372 research outputs found
AUTO-CDD: automatic cleaning dirty data using machine learning techniques
Cleaning the dirty data has become very critical significance for many years, especially in medical sectors. This is the reason behind widening research in this sector. To initiate the research, a comparison between currently used functions of handling missing values and Auto-CDD is presented. The developed system will guarantee to overcome processing unwanted outcomes in data Analytical process; second, it will improve overall data processing. Our motivation is to create an intelligent tool that will automatically predict the missing data. Starting with feature selection using Random Forest Gini Index values. Then by using three Machine Learning Paradigm trained model was developed and evaluated by two datasets from UCI (i.e. Diabetics and Student Performance). Evaluated outcomes of accuracy proved Random Forest Classifier and Logistic Regression gives constant accuracy at around 90%. Finally, it concludes that this process will help to get clean data for further analytical process
Ophthalmic Biomarker Detection Using Ensembled Vision Transformers -- Winning Solution to IEEE SPS VIP Cup 2023
This report outlines our approach in the IEEE SPS VIP Cup 2023: Ophthalmic
Biomarker Detection competition. Our primary objective in this competition was
to identify biomarkers from Optical Coherence Tomography (OCT) images obtained
from a diverse range of patients. Using robust augmentations and 5-fold
cross-validation, we trained two vision transformer-based models: MaxViT and
EVA-02, and ensembled them at inference time. We find MaxViT's use of
convolution layers followed by strided attention to be better suited for the
detection of local features while EVA-02's use of normal attention mechanism
and knowledge distillation is better for detecting global features. Ours was
the best-performing solution in the competition, achieving a patient-wise F1
score of 0.814 in the first phase and 0.8527 in the second and final phase of
VIP Cup 2023, scoring 3.8% higher than the next-best solution
Lean Six Sigma Approach to Implement a Femur Fracture Care Pathway at “San Giovanni di Dio e Ruggi d’Aragona” University Hospital
Timeliness in the treatment of fracture of the femur, through surgery, is crucial in the elderly patient as it reduces the risk of mortality and disability. Here we propose a Lean Six Sigma (LSS) approach to reduce the preoperative length of stay for patients with femur fracture. Through the LSS, a tailored Diagnostic Therapeutic Assistance Path (DTAP) for these has been implemented and monitored over time. In particular, through the analysis, based on the application of the DMAIC cycle conducted on data extrapolated from the information system of the “San Giovanni di Dio e Ruggi d’Aragona” University Hospital of Salerno, the new DTAP was designed and implemented. After the introduction of the DTAP, a significant reduction in the average length of hospital stay was observed, with a preoperative length of stay within 48 h in 65% cases (compared to the previous 9%). In particular, the most significant reduction (over 55%) is obtained for patients aged over 65 years old. Such a result reflects not only the improvement in the care process but it is also compliant with the guidelines of the Italian Ministry of Health, as reported in the New Guarantee System for monitoring the quality of care. © 2021, Springer Nature Switzerland AG
The burden of diabetes mellitus during pregnancy in low- and middle-income countries : a systematic review
Peer reviewedPublisher PD
Measurement of the branching fractions for B- --> D(*)+ pi- l- nu-bar and B0bar --> D(*)0 pi+ l- nu-bar
We report on a measurement of the branching fractions for B- --> D(*)+ pi- l-
nu-bar and B0bar --> D(*)0 pi+ l- nu-bar with 275 million BBbar events
collected at the Upsilon(4S) resonance with the Belle detector at KEKB. Events
are tagged by fully reconstructing one of the B mesons in hadronic modes. We
obtain Br(B- --> D+ pi- l- nu-bar) = (0.54 +/- 0.07(stat) +/- 0.07(syst) +/-
0.06(BR)) x 10^-2, Br(B- --> D*+ pi- l- nu-bar) = (0.67 +/- 0.11(stat) +/-
0.09(syst) +/- 0.03(BR)) x 10^-2, Br(B0bar --> D0 pi+ l- nu-bar) = (0.33 +/-
0.06(stat) +/- 0.06(syst) +/- 0.03(BR)) x 10^-2, Br(B0bar --> D*0 pi+ l-
nu-bar) = (0.65 +/- 0.12(stat) +/- 0.08(syst) +/- 0.05(BR)) x 10^-2, where the
third error comes from the error on Bbar --> D(*) l- nu-bar decays.
Contributions from B0bar --> D*+ l- nu-bar decays are excluded in the
measurement of B0bar --> D0 pi+ l- nu-bar.Comment: 6 pages, 10 figures, submitted to Physical Review D (Rapid
Communication), the Lepton-Photon 2005 Conference (Uppsala, Sweden) and the
HEP2005 Europhysics Conference (Lisboa, Portugal
Measurement of D0 -> pilnu (Klnu) Form Factors and Absolute Branching Fractions
Using a 282 1/fb data sample collected by the Belle experiment at the KEKB
e+e- collider, we study D0 decays to K-l+nu and pi-l+nu final states. The D0
flavor and momentum are tagged through a full reconstruction of the recoiling
charm meson and additional mesons from fragmentation. The reconstruction method
provides very good resolution in neutrino momentum and in q^2 = (p_l+p_nu)^2.
Normalizing to the total number of D0 tags, we measure the absolute branching
fractions to be B(D0 -> Klnu) =(3.45 +- 0.07stat +- 0.20syst)% and B(D0 ->
pilnu) = (0.255 +- 0.019stat +- 0.016syst)% and the semi-leptonic form factors
(within the modified pole model) f+^K(0) = 0.695 +- 0.007stat +- 0.022syst and
f+^pi(0) = 0.624 +- 0.020stat +- 0.030syst.Comment: 9 pages, 2 figures, submitted to Phys. Rev. Let
Measurements of CP Violation in and Decays
We report measurements of time dependent decay rates for decays and extraction of CP violation parameters that depend on
. Using fully reconstructed events and partially
reconstructed events from a data sample that contains 386 million
pairs that was collected near the resonance, with the
Belle detector at the KEKB asymmetric energy collider, we obtain the
CP violation parameters and . We obtain
,
, and
,
.
These results are an indication of CP violation in and
decays at the and levels,
respectively. If we use the values of that are derived using
assumptions of factorization and SU(3) symmetry, the branching fraction
measurements for the modes, and lattice QCD calculations, we
can restrict the allowed region of to be above 0.44
and 0.52 at 68% confidence level from the and modes,
respectively.Comment: 14 pages, 12 figures, submitted to Physical Review
Measurement of the wrong-sign decays D0 -> K+ pi- pi0 and D0 -> K+ pi- pi+ pi-, and search for CP violation
Using 281 fb^-1 of data from the Belle experiment recorded at or near the
Upsilon(4S) resonance, we have measured the rates of the ``wrong-sign'' decays
D0 -> K+ pi- pi0 and D0 -> K+ pi- pi+ pi- relative to those of the
Cabibbo-favored decays D0 -> K- pi+ pi0 and D0 -> K- pi+ pi+ pi-. These
wrong-sign decays proceed via a doubly Cabibbo-suppressed amplitude or via
D0-D0bar mixing; the latter has not yet been observed. We obtain
R_WS(Kpipi0)=[0.229 +/-0.017(stat.) +0.013-0.009(sys.)]% and R_WS(K3pi)=[0.320
+/-0.019(stat.) +0.018-0.013(sys.)]%. The CP asymmetries are measured to be
-0.006 +/- 0.053 and -0.018 +/- 0.044 for the K+ pi- pi0 and K+ pi- pi+ pi-
final states, respectively.Comment: 10 pages, 3 figures, submitted to PRL, Lepton-Photon 2005 Conference
in Uppsala, Sweden and HEP2005 Europhysics Conference in Lisboa, Portuga
Measurement of phi_3 with Dalitz plot analysis of B+ -> D(*)K(*)+ decay
We present a measurement of the unitarity triangle angle phi_3 using a Dalitz
plot analysis of the K0_S pi+ pi- decay of the neutral D meson from the B+- ->
D(*)K(*)+- process. The method employs the interference between D0 and D0bar to
extract the angle phi_3, strong phase Delta and the ratio r of suppressed and
allowed amplitudes. We apply this method to a 357 fb-1 data sample collected by
the Belle experiment. The analysis uses three modes: B+ -> DK+, B+ -> D*K+ with
D* -> Dpi0, and B+ -> DK*+ with K*+ -> K0_S pi+, as well as the corresponding
charge-conjugate modes. From a combined maximum likelihood fit to the three
modes, we obtain phi_3=53+15-18(stat)+-3(syst)+-9(model) degrees. The
corresponding two standard deviation interval is 8<phi_3<111 degrees.Comment: 18 pages, 6 figures, 7 tables. To be submitted to Phys. Rev.
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