19777–19792 di 65579 risultati

Defy the Worlds

**From bestselling author Claudia Gray comes the heart-pounding sequel to *Defy the Stars*, perfect for fans of The Lunar Chronicles and *Illuminae.***
She’s an outcast from her home — shunned after a trip through the galaxy with Abel, the most advanced cybernetic man ever created, Noemi Vidal dreams of traveling through the stars one more time. And when a deadly plague arrives on Genesis, Noemi gets her chance. As the only soldier to have ever left the planet, it will be up to her to save its people…if only she wasn’t flying straight into a trap.
He’s a fugitive from his fate — on the run to avoid his depraved creator’s clutches, Abel believes he’s said good-bye to Noemi for the last time. After all, the entire universe stands between them…or so he thinks. When word reaches him of Noemi’s capture by the very person he’s trying to escape, his depraved creator Burton Mansfield, Abel knows he must go to her, no matter the cost.
But capturing Noemi was only part of Mansfield’s master plan. In a race against time, Abel and Noemi will come together once more to discover a secret that could save the known worlds, or destroy them all.
In this thrilling and romantic sequel to *Defy the Stars*, bestselling author Claudia Gray asks us all to consider where–and with whom–we truly belong.

Definitely dead

Definitely Dead (Sookie Stackhouse / Southern Vampire Series #6) by Charlaine Harris
As a person with so few living relatives, Louisiana cocktail waitress Sookie Stackhouse really hated to lose one. But she never guessed that it would be her cousin Hadley—a consort of the Vampire Queen of New Orleans. After all, technically speaking, Hadley was already dead. And now, as unexpected heir to Hadley’s estate, Sookie discovers the inheritance definitely comes with a risk.
Someone doesn’t want Sookie looking too deeply into Hadley’s past—or for that matter, Hadley’s possessions. And they’re prepared to do anything in their power to stop her. But who? The range of suspects runs from the Rogue Weres who reject Sookie as a friend of the Pack to the Vampire Queen herself, who could be working through a particularly vulnerable subject—Sookie’s first love, Bill.
Whoever it is, they’re definitely dangerous—and Sookie’s life is definitely on the line…
With HBO’s launching of an all-new show, *True Blood*, based on the Southern Vampire novels, the demand for Charlaine Harris and Sookie Stackhouse is bigger than ever.
**Watch a QuickTime trailer for the HBO original series *True Blood.***

The Defiant Agents

**A battle for survival begins and ends in the human mind in the thrilling novel from the Time Traders series.**
The latest gambit by the Western powers to outmaneuver the Russians was Operation Cochise—which launched Travis Fox and his crew on a ship bound for the planet Topaz. At least that’s what Fox thinks . . .

All he knows for sure is that something went wrong and they crash landed. Everything else is a fog of warped memories. When they come across a band of Russians who have also had their memories obliterated, Fox begins to suspect they are all pawns in a much larger game. And his speculations are right.

Someone is manipulating them. Observing them. And if Fox and his newfound allies cannot find a way to break free from their mental bonds, their captors may never be stopped.
*The Defiant Agents is the third book in the Time Traders Series, but you may enjoy reading the series in any order.*


The fog of war clouds everything. Enemies lurk in the shadows, within the very fleet sworn to protect United Earth. Conspiracies and murder abound, and in the background…. The stalled alien invasion lurks.
The Golgothic ship has burrowed deep into the core of Saturn’s moon Titan, whose mass slowly but inexorably increases. The Dolmasi, once allies of United Earth in the Second Swarm War, now attack us, unhinged and without reason. And all the while, Admiral Shelby Proctor works to answer the most urgent questions of all: what was a piece of the old ISS Victory doing inside the Golgothic ship? And was it Captain Tim Granger’s voice that whispered from the doomed ship, “*Shelby, they’re coming*?”
And …are *they* the Swarm? If they are, God help us all.


It has been over two centuries since the starship *Phoenix* disappeared into space, leaving an isolated colony of humans to fend for themselves on the world of the alien *atevi*. Two centuries during which humanity fought a devastating war with these volatile aliens, nearly facing planetary extinction before devising an interface which allowed these two so-different sentient races to coexist in peace.
Since that time, humans have lived in exile on the island of Mospheira, using a single diplomat, the *paidhi*, to trade bits of advanced technology for the continued peace and safety of their people.
But the unexpected return of the *Phoenix* has shattered forever the fragile, carefully maintained political balance of these two nearly incompatible races. For the captains of the *Phoenix* offer the *atevi* something the Mospheiran humans never could – access to the stars.
But the captains of the *Phoenix* do not offer this incalculable treasure for free. In return they ask for *atevi* manpower and supplies to rebuild their long-derelict space station and refuel and rearm their aging starship.
Guided by technological designs provided by *Phoenix*’s Pilots’ Guild, the *atevi* now have three functioning space shuttles, and teams of *atevi* engineers labor in orbit to renovate the space Station and build a new starship – one designed to *atevi* specifications.
But these monumental advances have not come easily to the tradition-bound *atevi*, for they not only add a dangerously powerful third party to an already fragile diplomatic situation, but rouse pro- and anti-space factions in *atevi* society to near-incendiary levels. To help negotiate these treacherous diplomatic waters, Tabini-aiji, the powerful head of the *atevi*’s Western Association, has sent the only human he fully trusts into space: his own *paidhi*, Bren Cameron.
A brilliant and wily negotiator, Cameron has severed his alliance with Mospheira, the land of his birth, and now exclusively represents Tabini’s interests in space. Far surpassing the accomplishments of his predecessors, Bren is the first human who has been truly accepted into *atevi* society. Privy to the most intimate decisions of Tabini’s household, Bren is acutely aware of how dangerous, yet how easy it is for a human to assume familiar emotions and drives where only alien motivations exist.
Bren, now residing on the station, is empowered to use any means at his disposal to achieve the aiji’s aim – the representation of *atevi* interests – but his job is not easy. For Cameron cannot be completely sure that either human faction is telling him the truth. And the threat of possible invasion by the hostile aliens who destroyed *Phoenix*’s Station in a far-off sector of space hangs over them all.
But when, with his dying breath, one of the senior captains of the *Phoenix* admits to treachery against his own crew, it threatens to rip apart every enterprise in space. For when *Phoenix* fled that alien attack, the crew had been told that there were no human survivors – that they left a deserted and ruined station behind. But that was not true. The station was only partly destroyed, and there were survivors – friends and family of the *Phoenix*’s crew-who may or may not still be alive.
How can Bren hope to mediate on the aiji’s behalf on a station overcome by a mutinous rebellion which threatens to take the *Phoenix* and all its crew on a mission back into hostile alien territory?

Defend and Betray

EDITORIAL REVIEW: After a brilliant military career, esteemed General Thaddeus Carlyon finally meets his death, not in the frenzy of battle but at an elegant London dinner party. His demise appears to be the result of a freak accident, but the general’s beautiful wife, Alexandra, readily confesses that she killed him–a story she clings to even under the threat of the noose.Investigator William Monk, nurse Hester Latterly, and brilliant Oliver Rathbone, counsel for the defense, work feverishly to break down the wall of silence raised by the accused and her husband’s proud family. With the trial only days away, these there sleuths inch toward the dark and appalling heart of the mystery.

A Deeper Love

It is only three years since Tessa Gray lost her beloved husband William Herondale, and she is searching for a reason to live, trying to find the path of being a warlock with the guidance of her friend Catarina Loss. World War 2 rains down destruction on their world, and Tessa and Catarina become nurses who make bargains at the Shadow Market for enchantments to help suffering mundanes. But can Brother Zachariah bear to see the woman he loves risk her life, or might he consider breaking sacred vows to save her from loneliness?Praise for the The Mortal Instruments/The Infernal Devices Series:Teen Choice Book of the Year FinalistChildren’s Choice Book Awards“Compelling and believable…it may be Clare’s best undertaking to date.”— Entertainment Weekly“A must-read.”— BooklistCassandra Clare was born to American parents in Teheran, Iran and spent much of her childhood traveling the world with her family. She lived in France, England and Switzerland before she was ten years old. Since her family moved around so much she found familiarity in books and went everywhere with a book under her arm. She spent her high school years in Los Angeles where she used to write stories to amuse her classmates, including an epic novel called “The Beautiful Cassandra” based on the eponymous Jane Austen short story (and from which she later took her current pen name).After college, Cassie lived in Los Angeles and New York where she worked at various entertainment magazines and even some rather suspect tabloids. She started working on her YA novel, City of Bones, in 2004, inspired by the urban landscape of Manhattan, her favorite city.In 2007, the first book in the Mortal Instruments series, City of Bones, introduced the world to Shadowhunters. The Mortal Instruments concluded in 2014, and includes City of Ashes, City of Glass, City of Fallen Angels, City of Lost Souls, and City of Heavenly Fire. She also created a prequel series, inspired by A Tale of Two Cities and set in Victorian London. This series, The Infernal Devices, follows bookworm Tessa Gray as she discovers the London Institute in Clockwork Angel, Clockwork Prince, and Clockwork Princess.The sequel series to The Mortal Instruments, The Dark Artifices, where the Shadowhunters take on Los Angeles, began with Lady Midnight, continues with Lord of Shadows and will conclude with Queen of Air and Darkness.Other books in the Shadowhunters series include The Bane Chronicles, Tales from the Shadowhunter Academy, and The Shadowhunter’s Codex.Her books have more than 36 million copies in print worldwide and have been translated into more than thirty-five languages. Visit her at cassandraclare.com.Maureen Johnson is the New York Times and USA Today bestselling author of several YA novels, including 13 Little Blue Envelopes, Suite Scarlett, The Name of the Star, and Truly Devious. She has also done collaborative works, such as Let It Snow (with John Green and Lauren Myracle), and The Bane Chronicles (with Cassandra Clare and Sarah Rees Brennan). Maureen has an MFA in Writing from Columbia University. She has been nominated for an Edgar Award and the Andre Norton Award, and her books appear frequently on YALSA and state awards lists. Time Magazine has named her one of the top 140 people to follow on Twitter (@maureenjohnson). Her work has appeared in publications such as the New York Times, Buzzfeed, and The Guardian, and she has also served as a scriptwriter for EA Games. She has an MFA in Writing from Columbia University and lives in New York City.

Deep State: A Nathaniel Cade Story

It’s been four years since a new president ascended to the White House. Zach Barrows has not seen Nathaniel Cade, the President’s Vampire, since being fired from his position as Cade’s handler and sent to a small, cramped office in a government building in Nebraska.

Once, he and Cade fought a shadow war against the monsters, spies, and demons that threatened the United States. Now Zach pushes papers and listens to conspiracy theories from people who have no idea how dark the real world can get.

Then Zach is summoned to the Situation Room by President Lester Wyman, who is both the commander-in-chief and a possible traitor.

But he and Cade are bound to follow Wyman’s orders. They are told to find out why a top-secret missile silo has gone offline. If they fail, a nuclear warhead will launch, and the world will die in a hail of fire.

In other words, it’s just another night on the job.

After a long absence, Cade and Zach are back in action together — for what might be the last time.
(source: Bol.com)

Deep Six

SUMMARY: A ghost ship drifts across the northern Pacific….A Soviet luxury liner burns like a funeral pyre….And the U.S. President’s yacht is heading for disaster….Somewhere off the coast of Alaska, a sunken cargo poses a threat of unthinkable proportions. Potentially, the lost shipment of chemicals could destroy all life in the ocean — and perhaps the world — unless DIRK PITT® can find it first. But time is running out for the NUMA agent and his team. Pitt’s main target is just one deadly component of a vast international conspiracy fueled by hijacking, bribery, and murder. And at the center of it all is a powerful Korean shipping empire with a chilling political agenda — to kidnap the President of the United States….

Deep Reinforcement Learning Hands-On

Deep Reinforcement Learning Hands-On by Maxim Lapan
**This practical guide will teach you how deep learning (DL) can be used to solve complex real-world problems. **
#### Key Features
* Explore deep reinforcement learning (RL), from the first principles to the latest algorithms
* Evaluate high-profile RL methods, including value iteration, deep Q-networks, policy gradients, TRPO, PPO, DDPG, D4PG, evolution strategies and genetic algorithms
* Keep up with the very latest industry developments, including AI-driven chatbots
#### Book Description
Recent developments in reinforcement learning (RL), combined with deep learning (DL), have seen unprecedented progress made towards training agents to solve complex problems in a human-like way. Google’s use of algorithms to play and defeat the well-known Atari arcade games has propelled the field to prominence, and researchers are generating new ideas at a rapid pace.
Deep Reinforcement Learning Hands-On is a comprehensive guide to the very latest DL tools and their limitations. You will evaluate methods including Cross-entropy and policy gradients, before applying them to real-world environments. Take on both the Atari set of virtual games and family favorites such as Connect4. The book provides an introduction to the basics of RL, giving you the know-how to code intelligent learning agents to take on a formidable array of practical tasks. Discover how to implement Q-learning on ‘grid world’ environments, teach your agent to buy and trade stocks, and find out how natural language models are driving the boom in chatbots.
#### What you will learn
* Understand the DL context of RL and implement complex DL models
* Learn the foundation of RL: Markov decision processes
* Evaluate RL methods including Cross-entropy, DQN, Actor-Critic, TRPO, PPO, DDPG, D4PG and others
* Discover how to deal with discrete and continuous action spaces in various environments
* Defeat Atari arcade games using the value iteration method
* Create your own OpenAI Gym environment to train a stock trading agent
* Teach your agent to play Connect4 using AlphaGo Zero
* Explore the very latest deep RL research on topics including AI-driven chatbots
#### Who this book is for
Some fluency in Python is assumed. Basic deep learning (DL) approaches should be familiar to readers and some practical experience in DL will be helpful. This book is an introduction to deep reinforcement learning (RL) and requires no background in RL.

Deep Learning with TensorFlow: Explore neural networks with Python

Delve into neural networks, implement deep learning algorithms, and explore layers of data abstraction with the help of this comprehensive TensorFlow guide About This Book * Learn how to implement advanced techniques in deep learning with Google’s brainchild, TensorFlow * Explore deep neural networks and layers of data abstraction with the help of this comprehensive guide * Real-world contextualization through some deep learning problems concerning research and application Who This Book Is For The book is intended for a general audience of people interested in machine learning and machine intelligence. A rudimentary level of programming in one language is assumed, as is a basic familiarity with computer science techniques and technologies, including a basic awareness of computer hardware and algorithms. Some competence in mathematics is needed to the level of elementary linear algebra and calculus. What You Will Learn * Learn about machine learning landscapes along with the historical development and progress of deep learning * Learn about deep machine intelligence and GPU computing with the latest TensorFlow 1.x * Access public datasets and utilize them using TensorFlow to load, process, and transform data * Use TensorFlow on real-world datasets, including images, text, and more * Learn how to evaluate the performance of your deep learning models * Using deep learning for scalable object detection and mobile computing * Train machines quickly to learn from data by exploring reinforcement learning techniques * Explore active areas of deep learning research and applications In Detail Deep learning is the step that comes after machine learning, and has more advanced implementations. Machine learning is not just for academics anymore, but is becoming a mainstream practice through wide adoption, and deep learning has taken the front seat. As a data scientist, if you want to explore data abstraction layers, this book will be your guide. This book shows how this can be exploited in the real world with complex raw data using TensorFlow 1.x. Throughout the book, you’ll learn how to implement deep learning algorithms for machine learning systems and integrate them into your product offerings, including search, image recognition, and language processing. Additionally, you’ll learn how to analyze and improve the performance of deep learning models. This can be done by comparing algorithms against benchmarks, along with machine intelligence, to learn from the information and determine ideal behaviors within a specific context. After finishing the book, you will be familiar with machine learning techniques, in particular the use of TensorFlow for deep learning, and will be ready to apply your knowledge to research or commercial projects. Style and approach This step-by-step guide will explore common, and not so common, deep neural networks and show how these can be exploited in the real world with complex raw data. With the help of practical examples, you will learn how to implement different types of neural nets to build smart applications related to text, speech, and image data processing.

Deep Learning With TensorFlow – Second Edition

Deep Learning with TensorFlow – Second Edition by Giancarlo Zaccone, Md. Rezaul Karim
**Delve into neural networks, implement deep learning algorithms, and explore layers of data abstraction with the help of TensorFlow.**
#### Key Features
* Learn how to implement advanced techniques in deep learning with Google’s brainchild, TensorFlow
* Explore deep neural networks and layers of data abstraction with the help of this comprehensive guide
* Gain real-world contextualization through some deep learning problems concerning research and application
#### Book Description
Deep learning is a branch of machine learning algorithms based on learning multiple levels of abstraction. Neural networks, which are at the core of deep learning, are being used in predictive analytics, computer vision, natural language processing, time series forecasting, and to perform a myriad of other complex tasks.
This book is conceived for developers, data analysts, machine learning practitioners and deep learning enthusiasts who want to build powerful, robust, and accurate predictive models with the power of TensorFlow, combined with other open source Python libraries.
Throughout the book, you’ll learn how to develop deep learning applications for machine learning systems using Feedforward Neural Networks, Convolutional Neural Networks, Recurrent Neural Networks, Autoencoders, and Factorization Machines. Discover how to attain deep learning programming on GPU in a distributed way.
You’ll come away with an in-depth knowledge of machine learning techniques and the skills to apply them to real-world projects.
#### What you will learn
* Apply deep machine intelligence and GPU computing with TensorFlow
* Access public datasets and use TensorFlow to load, process, and transform the data
* Discover how to use the high-level TensorFlow API to build more powerful applications
* Use deep learning for scalable object detection and mobile computing
* Train machines quickly to learn from data by exploring reinforcement learning techniques
* Explore active areas of deep learning research and applications
#### Who this book is for
The book is for people interested in machine learning and machine intelligence. A rudimentary level of programming in one language is assumed, as is a basic familiarity with computer science techniques and technologies, including a basic awareness of computer hardware and algorithms. Some competence in mathematics is needed to the level of elementary linear algebra and calculus.

Deep Learning with PyTorch

Build neural network models in text, vision and advanced analytics using PyTorch Key Features Learn PyTorch for implementing cutting-edge deep learning algorithms. Train your neural networks for higher speed and flexibility and learn how to implement them in various scenarios; Cover various advanced neural network architecture such as ResNet, Inception, DenseNet and more with practical examples; Book DescriptionDeep learning powers the most intelligent systems in the world, such as Google Voice, Siri, and Alexa. Advancements in powerful hardware, such as GPUs, software frameworks such as PyTorch, Keras, Tensorflow, and CNTK along with the availability of big data have made it easier to implement solutions to problems in the areas of text, vision, and advanced analytics. This book will get you up and running with one of the most cutting-edge deep learning libraries-PyTorch. PyTorch is grabbing the attention of deep learning researchers and data science professionals due to its accessibility, efficiency and being more native to Python way of development. You’ll start off by installing PyTorch, then quickly move on to learn various fundamental blocks that power modern deep learning. You will also learn how to use CNN, RNN, LSTM and other networks to solve real-world problems. This book explains the concepts of various state-of-the-art deep learning architectures, such as ResNet, DenseNet, Inception, and Seq2Seq, without diving deep into the math behind them. You will also learn about GPU computing during the course of the book. You will see how to train a model with PyTorch and dive into complex neural networks such as generative networks for producing text and images. By the end of the book, you’ll be able to implement deep learning applications in PyTorch with ease. What you will learn Use PyTorch for GPU-accelerated tensor computations Build custom datasets and data loaders for images and test the models using torchvision and torchtext Build an image classifier by implementing CNN architectures using PyTorch Build systems that do text classification and language modeling using RNN, LSTM, and GRU Learn advanced CNN architectures such as ResNet, Inception, Densenet, and learn how to use them for transfer learning Learn how to mix multiple models for a powerful ensemble model Generate new images using GAN’s and generate artistic images using style transfer Who this book is forThis book is for machine learning engineers, data analysts, data scientists interested in deep learning and are looking to explore implementing advanced algorithms in PyTorch. Some knowledge of machine learning is helpful but not a mandatory need. Working knowledge of Python programming is expected.
(source: Bol.com)

Deep Learning With Python

Discover the practical aspects of implementing deep-learning solutions using the rich Python ecosystem. This book bridges the gap between the academic state-of-the-art and the industry state-of-the-practice by introducing you to deep learning frameworks such as Keras, Theano, and Caffe. The practicalities of these frameworks is often acquired by practitioners by reading source code, manuals, and posting questions on community forums, which tends to be a slow and a painful process. *Deep Learning with Python *allows you to ramp up to such practical know-how in a short period of time and focus more on the domain, models, and algorithms.
This book briefly covers the mathematical prerequisites and fundamentals of deep learning, making this book a good starting point for software developers who want to get started in deep learning. A brief survey of deep learning architectures is also included.
*Deep Learning with Python* also introduces you to key concepts of automatic differentiation and GPU computation which, while not central to deep learning, are critical when it comes to conducting large scale experiments. 
**What You Will Learn ** Leverage deep learning frameworks in Python namely, Keras, Theano, and Caffe 
Gain the fundamentals of deep learning with mathematical prerequisites 
Discover the practical considerations of large scale experiments 
Take deep learning models to production
**Who This Book Is For**
Software developers who want to try out deep learning as a practical solution to a particular problem. Software developers in a data science team who want to take deep learning models developed by data scientists to production.

Deep Learning with Applications Using Python

Deep Learning with Applications Using Python: Chatbots and Face, Object, and Speech Recognition With TensorFlow and Keras by Navin Kumar Manaswi
Explore deep learning applications, such as computer vision, speech recognition, and chatbots, using frameworks such as TensorFlow and Keras. This book helps you to ramp up your practical know-how in a short period of time and focuses you on the domain, models, and algorithms required for deep learning applications. *Deep Learning with Applications Using Python* covers topics such as chatbots, natural language processing, and face and object recognition. The goal is to equip you with the concepts, techniques, and algorithm implementations needed to create programs capable of performing deep learning.
This book covers convolutional neural networks, recurrent neural networks, and multilayer perceptrons. It also discusses popular APIs such as IBM Watson, Microsoft Azure, and scikit-learn.
**What You Will Learn **
* Work with various deep learning frameworks such as TensorFlow, Keras, and scikit-learn.
* Use face recognition and face detection capabilities
* Create speech-to-text and text-to-speech functionality
* Engage with chatbots using deep learning
**Who This Book Is For**
Data scientists and developers who want to adapt and build deep learning applications.

Deep Learning Quick Reference

Deep Learning Quick Reference by Mike Bernico
**Dive deeper into neural networks and get your models trained, optimized with this quick reference guide**
#### Key Features
* A quick reference to all important deep learning concepts and their implementations
* Essential tips, tricks, and hacks to train a variety of deep learning models such as CNNs, RNNs, LSTMs, and more
* Supplemented with essential mathematics and theory, every chapter provides best practices and safe choices for training and fine-tuning your models in Keras and Tensorflow.
#### Book Description
Deep learning has become an essential necessity to enter the world of artificial intelligence. With this book deep learning techniques will become more accessible, practical, and relevant to practicing data scientists. It moves deep learning from academia to the real world through practical examples.
You will learn how Tensor Board is used to monitor the training of deep neural networks and solve binary classification problems using deep learning. Readers will then learn to optimize hyperparameters in their deep learning models. The book then takes the readers through the practical implementation of training CNN’s, RNN’s, and LSTM’s with word embeddings and seq2seq models from scratch. Later the book explores advanced topics such as Deep Q Network to solve an autonomous agent problem and how to use two adversarial networks to generate artificial images that appear real. For implementation purposes, we look at popular Python-based deep learning frameworks such as Keras and Tensorflow, Each chapter provides best practices and safe choices to help readers make the right decision while training deep neural networks.
By the end of this book, you will be able to solve real-world problems quickly with deep neural networks.
#### What you will learn
* Solve regression and classification challenges with TensorFlow and Keras
* Learn to use Tensor Board for monitoring neural networks and its training
* Optimize hyperparameters and safe choices/best practices
* Build CNN’s, RNN’s, and LSTM’s and using word embedding from scratch
* Build and train seq2seq models for machine translation and chat applications.
* Understanding Deep Q networks and how to use one to solve an autonomous agent problem.
* Explore Deep Q Network and address autonomous agent challenges.
#### Who this book is for
If you are a Data Scientist or a Machine Learning expert, then this book is a very useful read in training your advanced machine learning and deep learning models. You can also refer this book if you are stuck in-between the neural network modeling and need immediate assistance in getting accomplishing the task smoothly. Some prior knowledge of Python and tight hold on the basics of machine learning is required.