Image based visual servoing using algebraic curves applied to shape alignment

Visual servoing schemes generally employ various image features (points, lines, moments etc.) in their control formulation. This paper presents a novel method for using boundary information in visual servoing. Object boundaries are modeled by algebraic equations and decomposed as a unique sum of product of lines. We propose that these lines can be used to extract useful features for visual servoing purposes. In this paper, intersection of these lines are used as point features in visual servoing. Simulations are performed with a 6 DOF Puma 560 robot using Matlab Robotics Toolbox for the alignment of a free-form object. Also, experiments are realized with a 2 DOF SCARA direct drive robot. Both simulation and experimental results are quite promising and show potential of our new method

Bulanık mantıklı sınır tabakası kalınlığı ayarlaması ile kayan kipli robot kontrolü

Kontrol sinyalindeki çatırtı kayan kipli kontrol uygulamalarında önemli bir sorundur. Sınır tabakası yaklaşımı, çatırtıyı önlemek için, literatürdeki birçok düzenlemeden biridir. Bu yöntemde, süreksiz kayan kipli kontrol yerine, yüksek kazanımlı geri besleme control yasası kullanılmıştır. Sınır tabaka kalınlığı önemli bir tasarım parametresidir. Bu bildiri, sistemin çatırtı olmadan en iyi performansı göstermesi için, sınır tabaka kalınlığını çevrimiçi bir bulanık mantık kullanarak ayarlama yöntemini önermektedir. Bu metod kontrol sinyalindeki çatırtının ölçümünü gerektirmektedir. Bildiri, iki serbestlik dereceli, doğrudan tahrikli bir robot kolu üzerinde yapılan deneyleri de içermektedir

Youth Residing in Out-of-Home Placements: Examination of Behavior and Academic Achievement

A data set from the National Survey of Child and Adolescent Well-Being II was analyzed to determine if significant relationships existed between participants’ internalizing and externalizing scores on the Child Behavior Checklist (CBCL) and their (a) scores on assessments of academic achievement and (b) behavior problems leading to suspension or expulsion. Results indicated that participants’ scores on the CBCL were not predictive of their academic achievement but were predictive of their numbers of behavior problems leading to suspension or expulsion

Bulanık Parametre Ayarlamalı Görüntü Destekli Kuvvet Kontrolü

Görüntü ve kuvvet sensörleri, robot kontrolünde kullanılabilecek zengin içerikli veriler sunmaktadırlar. Bu verilerin birlestirilerek kullanılması robotların bir çok karmasık görevde basarımlarını arttırabilir. Bu bildiri öncelikle özel bir robot konum ve kuvvet kontrol problemini tanımlamaktadir. Bu problem sabit büyüklükteki bir referans kuvvetinin, dönmeye serbest bırakılmıs bir is parçası üzerine dik yönde uygulanmasını içerir. Bu problemin çözümünde, ilk olarak görüntü tabanlı hibrit konum/kuvvet kontrol yöntemi denenmistir. Bu yöntemde sabit kazanç parametrelerinin kullanımasından kaynaklanan güçlüklere dikkat çekilmis ve parametrelerinin ayarlanmasında bulanık mantık kullanılan hibrit yapıda bir kontrol sistemi önerilmistir. Sabit parametreli ve bulanık mantık parametre ayarlamalı kontrol yöntemleri doğrudan tahrikli SCARA tipindeki bir robot üzerinde denenmis ve sonuçlar karsılastırılmıstır

Modeling the Effectiveness of Hourly Direct-Response Radio Commercials

The authors investigate the impact of direct-response commercials on incoming calls at a national call center. To this end, the authors analyze the data of a fast service for repairs of (parts of) a durable consumption good in Flanders, Belgium. The authors have access to data at the 15 minute interval covering 30 months in which 5172 radio commercials were broadcasted on six radio stations at various times of the day and at with differing commercial lengths. Their model is a two-level model, where the first-level estimates of the short-run and long-run effects are correlated with various aspects of the commercial is the second level. Their main conclusion is that GRPs are the key drivers of the effectiveness of commercials

Modeling the Effectiveness of Hourly Direct-Response Radio Commercials

The authors investigate the impact of direct-response commercials on incoming calls at a national call center. To this end, the authors analyze the data of a fast service for repairs of (parts of) a durable consumption good in Flanders, Belgium. The authors have access to data at the 15 minute interval covering 30 months in which 5172 radio commercials were broadcasted on six radio stations at various times of the day and at with differing commercial lengths. Their model is a two-level model, where the first-level estimates of the short-run and long-run effects are correlated with various aspects of the commercial is the second level. Their main conclusion is that GRPs are the key drivers of the effectiveness of commercials.HF5837;long-run elasticity;advertising response;short-run effects;advertising effectiveness;two-level model

Cyber-Bullying And Children’s Unmonitored Media Violence Exposure

With technological evolution, interpersonal communication is constantly advancing; as a result comes the more frequent unregulated access of children to cyber-space and media violence exposure (DePaolis, & Williford, 2015), whilst risking involvement to cyber-bullying (CB). CB is commonly defined as purposefully causing repetitively harm to others through electronic devices created for interpersonal communication (Rigby, 2002). Its main differentiation from traditional bullying is the perpetrator’s ability to anonymously and effortless harass multiple victims at any time and geographic location (Hemphill, Tollit, Kotevski & Heerde, 2015). Research (for example see Mishna, Cook, Gadalla, Daciuk & Solomon, 2010) has indicated CB rates of up to 49.5% for cyber-victimisation and 33.7% for cyber-perpetration. Students consider some of the most common CB ways as posting victims’ embarrassing/humiliating videos on video-hosting sites; creating profiles on social media to humiliate victims and posting/forwarding victims’ private information/images without permission (NHS, 2015)