G wie Gugel

Article for general public (2012)

G-HIN2Vec: Distributed Heterogeneous Graph Representations for Cardholder Transactions

Scientific Conference (2023, March 27)

Graph related tasks, such as graph classification and clustering, have been substantially improved with the advent of graph neural networks (GNNs). However, existing graph embedding models focus on ... [more ▼]

Graph related tasks, such as graph classification and clustering, have been substantially improved with the advent of graph neural networks (GNNs). However, existing graph embedding models focus on homogeneous graphs that ignore the heterogeneity of the graphs. Therefore, using homogeneous graph embedding models on heterogeneous graphs discards the rich semantics of graphs and achieves average performance, especially by utilizing unlabeled information. However, limited work has been done on whole heterogeneous graph embedding as a supervised task. In light of this, we investigate unsupervised distributed representations learning on heterogeneous graphs and propose a novel model named G-HIN2Vec, Graph-Level Heterogeneous Information Network to Vector. Inspired by recent advances of unsupervised learning in natural language processing, G-HIN2Vec utilizes negative sampling technique as an unlabeled approach and learns graph embedding matrix from different predefined meta-paths. We conduct a variety of experiments on three main graph downstream applications on different socio-demographic cardholder features, graph regression, graph clustering, and graph classification, such as gender classification, age, and income prediction, which shows superior performance of our proposed GNN model on real-world financial credit card data. [less ▲]

G72 and its association with major depression and neuroticism in large population-based groups from Germany

in American Journal of Psychiatry (2008), 165(6), 753-762

GaAs nanowhiskers for femtosecond photodetectors and THz emitters

in ASDAM 2012, The Ninth International Conference on Advanced Semiconductor Devices and Microsystems (2012)

Gabapentin reduces the mechanosensitivity of fine afferent nerve fibres in normal and inflamed rat knee joints.

in Pain (2003), 104

Gagner sa vie au volant au risque de la perdre: Les pilotes automobiles européens (années 1920-1930)

in Mouvement Social (2016), 254

This article deals with the emergence of a group of professional automobile pilots in Europe during the Interwar period. During the time, automobile racing was institutionalised and commercialised to a ... [more ▼]

This article deals with the emergence of a group of professional automobile pilots in Europe during the Interwar period. During the time, automobile racing was institutionalised and commercialised to a previously unknown extent, under the supervision of European automobile clubs, industrial groups and journalists. In this context, by following the trajectories of pilots, we study the conditions for exercising this practice – part sport, part social activity. These trajectories are mainly marked by a wide diversity due to the sport’s origins, at the crossroads of changes in bourgeois leisure activities and the unprecedented development of the automobile industry. On the roads and race tracks of Europe, racing team pilots came up against wealthy independent racers, forming a stratified population and a wide range of participants with diverse origins, mobility, motivations and compensation. In the representations of the period, the pilots became the icons of the triumph of the automobile, but they nevertheless took second stage to the industrial groups that employed and equipped them. In this European space that was driven across and appropriated, behind the sports competition that acted as a support, this situation gave rise to large-scale industrial competitions and strategies that benefited the sportsmen but also held them captive. [less ▲]

The Gain from the Drain: Welfare effects of Selective Migration

Scientific Conference (2015)

The Gain from the Drain: Welfare effects of Selective Migration

Presentation (2016, April)

GaInAs Camel Transistors Grown by MOCVD

in Electronics Letters (1989), 25(1989), 1462-1463

Gains and losses of caring for an older relative and the indication for geropsychological intervention

Scientific Conference (2017)

Caring for a close person involves and impacts several aspects and domains of personal life. A scenario that is often sketched here indicates that caring is physically exhausting, demanding time, leaving ... [more ▼]

Caring for a close person involves and impacts several aspects and domains of personal life. A scenario that is often sketched here indicates that caring is physically exhausting, demanding time, leaving no time for leisure, and excluding the carer from further social activities. In this view, caring is strain as it is clearly described by the concept of caregiver burden, and a risk for the psychological and/or physical health of family carers. But caring may also have another side of positive gratification and of fulfilment. To care for another person may represent a meaningful work for both the cared for and the caring person that may also go along with recognition and positive feedback from others. This is the starting point of the present study that addressed a sample of 151 informal carers (n = 111 female) with a mean age of 58 years (SD=14 years) with self-report questionnaire. The measure offered in a first part positive (n=35) and negative aspects (n=23) of caring for a close person and subjects had to rate how much they agree that these aspects are present in their own care giving relationship. Moreover, life satisfaction as well as positive and negative affect were assessed in a second part. Multivariate analyses by factor as well as cluster analyses showed different profiles of gains and losses that were systematically linked to indicators of subjective well-being. Findings will be discussed with respect to their implications for psychosocial intervention in the field of informal care. [less ▲]