scholarly journals A kernel machine for hidden object-ranking problems (HORPs)

2020 ◽  
Vol 79 (47-48) ◽  
pp. 35093-35107
Author(s):  
Gaël Mondonneix ◽  
Jean Martial Mari ◽  
Sébastien Chabrier ◽  
Alban Gabillon
Keyword(s):  
Feature Selection ◽  
Quality Assessment ◽  
The Other ◽  
P Value ◽  
Ordinal Information ◽  
Kernel Machine ◽  
Related Information ◽  
Significant Difference ◽  
Selection For ◽  
Ranking Problems

AbstractHidden Object-Ranking Problems (HORPs) are object-ranking problems stated as classification or instance-ranking problems. There exists so far no dedicated algorithm for solving them properly and HORPs are usually solved as if they were classification (multi-class or ordinal) or instance-ranking problems. In the former case, item-related ordinal information is negated and only class-related information is retained; in the latter case, item-related ordinal information is considered, but in a way that emphasizes class-related information, so that the items are not only sorted but also clustered. We propose a kernel machine that allows retaining item-related ordinal information while avoiding emphasizing class-related information. We show how this kernel machine can be implemented with standard optimization libraries provided slight modifications on the original kernel. The proposed approach is tested on Tahitian pearls quality assessment and compared with four other classical methods. It yields better results (93.6% ± 3.9% of correct predictions without feature selection, 94.3% ± 3.4% with feature selection) than the best of the other tested methods (91.3% ± 3.4% and 92.6% ± 4.3% without and with feature selection for the instance-ranking approach), this improvement being significant (p-value < 0.05). Moreover, this method exhibits no significant difference in the results with and without feature selection (p-value = 0.33), which may be a hint that its learning bias fits the problem well and can thus alleviate the data preprocessing workload.

Feature selection for quality assessment of indoor mobile mapping point clouds

2016 ◽  
Author(s):  
Fangfang Huang ◽  
Chenglu Wen ◽  
Cheng Wang ◽  
Jonathan Li
Keyword(s):  
Feature Selection ◽  
Quality Assessment ◽  
Point Clouds ◽  
Mobile Mapping ◽  
Selection For ◽  
Mapping Point

scholarly journals Prediction of Foetal Well-being with Non-stress Test

2016 ◽  
Vol 33 (2) ◽  
pp. 65-69
Author(s):  
Jahanara Rahman ◽  
Hosne Ara Begum
Keyword(s):  
Caesarean Section ◽  
Vaginal Delivery ◽  
Gestational Age ◽  
Apgar Score ◽  
Stress Test ◽  
The Other ◽  
P Value ◽  
Mild Depression ◽  
Other Hand ◽  
Significant Difference

Introduction: Non-stress test (NST) is the most common antenatal test performed to assess the foetus at risk of intrauterine hypoxia. On the other hand non-reactivity detected by NST increases the interferences of pregnancy by Caesarean section.Methodology: A cross sectional descriptive study was carried out in the department of Obstetrics and Gynaecology at Dhaka National Medical College between July2007 and June 2008.Objectives: The objectives of the study were (1) To observe the mode of delivery in cases of non-reactive non stress test (NST) and (2) To evaluate perinatal outcome of non-reactive NST.Results: A total 137 high risk pregnant women were included in the study. Age of the women ranges from 16 to 32 years. The mean age of the women was 23.74 ± 3.71 year. Among them 44.53% were primaegravida and 55.47% were multigravida. Gestational age was between 35 and 42 weeks and mean gestational age was 38.34±1.42 weeks. Regarding foetal reactivity 61.3% (n=84) were reactive and 38.7 % (n=53) were non-reactive. Among the babies of non reactive NST 98.11% and 1.89% were delivered by caesarean section and vaginal delivery respectively. Whereas, 48.81% and 51.19% babies of reactive NST were delivered by caesarean section and vaginal delivery respectively. The percentage of caesarean section was much higher in non-reactive NST cases in comparison to that of reactive NST which was statistically highly significant (p value 0.0000). One minute after birth APGAR scoring revealed that 56.6% and 43.4% newborn of non-reactive NST had no depression( APGAR score 7-10) and mild depression ( APGAR score 4-6) respectively. On the other hand 65.47% and 34.5% newborn of reactive NST had no depression and mild depression respectively at one minute after birth. Therefore, small difference was noticed in the neonatal status between the reactive and non-reactive NST which had no statistical significance (p value 0.507). Evaluation of the neonates with APGAR scoring done 5 minutes after birth revealed mild depression (APGAR score 4-6) in 24.53% and 20.24% of non-reactive and reactive NST cases respectively and no depression (APGAR score 7- 10) was found in 75.47% and 70.76% in reactive and nonreactive NST respectively. So, 5 minutes after birth the neonatal status among reactive and non-reactive NST made no significant difference (p value 0.9266).Conclusion: Neonatal evaluation revealed that all foetuses were not compromised as detected by NST. Relying on NST the rate of Caesarean section has been increased. Reassessment of the foetal conditions was needed with the help of other techniques. Therefore NST alone is insufficiently predictive of neonatal outcome.J Bangladesh Coll Phys Surg 2015; 33(2): 65-69

scholarly journals CT-Scan Findings of Patients Presented with Hepatic Mass attended at Tertiary Care Hospital in Bangladesh

2015 ◽  
Vol 2 (1) ◽  
pp. 7-11
Author(s):  
Wahida Begum ◽  
Khondker Shaheed Hussain ◽  
Tariqul Islam ◽  
Sharmin Sultana Rupa
Keyword(s):  
Ct Scan ◽  
The Other ◽  
P Value ◽  
Care Hospital ◽  
Benign Lesions ◽  
Multiple Lesion ◽  
Hepatic Mass ◽  
Significant Difference ◽  
Right Lobe ◽  
Malignant Lesions

Background: CT-scan findings give a well delineated impression on hepatic mass. Objective: The purpose of the present study was to observe the CT-scan findings of hepatic mass. Methodology: This cross sectional study was carried out in the department of Radiology and Imaging MMC in collaboration with the same department of BSMMU, DMC, Dhaka during the period of 1st January 2006 to 31st December 2007 to establish the usefulness of CT scan in the diagnosis of hepatic mass and its validity by determining sensitivity, specificity, PV, NPV, and accuracy. A total of 50 patients were admitted in the Department of Medicine and Department of Hepatobiliary of MMCH, BSMMU, and DMCH with the clinical diagnosis of fever, abdominal pain, anorexia, nausea/vomiting, loss of appetite, jaundice, weight loss and ascites. They were sent to the department of Radiology and Imaging and of respected hospitals for CT evaluation, confirmation and to see the extension for planning of proper management. Result: A total number of 50 hepatic mass patients were recruited in this study. CT findings of all patients showed 29 had lesions on right lobe, six patients had on left lobe and 15 patients had lesion on both lobe (p value <0.05). Among all patients 28 had multiple lesion, of them 71.4% was malignant and 28.6% was benign. On the other side 22 patients had solitary lesion, of them 36.4% was malignant and 63.6% was benign (p value <0.05). Among all malignant lesions 17 (60.7%) were hypodense, followed by 6 (21.4%) were isodense and 5 (17.9%) had mixed pattern of density. 12 (42.9%) patients of malignant diseases had ill-defined margin and 16 (57.1%) had well defined margin. 6 (27.3%) patients of benign lesions had ill-defined and 16 (72.7%) had well defined margin. No significant difference was observed. All malignant lesions (100%) and 77.3% benign lesions were enhanced after giving contrast. 16 (57.1%) malignant lesions were mildly enhanced, 10 (35.7%) were moderate and 2 (7.1%) were intensely enhanced. On the other side 8 (47.1%) benign lesions were mild, 35.5% were moderate and 3 (17.6%) were intensely enhanced. Conclusion: In conclusion hepatic mass is more common in right lobe of the liver of which multiple lesion is commonly found.Journal of Current and Advance Medical Research 2015;2(1):7-11DOI:  http://dx.doi.org/10.3329/jcamr.v2i1.22580

scholarly journals Comparison between Ormeloxifene and Norethisterone in reducing menorrhagia in dysfunctional uterine bleeding

2018 ◽  
Vol 7 (12) ◽  
pp. 4966
Author(s):  
Swati Gett ◽  
Shruti Singh
Keyword(s):  
Endometrial Thickness ◽  
Mean Value ◽  
Uterine Bleeding ◽  
The Other ◽  
P Value ◽  
Loss Assessment ◽  
Dysfunctional Uterine Bleeding ◽  
Significant Difference ◽  
Before And After

Background: Dysfunctional Uterine Bleeding (DUB) is a condition that affects nearly every woman at some point in her life. This study aims to compare the efficacy of Ormeloxifene and Norethisterone in reducing menorrhagia in such patients.Methods: This prospective study was done on 100 women presenting with dysfunctional uterine bleeding, of 20-50 years of age, who were ready for follow-up and were allocated into two equal groups, one was given Ormeloxifene and the other was given Norethisterone for a period of 3 months. Haemoglobin levels, endometrial thickness on ultrasound and Pictorial Blood loss Assessment Chart (PBAC) scores were assessed before and after the treatment.Results: It was found that both Ormeloxifene and Norethisterone reduced menorrhagia, with a significant difference in PBAC scores (p value <0.05). There was a notable reduction in PBAC scores in Ormeloxifene group (66.53% change from pretreatment mean value) as compared to Norethisterone group (31.38% change from pretreatment mean value); and same holds true for the change in haemoglobin levels as well as endometrial thickness. Ormeloxifene was found to have a greater effect on heavy menstrual bleeding in comparison to Norethisterone.Conclusions: Ormeloxifene is a new modality and is found to be a better option in reducing menorrhagia in DUB in respect to a greater success rate, better compliance and cost effectiveness.

scholarly journals Comparative analysis of flexural strength of abraded and polished porcelain surfaces – an in vitro study

2021 ◽  
Vol 14 (1) ◽  
pp. 61-67
Author(s):  
Prathibha Nandagiri ◽  
◽  
Mamidi Praveen ◽  
Shikha Singh ◽  
Monika Singh ◽  
...  
Keyword(s):  
Flexural Strength ◽  
Testing Machine ◽  
The Other ◽  
Control Group ◽  
P Value ◽  
Diamond Bur ◽  
Significant Difference ◽  
Fine Diamond ◽  
Ceramic Restorations

Typically, prosthodontists adjust ceramic restorations glazed surface by grinding prior to insertion. Such alterations of surfaces are necessary for the correction of occlusal interferences. We aimed to evaluate and compare the change in flexural strength of ceramic surfaces after re-glazing and polishing. This study included 40 samples of ceramic blocks that were fabricated and glazed, and then fired in accordance with the manufacturer’s recommendations. The sample was randomly divided into four groups of 10 samples each. The first group was the control group with unaltered glazed samples. The second group was abraded with an extra-fine diamond bur followed by re-glazing, and the other two groups were polished with two commercially available polishing kits after abrading them with an extra-fine diamond bur. The samples were tested for their flexural strength using a universal testing machine. On the application of the F test on the means of all the groups, a value greater than 0.05 was found, which meant that there is no statistically significant difference in flexural strength values between the groups (P-value>0.05). Since the flexural strength values of the polished group were comparable to the other groups, polishing can be used instead of re-glazing for ceramic restorations. This reduces an additional clinical appointment for the patient and saves working time.

scholarly journals Perilaku Pemilihan Makanan dan Pengenalan Anggota Koloni pada Semut Rangrang Oecophylla smaragdina

2021 ◽  
Vol 7 (2) ◽  
pp. 41-48
Author(s):  
M. Ubaidilah Hasan Hasan ◽  
La Ode Fitradiansyah Fitradiansyah ◽  
Fera Susanti Susanti ◽  
Rika Raffiudin
Keyword(s):  
Social Insects ◽  
Nestmate Recognition ◽  
Food Preferences ◽  
Chicken Meat ◽  
The Other ◽  
P Value ◽  
Oecophylla Smaragdina ◽  
Weaver Ants ◽  
Feeding Sites ◽  
Significant Difference

Weaver ants Oecophylla smaragdina are social insects that recognize nestmates using pheromone. This study analyzes the feeding behavior and nestmate recognition of weaver ants in the urban area of three different islands (Sumatra: Baturaja; Java: Banyuwangi; Papua: Sorong). The free ants were placed in the arena composed of chicken meat, sugar, bananas as the baits. Ten trapped ants were also located in the arena to explore the nestmate recognition between the free and the trapped ants. Five types of behaviors, i.e., approach, stalking, communication, competition, and agonistic, were recorded in 6 days. Food preferences were indicated by the number of conduct towards the feeding sites, and nestmate recognition was indicated by approaching the trapped nestmate. The results showed that the percentage of the approach behavior of free ants was the highest in the three islands but had no significant difference between Sumatra and Java and between Java and Sorong (p-value >0.05). However, the study showed significant differences for the other four behaviors observed. As predicted, the percentage of chicken meat foraged by the ants was the highest due to the carnivorous behavior. The free ants showed the nestmate recognition to the trapped ants in all behavior, except competition.  

A study of Vitamin D supplementation to patients with chronic diseases admitted to Ain Shams University Hospital

QJM ◽  
2021 ◽  
Vol 114 (Supplement_1) ◽  
Author(s):  
Raef Malak Botros ◽  
Ahmed Mohamed Bahaa El Din ◽  
Hany Khairy Mansour ◽  
Mariam Michel Ayad Grace
Keyword(s):  
Vitamin D ◽  
Single Dose ◽  
Chronic Diseases ◽  
Intervention Group ◽  
Vitamin D Supplementation ◽  
The Other ◽  
University Hospital ◽  
Control Group ◽  
P Value ◽  
Significant Difference

Abstract Background Vitamin D deficiency and insufficiency have become a common problem worldwide. Vitamin D has been associated with all causes of mortality in chronic diseases and associated with a longer hospital stay and poor outcome. Aim of the Study to evaluate the role of vitamin D supplementation on the outcome of hospitalization for patients with CLD or CHF admitted to Ain Shams University Hospitals (ASUH) with acute deterioration of their illness. Subjects and methods We conducted prospective case control on 80 patients collected from inpatient ward of endocrinology, divided into 2 groups; 40 patients with chronic liver diseases and 40 patients with heart failure. Serum 25OH-vitamin D and calcium, phosphate and PTH were measured to all participants before intervention. 20 patients of each group (Intervention group) received single dose of vitamin D within 3 days of admission and the other 20 patients of each group (control group) did not receive vitamin D vitamin D. Results no significant difference between patients who received vitamin D supplementation and who did not receive vitamin D supplementation as regards outcome and survival with P value 1.000 in patients with CLD and 0.823 in patients with CHF. On the other hand, we found baseline vitamin D level was an independent predictor of mortality (P value .018). Conclusion We found that a beneficial effect of vitamin D supplementation can't be achieved with single dose vitamin D (200,000 IU) on CHF or CLD hospitalized patients’ mortality. We recommend that vitamin D supplementation should be considered in CLD and CHF outpatients, with exception of hypercalcemic and hyperphosphatemic patients, as baseline vitamin D status affects the disease course and mortality prior to disease deterioration and hospitalization.

Study on Development of Humor Discriminator for Dialogue System

2020 ◽  
Vol 24 (3) ◽  
pp. 422-435
Author(s):  
Tomohiro Yoshikawa ◽  
◽  
Ryosuke Iwakura
Keyword(s):  
Human Subjects ◽  
The Other ◽  
P Value ◽  
Dialogue Systems ◽  
Generation System ◽  
Dialogue System ◽  
Evaluation Scores ◽  
Significant Difference ◽  
Computer Based ◽  
Task Oriented

Studies on automatic dialogue systems, which allow people and computers to communicate with each other using natural language, have been attracting attention. In particular, the main objective of a non-task-oriented dialogue system is not to achieve a specific task but to amuse users through chat and free dialogue. For this type of dialogue system, continuity of the dialogue is important because users can easily get tired if the dialogue is monotonous. On the other hand, preceding studies have shown that speech with humorous expressions is effective in improving the continuity of a dialogue. In this study, we developed a computer-based humor discriminator to perform user- or situation-independent objective discrimination of humor. Using the humor discriminator, we also developed an automatic humor generation system and conducted an evaluation experiment with human subjects to test the generated jokes. A t-test on the evaluation scores revealed a significant difference (P value: 3.5×10-5) between the proposed and existing methods of joke generation.

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