning, we don't write the rules. We learn them.

Imagine we had an algorithm that processes many samples (X → y), learns the relationship between them, and comes up with the correct rules.

We call these samples "training data," and they would like like this:

• 2 → 0
• 5 → 1
• 8 → 0
• 4 → 0
• 3 → 1
• ...

Santiago
@svpino

Many machine learning courses that target developers want you to start with algebra, calculus, probabilities, ML theory, and only then—if you haven't quit already—you may see some code.

I want you to know there's another way.

↓

2. For me, there's no substitute to seeing things working, trying them out myself, hitting a wall, fixing them, seeing the results.

A hands-on approach engages me in a way pages of theory never will.

And I know many of you reading this are wired just like me.

3. I feel that driving a car is a good analogy.

While understanding some basics are necessary to start driving, you don't need to read the entire manual before jumping behind the wheel.

As long as you practice in empty parking lots and backroads, you'll be fine.

4. As you make your way to public roads, you can start incorporating more of the theory that will help you stay safe.

At this point, that theory won't be lost on you: your hours behind the wheel will help you make the necessary connections.

Things will start clicking quick.

5. I've talked to people struggling with derivatives that have no idea why or when they'll become helpful.

I've seen others memorizing what eigenvectors are, or manually transposing matrices because "that's what it takes."

Honestly, for the most part, it's not.

Santiago
@svpino

Interviews aren't only about technical skills.

Here are some questions to help you prepare.

🧵👇

Explain what you have been working on for the past few weeks.

What are the most exciting parts about that work?

What portion of it do you consider boring and why?

[2 / 10]

What specific libraries and frameworks are you familiar with?

What's the minimum set of libraries and frameworks that you'd recommend to any practitioner?

[3 / 10]

What kind of problems have you worked on in the past?

Can you list the specific use cases related to each one of these?

[4 / 10]

What is the most exciting project you have ever worked on?

What was your role and responsibilities on that project?

Why do you think your work on that project was important?

[5 / 10]

Santiago
@svpino

12 machine learning YouTube videos.

On libraries, algorithms, tools, and theory.

↓

1. Jupyter Notebooks: https://t.co/HqE9yt8TkB

2. Pandas: https://t.co/aOLh0dcGF5

3. Matplotlib: https://t.co/tKADpmihkh

4. Seaborn: https://t.co/s8EUxh6x1f

5. Numpy: https://t.co/pJoc0Lfjwm

6. Decision Trees: https://t.co/tKtUpO1K3l

7. Neural Networks: https://t.co/bc7emyjc9q

8. Scikit-Learn: https://t.co/LrKG7cMxRq

9. TensorFlow: https://t.co/fhO6T9sblU

10. PyTorch: https://t.co/5w9mJxijdd

11. Essense of Linear Algebra: https://t.co/o3kOnxl90i

12. Essense of Calculus: https://t.co/rfo7v0cpR4

More from All

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!!

Anastasis
@OrdersofM

https://t.co/6cRR2B3jBE
Viruses and other pathogens are often studied as stand-alone entities, despite that, in nature, they mostly live in multispecies associations called biofilms—both externally and within the host.

https://t.co/FBfXhUrH5d

Microorganisms in biofilms are enclosed by an extracellular matrix that confers protection and improves survival. Previous studies have shown that viruses can secondarily colonize preexisting biofilms, and viral biofilms have also been described.

...we raise the perspective that CoVs can persistently infect bats due to their association with biofilm structures. This phenomenon potentially provides an optimal environment for nonpathogenic & well-adapted viruses to interact with the host, as well as for viral recombination.

Biofilms can also enhance virion viability in extracellular environments, such as on fomites and in aquatic sediments, allowing viral persistence and dissemination.

$\u0936\u094d\u0930\u0940\u092e\u093e\u0932\u0940 \u0939\u093f\u0924\u0947\u0936 \u0905\u0935\u0938\u094d\u0925\u0940$

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

Angela Jamison
@AnJamison

@LakotaMan1 @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

Buzz Chronicles
@buzz_chronicles

@SaveToBookmarks Ciao! Of course! Original tweet by @AnJamison: "@bellingcat @buzz\_chronicles @buzz\\\_chronicles @buzz_chronicles save as categ...". Cheers! 👌

Nǐ hǎo! You can find it here. Original tweet by @SaveToBookmarks: "@AnJamison @bellingcat @buzz @buzz_chronicles @pdfmakerapp @Readwiseio @threader...". Enjoy 👌

Ok, it's high time to look at the REAL effects of Brexit. As the Tories implode & Labour sits on its hands, companies are executing contingency plans, shifting jobs & assets, slashing investments, or redomiciling (accounting exercise). Happening NOW, not in a fantasy future. 1/95

Barden Corporation is closing down its Plymouth factory after 51 years, putting 400 jobs at risk, as its parent company Schaeffler shifts production to various sites outside the UK due to Brexit.

8 health providers have warned of medicine shortages in the event of a no-deal Brexit: "we do not believe that the current medicine supply plans will suffice, and we will have widespread shortages if we do not respond urgently."

Pfizer - $100 million on Brexit prep: "Pfizer’s preparations are well advanced to make the changes necessary to meet EU legal requirements after the U.K. is no longer a member state, especially in the regulatory, manufacturing and supply chain areas."

The Government has spent £4.2 billion pounds on Brexit preparations (£2.2 billion in previous Budgets, plus an additional £2 billion in the most recent Budget.)

Factualist
@FactualistCom

What is the difference between “pseudonym” and “stage name?”

Pseudonym means “a fictitious name (more literally, a false name), as those used by writers and movie stars,” while stage name is “the pseudonym of an entertainer.”

https://t.co/hT5XPkTepy #english #wiki #wikidiff

People also found this comparison helpful:

Alias #versus Stage Name: What’s the difference?

Alias means “another name; an assumed name,” while stage name means “the pseudonym of an entertainer.”

https://t.co/Kf7uVKekMd #Etymology #words

Another common #question:

What is the difference between “alias” and “pseudonym?”

As nouns alias means “another name; an assumed name,” while pseudonym means “a fictitious name (more literally, a false name), as those used by writers and movie

Here is a very basic #comparison: "Name versus Stage Name"

As #nouns, the difference is that name means “any nounal word or phrase which indicates a particular person, place, class, or thing,” but stage name means “the pseudonym of an