Alpha MAML: Adaptive Model-Agnostic Meta-Learning

Model-agnostic meta-learning (MAML) is a meta-learning technique to train a model on a multitude of learning tasks in a way that primes the model for few-shot learning of new tasks. The MAML algorithm performs well on few-shot learning problems in classification, regression, and fine-tuning of policy gradients in reinforcement learning, but comes with the need for costly hyperparameter tuning for training stability. We address this shortcoming by introducing an extension to MAML, called Alpha MAML, to incorporate an online hyperparameter adaptation scheme that eliminates the need to tune meta-learning and learning rates. Our results with the Omniglot database demonstrate a substantial reduction in the need to tune MAML training hyperparameters and improvement to training stability with less sensitivity to hyperparameter choice.Comment: 6th ICML Workshop on Automated Machine Learning (2019

Breast Refusal and Maternal and Perinatal Risk Factors in the Newborn Period From a Single Center in Şanlıurfa

The many benefits of breastfeeding for both the mother and infant are well known. Therefore, the conditions that influence breastfeeding are important. Therefore, we investigated the frequency of breast refusal in the newborn period and the associated maternal perinatal risk factors at an Şan Med Hospital in Şanlurfa. A total of 407 mother-infant pairs fulfilling the study’s inclusion criteria were enrolled. The percentage of breast refusal in infants was higher in young maternal and paternal age (<25 years), being the first child, and active or passive smoking exposure of the mother during pregnancy. The percentage of breast rejection was lower when the baby started to be breastfed within the first hour of birth. The percentages of infants experiencing breast rejection were found to be significantly higher in the absence of skin-to-skin contact following delivery and in the presence of prelactal feeding at the first 3 days than in their counterparts. The rate of breast rejection was found to be higher in infants fed with mixed or formula compared with infants fed only breast milk during the last 24 h. Multiple logistic regression analysis determined that the risk of breast rejection was higher in maternal smoking/exposure during pregnancy [adjusted odds ratio (aOR): 3.19, 95% confidence interval (CI): 1.01-10.06] and delayed initiation of breastfeeding after the first hour (aOR: 3.45, 95% CI: 1.09-11.0). Being in a smoke-free environment for pregnant women should be supported by an indoor smoking ban, and early initiation of breastfeeding in the first hour after birth should be encouraged

Delayed Onset of Lactation and Accompanying Perinatal Factors in Mothers Who Delivered at the End of A Normal Term Pregnancy

ABSTRACT Objective: This study aimed to investigate the frequency of delayed onset of lactation and accompanying perinatal factors in mothers who gave birth after a normal gestational course without any health problems. Methods: The study sample consisted of infants and their mothers who had given birth at Şanlıurfa Şan Med Hospital and then applied to the Pediatrics Health and Diseases Polyclinic for health check-ups within 3-15 days postpartum between June 2017 and September 2017. The data were analyzed with IBM SPSS Statistics 22.0. Results: Delayed lactation was reported by 30.6% of mothers, being more common among primiparous mothers and those who delivered by cesarean section (p&lt;0.001 and p=0.044, respectively). The rate of delayed lactation was lower among those who had skin-to-skin contact than those who did not (p=0.010), and among those who started breastfeeding in the first hour than those who did not (p&lt;0.001). The rate of delayed lactation was higher if water or food other than breast milk was given on the first day or in the following period (p&lt;0.001). Conclusion: To reduce the risk of delayed lactation, there is a need for more personalized breastfeeding counseling and interventions for mothers who have given birth for the first time. Skin-to-skin contact should be ensured in all deliveries, and unnecessary cesarean deliveries and prelacteal feeding should be avoided. Keywords: Breastfeeding, cesarean section, delayed lactatio

Multifont Ottoman character recognition

Ottoman characters from three different fonts are used character recognition problem, broadly speaking, is transferring a page that contain symbols to the computer and matching these symbols with previously known or recognized symbols after extraction the features of these symbols via appropriate preprocessing methods. Because of silent features of the characters, implementing an Ottoman character recognition system is a difficult work. Different researchers have done lots of works for years to develop systems that would recognize Latin characters. Although almost one million people use Ottoman characters, great deal of whom has different native languages, the number of studies on this field is insufficient. In this study 28 different machine-printed to train the Artificial Neural Network and a %95 classification accuracy for the characters in these fonts and a %70 classification accuracy for a different font has been found. © 2000 IEEE

Histološka i imunohistokemijska svojstva metastatskog karcinosarkoma mliječne žlijezde u kuje - prikaz slučaja

A carcinosarcoma is a tumor composed of cells morphologically resembling both malignant epithelial and mesenchymal components. An 11-year-old, female, mixed-breed terrier was referred to the clinic with complaints of anorexia, vomiting and exercise intolerance. Clinically, tumoral masses were seen in the mammary glands. During necropsy, multilobulated calcified masses were observed in several visceral organs (the liver, kidneys, lungs, small intestines, lymph nodes and thyroid) and both right and left (3rd and 4th) mammary glands. Immunohistochemically, Thyroglobulin, SMA, TTF-1, S100, CD34, and p53 were negative in both epithelial and mesenchymal areas, however, Ki-67 showed high proliferation, especially in the mesenchymal areas. While the positivity of vimentin expression was high in the mesenchymal component of the tumor, the positivity of cytokeratin (CK7 and CK19) expressions was high in the epithelial component of the tumor. In the case of a carcinosarcoma, there is a probability that not only the carcinomatous part, but also the sarcomatous part will metastasize. Despite being uncommon, canine carcinosarcomas should always be considered in the differential diagnosis of mixed mammary tumors, if they include both components. There have not been many previous studies dealing with the metastasis of a mammary carcinosarcoma in dogs as an aggressive tumor. Therefore, we consider this report a worthy contribution and have defined the multiple organ metastasis of a mammary carcinosarcoma.Karcinosarkom je tumor sastavljen od stanica koje morfološki nalikuju i na maligne epitelne i na mezenhimne komponente. Ženka stara 11 godina, mješanka u tipu terijera, primljena je na pregled zbog anoreksije, povraćanja i nepodnošenja tjelesnog napora. Klinički, uočena je tumorska masa u mliječnim žlijezdama. Pri obdukciji su uočene multilobulirane kalcificirane tvrobe u nekoliko visceralnih organa (jetra, bubreg, pluća, tanko crijevo, limfni čvorovi, štitnjača) te u desnoj i lijevoj (trećoj i četvrtoj) mliječnoj žlijezdi. Imunohistokemijski su tireoglobulin, SMA, TTF-1, S100, CD34 i p53 bili negativni i u epitelnim i mezenhimnim tkivima, međutim Ki-67 pokazao je visoku proliferaciju, osobito u mezenhimnom području. Dok je pozitivnost ekspresije vimentina bila visoka u mezenhimnoj komponenti tumora, pozitivnost ekspresije citokeratina (CK7 i CK19) bila je visoka u epitelnoj komponenti tumora. U slučaju karcinosarkoma moguće je da ne metastaziraju samo karcinomatozni dijelovi nego također i sarkomatozni. Premda je neuobičajen, pseći karcinosarkom trebalo bi uzeti u obzir kao diferencijalnu dijagnozu kod miješanih tumora mliječne žlijezde, ako sadržavaju obje komponente. U dosadašnjim istraživanjima nema mnogo radova o metastazama karcinosarkoma mliječne žlijezde kuja, posebno u slučajevima gdje je to agresivan tumor. Stoga smatramo da je ovaj prikaz slučaja vrijedan doprinos kojim su utvrđene višestruke metastaze karcinosarkoma mliječne žlijezde na različitim organima

1.Uluslararası Kütüphane ve Bilgibilim Felsefesi Sempozyumu 3-5 Eylül 2014, Kastamonu, Türkiye: Değerlendirme ve Öneriler

This article includes abstracts, critiques of a part and general analyses of proceedings presented at the 1st International Symposium on Philosophy of Library and Information Science Ethics organized on September 3-5, 2014 in Kastamonu University with the main theme of “Ethics: Theory and Practice”.Bu yazı, 3-5 Eylül 2014 tarihleri arasında Kastamonu Üniversitesi’nde yapılan “Etik: Kuram ve Uygulama” ana konulu 1. Uluslararası Kütüphane ve Bilgibilim Felsefesi Sempozyumu’nda sunulan bildirilerin kısa içerikleri, bir bölümünün eleştirisi ve genel bir değerlendirmesini kapsamaktadır