The real-world data, though massive, is largely unstructured, in the form of natural-language text. It is challenging but highly desirable to mine structures from massive text data, without extensive human annotation and labeling. In this book, we investigate the principles and methodologies of mining structures of factual knowledge (e.g., entities and their relationships) from massive, unstructured text corpora. Departing from many existing structure extraction methods that have heavy reliance on human annotated data for model training, our effort-light approach leverages human-curated facts stored in external knowledge bases as distant supervision and exploits rich data redundancy in large text corpora for context understanding. This effort-light mining approach leads to a series of new principles and powerful methodologies for structuring text corpora, including (1) entity recognition, typing and synonym discovery, (2) entity relation extraction, and (3) open-domain attribute-value mining and information extraction. This book introduces this new research frontier and points out some promising research directions.
Graphs naturally represent information ranging from links between web pages, to communication in email networks, to connections between neurons in our brains. These graphs often span billions of nodes and interactions between them. Within this deluge of interconnected data, how can we find the most important structures and summarize them? How can we efficiently visualize them? How can we detect anomalies that indicate critical events, such as an attack on a computer system, disease formation in the human brain, or the fall of a company? This book presents scalable, principled discovery algorithms that combine globality with locality to make sense of one or more graphs. In addition to fast algorithmic methodologies, we also contribute graph-theoretical ideas and models, and real-world applications in two main areas: -Individual Graph Mining: We show how to interpretably summarize a single graph by identifying its important graph structures. We complement summarization with inference, which leverages information about few entities (obtained via summarization or other methods) and the network structure to efficiently and effectively learn information about the unknown entities. -Collective Graph Mining: We extend the idea of individual-graph summarization to time-evolving graphs, and show how to scalably discover temporal patterns. Apart from summarization, we claim that graph similarity is often the underlying problem in a host of applications where multiple graphs occur (e.g., temporal anomaly detection, discovery of behavioral patterns), and we present principled, scalable algorithms for aligning networks and measuring their similarity. The methods that we present in this book leverage techniques from diverse areas, such as matrix algebra, graph theory, optimization, information theory, machine learning, finance, and social science, to solve real-world problems. We present applications of our exploration algorithms to massive datasets, including a Web graph of 6.6 billion edges, a Twitter graph of 1.8 billion edges, brain graphs with up to 90 million edges, collaboration, peer-to-peer networks, browser logs, all spanning millions of users and interactions.
Craniofacial Trauma, Diagnosis and Management offers detailed guidance on the diagnosis, surgical planning, and interdisciplinary treatment of craniofacial trauma. The book is divided into two parts. The first, devoted to classification and diagnosis of craniofacial fractures, includes chapters on anatomy, radiology, fracture classification, fracture mechanisms, epidemiological aspects, symptoms, and specific related aspects of neuro-craniofacial injuries. The second part addresses the treatment of craniofacial trauma, examining operative principles and providing step-by-step descriptions of a variety of hard and soft tissue reconstructive procedures. Complications and late sequelae following craniofacial reconstruction are examined, and a further chapters is devoted to delayed reconstruction of craniofacial defects. New developments and the role of computer-assisted treatment planning are discussed in the final section. This manual will provide an indispensable reference for residents in maxillofacial training and for maxillofacial/ neurosurgeons in the specialized field of craniofacial traumatology.
With the departure of European Muslims to the “Islamic State” and a wave of terrorist attacks in Europe in recent years, the questions of why and how individuals radicalize to Jihadi extremism attracted keen interest. This thesis examines how individuals radicalize by applying a theoretical framework that primarily refers to social capital theory, the economics of religion, and social movement theory. The analysis of the biographical backgrounds, pathways of radicalization, and network connections of more than 1,300 Jihadi extremists from Germany, Austria, and Switzerland shows that radicalization primarily need to be considered as a social process of isolation from former social contacts and affiliation with a new religious group. Radicalization is characterized by the transformation of social capital and often channeled through so-called “strong ties” to friends and family members. These peer networks constitute the social fundament of radical clusters on the local level which are usually linked to a broader milieu through exclusive mosque communities and religious authorities. Bonding social capital within these radical groups minimizes the risk of betrayal and promotes trust essential for clandestine and risky activities.
The scarcity of potable water is a great challenge. It may be resolved by the desalination of seawater. In this work, the possibilities of a new desalination technique using polymeric hydrogels as a separation medium for water and salt is explored. The bound charges in such a polymeric network prevent salt from entering it - under pressure the desalinated water is released from the gel. It is demonstrated that the method is viable and the influence of various process parameters investigated.
There are several books emphasizing the mineralogical and petrological aspects of granites, but this book is the only one emphasizing the experimental aspects.
Guide to Practical Use of Chemicals in Refineries and Pipelines delivers a well-rounded collection of content, references, and patents to show all the practical chemical choices available for refinery and pipeline usage, along with their purposes, benefits, and general characteristics. Covering the full spectrum of downstream operations, this reference solves the many problems that engineers and managers currently face, including corrosion, leakage in pipelines, and pretreatment of heavy oil feedstocks, something that is of growing interest with today's unconventional activity. Additional coverage on special refinery additives and justification on why they react the way they do with other chemicals and feedstocks is included, along with a reference list of acronyms and an index of chemicals that will give engineers and managers the opportunity to recognize new chemical solutions that can be used in the downstream industry. Presents tactics practitioners can use to effectively locate and utilize the right chemical application specific to their refinery or pipeline operation Includes information on how to safely perform operations with coverage on environmental issues and safety, including waste stream treatment and sulfur removal Helps readers understand the composition and applications of chemicals used in oil and gas refineries and pipelines, along with where they should be applied, and how their structure interacts when mixed at the refinery
Includes both a broad technical overview of dental materials and the chemicals that are used for the preparation and fabrication of dental materials in all dental applications This book focuses on the materials used for dental applications by looking at the fundamental issues and the developments that have taken place the past decade. While it provides a broad overview of dental materials, the chemicals that are used for the preparation and fabrication of dental materials are explained as well. Also, the desired properties of these materials are discussed and the relevance of the chemical, physical, and mechanical properties is elucidated. Methods for the characterization and classification, as well as clinical studies are reviewed here. In particular, materials for dental crowns, implants, toothpaste compositions, mouth rinses, as well as materials for toothbrushes and dental floss are discussed. For example, in toothpaste compositions, several classes of materials and chemicals are incorporated, such as abrasives, detergents, humectants, thickeners, sweeteners, coloring agents, bad breath reduction agents, flavoring agents, tartar control agents, and others. These chemicals, together with their structures, are detailed in the text.
This book presents approaches to address key challenges based on a vehicle level view and with a special emphasis on Drive-by-Wire systems. The design and testing of modern vehicle electronics are becoming more and more demanding due to increasing interdependencies among components and the safety criticality of tasks. The development towards Drive-by-Wire functionalities in vehicles with multiple actuators for vehicle control further increases the challenge. The book explicitly takes into account the interactions between components and aims at bridging the gap between the need to generate additional customer benefits and the effort to achieve functional safety. The book follows a twofold approach: on the one side, it presents a toolchain to support efficient further development of novel functionalities for Drive-by-Wire vehicles. The toolchain comprises appropriate software tools and scaled and full-scale experimental vehicles. On the other side, development towards functionally safe and flexible Drive-by-Wire vehicles is addressed by proposing a top-down designed architecture for vehicle electronics that is enabled by suitable mechanisms. The resulting goal achievement with regard to functional safety is evaluated based on a novel hierarchical approach.
The volumes published in the series Beiträge zur Altertumskunde comprise monographs, collective volumes, editions, translations and commentaries on various topics from the fields of Greek and Latin Philology, Ancient History, Archeology, Ancient Philosophy as well as Classical Reception Studies. The series thus offers indispensable research tools for a wide range of disciplines related to Ancient Studies.
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