Oscillations in self-aware networks

2008 ◽  
Vol 464 (2096) ◽  
pp. 2169-2185 ◽  
Author(s):  
Michael Gellman
Keyword(s):  
Adaptive Routing ◽  
Test Bed ◽  
Time Dynamic ◽  
Multiple Flows ◽  
Pros And Cons ◽  
Improved Performance ◽  
Store And Forward ◽  
Packet Flows ◽  
Distributed Reinforcement

Adaptive routing is once again of interest owing to the possibility to couple online probing in networks with real-time dynamic and distributed control of paths and flows. Wireless networks, with their rapidly changing network conditions also create a need to revisit this issue. This paper uses measurements in a wired adaptive network test bed, the cognitive packet network (CPN), to investigate the pros and cons of adaptive routing. CPN routes packet flows through a store and forward network according to their quality of service (QoS) needs through an online distributed reinforcement learning mechanism. This paper investigates routing oscillations that occur due to the interaction of multiple flows and studies their effect on QoS in the context of CPN. Our results indicate that routing oscillations can be easily controlled by randomizing the route switching, and that from an overall QoS viewpoint increased switching can also lead to improved performance.

scholarly journals Teledermatology: Comparison of Store-and-Forward Versus Live Interactive Video Conferencing (Preprint)

2018 ◽  
Author(s):  
Titus Josef Brinker ◽  
Achim Hekler ◽  
Christof von Kalle ◽  
Dirk Schadendorf ◽  
Stefan Esser ◽  
...  
Keyword(s):  
Interactive Video ◽  
Video Conferencing ◽  
Wait Times ◽  
Patient Access ◽  
Clinical Perspective ◽  
Technical Requirements ◽  
Number Of Patients ◽  
Pros And Cons ◽  
Store And Forward

UNSTRUCTURED A decreasing number of dermatologists and an increasing number of patients in Western countries have led to a relative lack of clinicians providing expert dermatologic care. This, in turn, has prolonged wait times for patients to be examined, putting them at risk. Store-and-forward teledermatology improves patient access to dermatologists through asynchronous consultations, reducing wait times to obtain a consultation. However, live video conferencing as a synchronous service is also frequently used by practitioners because it allows immediate interaction between patient and physician. This raises the question of which of the two approaches is superior in terms of quality of care and convenience. There are pros and cons for each in terms of technical requirements and features. This viewpoint compares the two techniques based on a literature review and a clinical perspective to help dermatologists assess the value of teledermatology and determine which techniques would be valuable in their practice.

Versorgungsqualität und Praktikabilität in der Teledermatologie

2019 ◽  
Vol 7 (2) ◽  
pp. 73-74
Author(s):  
Natalia Kirsten
Keyword(s):  
Video Conferencing ◽  
Wait Times ◽  
Patient Access ◽  
Clinical Perspective ◽  
Relative Lack ◽  
Technical Requirements ◽  
Number Of Patients ◽  
Pros And Cons ◽  
Store And Forward

A decreasing number of dermatologists and an increasing number of patients in Western countries have led to a relative lack of clinicians providing expert dermatologic care. This, in turn, has prolonged wait times for patients to be examined, putting them at risk. Store-and-forward teledermatology improves patient access to dermatologists through asynchronous consultations, reducing wait times to obtain a consultation. However, live video conferencing as a synchronous service is also frequently used by practitioners because it allows immediate interaction between patient and physician. This raises the question of which of the two approaches is superior in terms of quality of care and convenience. There are pros and cons for each in terms of technical requirements and features. This viewpoint compares the two techniques based on a literature review and a clinical perspective to help dermatologists assess the value of teledermatology and determine which techniques would be valuable in their practice.

scholarly journals AI-based localization and classification of skin disease with erythema

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Ha Min Son ◽  
Wooho Jeon ◽  
Jinhyun Kim ◽  
Chan Yeong Heo ◽  
Hye Jin Yoon ◽  
...  
Keyword(s):  
Neural Network ◽  
Skin Diseases ◽  
Classification Model ◽  
Screening Tests ◽  
Sensitivity Score ◽  
Common Skin ◽  
Novel Method ◽  
Improved Performance ◽  
High Level

AbstractAlthough computer-aided diagnosis (CAD) is used to improve the quality of diagnosis in various medical fields such as mammography and colonography, it is not used in dermatology, where noninvasive screening tests are performed only with the naked eye, and avoidable inaccuracies may exist. This study shows that CAD may also be a viable option in dermatology by presenting a novel method to sequentially combine accurate segmentation and classification models. Given an image of the skin, we decompose the image to normalize and extract high-level features. Using a neural network-based segmentation model to create a segmented map of the image, we then cluster sections of abnormal skin and pass this information to a classification model. We classify each cluster into different common skin diseases using another neural network model. Our segmentation model achieves better performance compared to previous studies, and also achieves a near-perfect sensitivity score in unfavorable conditions. Our classification model is more accurate than a baseline model trained without segmentation, while also being able to classify multiple diseases within a single image. This improved performance may be sufficient to use CAD in the field of dermatology.

Regulating Proxy Advisors Through Transparency: Pros and Cons of the EU Approach

2017 ◽  
Vol 14 (1) ◽  
pp. 1-36 ◽  
Author(s):  
Gaia Balp
Keyword(s):  
Status Quo ◽  
Legislative Process ◽  
European Regulation ◽  
The Us ◽  
The Status ◽  
Pros And Cons ◽  
Proxy Advisors ◽  
Legal Constraints ◽  
The Eu

This article outlines potential pros and cons of a future European regulation of proxy advisory firms, as set forth in the Commission’s Proposal for a Directive amending Directive 2007/36/EC. After summarizing criticisms concerning the proxy advisory industry, and findings regarding its de facto influence on investors’ voting conduct both in the US and in the European context, the article adverts to why the power of proxy advisors appears to be overestimated. Uncertainty on the status quo of the industry’s actual impact on key decisions in listed companies, as well as costs associated with a regulation, need to be considered for assessing the suitability of the rules drafted to ensure adequate levels of independence and quality of voting recommendations. While transparency rules may be preferred to stricter legal constraints or requirements in a first stage, possible shortcomings of the Draft Directive exist that may undermine its effectiveness. Analyzing the amendments to the Proposal adopted by the European Parliament, and the Council’s Presidency compromise text, may suggest a preferable approach as regards single rules still making their way through the European legislative process.

Research on the Reliability of Box for Gear Test Bed

2011 ◽  
Vol 121-126 ◽  
pp. 1744-1748
Author(s):  
Xiang Yang Jin ◽  
Tie Feng Zhang ◽  
Li Li Zhao ◽  
He Teng Wang ◽  
Xiang Yi Guan
Keyword(s):  
Power Flow ◽  
Dynamic Performance ◽  
Three Dimensional ◽  
Design Parameters ◽  
The Finite Element Method ◽  
Test Bed ◽  
Kinematics Simulation ◽  
Beveloid Gears ◽  
Overall Performance

To determine the efficiency, load-bearing capacity and fatigue life of beveloid gears with intersecting axes, we design a mechanical gear test bed with closed power flow. To test the quality of its structure and predict its overall performance, we establish a three-dimensional solid model for various components based on the design parameters and adopt the technology of virtual prototyping simulation to conduct kinematics simulation on it. Then observe and verify the interactive kinematic situation of each component. Moreover, the finite element method is also utilized to carry out structural mechanics and dynamics analysis on some key components. The results indicate that the test bed can achieve the desired functionality, and the static and dynamic performance of some key components can also satisfy us.

scholarly journals A Secured Load Mitigation and Distribution Scheme for Securing SIP Server

2017 ◽  
Vol 2017 ◽  
pp. 1-14 ◽  
Author(s):  
Vennila Ganesan ◽  
Manikandan MSK
Keyword(s):  
Load Distribution ◽  
Test Bed ◽  
Heavy Load ◽  
Server Selection ◽  
Distribution Scheme ◽  
The Mean ◽  
Sip Server ◽  
Second Tier ◽  
Termination Time

Managing the performance of the Session Initiation Protocol (SIP) server under heavy load conditions is a critical task in a Voice over Internet Protocol (VoIP) network. In this paper, a two-tier model is proposed for the security, load mitigation, and distribution issues of the SIP server. In the first tier, the proposed handler segregates and drops the malicious traffic. The second tier provides a uniform load of distribution, using the least session termination time (LSTT) algorithm. Besides, the mean session termination time is minimized by reducing the waiting time of the SIP messages. Efficiency of the LSTT algorithm is evaluated through the experimental test bed by considering with and without a handler. The experimental results establish that the proposed two-tier model improves the throughput and the CPU utilization. It also reduces the response time and error rate while preserving the quality of multimedia session delivery. This two-tier model provides robust security, dynamic load distribution, appropriate server selection, and session synchronization.

The Muscle Myogram as a Control Signal for Use in Powered Limb Orthosis

2006 ◽  
Author(s):  
M. Antonelli ◽  
P. Beomonte Zobel ◽  
J. Giacomin
Keyword(s):  
Lower Limb ◽  
Assistive Device ◽  
Sitting Position ◽  
Test Bed ◽  
Disabled People ◽  
Test Protocol ◽  
Prosthetic Devices ◽  
Specific Device ◽  
Definition Of

The choice of the command technique to be used in orthotic and prosthetic devices is very critical for the acceptance and, finally, the success of the specific device. Many variables influence this choice: the general characteristics of the signal, the quality of the correlation between signal and specific actions of the user and the algorithm that is derived, the acceptance of the technique, as applied to the specific device, from the user, etc. Among the command techniques, MMG signal seems to be promising to command an assistive device. In this paper a test protocol for studying MMG signal, to investigate the prospective for its use as a command technique of a powered lower limb orthosis capable of raising elderly and disabled people from the sitting position, is proposed. The definition of the test protocol, including the description of the test bed and the sensors application, is presented. Finally, the experimental results are showed and discussed.

scholarly journals KOMITE AUDIT UNTUK MENINGKATKAN TATA KELOLA PEMERINTAHAN DAN PENYAJIAN LAPORAN KEUANGAN DALAM RANGKA PENINGKATAN KINERJA PEMERINTAH DAERAH (STUDI KASUS PEMERINTAH DAERAH KABUPATEN BELITUNG)

2014 ◽  
Vol 1 (1) ◽  
pp. 1
Author(s):  
Alexander Ikhsan ◽  
Antar MT Sianturi
Keyword(s):  
Local Government ◽  
Audit Committee ◽  
Good Governance ◽  
Financial Statements ◽  
Financial Statement ◽  
Audit Committees ◽  
Government Performance ◽  
Qualitative Descriptive ◽  
Improved Performance

This research is a qualitative descriptive study entitled “Audit Committee to Improve Governance and Financial Statement in order to Improved Performance of Local Government (Case Study of District Government Belitung)”. The purpose of this study was to determine how much influence of the audit committee in the local government in order to improve governance and the quality of local government financial statement, and its associations with local government performance. Measuring the importance of the audit committee, which was measured using interviews with 15 respondents who have an influence on governance in the Belitung District Based on these results, we can conclude that audit committees in local government will improve the governance and the quality of local government financial statements presentation. And from the results of this study also found that the good governance and quality of local government financial statements presentation will improve the overall local government performance

scholarly journals Medical Treatment for Endometriosis: Tolerability, Quality of Life and Adherence

2021 ◽  
Vol 2 ◽  
Author(s):  
Giussy Barbara ◽  
Laura Buggio ◽  
Federica Facchin ◽  
Paolo Vercellini
Keyword(s):  
Quality Of Life ◽  
Side Effects ◽  
Gnrh Agonist ◽  
Negative Impact ◽  
Economic Costs ◽  
Gnrh Antagonists ◽  
Psychological Suffering ◽  
Pros And Cons ◽  
Women’S Preferences

Endometriosis is associated with painful symptoms, infertility, sexological difficulties, and psychological suffering. All these symptoms have a negative impact on the overall quality of life of women with the disease, with significant personal, social and economic costs. Several medical options are available to manage symptomatic endometriosis. The pharmacological treatment for endometriosis-related pain may be necessary for decades, or at least until there is a desire for pregnancy or physiologic menopause occurs. In this perspective, clinicians should consider not only the efficacy, but also side effects, tolerability, and costs, along with women's preferences toward different treatments. In this mini-review, we analyzed the pros and cons of the available drugs for the medical therapy of endometriosis, such as estrogen-progestins, progestins, GnRH agonist and GnRH antagonists.

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