Search results for "Measures"

Investigación en la escuela

2011

La realización de experiencias de interacción directa con aspectos concretos de la realidad resulta imprescindible cuando se pretende lograr cambios profundos en actitudes y comportamientos, como los que persigue la educación para la sostenibilidad. Para dichos cambios no bastan, sin embargo, algunas experiencias escolares (dentro o fuera del aula) favorecedoras de las adquisiciones conceptuales y procedimentales: se precisa la participación en acciones reales. La Educación para la Sostenibilidad aparece así como una dimensión que a la vez exige y propicia la implicación de los estudiantes en acciones reales como forma particularmente eficaz de “aprender con experiencias”. Este trabajo pret…

Lp-uniqueness for elliptic operators with unbounded coefficients in RN

AbstractLet A be an elliptic operator with unbounded and sufficiently smooth coefficients and let μ be a (sub)-invariant measure of the operator A. In this paper we give sufficient conditions guaranteeing that the closure of the operator (A,Cc∞(RN)) generates a sub-Markovian strongly continuous semigroup of contractions in Lp(RN,μ). Applications are given in the case when A is a generalized Schrödinger operator.

Fuzzy Data Fusion for Real-World Mapping Using 360° Rotating Ultrasonic Sensor

1997

Abstract Mobile robot perception of the external environment is limited by the features of the used sensor. An useful technique used to improve robot perception is data fusion. This paper presents an approach to build a map of an unknown environment applying fuzzy data fusion methods to data acquired through an ultrasonic sensor. Conditioning of these data and motion control of the mobil robot by fuzzy data fusion are also described. The resulting two dimensional map is used for path planning and navigation. The proposed approach is exrperimentally tested using real distance measures acquired by a 360° rotating sensor.

Universal N-partite d-level pure-state entanglement witness based on realistic measurement settings

2018

Entanglement witnesses are operators that are crucial for confirming the generation of specific quantum systems, such as multipartite and high-dimensional states. For this reason, many witnesses have been theoretically derived which commonly focus on establishing tight bounds and exhibit mathematical compactness as well as symmetry properties similar to that of the quantum state. However, for increasingly complex quantum systems, established witnesses have lacked experimental achievability, as it has become progressively more challenging to design the corresponding experiments. Here, we present a universal approach to derive entanglement witnesses that are capable of detecting the presence …

Measuring Female Entrepreneurs’ Happiness from Online Feedback

2019

Entrepreneurship provides an important solution to the unemployment problem. This is also very important in economic growth. It has financial, psychological and social risks while taking the situation into consideration. In addition, women’s participation in the work force has a vital importance in Turkey’s national income. Nearly 8.5% of women are in management, or in decision-making positions. It is important to measure happiness of these female workforce in order to understand and manage their feelings. Our previous study investigated successful women happiness and ideas about being entrepreneurial women in Turkey to discover the factors of the happy women entrepreneurs’ success in busin…

Evaluation of Female Entrepreneurs’ Emotional Feedback

2018

Female unemployment rates are very high in Turkey. Women’s participation in the work force will not only increase the national income but also increase the number of female entrepreneurs in business life to join what is traditionally considered a man’s world. Although there are few (only about 8.5%) women in management, there are women in top and decision-making positions. To encourage Turkish women into entrepreneurship, there are third-party online organizations which share and publicize online success stories of Turkish female entrepreneurs. This research aims to discover the factors related to female entrepreneurs’ success in business life. The aim of the research is to evaluate female …

The Association Between Epigenetic Clocks and Physical Functioning in Older Women: A 3-Year Follow-up

2021

Abstract Background Epigenetic clocks are composite markers developed to predict chronological age or mortality risk from DNA methylation (DNAm) data. The present study investigated the associations between 4 epigenetic clocks (Horvath’s and Hannum’s DNAmAge and DNAm GrimAge and PhenoAge) and physical functioning during a 3-year follow-up. Method We studied 63- to 76-year-old women (N = 413) from the Finnish Twin Study on Aging. DNAm was measured from blood samples at baseline. Age acceleration (AgeAccel), that is, discrepancy between chronological age and DNAm age, was determined as residuals from linear model. Physical functioning was assessed under standardized laboratory conditions at b…

Assessment of water shortage in urban areas

2007

Recent history has demonstrated that extreme hydrological events such as floods and droughts can create additional stress on water supplies essential for human and ecosystem health. As stated several times by European Environmental Agency, the prudent and efficient use of water is thus an important issue in Europe and a number of policies and mechanisms have been used or have been formulated to ensure sustainable use of water in the long term. Urban uses are responsible of almost the 17% of the total European fresh water consumption and they are rapidly growing depending on the extension of urban areas and concentration of population in cities. The present chapter will discuss the phases in…

CUDA-Accelerated Alignment of Subsequences in Streamed Time Series Data

2014

Euclidean Distance (ED) and Dynamic Time Warping (DTW) are cornerstones in the field of time series data mining. Many high-level algorithms like kNN-classification, clustering or anomaly detection make excessive use of these distance measures as subroutines. Furthermore, the vast growth of recorded data produced by automated monitoring systems or integrated sensors establishes the need for efficient implementations. In this paper, we introduce linear memory parallelization schemes for the alignment of a given query Q in a stream of time series data S for both ED and DTW using CUDA-enabled accelerators. The ED parallelization features a log-linear calculation scheme in contrast to the naive …

GEM

2014

The widespread use of digital sensor systems causes a tremendous demand for high-quality time series analysis tools. In this domain the majority of data mining algorithms relies on established distance measures like Dynamic Time Warping (DTW) or Euclidean distance (ED). However, the notion of similarity induced by ED and DTW may lead to unsatisfactory clusterings. In order to address this shortcoming we introduce the Gliding Elastic Match (GEM) algorithm. It determines an optimal local similarity measure of a query time series Q and a subject time series S. The measure is invariant under both local deformation on the measurement-axis and scaling in the time domain. GEM is compared to ED and…