1648660860

# Precalculus Course: Subset, Strict Subset, and Superset

Sal explains the difference between a subset, a strict subset, and a superset. He also explains the notation behind these ideas.

Let's define ourselves some sets. So let's say the set A is composed of the numbers 1. 3. 5, 7, and 18. Let's say that the set B-- let me do this in a different color-- let's say that the set B is composed of 1, 7, and 18. And let's say that the set C is composed of 18, 7, 1, and 19. Now what I want to start thinking about in this video is the notion of a subset. So the first question is, is B a subset of A? And there you might say, well, what does subset mean? Well, you're a subset if every member of your set is also a member of the other set. So we actually can write that B is a subset-- and this is a notation right over here, this is a subset-- B is a subset of A. B is a subset. So let me write that down. B is subset of A. Every element in B is a member of A. Now we can go even further. We can say that B is a strict subset of A, because B is a subset of A, but it does not equal A, which means that there are things in A that are not in B. So we could even go further and we could say that B is a strict or sometimes said a proper subset of A. And the way you do that is, you could almost imagine that this is kind of a less than or equal sign, and then you kind of cross out this equal part of the less than or equal sign. So this means a strict subset, which means everything that is in B is a member A, but everything that's in A is not a member of B. So let me write this. This is B. B is a strict or proper subset. So, for example, we can write that A is a subset of A. In fact, every set is a subset of itself, because every one of its members is a member of A. We cannot write that A is a strict subset of A. This right over here is false. So let's give ourselves a little bit more practice. Can we write that B is a subset of C? Well, let's see. C contains a 1, it contains a 7, it contains an 18. So every member of B is indeed a member C. So this right over here is true. Now, can we write that C is a subset? Can we write that C is a subset of A? Can we write C is a subset of A? Let's see. Every element of C needs to be in A. So A has an 18, it has a 7, it has a 1. But it does not have a 19. So once again, this right over here is false. Now we could have also added-- we could write B is a subset of C. Or we could even write that B is a strict subset of C. Now, we could also reverse the way we write this. And then we're really just talking about supersets. So we could reverse this notation, and we could say that A is a superset of B, and this is just another way of saying that B is a subset of A. But the way you could think about this is, A contains every element that is in B. And it might contain more. It might contain exactly every element. So you can kind of view this as you kind of have the equals symbol there. If you were to view this as greater than or equal. They're note quite exactly the same thing. But we know already that we could also write that A is a strict superset of B, which means that A contains everything B has and then some. A is not equivalent to B. So hopefully this familiarizes you with the notions of subsets and supersets and strict subsets.

1648660860

## Precalculus Course: Subset, Strict Subset, and Superset

Sal explains the difference between a subset, a strict subset, and a superset. He also explains the notation behind these ideas.

Let's define ourselves some sets. So let's say the set A is composed of the numbers 1. 3. 5, 7, and 18. Let's say that the set B-- let me do this in a different color-- let's say that the set B is composed of 1, 7, and 18. And let's say that the set C is composed of 18, 7, 1, and 19. Now what I want to start thinking about in this video is the notion of a subset. So the first question is, is B a subset of A? And there you might say, well, what does subset mean? Well, you're a subset if every member of your set is also a member of the other set. So we actually can write that B is a subset-- and this is a notation right over here, this is a subset-- B is a subset of A. B is a subset. So let me write that down. B is subset of A. Every element in B is a member of A. Now we can go even further. We can say that B is a strict subset of A, because B is a subset of A, but it does not equal A, which means that there are things in A that are not in B. So we could even go further and we could say that B is a strict or sometimes said a proper subset of A. And the way you do that is, you could almost imagine that this is kind of a less than or equal sign, and then you kind of cross out this equal part of the less than or equal sign. So this means a strict subset, which means everything that is in B is a member A, but everything that's in A is not a member of B. So let me write this. This is B. B is a strict or proper subset. So, for example, we can write that A is a subset of A. In fact, every set is a subset of itself, because every one of its members is a member of A. We cannot write that A is a strict subset of A. This right over here is false. So let's give ourselves a little bit more practice. Can we write that B is a subset of C? Well, let's see. C contains a 1, it contains a 7, it contains an 18. So every member of B is indeed a member C. So this right over here is true. Now, can we write that C is a subset? Can we write that C is a subset of A? Can we write C is a subset of A? Let's see. Every element of C needs to be in A. So A has an 18, it has a 7, it has a 1. But it does not have a 19. So once again, this right over here is false. Now we could have also added-- we could write B is a subset of C. Or we could even write that B is a strict subset of C. Now, we could also reverse the way we write this. And then we're really just talking about supersets. So we could reverse this notation, and we could say that A is a superset of B, and this is just another way of saying that B is a subset of A. But the way you could think about this is, A contains every element that is in B. And it might contain more. It might contain exactly every element. So you can kind of view this as you kind of have the equals symbol there. If you were to view this as greater than or equal. They're note quite exactly the same thing. But we know already that we could also write that A is a strict superset of B, which means that A contains everything B has and then some. A is not equivalent to B. So hopefully this familiarizes you with the notions of subsets and supersets and strict subsets.

1593242571

## Techtutorials | Online IT Courses, Training, Syllabus

Techtutorials tell you the best online IT courses/training, tutorials, certification courses, and syllabus from beginners to advanced level on the latest technologies recommended by Programming Community through video-based, book, free, paid, Real-time Experience, etc.

#techtutorials #online it courses #mobile app development courses #web development courses #online courses for beginners #advanced online courses

1672736040

## MLOps Zoomcamp

Our MLOps Zoomcamp course

## Overview

### Objective

Teach practical aspects of productionizing ML services — from collecting requirements to model deployment and monitoring.

### Target audience

Data scientists and ML engineers. Also software engineers and data engineers interested in learning about putting ML in production.

### Pre-requisites

• Python
• Docker
• Being comfortable with command line
• Prior exposure to machine learning (at work or from other courses, e.g. from ML Zoomcamp)
• Prior programming experience (at least 1+ year)

### Timeline

Course start: 16 of May

### Asking for help in Slack

The best way to get support is to use DataTalks.Club's Slack. Join the `#course-mlops-zoomcamp` channel.

To make discussions in Slack more organized:

## Syllabus

### Module 1: Introduction

• What is MLOps
• MLOps maturity model
• Running example: NY Taxi trips dataset
• Why do we need MLOps
• Course overview
• Environment preparation
• Homework

More details

### Module 2: Experiment tracking and model management

• Experiment tracking intro
• Getting started with MLflow
• Experiment tracking with MLflow
• Model registry
• MLflow in practice
• Homework

More details

### Module 3: Orchestration and ML Pipelines

• Workflow orchestration
• Prefect 2.0
• Turning a notebook into a pipeline
• Deployment of Prefect flow
• Homework

More details

### Module 4: Model Deployment

• Three ways of model deployment: Online (web and streaming) and offline (batch)
• Web service: model deployment with Flask
• Streaming: consuming events with AWS Kinesis and Lambda
• Batch: scoring data offline
• Homework

More details

### Module 5: Model Monitoring

• Monitoring ML-based services
• Monitoring web services with Prometheus, Evidently, and Grafana
• Monitoring batch jobs with Prefect, MongoDB, and Evidently

More details

### Module 6: Best Practices

• Testing: unit, integration
• Python: linting and formatting
• Pre-commit hooks and makefiles
• CI/CD (Github Actions)
• Infrastructure as code (Terraform)
• Homework

More details

### Project

• End-to-end project with all the things above

More details

### Module 7: Processes

• CRISP-DM, CRISP-ML
• ML Canvas
• Data Landscape canvas
• MLOps Stack Canvas
• Documentation practices in ML projects (Model Cards Toolkit)

(In October)

## Instructors

• Larysa Visengeriyeva
• Cristian Martinez
• Kevin Kho
• Theofilos Papapanagiotou
• Alexey Grigorev
• Emeli Dral
• Sejal Vaidya

## FAQ

I want to start preparing for the course. What can I do?

If you haven't used Flask or Docker

If you have no previous experience with ML

• Check Module 1 from ML Zoomcamp for an overview
• Module 3 will also be helpful if you want to learn Scikit-Learn (we'll use it in this course)
• We'll also use XGBoost. You don't have to know it well, but if you want to learn more about it, refer to module 6 of ML Zoomcamp

Yes, we haven't automated it. You'll get a mail from us eventually, don't worry.

If you want to make sure you don't miss anything:

Is it going to be live?

No and yes. There will be two parts:

• Lectures: Pre-recorded, you can watch them when it's convenient for you.
• Office hours: Live on Mondays (17:00 CET), but recorded, so you can watch later.

I just joined. Can I still get a certificate?

• To get a certificate, you need to complete a project
• There will be two attempts to do a project
• First: in July, second: in August
• If you manage to finish all the materials till August, and successfully finish the project, you'll get the certificate

Author: DataTalksClub
Source Code: https://github.com/DataTalksClub/mlops-zoomcamp

1582887065

## Leadership Courses | Learn How to Speak Like a Leader | Simpliv

Description
Imagine that every time you speak, people perceive you as a confident and authoritative leader. Wouldn’t it be nice to know that you can speak in a confident manner and in a way that is instantly understandable and memorable to your audience?

In this How to Speak Like a Leader course you will learn the following:

How to avid the most common speaking blunders that undermine authority
How to increase eye contact with your audience
How to structure your presentation so that you don’t seem like a mid-level bureaucrat
How to prepare in the least amount of time possible
This course is delivered primarily through spoken lecture. Because the skill you are learning is speaking related, it only makes sense that you learn through speaking.

The skill you will learn in this class is not primarily theoretical or academic. It is a skill that requires physical habits. That is why you will be asked to take part in numerous exercises where you record yourself speaking on video, and then watching yourself. Learning presentation skills is like learning how to ride a bicycle. You simply have to do it numerous times and work past the wobbling and falling off parts until you get it right.

This course contain numerous video lectures plus several bonus books for your training library.

TJ Walker has been coaching and training people on their presentation skills for 30 years. Now, through the power of Simpliv’s online platform, he is able to give you the same high quality training that he gives in person to CEOs, Fortune 500 executives, and Presidents of countries. Only you can now receive the training at a tiny fraction of the normal fee for in-person training.

How long this course takes is up to you. The longest part of the course involves you speaking on video, critiquing yourself, and doing it over until you like it. But if you get to the point where you love how you look and sound when you present it will be well worth the time spent. And having this skill will save you time for all future presentations in your life.

You can begin improving your leadership presentation skills right now. You may have an opportunity to speak out as soon as tomorrow, so why waste another day worried that your presentation skills are not up to high standards. Enroll in this course today.

There is a 100% Money-Back Guarantee for this course. And the instructor also provides an enhanced guarantee.

What others say:

“TJ Walker’s single-minded devotion to presentation has made him the #1 expert for executives seeking guidance on speaking to the public and media." Bob Bowdon, Anchor/Reporter, Bloomberg Television

“TJ Walker is the leading media trainer in the world." Stu Miller, Viacom News Producer

(TJ Walker’s Media Training Worldwide) “The world’s leading presentation and media training firm."Gregg Jarrett, Fox News Channel Anchor

Who is the target audience?

Anyone how is a leader or who aspires to be a leader
Leaders who wish to speak more effectively
Basic knowledge
Students will need to record themselves speaking using a cellphone camera or webcam
What will you learn
Speak with the confidence and authority of a leader
Project competence
Present ideas in an understandable manner

ENROLL

1582886694

## Journalism Courses | Media TV Reporters and News Anchors course | Simpliv

Imagine appearing on a network newscast as a reporter or anchor and you look as confident, poised and articulate as any childhood idol you grew up watching. Wouldn’t it be nice to know that you can look and sound exactly the way you want when you are conducting interviews or anchoring a newscast?

In this On-Camera Skills for TV Reporters and News Anchors course you will learn the following:

How to look comfortable, confident and relaxed on TV
How to sound conversational
How to rehearse using video, and how to critique yourself
How to make constant on-air improvements

#Journalism Courses #News Anchors course #TV Reporters and News Anchors course