190 research outputs found
Beyond Traditional Approaches: Multi-Task Network for Breast Ultrasound Diagnosis
Breast Ultrasound plays a vital role in cancer diagnosis as a non-invasive
approach with cost-effective. In recent years, with the development of deep
learning, many CNN-based approaches have been widely researched in both tumor
localization and cancer classification tasks. Even though previous single
models achieved great performance in both tasks, these methods have some
limitations in inference time, GPU requirement, and separate fine-tuning for
each model. In this study, we aim to redesign and build end-to-end multi-task
architecture to conduct both segmentation and classification. With our proposed
approach, we achieved outstanding performance and time efficiency, with 79.8%
and 86.4% in DeepLabV3+ architecture in the segmentation task.Comment: 7 pages, 3 figure
Investigation of the local environment of SnO2 in an applied magnetic field
This paper presents the results of time-differential perturbed gamma–gamma angular correlation measurements of SnO2 thin films carried out in an applied magnetic field. The measurements were performed upon the implantation of Fe at 80 keV and 111In (111Cd) at 160 keV. The samples were further characterized by energydispersive X-ray spectroscopy. The hyperfine parameters were studied at room temperature with and without an applied magnetic field. The results indicate the presence of two distinct local environments for the probe nuclei. Both occupy a paramagnetic state and correspond to a substitutional Sn site in the rutile phase of SnO2
with different numbers of electrons added to SnO2:Cd0. In addition, the crystal homogeneity of the site 1 increases upon applying the magnetic field
Investigation of sorption of Cu₂₊, Zn₂₊ and Cd₂₊ ions by a composite adsorbent obtained from bentonite-like clay and hydroxyapatite
The article analyses the results of the measuring of pHpzc (point zero charge) of the surface of adsorbents by potentiometric titration are presente
Comparison of combination of dimensionality reduction and classification techniques for identifying tree species using integrated QuickBird imagery and Lidar data
Class based Influence Functions for Error Detection
Influence functions (IFs) are a powerful tool for detecting anomalous
examples in large scale datasets. However, they are unstable when applied to
deep networks. In this paper, we provide an explanation for the instability of
IFs and develop a solution to this problem. We show that IFs are unreliable
when the two data points belong to two different classes. Our solution
leverages class information to improve the stability of IFs. Extensive
experiments show that our modification significantly improves the performance
and stability of IFs while incurring no additional computational cost.Comment: Thang Nguyen-Duc, Hoang Thanh-Tung, and Quan Hung Tran are co-first
authors of this paper. 12 pages, 12 figures. Accepted to ACL 202
Poultry trading behaviours in Vietnamese live bird markets as risk factors for avian influenza infection in chickens
Vietnamese poultry are host to co‐circulating subtypes of avian influenza viruses, including H5N1 and H9N2, which pose a great risk to poultry productivity and to human health. AIVs circulate throughout the poultry trade network in Vietnam, with live bird markets being an integral component to this network. Traders at LBMs exhibit a variety of trading practices, which may influence the transmission of AIVs. We identified trading practices that impacted on AIV prevalence in chickens marketed in northern Vietnamese LBMs. We generated sequencing data for 31 H9N2 and 2 H5N6 viruses. Viruses isolated in the same LBM or from chickens sourced from the same province were genetically closer than viruses isolated in different LBMs or from chickens sourced in different provinces. The position of a vendor in the trading network impacted on their odds of having AIV infected chickens. Being a retailer and purchasing chickens from middlemen was associated with increased odds of infection, whereas odds decreased if vendors purchased chickens directly from large farms. Odds of infection were also higher for vendors having a greater volume of ducks unsold per day. These results indicate how the spread of AIVs is influenced by the structure of the live poultry trading network
Effectiveness of cervical pessary compared to cervical cerclage with or without vaginal progesterone for the prevention of preterm birth in women with twin pregnancies and a short cervix : Study protocol for a two-by-two factorial randomised clinical trial
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