scholarly journals Uncertainty visualization of gaze estimation to support operator-controlled calibration

2018 ◽  
Vol 10 (5) ◽  
Author(s):  
Almoctar Hassoumi ◽  
Vsevolod Peysakhovich ◽  
Christophe Hurter
Keyword(s):  
Qualitative Evaluation ◽  
Point Of View ◽  
Angular Error ◽  
Qualitative Assessment ◽  
Gaze Estimation ◽  
Uncertainty Visualization ◽  
Estimation Uncertainty ◽  
The Mean ◽  
Gaze Position ◽  
Do So

      In this paper, we investigate how visualization assets can support the qualitative evaluation of gaze estimation uncertainty. Although eye tracking data are commonly available, little has been done to visually investigate the uncertainty of recorded gaze information. This paper tries to fill this gap by using innovative uncertainty computation and visualization. Given a gaze processing pipeline, we estimate the location of this gaze position in the world camera. To do so we developed our own gaze data processing which give us access to every stage of the data transformation and thus the uncertainty computation. To validate our gaze estimation pipeline, we designed an experiment with 12 participants and showed that the correction methods we proposed reduced the Mean Angular Error by about 1.32 cm, aggregating all 12 participants’ results. The Mean Angular Error is 0.25° (SD=0.15°) after correction of the estimated gaze. Next, to support the qualitative assessment of this data, we provide a map which codes the actual uncertainty in the user point of view. 

scholarly journals Value of adding the apparent diffusion coefficient to capsular contact for the prediction of extracapsular extension in prostate cancer

2020 ◽  
Vol 53 (6) ◽  
pp. 381-389
Author(s):  
Antonio Cordeiro da Silva Filho ◽  
Tamara Oliveira Rocha ◽  
Jorge Elias Jr ◽  
Marcus Vinicius de Castro Barros ◽  
Alfredo Ribeiro Silva ◽  
...  
Keyword(s):  
Prostate Cancer ◽  
Diffusion Coefficient ◽  
Apparent Diffusion Coefficient ◽  
Diagnostic Accuracy ◽  
Area Under The Curve ◽  
Qualitative Evaluation ◽  
Qualitative Assessment ◽  
Extracapsular Extension ◽  
Apparent Diffusion ◽  
The Mean

Abstract Objective: To determine whether evaluating the mean apparent diffusion coefficient (ADC) together with capsular contact (CC) adds value in the prediction of microscopic extracapsular extension (ECE) of prostate cancer. Materials and Methods: Between January 2012 and December 2016, 383 patients underwent multiparametric magnetic resonance imaging (mpMRI) of the prostate. A total of 67 patients were selected for inclusion. Two radiologists (observers 1 and 2), working independently, performed qualitative and quantitative analyses of ECE, macroscopic ECE, and microscopic ECE. A third radiologist assessed the correlation with the clinical data, and two experienced pathologists reviewed all histopathological findings. Results: Among the 67 patients, mpMRI showed lesions that were confined to the capsule in 44 (66.7%), had microscopic ECE in 12 (17.9%), and had macroscopic ECE in 11 (16.4%). There were no significant differences, in terms of the diagnostic accuracy, as measured by determining the area under the curve (AUC), of CC on T2-weighted images (CCT2), CC on diffusion-weighted imaging (CCDWI), and the mean ADC for the prediction of microscopic ECE, between observer 1 (AUC of 0.728, 0.691, and 0.675, respectively) and observer 2 (AUC of 0.782, 0.821, and 0.799, respectively). Combining the mean ADC with the CCT2 or CCDWI did not improve the diagnostic accuracy for either observer. There was substantial interobserver agreement for the qualitative evaluation of ECE, as demonstrated by the kappa statistic, which was 0.77 (0.66-0.87). The diagnostic accuracy (AUC) of the qualitative assessment for predicting microscopic ECE was 0.745 for observer 1 and 0.804 for observer 2, and the difference was less than significant. In a multivariate analysis, none of clinical or imaging parameters were found to be associated with ECE. Conclusion: For the detection of microscopic ECE on mpMRI, CC appears to have good diagnostic accuracy, especially if the observer has considerable experience. Adding the mean ADC to the CCT2 or CCDWI does not seem to provide any significant improvement in that diagnostic accuracy.

My questions about emotionally focused couple therapy (EFT) and a few answers

2020 ◽  
Vol 14 (1) ◽  
pp. 23-41
Author(s):  
Anne Power
Keyword(s):  
Object Relations ◽  
Couple Therapy ◽  
Point Of View ◽  
Same Sex ◽  
Heterosexual Couple ◽  
Emotionally Focused Couple Therapy ◽  
Emotionally Focused ◽  
Do So

This article provides a brief overview of emotionally focused couple therapy (EFT) along with some reservations about the method. The article considers questions and critiques which are often raised about the model and does so from the point of view of a practitioner new to the method, who has become convinced of the value of the approach whilst not wanting to jettison an object relations understanding. The segregation between different groups of attachment researchers and practitioners is noted. To provide variation I occasionally use the term "marital" but I do so loosely, referring to a couple bond rather than to a wedded pair. The systemic pattern between a pursuer and a withdrawer which is discussed here could refer to a same-sex or a heterosexual couple, despite the different gender alignments which operate in each case.

Value of quantitative and qualitative assessment of protein in workers’ diet

2019 ◽  
pp. 97-103
Author(s):  
S. E. Dubenko ◽  
T. V. Mazhaeva ◽  
G. M. Nasybullina
Keyword(s):  
Amino Acids ◽  
Physical Exertion ◽  
Qualitative Evaluation ◽  
Essential Amino Acids ◽  
Qualitative Assessment ◽  
Health State ◽  
Occupational Hazards ◽  
Occupational Groups ◽  
Branched Chain ◽  
Amino Acid Contents

Th e authors reviewed literature on methodic evaluations of human requirements of protein, based on Russian and foreign data bases (Scopus, Web of Science, MedLine, RINTs, eLIBRA RY) via key words in article headings, and evaluated quality and quantity of protein in diets of workers exposed to occupational hazards. Average requirements of amino acids and their additional intake for bett er health state in certain occupational groups remains a topical problem. Th e article covers list of methods for quantitative and qualitative evaluation of proteins in foods and diets. Findings are diff erences in approaches to protein quantity regulation in Russian Federation and WHO/FAO/UNU (protein normal level in RF is higher, depends on physical exertion, with lower quantity of amino acids with branched chain in structure of essential amino acids). Th erapeutic and prophylactic diet corresponding to Order N46 of Russian Health Ministry for main occupations of metallurgic workshops can be considered as high-proteous and balanced in amino acid contents. Necessity is to study adequate intake of amino acids in workers exposed to occupational hazards, for improving protective and adaptative body mechanisms, and prevention of occupational and occupationally conditioned diseases.

Der Sommer und Herbst 2003 aus phänologischer Sicht | Summer and autumn 2003 from a phenological point of view

2004 ◽  
Vol 155 (5) ◽  
pp. 142-145 ◽  
Author(s):  
Claudio Defila
Keyword(s):  
Time Series ◽  
New Record ◽  
Point Of View ◽  
Late Spring ◽  
Mean Deviation ◽  
Leaf Shedding ◽  
The Mean ◽  
Very High ◽  
Selection Of

The record-breaking heatwave of 2003 also had an impact on the vegetation in Switzerland. To examine its influences seven phenological late spring and summer phases were evaluated together with six phases in the autumn from a selection of stations. 30% of the 122 chosen phenological time series in late spring and summer phases set a new record (earliest arrival). The proportion of very early arrivals is very high and the mean deviation from the norm is between 10 and 20 days. The situation was less extreme in autumn, where 20% of the 103 time series chosen set a new record. The majority of the phenological arrivals were found in the class «normal» but the class«very early» is still well represented. The mean precocity lies between five and twenty days. As far as the leaf shedding of the beech is concerned, there was even a slight delay of around six days. The evaluation serves to show that the heatwave of 2003 strongly influenced the phenological events of summer and spring.

scholarly journals Behavior Modeling for a Beacon-Based Indoor Location System

Sensors ◽  
2021 ◽  
Vol 21 (14) ◽  
pp. 4839
Author(s):  
Aritz Bilbao-Jayo ◽  
Aitor Almeida ◽  
Ilaria Sergi ◽  
Teodoro Montanaro ◽  
Luca Fasano ◽  
...  
Keyword(s):  
Behavior Modeling ◽  
Percentage Error ◽  
Location Prediction ◽  
Indoor Environments ◽  
Prediction System ◽  
Indoor Location ◽  
The Mean ◽  
Locating System ◽  
Monitoring Devices ◽  
Do So

In this work we performed a comparison between two different approaches to track a person in indoor environments using a locating system based on BLE technology with a smartphone and a smartwatch as monitoring devices. To do so, we provide the system architecture we designed and describe how the different elements of the proposed system interact with each other. Moreover, we have evaluated the system’s performance by computing the mean percentage error in the detection of the indoor position. Finally, we present a novel location prediction system based on neural embeddings, and a soft-attention mechanism, which is able to predict user’s next location with 67% accuracy.

Tort’s Indifference: Conformity, Compliance, and Civil Recourse

2020 ◽  
Vol 13 (1) ◽  
pp. 1-30
Author(s):  
Ahson Azmat
Keyword(s):  
Practical Reasoning ◽  
Tort Law ◽  
Point Of View ◽  
Reasons For Action ◽  
Internal Point ◽  
Loss Allocation ◽  
Fine Grained ◽  
Normative Force ◽  
Extensional Structure ◽  
Do So

AbstractLeading accounts of tort law split cleanly into two seams. Some trace its foundations to a deontic form of morality; others to an instrumental, policy-oriented system of efficient loss allocation. An increasingly prominent alternative to both seams, Civil Recourse Theory (CRT) resists this binary by arguing that tort comprises a basic legal category, and that its directives constitute reasons for action with robust normative force. Using the familiar question whether tort’s directives are guidance rules or liability rules as a lens, or prism, this essay shows how considerations of practical reasoning undermine one of CRT’s core commitments. If tort directives exert robust normative force, we must account for its grounds—for where it comes from, and why it obtains. CRT tries to do so by co-opting H.L.A. Hart’s notion of the internal point of view, but this leveraging strategy cannot succeed: while the internal point of view sees legal directives as guides to action, tort law merely demands conformity. To be guided by a directive is to comply with it, not conform to it, so tort’s structure blocks the shortcut to normativity CRT attempts to navigate. Given the fine-grained distinctions the theory makes, and with the connection between its claims and tort’s requirements thus severed, CRT faces a dilemma: it’s either unresponsive to tort’s normative grounds, or it’s inattentive to tort’s extensional structure.

scholarly journals BAYESIAN INFERENCE FOR THE TANGENT PORTFOLIO

2018 ◽  
Vol 21 (08) ◽  
pp. 1850054 ◽  
Author(s):  
DAVID BAUDER ◽  
TARAS BODNAR ◽  
STEPAN MAZUR ◽  
YAREMA OKHRIN
Keyword(s):  
Bayesian Inference ◽  
Point Of View ◽  
Posterior Distributions ◽  
Conditional Distributions ◽  
Linear Combinations ◽  
Conjugate Priors ◽  
Mean And Variance ◽  
The Mean ◽  
Stochastic Representations ◽  
Mean Vector

In this paper, we consider the estimation of the weights of tangent portfolios from the Bayesian point of view assuming normal conditional distributions of the logarithmic returns. For diffuse and conjugate priors for the mean vector and the covariance matrix, we derive stochastic representations for the posterior distributions of the weights of tangent portfolio and their linear combinations. Separately, we provide the mean and variance of the posterior distributions, which are of key importance for portfolio selection. The analytic results are evaluated within a simulation study, where the precision of coverage intervals is assessed.

Hitting the right note for child and adolescent mental and emotional wellbeing: a formative qualitative evaluation of Sistema Scotland’s “Big Noise” orchestral programme

2016 ◽  
Vol 15 (1) ◽  
pp. 25-36 ◽  
Author(s):  
Christopher Harkins ◽  
Lisa Garnham ◽  
Aileen Campbell ◽  
Carol Tannahill
Keyword(s):  
Mental Health ◽  
Mental Health Problems ◽  
Early Stage ◽  
Qualitative Evaluation ◽  
Qualitative Assessment ◽  
Potential Contribution ◽  
Emotional Wellbeing ◽  
Structured Interviews ◽  
Content Type ◽  
Causal Pathways

Purpose – Previous research emphasises the need for preventative interventions to reduce mental health problems among disadvantaged children and adolescents. There is however little consensus concerning the delivery and impacts of such interventions particularly non-clinical, arts-based models delivered within community settings. The purpose of this paper is to begin to address this deficit through a qualitative assessment of the short- to medium-term impacts to participants’ mental and emotional wellbeing within Sistema Scotland’s Big Noise orchestral programme. Design/methodology/approach – Semi-structured interviews, observation, participant drawing exercise, participatory filmmaking, focus group and analysis of programme engagement were undertaken to examine the mental and emotional wellbeing impacts of the programme which are observable at this early stage of programme delivery and participants’ lives. Findings – The qualitative findings indicate that participation in the Big Noise programme enhances participant mental and emotional wellbeing in three ways; first, the happiness and enjoyment of taking part in the programme and orchestra, particularly from music making; second, the security, belonging and relationships fostered through participation; the quality of musician/participant relationship is important here as is programme design which enables support, routine and structure; and third, increased pride, confidence and self-esteem, as a result of acquiring difficult musical skills, receiving regular praise and having frequent opportunities to demonstrate these acquired skills through regular orchestral performances. Originality/value – There is little evidence or understanding of community-based, preventative, arts interventions like Big Noise: their delivery, their life-course impacts and their potential contribution to mental health and to addressing social and health inequalities. The causal pathways in the field are under-theorised. These early findings are important as they serve as an important basis from which to consider the programme’s wider and longer term impacts, which will be assessed through an on-going longitudinal, mixed method summative evaluation.

scholarly journals Cultural Materialism in Lorca’s Poetry

2020 ◽  
Vol 3 (2) ◽  
pp. 682-691
Author(s):  
Mahnaz Soqandi ◽  
Fatemeh Sadat Basirizadeh
Keyword(s):  
Ethnic Studies ◽  
Fine Arts ◽  
Point Of View ◽  
Cultural Materialism ◽  
Social Mechanism ◽  
Work Of Art ◽  
External Point ◽  
Language And Politics ◽  
Mechanism Function ◽  
Do So

The aim of the present research is to investigate Lorca’s poem from cultural materialist point of view. To do so, the researcher investigates how culture and social mechanism function in the context in which the poems have been written. Cultural materialism attempts to investigate different aspects of society, art, economy, language, and politics from an external point of view and analyze them to find out how identity and self are shaped accordingly. Cultural materialism is demonstrated in different categories including gender, ethnic studies, postmodernism, postcolonialism, and other fields. Cultural materialism highlights the relation between a work of art and the ideological system in which it has been created. In other words, cultural, social, religious and several other factors must be accounted for while interpreting a work of art. Consequently, how cultural dogma functions within fine arts in order to produce the internal textures is uncovered through cultural materialism. In Lorca’s poems, the contents have symbolic and metaphoric mechanisms which can be interpreted through material analysis.

scholarly journals The Relationship between Performance of the Administrative System and National Authority of Governments: An Islamic Point Of View

2018 ◽  
Vol 6 (4) ◽  
pp. 5-13
Author(s):  
Mahtab Jafari
Keyword(s):  
Practical Purpose ◽  
Two Dimensions ◽  
Point Of View ◽  
Theoretical Research ◽  
Administrative System ◽  
National Authority ◽  
Functional Dimension ◽  
Library Resources ◽  
The Relationship ◽  
Do So

Each government consists of two dimensions: 1) a sructural dimension that involves policy- and decision-making bodies and, 2) a functional dimension that is a set of government institutions and administrations. Also, national authority in a country is an outcome of three components, including legitimacy, acceptance, and efficiency of its government. The authority of governments is not merely limited to their structural legitimacy and acceptance; but, their functional dimension and the performance of their administrations also play a crucial role in building and strengthening their legitimacy. Therefore, the aim of the present study is to investigate how the administrative system of a government affects its national authority, with an emphasis on the Islamic point of view. To do so, this research has been carried out within the framework of theoretical research with practical purpose. The research method of the current study was descriptive-analytical. In the present study, the relationship between two variables – namely, “administrative system” and “national authority”– has been investigated within the framework of causal research. Due to the theoretical nature of this study, the resources used mostly include documents and library resources. The results of this study indicate that there is a direct and causal relationship between the national authority of governments (effect) and the performance of their administrative system (cause). Also, this relationship reveals how the administrative system affects national authority.

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