Neural Adaptive Admission Control Framework: SLA-driven action termination for real-time application service management

Although most modern cloud-based enterprise systems, or operating systems, do not commonly allow configurable/automatic termination of processes, tasks or actions, it is common practice for systems administrators to manually terminate, or stop, tasks or actions at any level of the system. The paper investigates the potential of automatic adaptive control with action termination as a method for adapting the system to more appropriate conditions in environments with established goals for both system’s performance and economics. A machine-learning driven control mechanism, employing neural networks, is derived and applied within data-intensive systems. Control policies that have been designed following this approach are evaluated under different load patterns and service level requirements. The experimental results demonstrate performance characteristics and benefits as well as implications of termination control when applied to different action types with distinct run-time characteristics. An automatic termination approach may be eminently suitable for systems with harsh execution time Service Level Agreements, or systems running under conditions of hard pressure on power supply or other constraints. The proposed control mechanisms can be combined with other available toolkits to support deployment of autonomous controllers in high-dimensional enterprise information systems

An evaluation tool kit of air quality micro-sensing units.

Recent developments in sensory and communication technologies have made the development of portable air-quality (AQ) micro-sensing units (MSUs) feasible. These MSUs allow AQ measurements in many new applications, such as ambulatory exposure analyses and citizen science. Typically, the performance of these devices is assessed using the mean error or correlation coefficients with respect to a laboratory equipment. However, these criteria do not represent how such sensors perform outside of laboratory conditions in large-scale field applications, and do not cover all aspects of possible differences in performance between the sensor-based and standardized equipment, or changes in performance over time. This paper presents a comprehensive Sensor Evaluation Toolbox (SET) for evaluating AQ MSUs by a range of criteria, to better assess their performance in varied applications and environments. Within the SET are included four new schemes for evaluating sensors' capability to: locate pollution sources; represent the pollution level on a coarse scale; capture the high temporal variability of the observed pollutant and their reliability. Each of the evaluation criteria allows for assessing sensors' performance in a different way, together constituting a holistic evaluation of the suitability and usability of the sensors in a wide range of applications. Application of the SET on measurements acquired by 25 MSUs deployed in eight cities across Europe showed that the suggested schemes facilitates a comprehensive cross platform analysis that can be used to determine and compare the sensors' performance. The SET was implemented in R and the code is available on the first author's website.CITI-SENSE, initiated in October 2012, is a four year Collaborative Project partly funded by the EU FP7-ENV-2012 under grant agreement 308524

Pediatric tooth extractions under sedoanalgesia

The present study aims to evaluate intravenous ketamine and inhalation sedation in children, their unwanted side-effects and surgeon satisfaction

The Comparative Advantages in Vegetable Export of Turkey

Karşılaştırmalı üstünlüklerin ölçümü amacıyla Liesner (1958) tarafından ortaya atılan, Balassa (1965) tarafından işlevsel hale getirilen "Açıklanmış Karşılaştırmalı Üstünlük (RCA) katsayıları", ülkenin belli bir sektör ihracatının toplam ihracatına oranının, aynı sektörün dünyadaki ihracatının dünya toplam ihracatına oranı şeklinde hesaplanmaktadır. Balassa Endeksi şeklinde de ifade edilebilen RCA katsayıları; ülkenin bir sektördeki yurtiçi uzmanlaşmasını, dünyanın uzmanlaşmasıyla karşılaştırır. Katsayının 1'den büyük olması; söz konusu sektörde ülkenin açıklanmış karşılaştırmalı üstünlüğe sahip olduğunu ve uzmanlaştığını, 1'den küçük olması ise, açıklanmış karşılaştırmalı dezavantaja sahip olduğunu ve uzmanlaşmadığını gösterir. Çalışmada, 1993-2012 yılları arasında Türkiye'nin dünya piyasalarında sebze ihracatındaki karşılaştırmalı üstünlüklerinin belirlenmesi amacıyla SITC Rev. 3, 4. seviye için karşılaştırmalı üstünlük katsayıları hesaplanmıştır. Buna göre Türkiye, sebze ve alt grupları ihracatında global piyasalarda önemli bir karşılaştırmalı üstünlüğe sahiptir. Bununla birlikte, sebze alt gruplarının büyük çoğunluğunun ihracatında karşılaştırmalı üstünlük olmasına rağmen, son yıllardaki üstünlükler nispi anlamda azalmaktadırThe index of revealed comparative advantages (RCA) was first introduced by Liesner (1958) and operationalized by Balassa (1965) in order to measure comparative advantages. The RCA index of a country for a product is often measured by the product’s share in the country’s exports in relation to its share in world trade. The index of RCA, also called Balassa Index, is used to measure relative importance of a product in a country’s export composition relative to that product’s relative importance in world trade. If the index exceeds 1 the country is said to have a comparative advantage in the sector in question, since it is more important for the country’s exports than for the exports of the reference countries and vice versa. In this study, between the years 1993-2012, the indices of revealed comparative advantages indices of Turkey are calculated on SITC Revision 3, 4 digit codes in order to determine comparative advantages in vegetable export in World markets. Accordingly, Turkey has a significant comparative advantage in the export of vegetable and its sub-groups in global markets. However, although comparative advantage in the export of the majority of vegetable sub-groups, the advantages have relatively been decreasing in recent year

Importance of angiogenesis in colorectal adenocarcinomas as a prognostic parameter

WOS: 000249454600596