Fusion of Learned Multi-Modal Representations and Dense Trajectories for Emotional Analysis in Videos

When designing a video affective content analysis algorithm, one of the most important steps is the selection of discriminative features for the effective representation of video segments. The majority of existing affective content analysis methods either use low-level audio-visual features or generate handcrafted higher level representations based on these low-level features. We propose in this work to use deep learning methods, in particular convolutional neural networks (CNNs), in order to automatically learn and extract mid-level representations from raw data. To this end, we exploit the audio and visual modality of videos by employing Mel-Frequency Cepstral Coefficients (MFCC) and color values in the HSV color space. We also incorporate dense trajectory based motion features in order to further enhance the performance of the analysis. By means of multi-class support vector machines (SVMs) and fusion mechanisms, music video clips are classified into one of four affective categories representing the four quadrants of the Valence-Arousal (VA) space. Results obtained on a subset of the DEAP dataset show (1) that higher level representations perform better than low-level features, and (2) that incorporating motion information leads to a notable performance gain, independently from the chosen representation

A visualization tool for violent scenes detection

We present a browser-based visualization tool that allows users to explore movies and online videos based on the violence level of these videos. The system offers visualizations of annotations and results of the MediaEval 2012 Affect Task and can interactively download and analyze content from video hosting sites like YouTube

Türkiye'de subklinik mastitisli pırlak koyunlardan izole edilen stafilokoklarda metisilin direnç ve panton-valentine lökosidin genlerinin prevalansı

This study aimed to investigate the presence of mecA and pvl genes in 47 Staphylococci previously isolated from 464 half-udder milk samples belong to 235 Pirlak sheep screening for subclinical mastitis. The species from Pirlak sheep used in the present study included: 13 S. aureus, 13 S. epidermidis, six S. xylosus, five S. chromogenes, three S. simulans, three S. hyicus, two S. warneri, one S. lentus and one S. saprophyticus. A total of 10 strains (21.3%) were determined to harbour mecA gene, of these, two (4.2%) also contained pvl gene. The strains carrying mecA gene were found to be S. aureus (3/13), S. xylosus (3/6), S. epidermidis (2/13), S. lentus (1/1) and S. hyicus (1/3). The presence of pvl gene was determined in a total of eight strains (17.0%), six (12.8%) of these were alone. Of pvl positive strains, three, three, one, and one were S. aureus, S. xylosus, S. simulans and S. hyicus, respectively. To our knowledge, this is the first study showing the presence of mecA and pvl genes in the Staphylococci isolated from Pirlak sheep with subclinical mastitis in Turkey.Bu çalışmada, subklinik mastitis yönünden taranan 235 Pırlak koyuna ait 464 meme lobu süt örneğinden daha önce izole edilen 47 Stafilokok türünde mecA ve pvl genlerinin varlığının araştırılması amaçlandı. Çalışmada, Pırlak koyunlardan izole edilen 13 S. aureus, 13 S. epidermidis, altı S. xylosus, beş S. chromogenes, üç S. simulans, üç S. hyicus, iki S. warneri, bir S. lentus ve bir S. saprophyticus suşu kullanıldı. Toplam 10 suşun (%21,3) mecA geni taşıdığı, bunlardan ikisinin (%4,2) ayrıca pvl genine de sahip olduğu belirlendi. mecA geni taşıyan suşlar S. aureus (3/13), S. xylosus (3/6), S. epidermidis (2/13), S. lentus (1/1) ve S. hyicus (1/3) olarak bulundu. Toplam sekiz suşta (%17,0) pvl geni belirlenirken, bunlardan altısının (%12,8) bu geni tek başına taşıdığı tespit edildi. pvl pozitif suşların üçü S. aureus, üçü S. xylosus, biri S. simulans ve biri S. hyicus olarak belirlendi. Bilgimize göre, bu çalışma Türkiye'de subklinik mastitisli Pırlak koyunlardan izole edilen Stafilokoklarda mecA ve pvl genlerinin varlığını gösteren ilk çalışmadır

Deformable MRI fusion for intracranial SRS: Can we trust?

Purpose/Objective: The aim of this study is to evaluate the reliability of MRI fusion for the determination of target volume when performing CT based intracranial stereotactic radiosurgery. Materials and Methods: Patients treated with CT based intracranial stereotactic radiosurgery with various diagnoses are included in the study. All patients were immobilized using stereotactic thermoplastic masks prior to simulation. The planning CT was obtained both with and without iv contrast with 1mm slice thickness

Interobserver reproducibility of intracranial anatomy assessment during second trimester sonographic scan

To evaluate the reproducibility of mid-trimester intracranial anatomy assessment. Women undergoing mid-trimester scan (between 18th to 25th gestational weeks) for fetal anatomy assessment were included in the study. Measurements of lateral ventricle (LV), cisterna magna (CM) and transverse cerebellar diameter (TCD) were obtained for reproducibility analyses. Inter-observer reproducibility analysis was made with correlation coefficients. A total of 162 women were included in the analysis while one woman was excluded from the study due to diagnosis of vermian agenesis. Correlation coefficient (CC) of cisterna magna measurements have shown weak to moderate interclass correlation (r=0.28, P=0.001). Measurements of lateral ventricle have shown moderate to strong interclass correlation (r=0.73, P<0.0001). Transverse cerebellar diameter measurements have shown the best interclass correlation (r=0.88, respectively P<0.0001). Mean difference between different observers were-0.4 mm (95% CI:-3.0 to 2.1 mm), 0.7mm (95% CI:-1.0 to 2.5 mm) and 0.53 mm (95% CI:-2.5 to 3.6 mm) for measurements of cerebellum, lateral ventricle and cisterna magna, respectively. When grouped according to BMI (Over 30 kg/m2 and lower than 25 kg/m2) and presentation (cephalic and breech), there were no differences between groups regarding the prevalence of an absolute difference gre ater than 1 mm between paired measurements by different observers. Measurements of TCD, LV and CM during mid-trimester scan have good interobserver reliability with the exception of CM measurements. Methods used for measuring these structures have shown good consistency between different BMI categories and different fetal presentations during ultrasound scans

Audio-visual classification video browser

This paper presents our third participation in the Video Browser Showdown. Building on the experience that we gained while participating in this event, we compete in the 2014 showdown with a more advanced browsing system based on incorporating several audio- visual retrieval techniques. This paper provides a short overview of the features and functionality of our new system

Clinicopathological and survival characteristics of mismatch repair status and PD-1 expression in serous ovarian cancer

Objective: To evaluate the clinicopathological characteristics of mismatch repair (MMR) deficiency and its clinical outcomes by performing immunohistochemistry (IHC) for MMR genes in the serous ovarian cancer (SOC) tumour sections.Study Design: A retrospective case-control study. Place and Duration of the Study: Gynecology Department of Kanuni Sultan Suleyman Training and Research Hospital, and Department of Medical Oncology of Medipol University, between March 2001 and January 2020. Methodology: IHC was carried out for MLH1, MSH2, MSH6, and PMS2 on full-section slides from 127 SOCs to evaluate the MMR status. MMR-negative and MMR-low groups together were defined as MMR deficient and called microsatellite instability-high (MSI-H). The MSI status and expression of programmed cell death-1 (PD-1) were compared in SOCs with different MMR statuses. Results: A significantly higher frequency of MMR-deficient SOCs was diagnosed at early stages compared with the patients in the MSS group (38.6% and 20.6%, respectively, p=0.022). The frequency of cases with PD-1 expression was significantly higher in the MSI-H group (76.2%) than in the MSS counterparts (58.8%, p=0.028). Patients in the MSI-H group had significantly longer DFS (25.6 months) and OS (not reached) than those in the MSS group (16 months and 48.9 months, p=0.039 and p=0.026, respectively).Conclusion: MSI-H SOCs were diagnosed at an earlier stage as compared to MMR proficient cases. The presence of PD-1 expres-sion was significantly higher in cases presenting MMR deficiency compared with MMR-proficient cases. MSI status was significantly associated with DFS and OS

Habits of using social media and the internet in psoriasis patients

Introduction: Psoriasis significantly affects the patients quality of life, which often leads patients to seek online information about this disease. Objectives: To explore the habits of patients with psoriasis related to their use of social media (SM) and the internet to obtain information about their disease. Methods: 1,520 patients completed the survey and the Dermatology Life Quality Index (DLQI) questionnaire. The Psoriasis Area Severity Index scores (PASI) and clinical data of the patients were recorded by their physicians. Results: Of the 1,114 patients that reported using SM and internet, 48.38% regularly and 31.14% sometimes resorted to obtain information about psoriasis. The use of SM and internet for psoriasis was statistically significantly higher among young people (P = 0.000), those with university or higher education (P = 0.009), higher DLQI (P = 0.000) and PASI (P = 0.011) scores, facial (P = 0.050), scalp (P = 0.032), hand (P = 0.048), genital (P = 0.001) and inverse (P = 0.000) involvement, and arthralgia/arthritis (P = 0.006). The participants mostly used the Google (86%) and Facebook (41%). More than half of the participants (62.8%) expected dermatologists to inform society that psoriasis is not contagious. Conclusions: Internet and SM being widely available and offering substantial information to be easily accessed make it very attractive for patients to use these platforms to investigate diseases, including psoriasis. If what is presented on SM conflicts with what the physician says, patients mostly trust the latter, but at the same time, they tend not to share the results of their online inquiries with their physicians