scholarly journals State of the Art of Mobility as a Service (MaaS) Ecosystems and Architectures—An Overview of, and a Definition, Ecosystem and System Architecture for Electric Mobility as a Service (eMaaS)

2019 ◽  
Vol 11 (1) ◽  
pp. 7 ◽  
Author(s):  
José Roberto Reyes García ◽  
Gadi Lenz ◽  
Steven P. Haveman ◽  
Gerrit Maarten Bonnema
Keyword(s):  
System Architecture ◽  
State Of The Art ◽  
The State ◽  
Electric Mobility ◽  
Passenger Transport ◽  
Shared Mobility ◽  
Complex Integration ◽  
Definition Of ◽  
Common Architecture ◽  
Further Development

Mobility as a Service (MaaS) is a concept that aligns with both current and future mobility demands of users, namely intermodal, personalized, on-demand and seamless. Although the number of shared mobility, electric mobility and multimodal passenger transport users is rapidly growing, until now, the list of MaaS and electric Mobility as Service (eMaaS) providers is quite short. This could partly be explained by the lack of a common architecture that facilitates the complex integration of all actors involved in the (e)MaaS ecosystem. The goal of this publication is to give an overview of the state of the art regarding (e)MaaS’ ecosystems and architectures. Moreover, it aims to support the further development of eMaaS by proposing a definition and a novel system architecture for eMaaS. Firstly, the state of the art of the MaaS ecosystem is reviewed. Secondly, the eMaaS ecosystem that builds upon our definition of eMaaS is described and the MaaS system- and technical- architectures found in literature are reviewed. Finally, an eMaaS architecture that focuses on the integration of MaaS and electric mobility systems is presented. With the definition, ecosystem and system architecture presented in this work, the aim is to support the further development of the eMaaS concept.

scholarly journals A Benchmark and Evaluation of Non-Rigid Structure from Motion

2020 ◽  
Author(s):  
Sebastian Hoppe Nesgaard Jensen ◽  
Mads Emil Brix Doest ◽  
Henrik Aanæs ◽  
Alessio Del Bue
Keyword(s):  
Computer Vision ◽  
Structure From Motion ◽  
State Of The Art ◽  
The State ◽  
Quality Data ◽  
Data Set ◽  
Rigid Structure ◽  
Public Data ◽  
3D Information ◽  
Further Development

AbstractNon-rigid structure from motion (nrsfm), is a long standing and central problem in computer vision and its solution is necessary for obtaining 3D information from multiple images when the scene is dynamic. A main issue regarding the further development of this important computer vision topic, is the lack of high quality data sets. We here address this issue by presenting a data set created for this purpose, which is made publicly available, and considerably larger than the previous state of the art. To validate the applicability of this data set, and provide an investigation into the state of the art of nrsfm, including potential directions forward, we here present a benchmark and a scrupulous evaluation using this data set. This benchmark evaluates 18 different methods with available code that reasonably spans the state of the art in sparse nrsfm. This new public data set and evaluation protocol will provide benchmark tools for further development in this challenging field.

scholarly journals Novice Programming Environments

2018 ◽  
pp. 1-41 ◽  
Author(s):  
Judith Good
Keyword(s):  
Young People ◽  
State Of The Art ◽  
The State ◽  
Programming Environments ◽  
Children And Young People ◽  
Teaching And Research ◽  
The Social ◽  
Novice Programming ◽  
Further Development ◽  
Looking Glass

In 2011, the author published an article that looked at the state of the art in novice programming environments. At the time, there had been an increase in the number of programming environments that were freely available for use by novice programmers, particularly children and young people. What was interesting was that they offered a relatively sophisticated set of development and support features within motivating and engaging environments, where programming could be seen as a means to a creative end, rather than an end in itself. Furthermore, these environments incorporated support for the social and collaborative aspects of learning. The article considered five environments—Scratch, Alice, Looking Glass, Greenfoot, and Flip—examining their characteristics and investigating the opportunities they might offer to educators and learners alike. It also considered the broader implications of such environments for both teaching and research. In this chapter, the author revisits the same five environments, looking at how they have changed in the intervening years. She considers their evolution in relation to changes in the field more broadly (e.g., an increased focus on “programming for all”) and reflects on the implications for teaching, as well as research and further development.

Visual Saliency and Perceptual Quality Assessment of 3D Meshes

2018 ◽  
pp. 38-115
Author(s):  
Anass Nouri ◽  
Christophe Charrier ◽  
Olivier Lezoray
Keyword(s):  
Quality Assessment ◽  
State Of The Art ◽  
Saliency Detection ◽  
Visual Saliency ◽  
Ground Truth ◽  
The State ◽  
Perceptual Quality ◽  
Adaptive Smoothing ◽  
Definition Of ◽  
Mesh Database

This chapter concerns the visual saliency and the perceptual quality assessment of 3D meshes. Firstly, the chapter proposes a definition of visual saliency and describes the state-of-the-art methods for its detection on 3D mesh surfaces. A focus is made on a recent model of visual saliency detection for 3D colored and non-colored meshes whose results are compared with a ground-truth saliency as well as with the literature's methods. Since this model is able to estimate the visual saliency on 3D colored meshes, named colorimetric saliency, a description of the construction of a 3D colored mesh database that was used to assess its relevance is presented. The authors also describe three applications of the detailed model that respond to the problems of viewpoint selection, adaptive simplification and adaptive smoothing. Secondly, two perceptual quality assessment metrics for 3D non-colored meshes are described, analyzed, and compared with the state-of-the-art approaches.

Developing the State-of-the-Art Space Suit

2020 ◽  
pp. 15-34
Author(s):  
Bill Ayrey
Keyword(s):  
High Altitude ◽  
Air Force ◽  
State Of The Art ◽  
The State ◽  
Space Suit ◽  
Definition Of

What is the definition of a space suit? This chapter explains and chronicles the development of the model XMC2-ILC pressure suit for the early U.S. Air Force high-altitude aircraft.

Innovation Diffusion and New Product Growth Models in Marketing

1979 ◽  
Vol 43 (4) ◽  
pp. 55-68 ◽  
Author(s):  
Vijay Mahajan ◽  
Eitan Muller
Keyword(s):  
Innovation Diffusion ◽  
State Of The Art ◽  
Growth Models ◽  
New Product ◽  
Diffusion Models ◽  
The State ◽  
Development And Validation ◽  
Further Development

This paper assesses the state-of-the-art of the diffusion models of new product acceptance. A number of issues related to the further development and validation of these models are discussed.

12. PIDGINS AND CREOLES AS MODELS OF LANGUAGE CHANGE: THE STATE OF THE ART

2003 ◽  
Vol 23 ◽  
pp. 202-212 ◽  
Author(s):  
John H. McWhorter
Keyword(s):  
Language Change ◽  
State Of The Art ◽  
The State ◽  
Generative Syntax ◽  
Distinct Process ◽  
Definition Of ◽  
Creole English

The interface between creole studies and language change has been a tumultuous area since the late 1990s. Evidence has been found confirming that children created Hawaiian Creole English; the “decreolization” approach to the creole continuum has become largely obsolete; work on creoles and grammaticalization has expanded beyond its former concentration on Tok Pisin; creolists working within the generative syntax tradition have questioned whether creolization is a distinct process at all; other work argues that creoles are synchronically as well as sociohistorically definable; and the very centrality of plantation contexts' sociology to creole genesis has been questioned. Concepts often taken as assumptions ten years ago are now widely questioned, even the very definition of creole itself.

Assessing the Needs of the Elderly: State of the Art

1980 ◽  
Vol 11 (1) ◽  
pp. 65-76 ◽  
Author(s):  
Virginia C. Little
Keyword(s):  
Data Base ◽  
State Of The Art ◽  
The Elderly ◽  
Professional Role ◽  
The State ◽  
Role Relationship ◽  
Statistical Measures ◽  
Common Problems ◽  
Definition Of

Need is a multi-faceted, multi-dimensional concept. National and international efforts to assess the needs of the elderly confront common problems: lack of an accepted definition of terms such as “need,” “want” and “demand;” perceptions which vary with age, professional role, relationship and time; a range of methodologies encompassing rational, empirical and relativistic approaches, as well as subjective, objective and statistical measures. Research instruments are being refined and shared, but the state of the art remains in its infancy. Use of index of incapacity measures appears to offer the best data base for planning needed services.

scholarly journals A Review of Toxins from Cnidaria

Marine Drugs ◽  
2020 ◽  
Vol 18 (10) ◽  
pp. 507 ◽  
Author(s):  
Isabella D’Ambra ◽  
Chiara Lauritano
Keyword(s):  
State Of The Art ◽  
Skin Irritation ◽  
The State ◽  
Future Research ◽  
Human Beings ◽  
Lethal Effects ◽  
Ancient Times ◽  
Definition Of ◽  
Available Information

Cnidarians have been known since ancient times for the painful stings they induce to humans. The effects of the stings range from skin irritation to cardiotoxicity and can result in death of human beings. The noxious effects of cnidarian venoms have stimulated the definition of their composition and their activity. Despite this interest, only a limited number of compounds extracted from cnidarian venoms have been identified and defined in detail. Venoms extracted from Anthozoa are likely the most studied, while venoms from Cubozoa attract research interests due to their lethal effects on humans. The investigation of cnidarian venoms has benefited in very recent times by the application of omics approaches. In this review, we propose an updated synopsis of the toxins identified in the venoms of the main classes of Cnidaria (Hydrozoa, Scyphozoa, Cubozoa, Staurozoa and Anthozoa). We have attempted to consider most of the available information, including a summary of the most recent results from omics and biotechnological studies, with the aim to define the state of the art in the field and provide a background for future research.

scholarly journals Evaluation Methods for the Impacts of Shared Mobility: Classification and Critical Review

2020 ◽  
Vol 12 (24) ◽  
pp. 10504
Author(s):  
Anastasia Roukouni ◽  
Gonçalo Homem de Almeida Correia
Keyword(s):  
State Of The Art ◽  
The State ◽  
Added Value ◽  
Research And Practice ◽  
Shared Mobility ◽  
The World ◽  
Different Types ◽  
Pros And Cons

In recent years, shared mobility services have had a growing presence in cities all over the world. Developing methodologies to measure and evaluate the impacts of shared mobility has therefore become of critical importance for city authorities. This paper conducts a thorough review of the different types of methods that can be used for this evaluation and suggests a classification of them. The pros and cons of each method are also discussed. The added value of the paper is twofold; first, we provide a systematic recording of the state of the art and the state of the practice regarding the evaluation of the impacts of shared mobility, from the perspective of city authorities, reflecting on their role, needs, and expectations. Second, by identifying the existing gaps in the literature, we highlight the specific needs for research and practice in this field that can help society figure out the role of urban shared mobility.

scholarly journals A review of the state-of-the-art in automatic post-editing

2020 ◽  
Author(s):  
Félix do Carmo ◽  
Dimitar Shterionov ◽  
Joss Moorkens ◽  
Joachim Wagner ◽  
Murhaf Hossari ◽  
...  
Keyword(s):  
Machine Translation ◽  
State Of The Art ◽  
The State ◽  
Definition Of ◽  
Translation Systems

AbstractThis article presents a review of the evolution of automatic post-editing, a term that describes methods to improve the output of machine translation systems, based on knowledge extracted from datasets that include post-edited content. The article describes the specificity of automatic post-editing in comparison with other tasks in machine translation, and it discusses how it may function as a complement to them. Particular detail is given in the article to the five-year period that covers the shared tasks presented in WMT conferences (2015–2019). In this period, discussion of automatic post-editing evolved from the definition of its main parameters to an announced demise, associated with the difficulties in improving output obtained by neural methods, which was then followed by renewed interest. The article debates the role and relevance of automatic post-editing, both as an academic endeavour and as a useful application in commercial workflows.

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