Monday, July 25, 2016

Gaussian Processes for Machine Learning - Carl Edward Rasmussen and Christopher K. I. Williams

              Ebook Size : 3.9 MB

              Download: Gaussian Processes for Machine Learning

Gaussian processes (GPs) provide a principled, practical, probabilistic approach to learning in kernel machines. GPs have received increased attention in the machine-learning community over the past decade, and this book provides a long-needed systematic and unified treatment of theoretical and practical aspects of GPs in machine learning. The treatment is comprehensive and self-contained, targeted at researchers and students in machine learning and applied statistics.

The book deals with the supervised-learning problem for both regression and classification, and includes detailed algorithms. A wide variety of covariance (kernel) functions are presented and their properties discussed. Model selection is discussed both from a Bayesian and a classical perspective. Many connections to other well-known techniques from machine learning and statistics are discussed, including support-vector machines, neural networks, splines, regularization networks, relevance vector machines and others. Theoretical issues including learning curves and the PAC-Bayesian framework are treated, and several approximation methods for learning with large datasets are discussed. The book contains illustrative examples and exercises, and code and datasets are available on the Web. Appendixes provide mathematical background and a discussion of Gaussian Markov processes.

Sunday, July 24, 2016

Coursera - The Ohio State University - Calculus One

File Size: 4.4 GB

1.) Download and Install Qbittorrent Software

Linux users just type: sudo apt-get install qbittorrent in your terminal.

2.) Download Coursera Calculus One Torrent

Calculus is about the very large, the very small, and how things change. The surprise is that something seemingly so abstract ends up explaining the real world. Calculus plays a starring role in the biological, physical, and social sciences. By focusing outside of the classroom, we will see examples of calculus appearing in daily life.

This course is a first and friendly introduction to calculus, suitable for someone who has never seen the subject before, or for someone who has seen some calculus but wants to review the concepts and practice applying those concepts to solve problems. One learns calculus by doing calculus, and so this course encourages you to participate by providing you with:

* instant feedback on practice problems
* interactive graphs and games for you to play
* calculus projects and demos you can try at home
* opportunities for you to explain your thought process

Saturday, July 23, 2016

Coursera - Pre-Calculus

File Size : 1.1 GB

1.) You need to Download and Install Qbittorrent Software to download these free video course.

Linux users just type : sudo apt-get install qbittorrent

 2.) Download Pre-Calculus Torrent

This Video course covers mathematical topics in algebra and trigonometry and is designed to prepare students to enroll for a first semester course in single variable calculus.

Through this course, students will acquire a solid foundation in algebra and trigonometry. The course concentrates on the various functions that are important to the study of the calculus. Emphasis is placed on understanding the properties of linear, polynomial, piecewise, exponential, logarithmic and trigonometric functions. Students will learn to work with various types of functions in symbolic, graphical, numerical and verbal form.

Below you will find the weekly topic schedule.

  • Week One: Algebra Review. Linear Equations. Linear Inequalities. Absolute Value in Equations and Inequalities.

  • Week Two: Quadratic Equations. Absolute Values. Rational and Radical Equations.

  • Week Three: Functions. Transformations of Graphs.

  • Week Four: Inverse Functions. Polynomials.

  • Week Five: Exponential and Logarithmic Equations.

  • Week Six: Angles and their Measure. Trigonometric Functions. Unit Circle.
          Solving Right Triangles.

  • Week Seven: Properties of Trigonometric Functions. Inverse Trigonometric Functions.

  • Week Eight: Trigonometric Identities: Sum, Difference, Double-Angle and Half-Angle Identities.

  • Week Nine: Trigonometric Equations. Law of Sines. Law of Cosines

  • Week Ten: Review and Final Exam.

Friday, May 20, 2016

Introduction to Computer Graphics - David J. Eck

                Ebook Size : 4.8 MB

                Download : Introduction to Computer Graphics

The term “computer graphics” refers to anything involved in the creation or manipulation of images on computer, including animated images. It is a very broad field, and one in which changes and advances seem to come at a dizzying pace. It can be difficult for a beginner to know where to start. However, there is a core of fundamental ideas that are part of the foundation of most applications of computer graphics. This book attempts to cover those foundational ideas, or at least as many of them as will fit into a one-semester college-level course.
While it is not possible to cover the entire field in a first course—or even a large part of it—this should be a good place to start.
T he main focus of this book is three-dimensional (3D) graphics, where most of the work goes into producing a 3D model of a scene. But ultimately, in almost all cases, the end result of a computer graphics project is a two-dimensional image. And of course, the direct production and manipulation of 2D images is an important topic in its own right. Furthermore, a lot of ideas carry over from two dimensions to three. So, it makes sense to start with graphics in 2D. An image that is presented on the computer screen is made up of pixels. The screen consists of a rectangular grid of pixels, arranged in rows and columns.

The pixels are small enough that they are not easy to see individually. In fact, for many very high resolution displays, they become essentially invisible. At a given time, each pixel can show only one color. Most screens these days use 24-bit color, where a color can be specified by three 8-bit numbers, giving the levels of red, green, and blue in the color. Any color that can be shown on the screen is made up of some combination of these three “primary” colors. Other formats are possible, such as grayscale, where each pixel is some shade of gray and the pixel color is given by one number that specifies the level of gray on a black-to-white scale. Typically, 256 shades of gray are used. Early computer screens used indexed color , where only a small set of colors, usually 16 or 256, could be displayed. For an indexed color display, there is a numbered list of possible colors, and the color of a pixel is specified by an integer giving the position of the color in the list.

Wednesday, May 18, 2016

Sex at Dawn: The Prehistoric Origins of Modern Sexuality

                       Ebook Size :  2.7 MB

                       Download : Sex at Dawn by Christopher Ryan & Cacilda Jethá


We’ll show that human beings evolved in intimate groups where almost everything was shared— food, shelter, protection, child care, even sexual pleasure. We don’t argue that humans are natural born Marxist hippies. Nor do we hold that romantic love was unknown or unimportant in prehistoric communities. But we’ll demonstrate that contemporary culture misrepresents the link between love and sex. With and without love, a casual sexuality was the norm for our prehistoric ancestors.

Deep conflicts rage at the heart of modern sexuality. Our cultivated ignorance is devastating. The campaign to obscure the true nature of our species’ sexuality leaves half our marriages collapsing under an unstoppable tide of swirling sexual frustration, libido-killing boredom, impulsive betrayal, dysfunction, confusion, and shame. Serial monogamy stretches before (and behind) many of us like an archipelago of failure: isolated islands of transitory happiness in a cold, dark sea of disappointment. And how many of the couples who manage to stay together for the long haul have done so by resigning themselves to sacrificing their eroticism on the altar of three of life’s irreplaceable joys: family stability, companionship, and emotional, if not sexual, intimacy? Are those who innocently aspire to these joys cursed by nature to preside over the slow strangulation of their partner’s libido?

Forget what you’ve heard about human beings having descended from the apes. We didn’t descend from apes. We are apes. Metaphorically and factually, Homo sapiens is one of the five surviving species of great apes, along with chimpanzees, bonobos, gorillas, and orangutans (gibbons are considered a “lesser ape”). We shared a common ancestor with two of these apes—bonobos and chimps—just five million years ago. That’s “the day before yesterday” in evolutionary terms. The fine print distinguishing humans from the other great apes is regarded as “wholly artificial” by most primatologists these days.

Several types of evidence suggest our pre-agricultural (prehistoric) ancestors lived in groups where most mature individuals would have had several ongoing sexual relationships at any given time. Though often casual, these relationships were not random or meaningless. Quite the opposite: they reinforced crucial social ties holding these highly interdependent communities together.

Human beings and our hominid ancestors have spent almost all of the past few million years or so in small, intimate bands in which most adults had several sexual relationships at any given time. This approach to sexuality probably persisted until the rise of agriculture and private property no more than ten thousand years ago. In addition to voluminous scientific evidence, many explorers, missionaries, and anthropologists support this view, having penned accounts rich with tales of orgiastic rituals, unflinching mate sharing, and an open sexuality unencumbered by guilt or shame.

If you spend time with the primates closest to human beings, you’ll see female chimps having intercourse dozens of times per day, with most or all of the willing males, and rampant bonobo group sex that leaves everyone relaxed and maintains intricate social networks. Explore contemporary human beings’ lust for particular kinds of pornography or our notorious difficulties with long-term sexual monogamy and you’ll soon stumble over relics of our hypersexual ancestors.

Monday, May 16, 2016

COSMOS - Carl Sagan

                          Ebook Size : 1.1 MB

                          Download : COSMOS - Carl Sagan

The Cosmos is all that is or ever was or ever will be. Our feeblest contemplations of the Cosmos stir us - there is a tingling in the spine, a catch in the voice, a faint sensation, as if a distant memory, of falling from a height. We know we are approaching the greatest of mysteries.

The size and age of the Cosmos are beyond ordinary human understanding. Lost somewhere between immensity and eternity is our tiny planetary home. In a cosmic perspective, most human concerns seem insignificant, even petty. And yet our species is young and curious and brave and shows much promise. In the last few millennia we have made the most astonishing and unexpected discoveries about the Cosmos and our place within it, explorations that are exhilarating to consider. They remind us that humans have evolved to wonder, that understanding is a joy, that knowledge is prerequisite to survival. I believe our future depends on how well we know this Cosmos in which we float like a mote of dust in the morning sky.

Those explorations required skepticism and imagination both. Imagination will often carry us to worlds that never were. But without it, we go nowhere. Skepticism enables us to distinguish fancy from fact, to test our speculations. The Cosmos is rich beyond measure - in elegant facts, in exquisite interrelationships, in the subtle machinery of awe.
In the summer and fall of 1976, as a member of the Viking Lander Imaging Flight Team, I was engaged, with a hundred of my scientific colleagues, in the exploration of the planet Mars. For the first time in human history we had landed two space vehicles on the surface of another world. The results, described more fully in Chapter 5, were spectacular, the historical significance of the mission utterly apparent. And yet the general public was learning almost nothing of these great happenings. The press was largely inattentive; television ignored the mission almost altogether.

When it became clear that a definitive answer on whether there is life on Mars would not be forthcoming, interest dwindled still further. There was little tolerance for ambiguity. When we found the sky of Mars to be a kind of pinkish-yellow rather than the blue which had erroneously first been reported, the announcement was greeted by a chorus of good-natured boos from the assembled reporters - they wanted Mars to be, even in this respect, like the Earth. They believed that their audiences would be progressively disinterested as Mars was revealed to be less and less like the Earth. And yet the Martian landscapes are staggering, the vistas breathtaking. I was positive from my own experience that an enormous global interest exists in the exploration of the planets and in many kindred scientific topics - the origin of life, the Earth, and the Cosmos, the search for extraterrestrial intelligence, our connection with the universe. And I was certain that this interest could be excited through that most powerful communications medium, television.