keyword
MENU ▼
Read by QxMD icon Read
search

Integrated discrimination improvement

keyword
https://www.readbyqxmd.com/read/28641251/robust-face-recognition-with-kernelized-locality-sensitive-group-sparsity-representation
#1
Shoubiao Tan, Xi Sun, Wentao Chan, Lei Qu, Ling Shao
In this paper, a novel joint sparse representation method is proposed for robust face recognition. We embed both group sparsity and kernelized locality-sensitive constraints into the framework of sparse representation. The group sparsity constraint is designed to utilize the grouped structure information in the training data. The local similarity between test and training data is measured in the kernel space instead of the Euclidian space. As a result, the embedded nonlinear information can be effectively captured, leading to a more discriminative representation...
June 15, 2017: IEEE Transactions on Image Processing: a Publication of the IEEE Signal Processing Society
https://www.readbyqxmd.com/read/28634674/prognostic-impact-of-nutritional-status-assessed-by-the-controlling-nutritional-status-score-in-patients-with-stable-coronary-artery-disease-undergoing-percutaneous-coronary-intervention
#2
Hideki Wada, Tomotaka Dohi, Katsumi Miyauchi, Shinichiro Doi, Hirokazu Konishi, Ryo Naito, Shuta Tsuboi, Manabu Ogita, Takatoshi Kasai, Shinya Okazaki, Kikuo Isoda, Satoru Suwa, Hiroyuki Daida
BACKGROUND: Recently, malnutrition has been shown to be related to worse clinical outcomes in patients with heart failure. However, the association between nutritional status and clinical outcomes in patients with coronary artery disease (CAD) remains unclear. We investigated the prognostic value of malnutrition assessed by the Controlling Nutritional Status (CONUT; range 0-12, higher = worse, consisting of serum albumin, cholesterol and lymphocytes) score in patients with CAD. METHODS: The CONUT score was measured on admission in a total of 1987 patients with stable CAD who underwent elective percutaneous coronary intervention (PCI) between 2000 and 2011...
June 20, 2017: Clinical Research in Cardiology: Official Journal of the German Cardiac Society
https://www.readbyqxmd.com/read/28633636/typology-of-birth-centres-in-the-netherlands-using-the-rainbow-model-of-integrated-care-results-of-the-dutch-birth-centre-study
#3
Inge C Boesveld, Marc A Bruijnzeels, Marit Hitzert, Marieke A A Hermus, Karin M van der Pal-de Bruin, M Elske van den Akker-van Marle, Eric A P Steegers, Arie Franx, Raymond G de Vries, Therese A Wiegers
BACKGROUND: The goal of integrated care is to offer a continuum of care that crosses the boundaries of public health, primary, secondary, and tertiary care. Integrated care is increasingly promoted for people with complex needs and has also recently been promoted in maternity care systems to improve the quality of care. Especially when located near an obstetric unit, birth centres are considered to be ideal settings for the realization of integrated care. At present, however, we know very little about the degree of integration in these centres and we do not know if increased levels of integration improve the quality of the care delivered...
June 21, 2017: BMC Health Services Research
https://www.readbyqxmd.com/read/28630643/improved-classification-accuracy-of-powdery-mildew-infection-levels-of-wine-grapes-by-spatial-spectral-analysis-of-hyperspectral-images
#4
Uwe Knauer, Andrea Matros, Tijana Petrovic, Timothy Zanker, Eileen S Scott, Udo Seiffert
BACKGROUND: Hyperspectral imaging is an emerging means of assessing plant vitality, stress parameters, nutrition status, and diseases. Extraction of target values from the high-dimensional datasets either relies on pixel-wise processing of the full spectral information, appropriate selection of individual bands, or calculation of spectral indices. Limitations of such approaches are reduced classification accuracy, reduced robustness due to spatial variation of the spectral information across the surface of the objects measured as well as a loss of information intrinsic to band selection and use of spectral indices...
2017: Plant Methods
https://www.readbyqxmd.com/read/28628630/bird-sound-spectrogram-decomposition-through-non-negative-matrix-factorization-for-the-acoustic-classification-of-bird-species
#5
Jimmy Ludeña-Choez, Raisa Quispe-Soncco, Ascensión Gallardo-Antolín
Feature extraction for Acoustic Bird Species Classification (ABSC) tasks has traditionally been based on parametric representations that were specifically developed for speech signals, such as Mel Frequency Cepstral Coefficients (MFCC). However, the discrimination capabilities of these features for ABSC could be enhanced by accounting for the vocal production mechanisms of birds, and, in particular, the spectro-temporal structure of bird sounds. In this paper, a new front-end for ABSC is proposed that incorporates this specific information through the non-negative decomposition of bird sound spectrograms...
2017: PloS One
https://www.readbyqxmd.com/read/28627112/asymptotic-distribution-of-%C3%A2-auc-nris-and-idi-based-on-theory-of-u-statistics
#6
Olga V Demler, Michael J Pencina, Nancy R Cook, Ralph B D'Agostino
The change in area under the curve (∆AUC), the integrated discrimination improvement (IDI), and net reclassification index (NRI) are commonly used measures of risk prediction model performance. Some authors have reported good validity of associated methods of estimating their standard errors (SE) and construction of confidence intervals, whereas others have questioned their performance. To address these issues, we unite the ∆AUC, IDI, and three versions of the NRI under the umbrella of the U-statistics family...
June 19, 2017: Statistics in Medicine
https://www.readbyqxmd.com/read/28624398/prognostic-significance-of-remote-myocardium-alterations-assessed-by-quantitative-noncontrast-t1-mapping-in-st-segment-elevation-myocardial-infarction
#7
Sebastian J Reinstadler, Thomas Stiermaier, Johanna Liebetrau, Georg Fuernau, Charlotte Eitel, Suzanne de Waha, Steffen Desch, Jan-Christian Reil, Janine Pöss, Bernhard Metzler, Christian Lücke, Matthias Gutberlet, Gerhard Schuler, Holger Thiele, Ingo Eitel
OBJECTIVES: This study assessed the prognostic significance of remote zone native T1 alterations for the prediction of clinical events in a population with ST-segment elevation myocardial infarction (STEMI) who were treated by primary percutaneous coronary intervention (PPCI) and compared it with conventional markers of infarct severity. BACKGROUND: The exact role and incremental prognostic relevance of remote myocardium native T1 mapping alterations assessed by cardiac magnetic resonance (CMR) after STEMI remains unclear...
June 9, 2017: JACC. Cardiovascular Imaging
https://www.readbyqxmd.com/read/28622759/catching-audiovisual-interactions-with-a-first-person-fisherman-video-game
#8
Yile Sun, Timothy J Hickey, Barbara Shinn-Cunningham, Robert Sekuler
The human brain is excellent at integrating information from different sources across multiple sensory modalities. To examine one particularly important form of multisensory interaction, we manipulated the temporal correlation between visual and auditory stimuli in a first-person fisherman video game. Subjects saw rapidly swimming fish whose size oscillated, either at 6 or 8 Hz. Subjects categorized each fish according to its rate of size oscillation, while trying to ignore a concurrent broadband sound seemingly emitted by the fish...
July 2017: Perception
https://www.readbyqxmd.com/read/28620165/applying-modern-psychometric-techniques-to-melodic-discrimination-testing-item-response-theory-computerised-adaptive-testing-and-automatic-item-generation
#9
Peter M C Harrison, Tom Collins, Daniel Müllensiefen
Modern psychometric theory provides many useful tools for ability testing, such as item response theory, computerised adaptive testing, and automatic item generation. However, these techniques have yet to be integrated into mainstream psychological practice. This is unfortunate, because modern psychometric techniques can bring many benefits, including sophisticated reliability measures, improved construct validity, avoidance of exposure effects, and improved efficiency. In the present research we therefore use these techniques to develop a new test of a well-studied psychological capacity: melodic discrimination, the ability to detect differences between melodies...
June 15, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28620070/prediction-of-adult-dyslipidemia-using-genetic-and-childhood-clinical-risk-factors-the-cardiovascular-risk-in-young-finns-study
#10
Joel Nuotio, Niina Pitkänen, Costan G Magnussen, Marie-Jeanne Buscot, Mikko S Venäläinen, Laura L Elo, Eero Jokinen, Tomi Laitinen, Leena Taittonen, Nina Hutri-Kähönen, Leo-Pekka Lyytikäinen, Terho Lehtimäki, Jorma S Viikari, Markus Juonala, Olli T Raitakari
BACKGROUND: Dyslipidemia is a major modifiable risk factor for cardiovascular disease. We examined whether the addition of novel single-nucleotide polymorphisms for blood lipid levels enhances the prediction of adult dyslipidemia in comparison to childhood lipid measures. METHODS AND RESULTS: Two thousand four hundred and twenty-two participants of the Cardiovascular Risk in Young Finns Study who had participated in 2 surveys held during childhood (in 1980 when aged 3-18 years and in 1986) and at least once in a follow-up study in adulthood (2001, 2007, and 2011) were included...
June 2017: Circulation. Cardiovascular Genetics
https://www.readbyqxmd.com/read/28619954/a-novel-immune-biomarker-ifi27-discriminates-between-influenza-and-bacteria-in-patients-with-suspected-respiratory-infection
#11
Benjamin M Tang, Maryam Shojaei, Grant P Parnell, Stephen Huang, Marek Nalos, Sally Teoh, Kate O'Connor, Stephen Schibeci, Amy L Phu, Anand Kumar, John Ho, Adrienne F A Meyers, Yoav Keynan, Terry Ball, Amarnath Pisipati, Aseem Kumar, Elizabeth Moore, Damon Eisen, Kevin Lai, Mark Gillett, Robert Geffers, Hao Luo, Fahad Gul, Jens Schreiber, Sandra Riedel, David Booth, Anthony McLean, Klaus Schughart
Host response biomarkers can accurately distinguish between influenza and bacterial infection. However, published biomarkers require the measurement of many genes, thereby making it difficult to implement them in clinical practice. This study aims to identify a single-gene biomarker with a high diagnostic accuracy equivalent to multi-gene biomarkers.In this study, we combined an integrated genomic analysis of 1071 individuals with in vitro experiments using well-established infection models.We identified a single-gene biomarker, IFI27, which had a high prediction accuracy (91%) equivalent to that obtained by multi-gene biomarkers...
June 2017: European Respiratory Journal: Official Journal of the European Society for Clinical Respiratory Physiology
https://www.readbyqxmd.com/read/28619703/identifying-nonclinical-factors-associated-with-30-day-readmission-in-patients-with-cardiovascular-disease-protocol-for-an-observational-study
#12
Matthew E Dupre, Alicia Nelson, Scott M Lynch, Bradi B Granger, Hanzhang Xu, Janese M Willis, Lesley H Curtis, Eric D Peterson
BACKGROUND: Cardiovascular disease (CVD) is the leading cause of hospitalization in older adults and high readmission rates have attracted considerable attention as actionable targets to promote efficiency in care and to reduce costs. Despite a plethora of research over the past decade, current strategies to predict readmissions have been largely ineffective and efforts to identify novel clinical predictors have been largely unsuccessful. OBJECTIVE: The objective of this study is to examine a wide array of socioeconomic, psychosocial, behavioral, and clinical factors to predict risks of 30-day hospital readmission in cardiovascular patients...
June 15, 2017: JMIR Research Protocols
https://www.readbyqxmd.com/read/28617045/assessing-attachment-in-school-aged-children-do-the-school-age-assessment-of-attachment-and-family-drawings-work-together-as-complementary-tools
#13
Rebecca Carr-Hopkins, Calem De Burca, Felicity A Aldridge
AIMS: Our goal was to identify an assessment package that could improve treatment planning for troubled children and their families. To assess the validity of our tools, we tested the relations among the School-Age Assessment of Attachment, the Family Drawing and children's risk status. We used the Dynamic-Maturational Model of Attachment and Adaptation to interpret the assessments in the hope of identifying a gradient of risk, and explore whether a new coding method improved the validity of Family Drawings and their utility as a tool to complement the School-Age Assessment of Attachment...
June 1, 2017: Clinical Child Psychology and Psychiatry
https://www.readbyqxmd.com/read/28611359/chloroplast-genomic-resource-of-paris-for-species-discrimination
#14
Yun Song, Shaojun Wang, Yuanming Ding, Jin Xu, Ming Fu Li, Shuifang Zhu, Naizhong Chen
Paris is famous in China for its medicinal value and has been included in the Chinese Pharmacopoeia. Inaccurate identification of these species could confound their effective exploration, conservation, and domestication. Due to the plasticity of the morphological characteristics, correct identification among Paris species remains problematic. In this regard, we report the complete chloroplast genome of P. thibetica and P. rugosa to develop highly variable molecular markers. Comparing three chloroplast genomes, we sought out the most variable regions to develop the best cpDNA barcodes for Paris...
June 13, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28602434/carotid-plaque-thickness-and-common-carotid-imt-show-additive-value-in-cardiovascular-risk-prediction-and-reclassification
#15
Mauro Amato, Fabrizio Veglia, Ulf de Faire, Philippe Giral, Rainer Rauramaa, Andries J Smit, Sudhir Kurl, Alessio Ravani, Beatrice Frigerio, Daniela Sansaro, Alice Bonomi, Calogero C Tedesco, Samuela Castelnuovo, Elmo Mannarino, Steve E Humphries, Anders Hamsten, Elena Tremoli, Damiano Baldassarre
BACKGROUND AND AIMS: Carotid plaque size and the mean common carotid intima-media thickness measured in plaque-free areas (PF CC-IMTmean) have been identified as predictors of vascular events (VEs), but their complementarity in risk prediction and stratification is still unresolved. The aim of this study was to evaluate the independence of carotid plaque thickness and PF CC-IMTmean in cardiovascular risk prediction and risk stratification. METHODS: The IMPROVE-study is a European cohort (n = 3703), where the thickness of the largest plaque detected in the whole carotid tree was indexed as cIMTmax...
May 19, 2017: Atherosclerosis
https://www.readbyqxmd.com/read/28601908/urinary-liver-type-fatty-acid-binding-protein-is-an-independent-predictor-of-stroke-and-mortality-in-individuals-with-type-1-diabetes
#16
Nicolae M Panduru, Carol Forsblom, Markku Saraheimo, Lena M Thorn, Daniel Gordin, Nina Elonen, Valma Harjusalo, Angelika Bierhaus, Per M Humpert, Per-Henrik Groop
AIMS/HYPOTHESIS: In type 1 diabetes, cardiovascular disease (CVD) and diabetic nephropathy progress in parallel, thereby potentiating the risk of premature death during their development. Since urinary liver-type fatty acid binding protein (L-FABP) predicts the progression of diabetic nephropathy, the aim of this study was to investigate whether urinary L-FABP also predicts cardiovascular outcomes and mortality. METHODS: We tested our hypothesis in a Finnish cohort of 2329 individuals with type 1 diabetes and a median follow-up of 14...
June 10, 2017: Diabetologia
https://www.readbyqxmd.com/read/28601530/spectro-temporal-cues-enhance-modulation-sensitivity-in-cochlear-implant-users
#17
Yi Zheng, Monty Escabí, Ruth Y Litovsky
Although speech understanding is highly variable amongst cochlear implants (CIs) subjects, the remarkably high speech recognition performance of many CI users is unexpected and not well understood. Numerous factors, including neural health and degradation of the spectral information in the speech signal of CIs, likely contribute to speech understanding. We studied the ability to use spectro-temporal modulations, which may be critical for speech understanding and discrimination, and hypothesize that CI users adopt a different perceptual strategy than normal-hearing (NH) individuals, whereby they rely more heavily on joint spectro-temporal cues to enhance detection of auditory cues...
May 26, 2017: Hearing Research
https://www.readbyqxmd.com/read/28600101/non-cardiac-factors-for-prediction-of-response-to-cardiac-resynchronization-therapy-the-value-of-baseline-and-of-serial-changes-in-red-cell-distribution-width
#18
Erberto Carluccio, Paolo Biagioli, Gianfranco Alunni, Adriano Murrone, Gianluca Zingarini, Stefano Coiro, Antonella D'Antonio, Anna Mengoni, Maria Francesca Cerasa, Giuseppe Ambrosio
BACKGROUND: Increased red blood cell distribution width (RDW) has been associated with poor outcome after cardiac resynchronization therapy (CRT). However, whether baseline RDW, and its serial changes after CRT implant, have incremental prognostic value is unknown. METHODS AND RESULTS: In 148 consecutive patients (age, 68±9years; 122 men) undergoing CRT, RDW was assessed before and 3months after implant. Patients were categorized according to baseline RDW (≤14...
June 2, 2017: International Journal of Cardiology
https://www.readbyqxmd.com/read/28599178/study-of-small-cell-lung-cancer-cell-based-sensor-and-its-applications-in-chemotherapy-effects-rapid-evaluation-for-anticancer-drugs
#19
Hui Guohua, Lu Hongyang, Jiang Zhiming, Zhu Danhua, Wan Haifang
Small cell lung cancer (SCLC) is a smoking-related cancer disease. Despite improvement in clinical survival, SCLC outcome remains extremely poor. Cisplatin (DDP) is the first-line chemotherapy drug for SCLC, but the choice of second-line chemotherapy drugs is not clear. In this paper, a SCLC cell-based sensor was proposed, and its applications in chemotherapy effects rapid evaluation for anticancer drugs were investigated. SCLC cell lines lung adenocarcinoma cell (LTEP-P) and DDP-resistant lung adenocarcinoma cell (LTEP-P/DDP-1...
May 31, 2017: Biosensors & Bioelectronics
https://www.readbyqxmd.com/read/28597989/discrimination-and-resilience-and-the-needs-of-people-who-identify-as-transgender-a-narrative-review-of-quantitative-research-studies
#20
REVIEW
Edward McCann, Michael Brown
AIMS AND OBJECTIVES: To examine discrimination and resilience experiences of people who identify as transgender and establish potential health service responses. BACKGROUND: People who identify as transgender face many challenges in society in terms of the knowledge, understanding and acceptance of a person's gender identity. DESIGN: A narrative review of quantitative empirical research. METHODS: A comprehensive search of CINAHL, MEDLINE, PsycINFO and Sociological Abstracts electronic databases from 2006 to 2016 was conducted...
June 9, 2017: Journal of Clinical Nursing
keyword
keyword
30804
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"