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Mobile Sensors And Context Aware Computing

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Mobile Sensors and Context Aware Computing

Mobile Sensors and Context Aware Computing Book
Author : Manish J. Gajjar
Publisher : Morgan Kaufmann
Release : 2017-02-22
ISBN : 0128017988
Language : En, Es, Fr & De

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Book Description :

Mobile Sensors and Context-Aware Computing is a useful guide that explains how hardware, software, sensors, and operating systems converge to create a new generation of context-aware mobile applications. This cohesive guide to the mobile computing landscape demonstrates innovative mobile and sensor solutions for platforms that deliver enhanced, personalized user experiences, with examples including the fast-growing domains of mobile health and vehicular networking. Users will learn how the convergence of mobile and sensors facilitates cyber-physical systems and the Internet of Things, and how applications which directly interact with the physical world are becoming more and more compatible. The authors cover both the platform components and key issues of security, privacy, power management, and wireless interaction with other systems. Shows how sensor validation, calibration, and integration impact application design and power management Explains specific implementations for pervasive and context-aware computing, such as navigation and timing Demonstrates how mobile applications can satisfy usability concerns, such as know me, free me, link me, and express me Covers a broad range of application areas, including ad-hoc networking, gaming, and photography

Mobile Context Awareness

Mobile Context Awareness Book
Author : Tom Lovett,Eamonn O'Neill
Publisher : Springer Science & Business Media
Release : 2012-04-23
ISBN : 0857296256
Language : En, Es, Fr & De

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Book Description :

Mobile context-awareness is a popular research trend in the field of ubiquitous computing. Advances in mobile device sensory hardware and the rise of ‘virtual’ sensors such as web application programming interfaces (APIs) mean that the mobile user is exposed to a vast range of data that can be used for new advanced applications. Mobile Context Awareness presents work from industrial and academic researchers, focusing on novel methods of context acquisition in the mobile environment – particularly through the use of physical and virtual sensors – along with research into new applications utilising this context. In addition, the book provides insights into the technical and usability challenges involved in mobile context-awareness, as well as observations on current and future trends in the field.

A Framework for Abstraction and Virtualization of Sensors in Mobile Context aware Computing

A Framework for Abstraction and Virtualization of Sensors in Mobile Context aware Computing Book
Author : Francisco de Borja Gamecho Ibáñez
Publisher : Unknown
Release : 2015
ISBN : 0987650XXX
Language : En, Es, Fr & De

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Book Description :

Download A Framework for Abstraction and Virtualization of Sensors in Mobile Context aware Computing book written by Francisco de Borja Gamecho Ibáñez, available in PDF, EPUB, and Kindle, or read full book online anywhere and anytime. Compatible with any devices.

Semantics in Mobile Sensing

Semantics in Mobile Sensing Book
Author : Zhixian Yan,Dipanjan Chakraborty
Publisher : Morgan & Claypool Publishers
Release : 2014-05-01
ISBN : 1627053913
Language : En, Es, Fr & De

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Book Description :

The dramatic progress of smartphone technologies has ushered in a new era of mobile sensing, where traditional wearable on-body sensors are being rapidly superseded by various embedded sensors in our smartphones. For example, a typical smartphone today, has at the very least a GPS, WiFi, Bluetooth, triaxial accelerometer, and gyroscope. Alongside, new accessories are emerging such as proximity, magnetometer, barometer, temperature, and pressure sensors. Even the default microphone can act as an acoustic sensor to track noise exposure for example. These sensors act as a "lens" to understand the user's context along different dimensions. Data can be passively collected from these sensors without interrupting the user. As a result, this new era of mobile sensing has fueled significant interest in understanding what can be extracted from such sensor data both instantaneously as well as considering volumes of time series from these sensors. For example, GPS logs can be used to determine automatically the significant places associated to a user's life (e.g., home, office, shopping areas). The logs may also reveal travel patterns, and how a user moves from one place to another (e.g., driving or using public transport). These may be used to proactively inform the user about delays, relevant promotions from shops, in his "regular" route. Similarly, accelerometer logs can be used to measure a user's average walking speed, compute step counts, gait identification, and estimate calories burnt per day. The key objective is to provide better services to end users. The objective of this book is to inform the reader of the methodologies and techniques for extracting meaningful information (called "semantics") from sensors on our smartphones. These techniques form the cornerstone of several application areas utilizing smartphone sensor data. We discuss technical challenges and algorithmic solutions for modeling and mining knowledge from smartphone-resident sensor data streams. This book devotes two chapters to dive deep into a set of highly available, commoditized sensors---the positioning sensor (GPS) and motion sensor (accelerometer). Furthermore, this book has a chapter devoted to energy-efficient computation of semantics, as battery life is a major concern on user experience.

Generic and Energy Efficient Context Aware Mobile Sensing

Generic and Energy Efficient Context Aware Mobile Sensing Book
Author : Ozgur Yurur,Chi Harold Liu
Publisher : CRC Press
Release : 2015-02-02
ISBN : 149870011X
Language : En, Es, Fr & De

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Book Description :

Elaborating on the concept of context awareness, this book presents up-to-date research and novel framework designs for context-aware mobile sensing. Generic and Energy-Efficient Context-Aware Mobile Sensing proposes novel context-inferring algorithms and generic framework designs that can help readers enhance existing tradeoffs in mobile sensing,

Context Aware Pervasive Systems

Context Aware Pervasive Systems Book
Author : Seng Loke
Publisher : CRC Press
Release : 2006-12-07
ISBN : 9781420013498
Language : En, Es, Fr & De

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Book Description :

The concept of aware systems is among the most exciting trends in computing today, fueled by recent developments in pervasive computing, including new computers worn by users, embedded devices, smart appliances, sensors, and varieties of wireless networking technology. Context-Aware Pervasive Systems: The Architecture of a New Breed of Applications introduces a diverse set of application areas and provides blueprints for building context-aware behavior into applications. Reviewing the anatomy of context-aware pervasive applications, this resource covers abstract architecture. It examines mobile services, appliances, smart devices, software agents, electronic communication, sensor networks, security frameworks, and intelligent software agents. The book also discusses the use of context awareness for communication among people, devices, and software agents and how sensors can be aware of their own situations. Exploring the use of physical context for controlling and enhancing security in pervasive computing environments, this guide addresses mirror worlds and elucidates design perspectives based on a declarative programming language paradigm. This carefully paced volume presents a timely and relevant introduction to the emergence of context-aware systems and brings together architectures and principles of context-aware computing in one source.

Sensing and Systems in Pervasive Computing

Sensing and Systems in Pervasive Computing Book
Author : Dan Chalmers
Publisher : Springer Science & Business Media
Release : 2011-07-25
ISBN : 9780857298416
Language : En, Es, Fr & De

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Book Description :

Focus on issues and principles in context awareness, sensor processing and software design (rather than sensor networks or HCI or particular commercial systems). Designed as a textbook, with readings and lab problems in most chapters. Focus on concepts, algorithms and ideas rather than particular technologies.

Distributed Context Aware Systems

Distributed Context Aware Systems Book
Author : Paulo Ferreira,Pedro Alves
Publisher : Springer Science & Business
Release : 2014-04-22
ISBN : 3319048821
Language : En, Es, Fr & De

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Book Description :

Context-aware systems aim to deliver a rich user experience by taking into account the current user context (location, time, activity, etc.), possibly captured without his intervention. For example, cell phones are now able to continuously update a user’s location while, at the same time, users execute an increasing amount of activities online, where their actions may be easily captured (e.g. login in a web application) without user consent. In the last decade, this topic has seen numerous developments that demonstrate its relevance and usefulness. The trend was accelerated with the widespread availability of powerful mobile devices (e.g. smartphones) that include a myriad of sensors which enable applications to capture the user context. However, there are several challenges that must be addressed; we focus on scalability (large number of context aware messages) and privacy (personal data that may be propagated). This book is organized in five chapters starting with an introduction to the theme raising the most important challenges. Then, chapter two presents several important definitions (establishing a common ground for the following chapters) and taxonomy. These are important to chapter three which describes some of the most relevant distributed context-aware systems that can be classified according to the taxonomy. Privacy is addressed in chapter four and chapter five presents some important conclusions. The audience for this book is wide; researchers, students and professionals interested in the areas addressed will find the most relevant information regarding scalability and privacy in distributed context-aware systems.

A Framework for Pervasive Context Awareness

A Framework for Pervasive Context Awareness Book
Author : Chenguang Shen
Publisher : Unknown
Release : 2016
ISBN : 0987650XXX
Language : En, Es, Fr & De

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Book Description :

The proliferation of pervasive computing devices with unprecedented sensing, communication, and computation capabilities has enabled continuous and ubiquitous monitoring of users and their surrounding environments. While smartphones have evolved from only communication devices into powerful personal computing platforms, connected devices such as smartwatches, cameras, motions sensors, thermostats, and energy meters, collectively dubbed as the Internet of Things, are also rapidly permeating our living spaces. The continuous stream of richly annotated, real-time data made available by tapping into the spectrum of sensors available on these devices has led to the emergence of a sprawling ecosystem of context-aware apps. These apps use sensors such as GPS, microphone, accelerometer, and gyroscope to make diverse inferences about user activities and contexts. Typical context-aware apps employ a suite of machine learning algorithms to extract semantically meaningful inferences from sensor data. However, today's connected devices and mobile operating systems are not designed to support sensing and inference workloads. Compared with the rich network stack on pervasive devices, where one can leverage protocols and abstractions in different layers, context inference apps are composed in a monolithic fashion. That is, developers have to implement all data collection and inference logic using the raw data. As a result, the development and execution of context inference apps today are accompanied by myriad difficulties. First, the limited sensor coverage from running inferences on a single device and the need of hand-picking high-level features have made it challenging to achieve high inference accuracy in building the classification model of apps. Second, the continuous execution of complex algorithms on the main app processor of smartphones and the use of energy-hungry sensors have resulted in high energy consumption of inference apps, especially when they are executed on battery-powered pervasive devices. Finally, the monolithic development practice limits the adoption of inference apps onto heterogeneous devices, and requires enormous amount of efforts from app developers in composing the apps. In this dissertation we make three research contributions towards building a framework for pervasive context awareness: - We first showcase that context-aware inferences can benefit from heterogeneous connected devices such as smartwatches. We develop an example app to autonomously infer workout exercises of users from only sensors on a commercial smartwatch, achieving 90% classification accuracy for both cardio and weightlifting exercises while extending the watch battery life by up to 19 hours compared with prior approaches. - Having identified the problems from our example app, we then perform three optimizations of context inference apps. We have achieved (1) comparable inference accuracy as traditional models and acceptable latency using deep learning without hand-picking features; (2) up to 30x speed-up of deep learning tasks using mobile GPUs and up to 60% energy saving of off-loading inference tasks from the CPU to the DSP; and (3) up to 37% accuracy improvement and up to 67% less energy consumption for context-aware apps from watch-phone coordinations. - Finally, we close the loop by proposing the design and implementation of a programming framework for context inference apps, with a set of programming abstractions and an associated runtime. The framework helps reduce development tasks by up to 4.5x and source lines of code by up to 12x. It also tackles runtime challenges and achieves 3x better inference accuracy by handling environmental dynamics. With this work we have also created an open-source toolkit for developing and executing context inference apps using heterogeneous pervasive devices.

Location and Context Awareness

Location  and Context Awareness Book
Author : Thomas Strang,Claudia Linnhoff-Popien
Publisher : Springer Science & Business Media
Release : 2005-05-12
ISBN : 9783540258964
Language : En, Es, Fr & De

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Book Description :

Context-awareness is one of the drivers of the ubiquitous computing paradigm. Well-designed context modeling and context retrieval approaches are key p- requisites in any context-aware system. Location is one of the primary aspects of all major context models — together with time, identity and activity. From the technical side, sensing, fusing and distributing location and other context information is as important as providing context-awareness to applications and services in pervasive systems. Thematerialsummarizedinthisvolumewasselectedforthe1stInternational Workshop on Location- and Context-Awareness (LoCA 2005) held in coope- tion with the 3rd International Conference on Pervasive Computing 2005. The workshop was organized by the Institute of Communications and Navigation of the German Aerospace Center (DLR) in Oberpfa?enhofen, and the Mobile and Distributed Systems Group of the University of Munich. During the workshop, novel positioning algorithms and location sensing te- niques were discussed, comprising not only enhancements of singular systems, like positioning in GSM or WLAN, but also hybrid technologies, such as the integration of global satellite systems with inertial positioning. Furthermore, - provements in sensor technology, as well as the integration and fusion of sensors, were addressed both on a theoretical and on an implementation level. Personal and con?dential data, such as location data of users, have p- found implications for personal information privacy. Thus privacy protection, privacy-oriented location-aware systems, and how privacy a?ects the feasibility and usefulness of systems were also addressed in the workshop.

Mobile Computing Applications and Services

Mobile Computing  Applications  and Services Book
Author : David Uhler,Khanjan Mehta
Publisher : Springer
Release : 2013-02-05
ISBN : 3642366325
Language : En, Es, Fr & De

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Book Description :

This book constitutes the thoroughly refereed post-conference proceedings of the Fourth International Conference on Mobile Computing, Applications, and Services (MobiCASE 2012) held in Seattle, Washington, USA, in October 2012. The 18 revised full papers presented together with 9 revised poster papers were carefully reviewed and selected from 51 submissions. The conference papers are organized in five topical sections, covering mobile application development, multi-dimensional interactions, system support and architecture, mobile applications, and mobile services.

Context Aware Communication and Computing Applications for Smart Environment

Context Aware Communication and Computing  Applications for Smart Environment Book
Author : Punnarumol Temdee,Ramjee Prasad
Publisher : Springer
Release : 2017-06-29
ISBN : 3319590359
Language : En, Es, Fr & De

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Book Description :

This book introduces context-aware computing, providing definitions, categories, characteristics, and context awareness itself and discussing its applications with a particular focus on smart learning environments. It also examines the elements of a context-aware system, including acquisition, modelling, reasoning, and distribution of context. It also reviews applications of context-aware computing – both past and present – to offer readers the knowledge needed to critically analyse how context awareness can be put to use. It is particularly to those new to the subject area who are interested in learning how to develop context-aware computing-oriented applications, as well as postgraduates and researchers in computer engineering, communications engineering related areas of information technology (IT). Further it provides practical know-how for professionals working in IT support and technology, consultants and business decision-makers and those working in the medical, human, and social sciences.

Context Management for Distributed and Dynamic Context Aware Computing

Context Management for Distributed and Dynamic Context Aware Computing Book
Author : Ricardo Couto Antunes da Rocha,Markus Endler
Publisher : Springer Science & Business Media
Release : 2012-05-03
ISBN : 1447140206
Language : En, Es, Fr & De

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Book Description :

Research in context-aware computing has produced a number of middleware systems for context management. However, development of ubiquitous context-aware applications is still a challenge because most current middleware systems are still focused on isolated and static context-aware environments. Context-aware environments are inherently dynamic as a result of occasional additions or upgrade of sensors, applications or context inference mechanisms. Context Management for Distributed and Dynamic Context-Aware Computing proposes a novel architecture for context management based on the concept of context domains, allowing applications to keep context interests across distributed context management systems. The authors describe a distributed middleware that implements the aforementioned concepts, without compromising scalability and efficiency of context access.

Context Aware Computing

Context Aware Computing Book
Author : Anonim
Publisher : Walter de Gruyter GmbH & Co KG
Release : 2017-12-18
ISBN : 3110556677
Language : En, Es, Fr & De

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Book Description :

The book addresses the impact of ambient intelligence, particularly its user-centric context-awareness requirement on data management strategies and solutions. Techniques of conceptualizing, capturing, protecting, modelling, and querying context information, as well as context-aware data management application are discussed, making the book is an essential reference for computer scientists, information scientists and industrial engineers.

Context Aware Systems and Applications

Context Aware Systems and Applications Book
Author : Phan Cong Vinh,Nguyen Manh Hung,Nguyen Thanh Tung,Jun Suzuki
Publisher : Springer
Release : 2013-02-02
ISBN : 3642366422
Language : En, Es, Fr & De

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Book Description :

This book constitutes the thoroughly refereed proceedings of the first International Conference on Context-Aware Systems and Applications, ICCASA 2012, held in Ho Chi Minh City, Vietnam, in November 2012. The 34 revised full papers presented were carefully selected and reviewed from over 100 submissions. The papers cover a wide spectrum of issues in the area of Context-Aware Systems (CAS). CAS are going to shape networked computing systems of the future

A Distributed Architecture for Computing Context in Mobile Devices

A Distributed Architecture for Computing Context in Mobile Devices Book
Author : Anonim
Publisher : Unknown
Release : 2005
ISBN : 0987650XXX
Language : En, Es, Fr & De

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Book Description :

Context-aware computing aims at making mobile devices sensitive to the social and physical settings in which they are used. A necessary requirement to achieve this goal is to enable those devices to establish a shared understanding of the desired settings. Establishing a shared understanding entails the need to manipulate sensed data in order to capture a real world situation wholly, conceptually, and meaningfully. Quite often, however, the data acquired from sensors can be inexact, incomplete, and/or uncertain. Inexact sensing arises mostly due to the inherent limitation of sensors to capture a real world phenomenon precisely. Incompleteness is caused by the absence of a mechanism to capture certain real-world aspects; and uncertainty stems from the lack of knowledge about the reliability of the sensing sources, such as their sensing range, accuracy, and resolution. The thesis identifies a set of criteria for a context-aware system to capture dynamic real-world situations. On the basis of these criteria, a distributed architecture is designed, implemented and tested. The architecture consists of Primitive Context Servers, which abstract the acquisition of primitive contexts from physical sensors; Aggregators, to minimise error caused by inconsistent sensing, and to gather correlated primitive contexts pertaining to a particular entity or situation; a Knowledge Base and an Empirical Ambient Knowledge Component, to model dynamic properties of entities with facts and beliefs; and a Composer, to reason about dynamic real-world situations on the basis of sensed data. Two additional components, namely, the Event Handler and the Rule Organiser, are responsible for dynamically generating context rules by associating decision events? signifying a user?s activity? with the context in which those decision events are produced. Context-rules are essential elements with which the behaviour of mobile devices can be controlled and useful services can be provided. Four estimation.

Context Aware Pervasive Systems and Applications

Context Aware Pervasive Systems and Applications Book
Author : Parikshit N. Mahalle,Prashant S. Dhotre
Publisher : Springer Nature
Release : 2019-09-19
ISBN : 9813299525
Language : En, Es, Fr & De

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Book Description :

This textbook explores the current challenges in and future prospects of context-aware pervasive systems and applications. The phenomenal advances in broadband technology and ubiquitous access to the Internet have transformed Internet computing into the Internet of Things (IoT), which is now evolving toward the Internet of Everything. Modern scientific, engineering, and business applications are increasingly dependent on machine-to-machine communication, wherein there is less human intervention. In turn, this creates a need for context-aware pervasive systems and applications in which RFID, sensors, and smartphones play a key role. The book provides an essential overview of context, context management, and how to perform context management in various use cases. In addition, it addresses context-aware computing and personalization, various architectures for context-aware systems, and security issues. The content is explained using straightforward language and easy-to-follow examples, case studies, technical descriptions, procedures, algorithms, and protocols for context-aware systems.

Games and Learning Alliance

Games and Learning Alliance Book
Author : João Dias,Pedro A. Santos,Remco C. Veltkamp
Publisher : Springer
Release : 2017-11-28
ISBN : 3319719408
Language : En, Es, Fr & De

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Book Description :

This book constitutes the refereed proceedings of the 6th International Conference on Games and Learning Alliance, GALA 2017, held in Lisbon, Portugal, in December 2017. The 16 revised regular papers presented together with 6 poster papers were carefully reviewed and selected from 45 submissions. The papers cover topics such as games in education and training; games for health and special children; augmented and virtual reality; methods and tools (for desing and development); and poster abstracts.

Refining Current Practices in Mobile and Blended Learning New Applications

Refining Current Practices in Mobile and Blended Learning  New Applications Book
Author : Parsons, David
Publisher : IGI Global
Release : 2012-01-31
ISBN : 1466600543
Language : En, Es, Fr & De

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Book Description :

This volume draws together all the articles published by the International Journal of Mobile and Blended Learning in its second year of publication (2010). As the use of mobile technology for personal and business applications continues to grow, it naturally follows that educators and researchers will investigate the use of mobile devices for knowledge sharing and learning. Refining Current Practices in Mobile and Blended Learning: New Applications provides perspectives on new approaches to learning theory and practice in increasingly mobile, immersive environments. Situated at the intersection of theory and practice, this book provides foundational research on the development and implementation of mobile games, the delivery of mobile and blended learning, and philosophical underpinnings of this emerging discipline.