Saturday, July 1, 2017

That'll be it

The few things I want to say, I cannot.  

Plus, there's not much, anyway.

Thank you to those who stuck around. 

Been good. 

Friday, June 30, 2017

Friends after a fight

They still met every other day, although their friendship now was like that of two people who used to know each other years ago, but whose paths had diverged so much that there was little any more to talk about, even if the fondness remained intact, or deepened, even, and now sat awkwardly between them like an empty plate devoid of food they were supposed to share, and while they did now text each other every night, there were hardly any words exchanged, just emoticons of various kinds, at once necessary and inadequate, filling in for that which cannot be replaced.

Tuesday, June 13, 2017

Short bursts of time travel

I sometimes remember, out of the blue, instances from decades ago, from when I was five, playing ball with another tenant's kid on the roof, who remarked that I was playing very well for someone my age, or from when I was six and wanted a cool pencil box like one of my classmate's that opened on the press of a button and had a mini-piano of sorts affixed to its lid, but I never really was able to get one for myself, or from when I was seven, and after much tenacity got my parents to buy me an umbrella that you wore like a headband rather than carry like a stick and which really caught the fancy of the girls in my class, as I knew it would. And when I'm thrown back, without asking, without demand, into these ephemeral episodes, I am five, or six, or seven again, and it is immense. And sometimes, I'm thrown back to being 23, and that is euphoria, but I can't talk about it here.

Monday, May 8, 2017

Sustainability of factors

Swedroe and Berkin posit that factors in factor-based investing should be persistent over time, across geographies, investable, simple and intuitive. 

Friday, April 21, 2017

DL 101

1. A friendly intro to neural nets by Karpathy (Link)

2. Get started with DL coding with bare essentials, w/o worrying about AWS setup or theory (Link)

3. Now do worry about AWS setup (video, scripts)

4. Intro to image classification  - Nearest Neighbour classifier, Linear classifier

5. Get running keras image classification script (dogs vs cats competition) under AWS setup (PDLC_Lec_1, PDLC_Lec_1_notebook)

6. More on dogs_vs_cats project and a coding intro to neural nets and gradient descent (PDLC_Lec_2, PDLC_Lec_2_notebook)

7. A concept-heavy deep dive into loss functions and gradient descent (Link)

8. A concept-heavy intro to Backprop and Activation functions (Link)

9. A concept-heavy intro to Neural network architecture (Link)

10. A coding-heavy intro to 'Convolutional' Neural network architecture (PDLC_Lec_3, PDLC_Lec_3_notebook)

11. A concept-heavy intro to 'Convolutional' neural network architecture: Link1, Link2, Tranfer Learning

12. Practical advice on data-preprocessing, Regularization, Loss function intuition, batch normalization (Link)

13. Optimization revisited, Statefarm competition, semi-supervised learning, collaborative filtering PDLC_Lec_4, PDLC_Lec_4_notebook

14. Practical advice on parameter tuning, learning rates, model ensembling. (Link)

15. Code-heavy guide to batch normalization, intro to NLP, intro to RNN (PDLC_Lec_5, PDLC_Lec_5_notebook)

16. Implement your own neural network from scratch (Link)

17. RNN continued, Theano (PDLC_Lec_6, PDLC_Lec_6_notebook)

18. Concept-heavy RNN by Karpathy (Link)

19. Coding-heavy CNN 2.0, Advanced RNN with GRU and LSTM (mainly GRU), Fisheries competition (PDLC_Lec_7, PDLC_Lec_7_notebook)

___

Path I intend to follow, before setting out to do anything: 1, 2, 3, 4, ... 18, 19
___

Path I actually follow (will keep editing this as I go along):

1, first half of 2, 4
____

After DL101:

DL102: Part 2 of the FastAI course
DL103: Generative Adversarial networks (Link)
DL104: http://rll.berkeley.edu/deeprlcourse/ + Karpathy post on RL + OpenAI Gym


Friday, March 24, 2017

Two short poems


बेक़रारी सी बेक़रारी है, वस्ल है और फ़िराक़ तारी है
जो गुज़ारी न जा सकी हमसे, हमने वो ज़िन्दगी गुज़ारी है

- Jon Elia


(1)

She will have no more
of his impatience.
If he really loved her, 
he needed to learn to wait. 
Wait how much? he asked. 
A lifetime, she said proudly.
He waited.
A lifetime.

[April 2014, Princeton]

(2)

You told me, politely,
to go away.
I did.

[June 2009, New Delhi]

Saturday, March 18, 2017

छोड़ो भी

जब हम में था क़रार, मिलती थी हफ्ते एक बार
अब  जो कुछ भी न रहा, अब क्यों रोज़ आती हो?

अब तो फ़िराक को भी गए हो चली हैं मुददतें
ये कोई सलात तो नहीं जो सुभ-ओ-शाम गाती हो !

शब भर मुस्कुरा के कहती हो माफ़ किया छोड़ो भी
आँख खुलते ही मगर पल में चली जाती हो।

Thursday, March 2, 2017

No non-sense man


Tuesday, February 28, 2017

کیا کیا نہیں رہا

جس دن سے تو میرا نہ رہا
کسی سے کوئی گلا نہ رہا 

نوکری، پیشہ، گاڑی، گھر، مکان،
حسرتوں کا یہ سلسلہ نہ رہا 

نہ رہا شوق گھر کو آنے کا 
بہار کا بھی کافلا نہ رہا 

Monday, January 9, 2017

Triveni

यूँ हिचकिचा के तेरी तस्वीर फिर उठाई है
जैसे लौट जाता हो कोई शख्स दरवाजे से
अब अगर गौर से देखूंगा, तो मर जाऊंगा