Model kompanzasyonlu birinci derece istatistikleri ile i-vektörlerin gürbüzlüğünün artırılması

Speaker recognition systems achieved significant improvements over the last decade, especially due to the performance of the i-vectors. Despite the achievements, mismatch between training and test data affects the recognition performance considerably. In this paper, a solution is offered to increase robustness against additive noises by inserting model compensation techniques within the i-vector extraction scheme. For stationary noises, the model compensation techniques produce highly robust systems. Parallel Model Compensation and Vector Taylor Series are considered as state-of-the-art model compensation techniques. Applying these methods to the first order statistics, a noisy total variability space training is aimed, which will reduce the mismatch resulted by additive noises. All other parts of the conventional i-vector scheme remain unchanged, such as total variability matrix training, reducing the i-vector dimensionality, scoring the i-vectors. The proposed method was tested with four different noise types with several signal to noise ratios (SNR) from -6 dB to 18 dB with 6 dB steps. High reductions in equal error rates were achieved with both methods, even at the lowest SNR levels. On average, the proposed approach produced more than 50% relative reduction in equal error rate.Konuşmacı tanıma sistemleri özellikle i-vektörlerin performansı sebebiyle son on yılda önemli gelişmeler elde etmiştir. Bu gelişmelere rağmen eğitim ve test verileri arasındaki uyumsuzluk tanıma performansını önemli ölçüde etkilemektedir. Bu çalışmada, model kompanzasyon yöntemleri i-vektör çıkarımı şemasına eklenerek toplanabilir gürültülere karşı gürbüzlüğü artıracak bir çözüm sunulmaktadır. Durağan gürültüler için model kompanzasyon teknikleri oldukça gürbüz sistemler üretir. Paralel Model Kompanzasyonu ve Vektör Taylor Serileri en gelişmiş model kompanzasyon tekniklerinden kabul edilmektedir. Bu metotlar birinci dereceden istatistiklere uygulanarak toplanabilir gürültülerden kaynaklanan uyumsuzluğu azaltacak gürültülü tüm değişkenlik uzayı eğitimi amaçlanmıştır. Tüm değişkenlik matrisin eğitimi, i-vektör boyutunun azaltılması, i-vektörlerin puanlanması gibi geleneksel i-vektör şemasının diğer tüm parçaları değişmeden kalmaktadır. Önerilen yöntem, 6 dB’lik adımlarla -6 dB’den 18 dB’ye kadar çeşitli sinyal-gürültü oranlarına (SNR) sahip dört farklı gürültü tipi ile test edilmiştir. Her iki yöntemle de en düşük SNR seviyelerinde bile eşit hata oranlarında yüksek azalmalar elde edilmiştir. Önerilen yaklaşım eşik hata oranında ortalama olarak %50’den fazla göreceli azalma sağlamıştır

Elimination of Non-Novel Segments at Multi-Scale for Few-Shot Segmentation

Few-shot segmentation aims to devise a generalizing model that segments query images from unseen classes during training with the guidance of a few support images whose class tally with the class of the query. There exist two domain-specific problems mentioned in the previous works, namely spatial inconsistency and bias towards seen classes. Taking the former problem into account, our method compares the support feature map with the query feature map at multi scales to become scale-agnostic. As a solution to the latter problem, a supervised model, called as base learner, is trained on available classes to accurately identify pixels belonging to seen classes. Hence, subsequent meta learner has a chance to discard areas belonging to seen classes with the help of an ensemble learning model that coordinates meta learner with the base learner. We simultaneously address these two vital problems for the first time and achieve state-of-the-art performances on both PASCAL-5i and COCO-20i datasets.Comment: Accepted to WACV 202

Free vibrations of spatial frame structures: Analytical modelling and solution

This study analytically handles the three-dimensional free vibrations of spatial frames using the initial values method, considering the axial and shear deformations alongside rotary inertias, namely, torsional, in-plane bending and out-of-plane bending. To handle the spatial geometry, the direction cosine matrices are used. Validation is performed with three cases in total, one case available in the literature alongside two numerical examples that are solved analytically and compared to the finite element models. Excellent agreements are found between the analytical results and the results in the literature, as well as those obtained from the finite element models

The School Milk Project Conducted in Primary Schools and Parents’ Point of Views on The Issue

Aim:In this study, our objective was to find out the opinion of the parents, whose children participated in the school milk project program (SMP), and to determine the acceptability of this program in the society.Materials and Methods:Ultra-heat treated (UHT) milk (200ml) was distributed to 6,5 million students in the second half of the 2013-2014 school year by the ministry. This study was conducted to find out the opinion of the families of children, who participated in the SMP in Malkara / Tekirdağ. For this purpose, a questionnaire containing 13 questions was used.Results:The educational status of parents were as follows: 1.47% illiterate; 35.8% primary school graduates; 12.9% secondary school graduates; 28.7% high school graduates and 20.79% university graduates. A total of 73.16% of children have breakfast on a regular basis. Regarding the weekly milk consumption of children; 6.38% did not drink milk at all; 37.32% 1-3 days, 19.64% 4-6 days and 36.6% used to consume milk every day. 91.49% of parents were informed about SMP and 99.51% stated that they filled a permission form. 83.63% of parents believed that SMP was necessary and 16.37% believed that it was not necessary. 98.36% of parents gave a positive answer and 1.64% gave a negative answer to the question about the contribution of SMP to the growth of children. 66.78% of the participating parents believed and 33.22% did not believe that milk is protective against diseases in older ages.Conclusion:The School Milk Project gained families’ acceptance and contributes to the healthy and balanced nutrition of children from the low-income segment

Peripapillary retinal nerve fibre layer thickness in women with iron deficiency anaemia

WOS: 000349116500011PubMed: 25476798Objective To evaluate peripapillary retinal nerve fibre layer (RNFL) thickness in adult women with iron deficiency anaemia and healthy control subjects. Methods Women with iron deficiency anaemia and age- and sex-matched healthy control subjects were sequentially recruited and underwent detailed ophthalmic examination, including spectral-domain optical coherence tomography (OCT). Serum haemoglobin (Hb), iron and ferritin concentrations, total iron-binding capacity (TIBC) and mean corpuscular volume were determined. Results Peripapillary RNFL thicknesses in the nasal and inferior quadrants were significantly smaller in patients (n=40) than in controls (n=40). in the patient group, there were significant correlations between inferior quadrant RNFL thickness and Hb, and between nasal quadrant RNFL thickness and serum iron and ferritin concentrations, and TIBC. Conclusion Iron deficiency anaemia reduces RNFL thickness in adult women

Burkholderia cepacia complex bacteremia outbreaks among non-cystic fibrosis patients in the pediatric unit of a university hospital

Background. Burkholderia cepacia complex (Bcc) comprises multi-drug resistant, Gram-negative, motile, and aerobic bacteria. Bcc causes severe nosocomial infections particularly in patients with intravascular catheters and in those with cystic fibrosis. We studied a Bcc outbreak in non-cystic fibrosis patients. Methods. We analyzed data from six patients hospitalized at our center. Blood cultures identified as infectious were incubated onto 5% blood sheep agar, chocolate agar, and eosin methylene blue (EMB) agar. We examined possible sites that could be sources of infection at the clinic. We confirmed isolations with pulsed-field gel electrophoresis (PFGE) tests. Results. The first patient was hospitalized due to left renal agenesis, urinary tract infection, and renal failure. Bcc was isolated in blood cultures obtained due to high fever on the third day of hospitalization. We stopped new patient hospitalizations after detecting Bcc in blood cultures of other five patients. We did not detect further positive specimens obtained from other clinic and the patient rooms. PFGE patterns were similar in all clinical isolates of Bcc indicating that the outbreak had originated from the source. Conclusions. Bcc infection should be considered in cases of nosocomial outbreaks of multi-drug resistant organisms that require hospitalization at intensive care units. Control measures should be taken for prevention of nosocomial infections and required investigations should be done to detect the source of infection

İŞLETMELERİN İNKÜBATÖRÜ OLARAK REKABETÇİ ZEKÂNIN STRATEJİK ROLÜ

Rekabetçi Zekâ (RZ), bilgi odaklı hareket etmektedir. RZ, işletmenin amacına yönelik, güncel ve proaktif bilgiyi elde etmesini gerektirir. Böylece RZ, bilginin etik biçimde toplanması, analizi ve dağıtımı süreci olarak tanımlanmaktadır. RZ, bu nedenle işletmeler açısından stratejik bir rol üstlenmektedir. Bu çalışmada RZ'nın kavramsal yönünü vurgulamak ve RZ'ya yüklenen stratejik anlamı açıklamak amaçlanmıştır. Bu kapsamda RZ'nın ortaya çıkışı, kavramsal yönü, kapsamı ve süreci üzerinde durulmuştur. Çalışmanın sonucunda RZ ile ilgili hem akademik çalışmaların hem de uygulamaların artırılması gerekliliği ortaya çıkmıştır

REKABETÇİ ÜSTÜNLÜK YARATMADA PAZARLAMA ZEKÂSININ ETKİSİ: ISPARTA İLİNDEKİ KONAKLAMA İŞLETMELERİNDE BİR ARAŞTIRMA

ÖZET Pazarlama zekâsı, işletmelerin pazar fırsatlarını, pazara nüfuz etme stratejilerini ve pazar geliştirme yöntemlerini belirlemeye yöneliktir. Bu kapsamda pazar ile ilgili bilgileri toplama ve analiz etme sürecidir. Bu araştırmada Isparta ilindeki konaklama işletmelerinin pazarlama zekâsı incelenmesi amaçlanmıştır. Pazarlama zekâsı kapsamında işletmenin kaynakları ve müşteri yönlülüğü ele alınmıştır. Yapılan analiz sonucunda pazarlama zekâsında işletme kaynaklarının belirleyici rol oynadığı görülmüştür. Anahtar Kelimeler: pazarlama zekâsı, konaklama işletmeleri, rekabetçi üstünlük. EFFECT OF MARKETING INTELLIGENCE FOR CREATING COMPETITIVE ADVANTAGE: A STUDY IN HOSPITALITY BUSINESS ABSTRACT Marketing intelligence is intended to determine market opportunities of businesses, methods of market penetration and market development strategies. In this context, marketing intelligence is the process of collecting and analyzing information on the market. In this study, we investigate the marketing intelligence of hospitality business in Isparta. Marketing intelligence is discussed under the entity's resources and customer versatility. As a result of the analysis, it was found to play a decisive role of business resources in marketing intelligence. Keywords: marketing intelligence, hospitality business, competitive advantage

Regression with Linear Factored Functions

Many applications that use empirically estimated functions face a curse of dimensionality, because the integrals over most function classes must be approximated by sampling. This paper introduces a novel regression-algorithm that learns linear factored functions (LFF). This class of functions has structural properties that allow to analytically solve certain integrals and to calculate point-wise products. Applications like belief propagation and reinforcement learning can exploit these properties to break the curse and speed up computation. We derive a regularized greedy optimization scheme, that learns factored basis functions during training. The novel regression algorithm performs competitively to Gaussian processes on benchmark tasks, and the learned LFF functions are with 4-9 factored basis functions on average very compact.Comment: Under review as conference paper at ECML/PKDD 201

Okul Öncesi Dönemde Anne-Çocuk Birlikte Hikâye Kitabı Okuma Davranışlarının İncelenmesi

Araştırmanın amacı annelerin çocukları ile birlikte hikâye kitabı okuma davranışlarının incelenmesidir. Betimsel tarama modelinde desenlenen araştırmanın örneklemi çocukları anasınıflarına devam eden 436 anneden oluşmaktadır. Veriler ÇEBOE (Çocuk Ebeveyn Birlikte Okuma Etkinlikleri Ölçeği) ile toplanmıştır. Verilerin analizinde betimsel istatistiklere ek olarak, Student’s t testi, Mann-Whitney U testi, Tek Yönlü Varyans Analizi (ANOVA) ve Kruskal-Wallis H testi uygulanmıştır.  Yapılan analizler sonucunda annelerin birlikte etkileşimli okuma, birlikte okumaya yönelik görüşler ve okuryazarlığın önemi boyutlarını her zaman, okuryazarlık öğretimini ara sıra ve okuryazarlığa model olma boyutunu nadiren gerçekleştirdikleri ortaya çıkmıştır. Ayrıca, annelerin çocukları ile birlikte okuma davranışlarının, anne eğitim düzeyi ve sahip olunan çocuk sayısına göre; çocuklarına kitap okuma sıklıklarına, kitap okumaya ayırdıkları zamana, çocuklarıyla birlikte okuyabilecekleri kitap sayısına ve çocuklarına ilk kitabı alma yaşına göre anlamlı farklılık gösterdiği görülmüştür