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Bentley F.,USA Mobility | Tollmar K.,KTH Royal Institute of Technology
Conference on Human Factors in Computing Systems - Proceedings | Year: 2013

Self-logging is a critical component to many wellbeing systems. However, self-logging often is difficult to sustain at regular intervals over many weeks. We demonstrate the power of passive mobile notifications to increase logging of wellbeing data, particularly food intake, in a mobile health service. Adding notifications increased the frequency of logging from 12% in a one-month, ten-user pilot study without reminders to 63% in the full 60-user study with reminders included. We will discuss the benefits of passive notifications over existing interruptive methods. Copyright © 2013 ACM.


Lee D.,LG Corp | Seo H.,LG Corp | Clerckx B.,Samsung | Hardouin E.,Orange Group | And 3 more authors.
IEEE Communications Magazine | Year: 2012

3GPP has completed a study on coordinated multipoint transmission and reception techniques to facilitate cooperative communications across multiple transmission and reception points (e.g., cells) for the LTE-Advanced system. In CoMP operation, multiple points coordinate with each other in such a way that the transmission signals from/to other points do not incur serious interference or even can be exploited as a meaningful signal. The goal of the study is to evaluate the potential performance benefits of CoMP techniques and the implementation aspects including the complexity of the standards support for CoMP. This article discusses some of the deployment scenarios in which CoMP techniques will likely be most beneficial and provides an overview of CoMP schemes that might be supported in LTE-Advanced given the modern silicon/DSP technologies and backhaul designs available today. In addition, practical implementation and operational challenges are discussed. We also assess the performance benefits of CoMP in these deployment scenarios with traffic varying from low to high load. © 2012 IEEE.


Rankin J.W.,University of Texas at Austin | Richter W.M.,USA Mobility | Neptune R.R.,University of Texas at Austin
Journal of Biomechanics | Year: 2011

Manual wheelchair propulsion places considerable physical demand on the upper extremity and is one of the primary activities associated with the high prevalence of upper extremity overuse injuries and pain among wheelchair users. As a result, recent effort has focused on determining how various propulsion techniques influence upper extremity demand during wheelchair propulsion. However, an important prerequisite for identifying the relationships between propulsion techniques and upper extremity demand is to understand how individual muscles contribute to the mechanical energetics of wheelchair propulsion. The purpose of this study was to use a forward dynamics simulation of wheelchair propulsion to quantify how individual muscles deliver, absorb and/or transfer mechanical power during propulsion. The analysis showed that muscles contribute to either push (i.e., deliver mechanical power to the handrim) or recovery (i.e., reposition the arm) subtasks, with the shoulder flexors being the primary contributors to the push and the shoulder extensors being the primary contributors to the recovery. In addition, significant activity from the shoulder muscles was required during the transition between push and recovery, which resulted in increased co-contraction and upper extremity demand. Thus, strengthening the shoulder flexors and promoting propulsion techniques that improve transition mechanics have much potential to reduce upper extremity demand and improve rehabilitation outcomes. © 2011 Elsevier Ltd.


Logan L.R.,USA Mobility
Topics in Stroke Rehabilitation | Year: 2011

Improvement in functional skills is typically a goal of spasticity management. Spasticity management alone will improve the positive signs of the upper motor neuron syndrome without functional change. In this review, we demonstrate that a variety of therapy modalities are required to facilitate these improvements and impact the negative signs of the upper motor neuron syndrome. The evidence for neuromuscular electrical stimulation, surface electromyography training, serial casting, body weight-supported treadmill training, constraint-induced movement therapy, strengthening, and endurance training is reviewed as it relates to spasticity management. © 2011 Thomas Land publishers, Inc.


Bentley F.,USA Mobility | Basapur S.,USA Mobility
Conference on Human Factors in Computing Systems - Proceedings | Year: 2012

We describe our research path that took us from studying communication needs across distance and generations, to a small-scale study of a person-to-person location-based video service, and finally to a public beta of StoryPlace.me which extends this service to support public video sharing and historical content. The process was not a clear, linear design path, but one of an unexpected change in focus that resulted in the current service which goes beyond the original vision of tools for inter-generational communication. We will describe our research methods as well as key findings from each step of our journey and conclude with implications for similar product concept generation activities. © 2012 ACM.


Imran A.,University of Oklahoma | Zoha A.,USA Mobility
IEEE Network | Year: 2014

While an al dente character of 5G is yet to emerge, network densification, miscellany of node types, split of control and data plane, network virtualization, heavy and localized cache, infrastructure sharing, concurrent operation at multiple frequency bands, simultaneous use of different medium access control and physical layers, and flexible spectrum allocations can be envisioned as some of the potential ingredients of 5G. It is not difficult to prognosticate that with such a conglomeration of technologies, the complexity of operation and OPEX can become the biggest challenge in 5G. To cope with similar challenges in the context of 3G and 4G networks, recently, self-organizing networks, or SONs, have been researched extensively. However, the ambitious quality of experience requirements and emerging multifarious vision of 5G, and the associated scale of complexity and cost, demand a significantly different, if not totally new, approach toward SONs in order to make 5G technically as well as financially feasible. In this article we first identify what challenges hinder the current self-optimizing networking paradigm from meeting the requirements of 5G. We then propose a comprehensive framework for empowering SONs with big data to address the requirements of 5G. Under this framework we first characterize big data in the context of future mobile networks, identifying its sources and future utilities. We then explicate the specific machine learning and data analytics tools that can be exploited to transform big data into the right data that provides a readily useable knowledge base to create end-to-end intelligence of the network. We then explain how a SON engine can build on the dynamic models extractable from the right data. The resultant dynamicity of a big data empowered SON (BSON) makes it more agile and can essentially transform the SON from being a reactive to proactive paradigm and hence act as a key enabler for 5G's extremely low latency requirements. Finally, we demonstrate the key concepts of our proposed BSON framework through a case study of a problem that the classic 3G/4G SON fails to solve. © 1986-2012 IEEE.


Greensmith T.M.,USA Mobility
Proceedings of the Annual Hawaii International Conference on System Sciences | Year: 2016

In this paper we advance the «Personal Equation of Interaction», examining individual differences between users that can be used to predict the accuracy of analysts' reasoning during visual analysis. We report 2 studies which expand the use of the Personal Equation of Interaction (PEI) beyond its current scope of predicting the accuracy of interface learning tasks to predicting the outcome of visio-cognitive object categorization. These studies extend the research of Yamauchi & Markman [3] using the dual learning theory of Ashby & Maddox [17]. Because visual reasoning is ubiquitous to the human experience and integral to big data visualization analysis, this research bridges the domain divide between psychological categorization theory and visual data analysis using composite glyphs. We define a psychometric measure that predicts the accuracy of composite glyph categorization and discuss its impact going forward. © 2016 IEEE.


ALPHARETTA, Ga.--(BUSINESS WIRE)--Agilysys, Inc. (Nasdaq:AGYS), a leading global provider of next-generation hospitality software solutions and services, today announced that Robert L. (Rob) Jacks has been named vice president of professional services for the company, effective June 1. In his new role, Jacks' primary responsibilities will be to build Agilysys' consulting business and help customers improve operational performance through technology. He will report to Rehan Jaddi, senior vice president of customer support & service solutions. Jacks is an IT industry veteran, with more than two decades of experience. Most recently, he provided leadership and direction on the construction of a 45-acre five-star resort in Costa Rica, where he managed a team of international consultants, architects, attorneys and engineers. Jacks has also served as chief information officer for the Chickasaw Nation Division of Commerce, where he was responsible for leading the corporate technology agenda. In addition, he has held IT leadership positions at Cracker Barrel Old Country Store, Mandalay Resort Group and USA Mobility. "Rob's background and expertise, particularly as it relates to the hospitality industry, make him uniquely qualified for the position of vice president of professional services at Agilysys," said Jaddi. "His understanding of how technology can improve business performance, along with a track record of providing tangible results, will help us deliver world-class professional services excellence to our customers. This represents a significant step in the strengthening of our management team, and I am thrilled Rob has joined us." Jacks was selected by Computerworld magazine as a 'Top 100 IT Leader' for 2009 and selected as an 'IBM Champion' in 2011, 2012 and 2013 for his leadership role in IT management for the Chickasaw Nation. In 2011, he received the prestigious Ventana Research Leadership Award, which recognizes individuals who have contributed to technology innovation within their organizations. In addition, Jacks has served on the advisory boards of TribalNet and Gaming & Leisure magazine, and he is actively involved in the University of Oklahoma Center for MIS Studies. He holds a Bachelor of Science degree in accounting from the University of Montevallo and an MBA from Samford University. Agilysys is a leading developer and marketer of software-enabled solutions and services to the hospitality industry. The company specializes in next-generation point-of-sale, property management, inventory and procurement, workforce management, analytics, document management and mobile and wireless solutions. These solutions are designed to streamline operations, improve efficiency, increase guest recruitment and wallet share, enhance the guest experience and maximize revenue potential. Agilysys serves four major market sectors: Gaming, both corporate and tribal; Hotels, Resorts and Cruise; Foodservice Management; and Restaurants, Universities, Stadia and Healthcare. A significant portion of the company's consolidated revenue is derived from contract support, maintenance and subscription services. Agilysys operates extensively throughout North America, Europe and Asia, with corporate services located in Alpharetta, GA, and offices in Singapore, Hong Kong and Malaysia. For more information, visit www.agilysys.com.


ALPHARETTA, Ga.--(BUSINESS WIRE)--Agilysys, Inc. (Nasdaq:AGYS), a leading global provider of next-generation hospitality software solutions and services, today announced that Robert L. (Rob) Jacks has been named vice president of professional services for the company, effective June 1. In his new role, Jacks' primary responsibilities will be to build Agilysys' consulting business and help customers improve operational performance through technology. He will report to Rehan Jaddi, senior vice president of customer support & service solutions. Jacks is an IT industry veteran, with more than two decades of experience. Most recently, he provided leadership and direction on the construction of a 45-acre five-star resort in Costa Rica, where he managed a team of international consultants, architects, attorneys and engineers. Jacks has also served as chief information officer for the Chickasaw Nation Division of Commerce, where he was responsible for leading the corporate technology agenda. In addition, he has held IT leadership positions at Cracker Barrel Old Country Store, Mandalay Resort Group and USA Mobility. "Rob's background and expertise, particularly as it relates to the hospitality industry, make him uniquely qualified for the position of vice president of professional services at Agilysys," said Jaddi. "His understanding of how technology can improve business performance, along with a track record of providing tangible results, will help us deliver world-class professional services excellence to our customers. This represents a significant step in the strengthening of our management team, and I am thrilled Rob has joined us." Jacks was selected by Computerworld magazine as a 'Top 100 IT Leader' for 2009 and selected as an 'IBM Champion' in 2011, 2012 and 2013 for his leadership role in IT management for the Chickasaw Nation. In 2011, he received the prestigious Ventana Research Leadership Award, which recognizes individuals who have contributed to technology innovation within their organizations. In addition, Jacks has served on the advisory boards of TribalNet and Gaming & Leisure magazine, and he is actively involved in the University of Oklahoma Center for MIS Studies. He holds a Bachelor of Science degree in accounting from the University of Montevallo and an MBA from Samford University. Agilysys is a leading developer and marketer of software-enabled solutions and services to the hospitality industry. The company specializes in next-generation point-of-sale, property management, inventory and procurement, workforce management, analytics, document management and mobile and wireless solutions. These solutions are designed to streamline operations, improve efficiency, increase guest recruitment and wallet share, enhance the guest experience and maximize revenue potential. Agilysys serves four major market sectors: Gaming, both corporate and tribal; Hotels, Resorts and Cruise; Foodservice Management; and Restaurants, Universities, Stadia and Healthcare. A significant portion of the company's consolidated revenue is derived from contract support, maintenance and subscription services. Agilysys operates extensively throughout North America, Europe and Asia, with corporate services located in Alpharetta, GA, and offices in Singapore, Hong Kong and Malaysia. For more information, visit www.agilysys.com.


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