DESCRIPTION Users expect search to be simple: They enter a few terms and expect perfectly-organized, relevant results instantly. But behind this simple user experience, complex machinery is at work. Whether using Elasticsearch, Solr, or another search technology, the solution is never one size fits all. Returning the right search results requires conveying domain knowledge and business rules in the search engine's data structures, text analytics, and results ranking capabilities. Relevant Search demystifies relevance work. Using Elasticsearch, it tells how to return engaging search results to users, helping readers understand and leverage the internals of Lucene-based search engines. The book walks through several real-world problems using a cohesive philosophy that combines text analysis, query building, and score shaping to express business ranking rules to the search engine. It outlines how to guide the engineering process by monitoring search user behavior and shifting the enterprise to a search-first culture focused on humans, not computers. It also shows how the search engine provides a deeply pluggable platform for integrating search ranking with machine learning, ontologies, personalization, domain-specific expertise, and other enriching sources. KEY FEATURES Highly relevant, concrete, hands-on guide Digs deep into search engine technology Contains essential tools, tips, and strategies for building engaging search engines AUDIENCE For readers who can code moderately complex tasks. ABOUT THE TECHNOLOGY Lucene is the underlying technology that backs both Elasticsearch and Solr. Dominant search engines are based upon Lucene and since Lucene itself is based upon the strong foundation of Information Retrieval research, the book will be applicable to almost any search technology available now or in the foreseeable future.

Learn everything about the latest machine learning techniques and create search engines that drive more domain-aware and intelligent search. AI-Powered Search teaches you the latest machine-learning techniques to create search engines that continuously learn from your users and your content. Written by Trey Grainger, the Chief Algorithms Officer at Lucidworks, this authoritative book empowers you to create and deploy search engines that take advantage of user interactions and hidden semantic relationships. This book is ideal for software developers or data scientists familiar with the basics of search engine development. It will show you ways to create content that will constantly get smarter and automatically deliver better, more relevant search experiences. What's inside Reflected intelligence to continually learn and improve search relevancy Natural language search with automatically-learned knowledge graphs Semantic search, with domain-specific terms, phrases, concepts, and relationships Personalised search, utilising user behavioural signals and learned user profiles Automated Learning to Rank (machine-learned ranking) from user signals Word embeddings, vector search, question answering, image and voice search, and other modern search paradigms About the technology The search box has become the "de facto" user interface for modern data-driven applications. Users expect the software to fully understand their search inputs, context, and activity and return the right answers, every time. Fortunately, you no longer need a massive team manually adjusting relevancy parameters to deliver optimal search results. Using the power of AI, you can develop search solutions that dynamically learn from your content and users, constantly getting smarter and delivering better answers.

Stand by for five exciting tales from the Martian past and future This collection of science fiction is by the author of The Man Who Conquered Mars and Jupiter IV. Open this book and experience these unusual and thought provoking stories The Mars Corporation is establishing a permanent colony on Mars. Hector Rodriguez along with Helen Meers are tasked with constructing the human habitats and support facilities from Earth-using robots. Mars colony will be up and running before Hector and forty-nine other intrepid pioneers arrive at their new home. And home it will be: because this is a one-way trip Rocky and Augie passed their Scout First Aid class, but their skills are put to the test when a medical emergency arises during an overnight campout in a Martian cave. Aviation pioneer Titus Andronicus Scott perished in 1956 when an experimental aircraft he was flying crashed into the Pacific Ocean. Or did he? Neither Scott nor his aircraft were ever found. Learn the story behind the story in this biographical mystery. Who is that woman in the back seat of the Mars rover and why is she clutching a metal cylinder so tightly? Join four Mars colonists as they travel across the vast Martian desert on a mysterious mission. Elderly shipping tycoon Andrew Smithers recalls his long life as a Mars colonist while exploring a cavern he visited as a young man. See what the next century of life on Mars could be like through the eyes of one who lived it.

Ride with Anastasia Konstantinova across hundreds of miles of desert, go spelunking in ancient caves, endure a solar storm, meet a Martian dust devil, and experience life as a Mars Colonist. Ana, along with her friends Andy and Bob, become embroiled in political intrigue, fight in a revolution, explore the natural world of Mars, face the dangers of colonizing a planet using the technology of 2052, and rescue the crew of a crashed spacecraft. Together, Ana and her friends must also solve the mystery of who built a recently discovered alien structure and who left a human artifact there a hundred years before. As the object of the affections of her two young friends, Ana must also resolve the problem posed by a romantic triangle. The reader may be surprised by her solution and will enjoy the action, adventure, and lively dialog in this upbeat, swiftly paced story. Studying to become an aerologist, or Mars geologist, Ana is the oldest person born and raised in Mars Colony and is a leader among her peers. How she will answer this unwanted call to leadership is one of her many challenges. While playing detective, Ana balances the romantic attentions of Andy, her young Mars-born friend, and Bob, a handsome young Colonist from Kansas. Wise beyond his years with a keen sense of humor, Andy is a courageous fighter in the Colony's struggle for independence, as well as a loyal friend. Equally brave and a brilliant scientist, Bob proves himself to be a steadfast friend to both Ana and Andy. No doom or gloom here: This story takes an optimistic view of the next 45 years, during which Mars and the Moon are colonized while Earth prospers. Mars Corporation is a multinational, interplanetary company created for the purpose of colonizing and developing Mars. The major space-faring nations as well as private investors have combined their efforts to establish the Colony and finance it, and the economics of interplanetary exploration and development are an important part of the story. Intertwined with the story is a friendly introduction to areology, areography, Mars planetary science, the mechanics of interplanetary travel, and the many technical problems encountered while establishing a colony on Mars. During the natural course of the story, environmental issues such as the search for water; resource utilization; the use of nuclear power, solar power, and hydrogen power; and the rugged climate on Mars are explored by these capable, likeable, and well-informed characters.