Partitioning is an important technique when you have a large amount of data and like to partition it based on a pivot value. NumPy can do this very efficiently and it leads to some cool applications.
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Being fluent in NumPy goes a long way in becoming a data scientist π Today we are taking an important step in that direction! π
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Hi everyone ππ.I wanted to introduce Pandas to you in case itβs new to you. We will be working a lot with it in the future so a nice introduction will go a long way π.I have asked a few of my friends βΌοΈ to help me introduce Pandas to you by showing up on the post ππ.Jokes aside, Pandas is a really powerful data analytics library in Python that I use almost everyday. Itβs robust, fast, and great for prototyping data science problems π§ ..It quickly feels like youβre working with a database, so if you know SQL this wonβt feel too different..Let me know who your favorite founder is from the 4 on the picture. Iβll keep mine a secret for now. π
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π¨βπ»#Pandas
Hi everyone ππ.My friends are here again for part 2 of our intro to Pandasπππ.In Pandas, you can easily extract more useful data points from existing data in the table, and because Pandas has been optimized to work on large amounts of data, column operations are super fast π¨..Here I divide the foundersβ net worth by their age, to get a sense of their average wealth accumulation rate.Then I am interested to see whoβs accumulated wealth the fastest, so I sort the column in the descending order ππ».Super fast, in a few lines, I have answered a couple of my questions about my favorite founders π.
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π¨βπ»#Pandas
Hello all and welcome to the 3rd episode of our Intro to Pandas series @bigdataguru ππ.Our friends, the 4 founders, have been kind enough to show up once again to help us understand two important functions on Pandas π.groupby()mean().Groupby() as the name suggests groups the rows of data frame based on the values of a column of columns..The result of the groupby is usually used for aggregation of data, in the case finding the mean number of employees employed in given states by these 4 companies.With those in our toolset, we can now do incredible things with data ππ»ππ».
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π¨βπ»#Pandas
Hi data scientists πππ.A coincidence that the day we just finished was Valentineβs Day but I have been receiving a lot of love π from you guys lately! Many of you have reached out and supported the content, just know that itβs appreciated and it will make this page better! π.With that, letβs get to todayβs post, shall we?? .Of course when we are talking about Pandas, our good friends the founders are back to help us! π.However our founders have been having a little argument lately. Even one was allegedly heard calling another one βhey boomerβ βΌοΈ and the other responded back with βyou millennialβ π€¦π»ββοΈ Even though arguments are not nice, this gives us the chance to use Pandas to settle who is in what generation!.pd.cut allows us to categorize a continuous spectrum into bins π here our bins are the generations and the continuous spectrum is the year number π.After seeing exactly whoβs in what generation, our founders realize that they should apologize to each other. They have promised to treat each other better in the next post so stay tuned π£.Correction: founders_df[βBirthβ] should be founders_df[βBirthYearβ] βΌοΈβΌοΈ
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π¨βπ»#Pandas
Hello all and welcome to the post of the day π .Today, we are going to introduce Machine Learning and Deep Learning and talk about what makes them different π€ .In traditional machine learning, scientists had to define concrete and well defined features for the inputs, those features would then get fed into a neural network that would produce a prediction π.In deep learning however, we are leaving it to the network to learn and ultimately decide which features it seems relevant to the learning problem π‘ .This is precisely why deep learning is so powerful, everything end to end is learned by the network. The hard part then becomes designing the perfect network for a given problem π§ .Super excited to be going through this journey through AI with you guys. Stay tuned for more machine learning posts this coming week π
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π¨βπ» #Machine_Learning
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π¨βπ» #Machine_Learning
Hello data science enthusiasts ππ.Weekend calls for a machine learning related post, doesnβt it?.Machine learning historically started with the two main types: supervised and unsupervised..Overtime, a new type was invented βreinforcementβ learning, and now there is even more types ....So, what are they?.Supervised: training a model with labeled data points, you βsuperviseβ the model by giving it the βright answersβ.Unsupervised: you ask the model to tell you what it thinks the data classifications or clustering should be based on the pattern it can find in the data. This is a good approach for when there are no right answers or the right answers are not available..Reinforcement: this type is largely evolving and generally is orchestrated on a series of actions and rewards. The model learns over time what action to take and when to optimize its total rewards..Machine learning is fast moving field and the research in it brings a ton of new ideas every month ππ§ .We should be covering the different techniques used on this slide in the future posts so stay tuned π£π£
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π¨βπ» #Machine_Learning
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π¨βπ» #Machine_Learning
Hello everyone ππ.Today we are continuing our journey in machine learning with this 3rd post in the series π.Logistic regression is one of the most widely used and popular classification algorithms out there. Due to its diversity, simplicity and robustness, itβs become super popular as a baseline model all along the field π.At the heart of logistic regression, is the sigmoid function, a smooth function that takes any value and outputs a value between 0 and 1. This function allows for any input to be βclassifiedβ in one of the two binary classes after a threshold is applied π.Neat, right? π
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π¨βπ» #Machine_Learning
Hi everyone ππ and welcome to another βIntro to Machine Learningβ post π§ .Supervise Learning is everywhere. In fact, 90% of the problems I have solved so far with ML have been through Supervised Learning.With Supervised Learning, you can answer so many questions and become an expert in ML π.The two types of Supervised Learning are crucial to Artificial Intelligence: regression and classification.An example of regression is predictions the price of a home based on its number of bedrooms, number of bathrooms, size and age π ..An example of a classification problem could be predicting whether a cancer tumor is benign or not π .
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π¨βπ» #Machine_Learning
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π¨βπ» #Machine_Learning
Hi everyone ππ.Hope youβre having a nice weekend π.Today we are continuing our journey with the βintro to machine learningβ series.And of course, SVMs π.SVM or support vector machine is a machine learning algorithm whose job is to find a hyperplane that divides the data for the each label π.The power of SVMs comes through especially when the data is non linear or not easily distinguishable by eye!.SVMs use non linear kernels to transform the data to another space where the resulting data points are easily divisible by a hyperplane and then they transform everything including the hyperplane back to the initial dimensions.How cool is that with the right kernel, the SVM in the post was able to figure out the circular pattern of our data points? ππ.I personally think itβs absolutely amazing!!.Let me know what you think below.
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π¨βπ» #Machine_Learning
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π¨βπ» #Machine_Learning
What do you say we learn some machine learning today? ππ.Linear regression is typically one of the first machine learning algorithms we hear about when we start learning about ML in general.Disguised in a simple intuitive algorithm, there exists a series of foundational concepts in ML π€.To find a loss function whose minimization gives the problem the optimal result.To visualize that loss function and how to minimize it ππ.Did you know that companies such as Zillow and Redfin have used a flavor of Linear Regression to predict prices of homes?!! π±
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π¨βπ» #Machine_Learning
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π¨βπ» #Machine_Learning
Neural networks are at the center of attention for machine learning π.So itβs important to get introduced early on our journey π..π£
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π¨βπ» #Machine_Learning
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π¨βπ» #Machine_Learning