Introduction to Data Mining presents fundamental concepts and algorithms for those learning data mining for the first time. Each major topic is organized into two chapters, beginning with basic concepts that provide necessary background for understanding each data mining technique, followed by more advanced concepts and algorithms.

Foreword by Steven Pinker Blending the informed analysis of The Signal and the Noise with the instructive iconoclasm of Think Like a Freak, a fascinating, illuminating, and witty look at what the vast amounts of information now instantly available to us reveals about ourselves and our world—provided we ask the right questions. By the end of an average day in the early twenty-first century, human beings searching the internet will amass eight trillion gigabytes of data. This staggering amount of information—unprecedented in history—can tell us a great deal about who we are—the fears, desires, and behaviors that drive us, and the conscious and unconscious decisions we make. From the profound to the mundane, we can gain astonishing knowledge about the human psyche that less than twenty years ago, seemed unfathomable. Everybody Lies offers fascinating, surprising, and sometimes laugh-out-loud insights into everything from economics to ethics to sports to race to sex, gender and more, all drawn from the world of big data. What percentage of white voters didn’t vote for Barack Obama because he’s black? Does where you go to school effect how successful you are in life? Do parents secretly favor boy children over girls? Do violent films affect the crime rate? Can you beat the stock market? How regularly do we lie about our sex lives and who’s more self-conscious about sex, men or women? Investigating these questions and a host of others, Seth Stephens-Davidowitz offers revelations that can help us understand ourselves and our lives better. Drawing on studies and experiments on how we really live and think, he demonstrates in fascinating and often funny ways the extent to which all the world is indeed a lab. With conclusions ranging from strange-but-true to thought-provoking to disturbing, he explores the power of this digital truth serum and its deeper potential—revealing biases deeply embedded within us, information we can use to change our culture, and the questions we’re afraid to ask that might be essential to our health—both emotional and physical. All of us are touched by big data everyday, and its influence is multiplying. Everybody Lies challenges us to think differently about how we see it and the world.

Explains how to use SQL (Structured Query Language) - the programming language for databases. Readers will learn to create database objects, add and retrieve data from a database, and modify existing data. This book also covers Data Query Language (DQL), Data Manipulation Language(DML), Data Control Language (DCL), and performance tuning.

The New York Times op-ed columnist and former Google data scientist presents an insider's look at what today's vast, instantly available amounts of information can reveal about our world. 200,000 first printing.

A former computer hacker who turned his life around reveals how he now works as a computer security expert, protecting corporations from other hackers.

Whether you're canvassing a congressional district, managing a sales region, mapping city bus schedules, or analyzing local cancer rates, thinking spatially opens up limitless possibilities for database users. PostGIS, a freely available open-source spatial database extender, can help you answer questions that you could not answer using a mere relational database. Its feature set equals or surpasses proprietary alternatives, allowing you to create location-aware queries and features with just a few lines of SQL code. PostGIS in Action is the first book devoted entirely to PostGIS. It will help both new and experienced users write spatial queries to solve real-world problems. For those with experience in more traditional relational databases, this book provides a background in vector-based GIS so you can quickly move to analyzing, viewing, and mapping data. Advanced users will learn how to optimize queries for maximum speed, simplify geometries for greater efficiency, and create custom functions suited specifically to their applications. It also discusses the new features available in PostgreSQL 8.4 and provides tutorials on using additional open source GIS tools in conjunction with PostGIS. Purchase of the print book comes with an offer of a free PDF, ePub, and Kindle eBook from Manning. Also available is all code from the book.

Is the Brexit vote successful big data politics or the end of democracy? Why do airlines overbook, and why do banks get it wrong so often? How does big data enable Netflix to forecast a hit, CERN to find the Higgs boson and medics to discover if red wine really is good for you? And how are companies using big data to benefit from smart meters, use advertising that spies on you and develop the gig economy, where workers are managed by the whim of an algorithm?The volumes of data we now access can give unparalleled abilities to make predictions, respond to customer demand and solve problems. But Big Brother’s shadow hovers over it. Though big data can set us free and enhance our lives, it has the potential to create an underclass and a totalitarian state. With big data ever-present, you can’t afford to ignore it. Acclaimed science writer Brian Clegg - a habitual early adopter of new technology (and the owner of the second-ever copy of Windows in the UK) - brings big data to life.

A world-famous security expert explores the social side of security In this thought-provoking volume, the bestselling author of Secrets & Lies and Beyond Fear examines security's essential role in making society possible. Every society has a dishonest minority who breaks rules and doesn't follow group norms. They're not just the selfish; they include people with different morals. Security is how we protect ourselves from this dishonest minority within and what enables us to trust strangers at the local, national, and global scale. This engaging and highly readable book explains why security will always exist, and why we're all better off if it isn't perfect. It covers: - Our evolved security systems and their unique role in facilitating and stabilizing human society. - How our deliberately created security systems support modern, complex societies. - Where security is breaking down, as computer and communication systems replace existing social systems, and as technology gives that dishonest minority more power. - The value of the dishonest minority, and how it serves as a catalyst for social change. Bruce Schneier is a world-famous security technologist, regularly consulted by media, business, and governments. Like Schneier's other highly successful books, Liars and Outliers offers profound insights into the complex issue of security as well as a riveting reading experience.

Who Are The Cypherpunks? This is the unauthorized telling of the revolutionary cryptography story behind the motion picture The Fifth Estate in theatres this October, and a penetrating look at the facts presented in We Steal Secrets: The Story of Wikileaks, a documentary out now. WikiLeaks brought to light a new form of whistleblowing, using powerful cryptographic code to hide leakers’ identities while they spill the private data of government agencies and corporations. But that technology has been evolving for decades in the hands of hackers and radical activists, from the libertarian enclaves of Northern California to Berlin to the Balkans. And the secret-killing machine continues to evolve beyond WikiLeaks, as a movement of hacktivists aims to obliterate the world’s institutional secrecy. Forbes journalist Andy Greenberg has traced its shadowy history from the cryptography revolution of the 1970s to Wikileaks founding hacker Julian Assange, Anonymous, and beyond. This is the story of the code and the characters?idealists, anarchists, extremists?who are transforming the next generation’s notion of what activism can be. With unrivaled access to such major players as Julian Assange, Daniel Domscheit-Berg, and WikiLeaks’ shadowy engineer known as the Architect, never before interviewed, Greenberg unveils the world of politically-motivated hackers?who they are and how they operate.

Collects practical tips and real-world advice for tackling common Python problems and taking your code to the next level and features interviews with high-profile Python developers who share their tips, tricks, best practices, and real-world advice gleaned from years of experience. Original.