Search results for "Library"
showing 10 items of 3069 documents
TB-Structure: Collective Intelligence for Exploratory Keyword Search
2017
In this paper we address an exploratory search challenge by presenting a new (structure-driven) collaborative filtering technique. The aim is to increase search effectiveness by predicting implicit seeker’s intents at an early stage of the search process. This is achieved by uncovering behavioral patterns within large datasets of preserved collective search experience. We apply a specific tree-based data structure called a TB (There-and-Back) structure for compact storage of search history in the form of merged query trails – sequences of queries approaching iteratively a seeker’s goal. The organization of TB-structures allows inferring new implicit trails for the prediction of a seeker’s i…
Developing an Understanding of Organisational Knowledge Creation: A Review Framework
2017
The purpose of this paper is to develop an understanding of the dimensions of organisational knowledge creation. To this end, the literature from numerous bodies of research is reviewed. Over the past 20 years, the literature on organisational knowledge creation has significantly grown and advanced. Many new and conflicting terminologies have evolved to shed more light on the subject. As a result, there are overlaps and conflicts in the literature. The framework suggested in this paper is therefore considered to be a useful means to structure further research on the subject. This paper presents an extensive review of the organisational knowledge creation literature as well as an overview of…
Large‐scale set partitioning problems: Some real‐world instances hide a beneficial structure
2006
In this paper we consider large‐scale set partitioning problems. Our main purpose is to show that real‐world set partitioning problems originating from the container‐trucking industry are easier to tackle in respect to general ones. We show such different behavior through computational experiments: in particular, we have applied both a heuristic algorithm and some exact solution approaches to real‐world instances as well as to benchmark instances from Beasley OR‐library. Moreover, in order to gain an insight into the structure of the real‐world instances, we have performed and evaluated various instance perturbations. Didelės matematinės aibės dalijimo problemų sprendimas, nagrinėjant reali…
Employing artificial neural networks to find reaction coordinates and pathways for self-assembly
2021
Capturing the autonomous self-assembly of molecular building blocks in computer simulations is a persistent challenge, requiring to model complex interactions and to access long time scales. Advanced sampling methods allow to bridge these time scales but typically require to construct accurate low-dimensional representations of the transition pathways. In this work, we demonstrate for the self-assembly of two single-stranded DNA fragments into a ring-like structure how autoencoder architectures based on unsupervised neural networks can be employed to reliably expose transition pathways and to provide a suitable low-dimensional representation. The assembly occurs as a two-step process throug…
eParticipation:Designing and Managing Political Discussion Forums
2010
Author's version of an article published in Social Science Computer Review, 2010, 28 (4), 403-426. Also available from the publisher: http://dx.doi.org/10.1177/0894439309341626 eParticipation is the extension and transformation of participation in political deliberation and decision-making processes through information and communication technologies (ICTs). The most commonly found examples of eParticipation systems are political discussion forums. Although much of the discussion of these technologies is conducted in the eGovernment and eDemocracy literature, political discussion forums present a distinct set of design and management challenges, which relate directly to information systems c…
La recherche en Management du Sport en « francophonie » : L’avènement d’un écosystème
2021
This paper aims to synthesize research on the Management of Sports Organizations (MOS) in France. Three parts structure this voluntarily simplifying contribution, very personal and collective at the same time through the direct and indirect contributions of many researchers. First of all, two historical parts between the 1960s and the 2000s provide a first disciplinary and then thematic perspective in order to make a French-speaking retrospective of the dynamics of scientific production. A last part in the form of a conclusion and an opening seeks to characterize the recent dynamics of MOS research (specialization, interaction, diversification) according to disciplines and/or objects of stu…
Information behaviour of the millennial generation: a scoping review of medical residents and their use of social media.
2018
Background Medical residents can offer ideas for new information services, as most of them are 'digital natives', although reviews of the use of social media in health care settings do not provide data on their information behaviour. Objective A scoping review aimed at providing a research map for the information behaviour of medical residents and their use of social media, listing the aspects of the information behaviour studied and the theories and methods used. Methods A search was carried out in pubmed, embase, cinahl and lisa in April of 2018, with the results limited to the period from 2010 onwards. Results Thirty-nine relevant articles from 38 different studies were identified. The p…
Sympathetic neurons can produce and respond to interleukin 6
1998
Neuronal expression of cytokines is an area of active investigation in the contexts of development, disease, and normal neural function. Although cultured rat sympathetic neurons respond very weakly to exogenous interleukin 6 (IL-6), we find that addition of soluble IL-6 receptor (sIL-6R) and IL-6 enhances neuronal survival in the absence of nerve growth factor. Neutralizing monoclonal antibodies against IL-6 block these effects. Addition of IL-6 and sIL-6R also induces a subset of neuropeptide and transmitter synthetic enzyme mRNAs identical to that demonstrated for leukemia inhibitory factor, ciliary neurotrophic factor, and oncostatin M. Both of these effects are duplicated by addition o…
Petro-mineralogical controls on coda attenuation in volcanic rock samples
2021
SUMMARY Seismic attenuation measurements, especially those obtained from coda decay analysis, are becoming a key data source for the characterization of the heterogeneous Earth due to their sensitivity to small-scale heterogeneities. However, the relation between the scattering attenuation measured from coda waves and physical rock properties is still unclear. The goal of this study is to identify the main petrophysical and mineralogical factors controlling coda attenuation in volcanic rocks at the laboratory scale, as a necessary step before modelling seismic waves in real volcanic media. Coda wave attenuation was estimated from ultrasonic S-wave waveforms. To quantify the heterogeneity of…
Territorial Governance, E-Government and Sustainable Development Policy: A System Dynamics Approach
2013
Part 1: Research Foundations; International audience; The goal of this paper is to demonstrate how system dynamics modelling can be used in e-government policy and systems as an aid to spport territorial ananlysis, planning and governance, sustainable performance in urban areas and the assessment of policy outcomes. Topics such as renewable energy, efficiency, the design and exploitation of urban energy, water and waste management infrastructure and the alignment of different stakeholders provide relevant fields of study for the analysis of this paper. Specifically, we reflect upon the way in which a preliminary dynamic performance management model of an exemplary case study can be used to …