PyCharm : My Notes


PyCharm is an IDE for Python development. Here are few key take away points:

$ pip freeze > requirements.txt
This will create a requirements.txt file, which contains a simple list of all the packages in the current environment, and their respective versions. Later, when a different developer (or you, if you need to re- create the environment) can install the same packages, with the same versions by running

$ pip install -r requirements.txt

================================================================================

Code Completion

1. Basic : Ctrl + Space
2. Smart : Ctrl + Shift + Space
3. Within context : Atl + /        Atl + Shift + /
4. Post Fix completion : Space OR Enter OR Tab

Ctrl + Shift + Enter to make all auto corrections

================================================================================

Pipenv is a tool that provides all necessary means to create a virtual environment for your Python project. It automatically manages project packages through the Pipfile file as you install or uninstall packages.

================================================================================

Two settings

1. Project level settings are applied to current project and stored at : 
C:\Users\\PycharmProjects\schoop_app\.idea

2. Global settings are like template, it applies to new projects. Files-> Settings for new projects

================================================================================

Keyboard short cut

Double Shift : search

Ctrl+N
Ctrl+Shift+N
Ctrl+Shift+Alt+N : Find and jump to the desired class, file, or symbol.

Ctrl+E : View Recent Files-

================================================================================

AI-ML Algorithm


  1. Choosing the right estimator (scikit-learn) : http://scikit-learn.org/stable/tutorial/machine_learning_map/
  2. How to choose algorithms for Azure Machine Learning Studio : https://docs.microsoft.com/en-us/azure/machine-learning/studio/algorithm-choice
  3. A Tour of Machine Learning Algorithms : https://machinelearningmastery.com/a-tour-of-machine-learning-algorithms/
  4. Guidelines to Select Machine Learning Scheme for Classification of Biomedical Datasets http://nexginrc.org/Publications/pub_files/evobio09-ajay.pdf
  5. A Tour of The Top 10 Algorithms for Machine Learning Newbies : https://towardsdatascience.com/a-tour-of-the-top-10-algorithms-for-machine-learning-newbies-dde4edffae11
  6. Machine Learning Algorithms: Which One to Choose for Your Problem : https://blog.statsbot.co/machine-learning-algorithms-183cc73197c

Yantra


Yantra (यन्त्र) (Sanskrit) (literally "machine, contraption" is a mystical diagram, mainly from the Tantric traditions of the Indian religions



They are used for the worship of deities in temples or at home; as an aid in meditation; used for the benefits given by their supposed occult powers based on Hindu astrology and tantric texts. They are also used for adornment of temple floors, due mainly to their aesthetic and symmetric qualities. Specific yantras are traditionally associated with specific deities.



Yantras are usually associated with a particular deity and are used for specific benefits, such as: for meditation; protection from harmful influences; development of particular powers; attraction of wealth or success, etc.They are often used in daily ritual worship at home or in temples, and sometimes worn as a talisman.

As an aid to meditation, yantras represent the deity that is the object of meditation. These yantras emanate from the central point, the bindu. The yantra typically has several geometric shapes radiating concentrically from the center, including triangles, circles, hexagons, octagons, and symbolic lotus petals. The outside often includes a square representing the four cardinal directions, with doors to each of them

Yantras can be on a flat surface or three dimensional. Yantras can be drawn or painted on paper, engraved on metal, or any flat surface. They tend to be smaller in size than the similar mandala, and traditionally use less color than mandalas.

Occult yantras are used as good luck charms, to ward off evil, as preventative medicine, in exorcism, etc., by using their magical power. When used as a talisman, the yantra is seen to represent a deity who can be called on at will by the user. They are traditionally consecrated and energized by a priest, including the use of mantras which are closely associated to the specific deity and yantra. Practitioners believe that a yantra that is not energized with mantra is lifeless

A yantra comprises geometric shapes, images, and written mantra. Triangles and hexagrams are common, as are circles and lotuses of 4 to 1,000 petals.


Image Courtesy : Desktop calendar of year 2017 by Ganesha Housing Corporation Limited






AI/ML for SMB


1. Salesforce Einstein AI Intelligent CRM

2. MailChimp : Email marketing

3. Clare.AIClare.AI is an example of a plug and play app for (1) online banking services, and (2) to handle a larger volume of customer inquiries without hiring more staff.

4. Malaysian company, Supahands for upwork like service to select crowd sourcing v/s freelancer 

5. smart speaker or home robot can be used at retail outlet

6. Digital Genius : Intelligent customer service query. The AI platform for customer service

7. Acquisio : online ads on Facebook, Bing, Adwords

8. Darktrace : Data security. 
Enterprise Immune System technology for cyber security.

9. Crayon : Competitor analysis

10. Aivo : chat bot

11. ThoughtSpot business-intelligence analytics search software 

12. Datoramaend to end marketing integration platform 

13. VoxPro multilingual customer experience and technical support solutions 

14. bold360 Better customer engagement


16. SAP CoPilot: Digital Assistant in the Enterprise

17. Deloitte: Machine-Learning Contract Reviews

18. AISense: Call, Meeting Transcriptions


19. WalkMe: AI for Software Training. Integrated with Athenahealth, Salesforce, Workday etc.


20. Workday: Finance and HR

21. Athenahealth uses WalkMe to train doctor, nurse about how to use system

22. ServiceChannel for restaurants

23. Niles for conversation

24. MESHNot Rocket Science: Branded Bots


25. Acculation Social Media content decision.

Node.js


What is Node.js?

Node.js is JavaScript runtime built on Chrome’s V8 JavaScript engine.

- Event Driven
- Non-Blocking
- Single thread

For Details
Read: https://nodesource.com/blog/understanding-the-nodejs-event-loop/
Watch: https://www.youtube.com/watch?v=8aGhZQkoFbQ

Its package eco system is npm : https://www.npmjs.com/ It contains over 400k public library. 

How to install Node.js Refer : https://github.com/creationix/nvm

Why one should user Node.js ? https://blog.hellotangible.com/10-reasons-to-use-node-js-b74ed06bb366

Node.js core API : https://nodejs.org/api/

Hapi HTTP server https://hapijs.com/

Getting Started with NPM https://docs.npmjs.com/getting-started/what-is-npm

Ref: https://blog.hellotangible.com/an-absolute-beginners-guide-to-node-js-c27e6d108b5c