scholarly journals Lightweight Caching and Load Balancing for Efficient Content Delivery in Information-Centric IoT

2021 ◽  
Author(s):  
◽  
Jakob Pfender
Keyword(s):  
Load Balancing ◽  
Network Topology ◽  
Future Internet ◽  
Content Delivery ◽  
Future Internet Architecture ◽  
Cache Placement ◽  
Iot Devices ◽  
Key Aspects

<p>In recent years, Information-Centric Networking (ICN) has emerged as a promising candidate for a future Internet architecture. While originally designed with the traditional Internet in mind, it has also been identified as a potential replacement for current Internet of Things (IoT) networking solutions. However, applications in the IoT face a number of unique challenges due to the constrained nature of the hardware. One of these challenges is that available memory is often extremely limited.  This thesis aims to evaluate the feasibility of using ICN in-network caching on IoT devices in order to achieve efficient content delivery. It evaluates the performance of existing approaches on constrained hardware and explores how the technology can be improved and tailored towards that environment. Existing strategies are found to be lacking in key aspects, particularly the fact that the effects of network topology are often not considered when making caching decisions. It is shown that approaches based on network centrality are promising, but existing implementations are not suited for constrained hardware. Therefore, a lightweight in-network caching strategy called Approximate Betweenness Centrality (ABC) is proposed that takes the specific requirements of IoT into consideration and allows for efficient cache placement regardless of network topology. Then, a modular solution for load balancing through off-path caching is presented to address potential shortcomings of the centrality-based caching approach. It allows the network to make more efficient use of available caching resources without introducing additional overhead. Furthermore, solutions for ensuring Quality of Service (QoS) are discussed. The expanded role of caching strategies under such QoS constraints is explored and their performance is evaluated.  This thesis shows that it is possible to design and deploy lightweight, low-overhead solutions on constrained hardware. Using a realistic deployment of physical IoT devices, it is demonstrated that these approaches can reach satisfactory levels of performance.</p>

scholarly journals Lightweight Caching and Load Balancing for Efficient Content Delivery in Information-Centric IoT

2021 ◽  
Author(s):  
◽  
Jakob Pfender
Keyword(s):  
Load Balancing ◽  
Network Topology ◽  
Future Internet ◽  
Content Delivery ◽  
Future Internet Architecture ◽  
Cache Placement ◽  
Iot Devices ◽  
Key Aspects

<p>In recent years, Information-Centric Networking (ICN) has emerged as a promising candidate for a future Internet architecture. While originally designed with the traditional Internet in mind, it has also been identified as a potential replacement for current Internet of Things (IoT) networking solutions. However, applications in the IoT face a number of unique challenges due to the constrained nature of the hardware. One of these challenges is that available memory is often extremely limited.  This thesis aims to evaluate the feasibility of using ICN in-network caching on IoT devices in order to achieve efficient content delivery. It evaluates the performance of existing approaches on constrained hardware and explores how the technology can be improved and tailored towards that environment. Existing strategies are found to be lacking in key aspects, particularly the fact that the effects of network topology are often not considered when making caching decisions. It is shown that approaches based on network centrality are promising, but existing implementations are not suited for constrained hardware. Therefore, a lightweight in-network caching strategy called Approximate Betweenness Centrality (ABC) is proposed that takes the specific requirements of IoT into consideration and allows for efficient cache placement regardless of network topology. Then, a modular solution for load balancing through off-path caching is presented to address potential shortcomings of the centrality-based caching approach. It allows the network to make more efficient use of available caching resources without introducing additional overhead. Furthermore, solutions for ensuring Quality of Service (QoS) are discussed. The expanded role of caching strategies under such QoS constraints is explored and their performance is evaluated.  This thesis shows that it is possible to design and deploy lightweight, low-overhead solutions on constrained hardware. Using a realistic deployment of physical IoT devices, it is demonstrated that these approaches can reach satisfactory levels of performance.</p>

National Data for Monitoring and Evaluating Racial and Ethnic Health Inequities: Where Do We Go From Here?

2006 ◽  
Vol 33 (4) ◽  
pp. 470-487 ◽  
Author(s):  
Derek M. Griffith ◽  
Ernest Moy ◽  
Thomas M. Reischl ◽  
Elizabeth Dayton
Keyword(s):  
Health Education ◽  
Monitoring And Evaluation ◽  
Public Health Education ◽  
Health Inequities ◽  
Current Data ◽  
Effective Strategies ◽  
Key Aspects ◽  
Health Agenda

The elimination of racial and ethnic health inequities has become a central focus of health education and the national health agenda. The documentation of an increasing gap in life expectancy and other health outcomes suggests the need for more effective strategies to eliminate health inequities, which can be informed by better monitoring and evaluation data. Although the sophistication and volume of health data available have increased dramatically in recent years, this article examines the quality of the current data collected to achieve the goal of eliminating racial and ethnic health inequities. This article explores several key aspects of data to inform addressing inequities including terminology, the role of data, and explanations of the problem. The authors conclude with recommendations for refining data collection to facilitate the elimination of racial and ethnic health inequities and suggest how the Society for Public Health Education can become a more central figure in our national efforts

Knowing your way around ‘the big C’ in veterinary practice

2020 ◽  
Vol 11 (2) ◽  
pp. 88-95
Author(s):  
Mairead Currie
Keyword(s):  
Gold Standard ◽  
Paraneoplastic Syndromes ◽  
Practice Setting ◽  
Limited Time ◽  
Standard Chemotherapy ◽  
Loved One ◽  
Veterinary Surgeons ◽  
Key Aspects

When people hear the word cancer in relation to a loved one, the wave of emotion that follows can be devastating. Due to the complexity of oncology, a suspected or confirmed diagnosis often leads to large volume of information detailing the next steps and possible options. Pets are no exception and when owners are required to make emotive decisions with limited time to deliberate, it is the responsibility of the veterinary surgeons and nurses to provide up-to-date knowledge, guiding them to make the best decision both for themselves and their pets. This article explores the prevalence of neoplasia and the role of the first-opinion practice in diagnosis and treatment of neoplasms in pets. It also looks at the recognition of paraneoplastic syndromes in cancer patients and the importance of implementing gold-standard chemotherapy protocols. Understanding key aspects of the most common neoplasms in dogs and cats and their potential treatments helps to manage owner expectation in the practice setting. However, the ability to empathise and convey the importance of quality of life is also fundamental when supporting an owner and their animal through their cancer journey.

scholarly journals MACRO PHOTOGRAMMETRY IN INVENTORY OF HISTORICAL ENGRAVINGS AT THE ROYAL CASTLE IN WARSAW

2019 ◽  
Vol XLII-2/W9 ◽  
pp. 795-800
Author(s):  
D. Zawieska ◽  
J. Markiewicz ◽  
M. Łuba
Keyword(s):  
Past History ◽  
The Past ◽  
Orientation Process ◽  
Measuring Techniques ◽  
Historical Objects ◽  
Key Aspects ◽  
The Impact ◽  
Selection Of

<p><strong>Abstract.</strong> In the community historical objects play the role of witnesses of the past history. This creates an obligation to preserve and reconstruct them for future generations. Photogrammetric methods have been applied for those purposes for many years. In the process of development of inventory documentation, the key aspects related to the selection of appropriate measuring methods for particular objects and the creation of appropriate working conditions. At present, digital measuring techniques allow developing 3D photogrammetric documentation which is particularly valuable both, for conservators of historical objects, as well as for creating virtual museums. Particular attention should be paid to the utilisation of macro photography for that purpose which allows for recreating small fragments of historical details. The objective of this paper is to present possible use of macro photography for inventory of historical patterns engraved in brick walls of one of the cellars of the Royal Castle in Warsaw (Poland); they are called engravings or house marks. The cellar walls were made of bricks (20<span class="thinspace"></span>&amp;times;<span class="thinspace"></span>10<span class="thinspace"></span>cm) on the stone foundations, where a prison was located in the 17th century. Prisoners left their drawings of signs and crests. Bricks are destroyed, some of them are moss-grown, so many engravings are hardly visible and their depths vary between 3 and 5<span class="thinspace"></span>mm. The Canon 5D Mark II camera with the 50 mm macro lens was used to inventory engravings together with the shadow-free flash, mounted on the lens and a special frame with bolts, being the photogrammetric control network. To ensure the high quality of the 3D model, a network of photographs were acquired from two different distances; they were processed with the use of SfM/MVS algorithms implemented in Agisoft PhotoScan software. The aim of this paper is to discusses the impact of selection of control points on the accuracy of the orientation process, the impact of the point cloud density on correct projection of the digital surface, the influence of the DSM resolution on details of projection of shapes and selection of orthorectification and mosaicking parameters on the accuracy of orthoimage generation.</p>

Participation of social movements in the innovative development of the population’s life safety system

2020 ◽  
Vol 22 (2) ◽  
pp. 16-21
Author(s):  
VLADIMIR А. PUCHKOV ◽  
Keyword(s):  
Social Movements ◽  
Large Scale ◽  
Practical Experience ◽  
Safety System ◽  
The State ◽  
Life Safety ◽  
Russian Society ◽  
Key Aspects

The article analyzes the promising directions of development of social movements to support the innovative evolution of the population’s life safety system. The key aspects of the activities of veterans organizations aimed at the transfer of life and professional experience are considered. The assessment of practical experience and prospects of joint actions of volunteers in areas of large-scale disasters with the use of the latest innovative technologies is carried out. The role of social movements in the implementation of modern approaches in the education of younger generations, increasing the involvement of all segments of Russian society in the formation of a culture of life safety and improving the new quality of socio-economic development of the country’s regions is studied. Based on his own practical experience, the author comes to the conclusion about the absolute effectiveness of cooperation between the state and public organizations, involving volunteers in ensuring the safety of life. The analysis of the necessary measures on the part of the state to ensure full cooperation with volunteer movements is carried out, and a set of measures to achieve these goals is proposed. Creation of stimulating conditions for public voluntary fire protection associations at the level of the Russian Federation’s regions as a unique public-rescue institution is noted.

Review of the Role of the Internet of Things (IoT) on the Consumer Market

2021 ◽  
pp. 180-198
Author(s):  
Yong Kyu Lee
Keyword(s):  
Internet Of Things ◽  
Wearable Devices ◽  
The Internet ◽  
Consumer Market ◽  
Daily Lives ◽  
Information And Communication ◽  
Iot Devices ◽  
The Internet Of Things

This chapter reviews the internet of things (IoT) as a key component of a smart city and how it is applied to consumers' daily lives and business. The IoT is a part of information and communication technology (ICT) and is considered a powerful means to improve consumers' quality of life. The “thing” could be any object which has internet capability, such as wearable devices and smart TVs/phones/speakers. Several studies have identified driving factors that have led consumers to adopting them, but also concerns of consumers' resistance to IoT devices. The three major fields of application of IoT technologies were selected to review the role of the IoT in consumers' daily lives and business.

scholarly journals Optimizing and Load Balancing for Flash Crowd to Improve Quality of Service in Content Delivery Network

2019 ◽  
Vol 8 (11) ◽  
pp. 2568-2574
Keyword(s):  
Quality Of Service ◽  
Load Balancing ◽  
Content Delivery ◽  
End Users ◽  
Utility Computing ◽  
Content Delivery Network ◽  
Internet Service ◽  
Flash Crowd ◽  
Delivery Network

The online access has been increasing rapidly with the digitization of information, cheaper Internet service and affordable devices to access the Internet. This entails for not only handling increasing number of web requests but also meeting Quality of Service (QoS) requirements of end-users. Content Delivery Network (CDN) system is used to make better the performance of origin server by storing the popular contents on surrogate servers. The contents are disseminated to the web users through surrogate servers. The performance of CDN system relies on the selection of appropriate surrogate server to satisfy end-users’ requests. The proposed method named Load Balancing using Neighbors and Utility Computing (LBNUC) takes into account requests arrival rate, load on surrogate servers, end-users’ changing demand and capacity of surrogate servers. The aim is efficient utilization of CDN resources to minimize the time required to serve end-users requests and the cost of servicing requests. This method is also effective in handling of flash crowd situation by monitoring request rate. It handles this situation with support from neighbor surrogate servers and arranging additional resources, if required, through utility computing to meet QoS requirement of end-users.

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