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Every organisation needs to do something with data to remain competitive. You can hire the most technically competent team, pay for all the top technology, build the most sophisticated algorithms, and yet still fail to see value from data. This book introduces the leadership keys to enable you to meet your strategic objectives.
Over the centuries people have created codes they hoped others would never crack - now computers can do this. This revealing guide gives you the key to unlock the secret languages of spies. Get on the case to discover how to decipher dots and dashes, fathom flags, and suss a simple cipher.
Cracking the Data Science Interview is the first book that attempts to capture the essence of data science in a concise, compact, and clean manner. In a Cracking the Coding Interview style, Cracking the Data Science Interview first introduces the relevant concepts, then presents a series of interview questions to help you solidify your understanding and prepare you for your next interview. Topics include: - Necessary Prerequisites (statistics, probability, linear algebra, and computer science) - 18 Big Ideas in Data Science (such as Occam's Razor, Overfitting, Bias/Variance Tradeoff, Cloud Computing, and Curse of Dimensionality) - Data Wrangling (exploratory data analysis, feature engineering, data cleaning and visualization) - Machine Learning Models (such as k-NN, random forests, boosting, neural networks, k-means clustering, PCA, and more) - Reinforcement Learning (Q-Learning and Deep Q-Learning) - Non-Machine Learning Tools (graph theory, ARIMA, linear programming) - Case Studies (a look at what data science means at companies like Amazon and Uber) Maverick holds a bachelor's degree from the College of Engineering at Cornell University in operations research and information engineering (ORIE) and a minor in computer science. He is the author of the popular Data Science Cheatsheet and Data Engineering Cheatsheet on GCP and has previous experience in data science consulting for a Fortune 500 company focusing on fraud analytics.
Now in the 5th edition, Cracking the Coding Interview gives you the interview preparation you need to get the top software developer jobs. This book provides: 150 Programming Interview Questions and Solutions: From binary trees to binary search, this list of 150 questions includes the most common and most useful questions in data structures, algorithms, and knowledge based questions. 5 Algorithm Approaches: Stop being blind-sided by tough algorithm questions, and learn these five approaches to tackle the trickiest problems. Behind the Scenes of the interview processes at Google, Amazon, Microsoft, Facebook, Yahoo, and Apple: Learn what really goes on during your interview day and how decisions get made. Ten Mistakes Candidates Make -- And How to Avoid Them: Don't lose your dream job by making these common mistakes. Learn what many candidates do wrong, and how to avoid these issues. Steps to Prepare for Behavioral and Technical Questions: Stop meandering through an endless set of questions, while missing some of the most important preparation techniques. Follow these steps to more thoroughly prepare in less time.
A detailed history and analysis of the actual statutes behind the Internal Revenue Code revealing the surprisingly limited reach of the American income tax.
How often have you chased the Code to Success? If you are like most people, you have tried Cracking the Code to Success before. From observation, you may also have noted that there is no specific roadmap that guarantees success. We are all endowed with different personalities and come from any number of different backgrounds, so we approach different tasks in our own individual ways. Everyone has experienced some measure of success in life. To move up to a higher level, whether it is for recognition, financial reasons, or some other definition of success that you choose, there are many qualities of successful people by which you can be guided. While we often hate to ask for help, mentoring is one of the key ingredients to help you crack the code to success much faster than you could on your own. The Celebrity Experts in this book are happy to mentor you with their expertise based on their proven experiences and core principles. They have "been there and done that." Mentors will help you avoid the ruts and potholes and save you "oceans of time" while you are trying to get onto the highway of success. In addition to mentoring, you will need specific knowledge, clarity of goals, perseverance and passion to get you past the "no's" and naysayers, as well as an action plan and a willingness to help others along the way. To Your Success! Achievement seems to be connected with action. Successful men and women keep moving. They make mistakes, but they don't quit. Conrad Hilton
Learn how to program in Python while making and breaking ciphers—algorithms used to create and send secret messages! After a crash course in Python programming basics, you’ll learn to make, test, and hack programs that encrypt text with classical ciphers like the transposition cipher and Vigenère cipher. You’ll begin with simple programs for the reverse and Caesar ciphers and then work your way up to public key cryptography, the type of encryption used to secure today’s online transactions, including digital signatures, email, and Bitcoin. Each program includes the full code and a line-by-line explanation of how things work. By the end of the book, you’ll have learned how to code in Python and you’ll have the clever programs to prove it! You’ll also learn how to: - Combine loops, variables, and flow control statements into real working programs - Use dictionary files to instantly detect whether decrypted messages are valid English or gibberish - Create test programs to make sure that your code encrypts and decrypts correctly - Code (and hack!) a working example of the affine cipher, which uses modular arithmetic to encrypt a message - Break ciphers with techniques such as brute-force and frequency analysis There’s no better way to learn to code than to play with real programs. Cracking Codes with Python makes the learning fun!
