Development and Implementation of a Multi-Level Roadway Segmentation Methodology

2019 ◽  
Vol 2673 (12) ◽  
pp. 570-583
Author(s):  
Reza Omrani ◽  
Amer Shalaby ◽  
Goran Nikolic ◽  
Ali Hadayeghi
Keyword(s):  
Dynamic Segmentation ◽  
Common Definition ◽  
Road Geometry ◽  
Segmentation Approach ◽  
Micro Level ◽  
Multi Level ◽  
Traffic Composition ◽  
Definition Of ◽  
Spatial Referencing ◽  
Traffic Operation

The reliability and applicability of traffic operation analyses depends on their ability to integrate relevant input from disparate databases in a seamless and automated manner. Inputs include information on road geometry, traffic composition, and spatial referencing. These databases are collected by different agencies for different purposes. As a result, a common definition of roadway segments is lacking across various applications. This paper developed a systematic segmentation methodology that considers the needs of various operational and planning studies. A multi-level dynamic segmentation approach has been developed to address different levels of requirements for various studies: at the micro level, referring to the smallest roadway segmentation for traffic simulation studies; at the meso level, representing a combination of several micro segments for traffic operation studies; and, at the macro level, corresponding to planning studies. In this paper, the proposed methodology for the segmentation of freeway and arterial corridors in Ontario (Canada) is demonstrated. At each level, several criteria were selected to identify the locations where the roadway network needs stringent analysis. Next, a pilot study was designed to evaluate the proposed methodology. It was found that the new segmentation methodology can successfully identify areas of congestion and queue growth/dissipation. Finally, the proposed segmentation methodology was implemented for more than 6000 km of Ontario’s roadway network. The results of this study can assist researchers and road agencies with defining a systematic roadway segmentation that can be utilized for different types of projects, ranging from traffic operation to planning studies.

scholarly journals Uncovering High-Level Corruption: Cross-National Objective Corruption Risk Indicators Using Public Procurement Data

2017 ◽  
Vol 50 (1) ◽  
pp. 155-164 ◽  
Author(s):  
Mihály Fazekas ◽  
Gábor Kocsis
Keyword(s):  
Public Procurement ◽  
Risk Indicators ◽  
Red Flags ◽  
Common Definition ◽  
Country Level ◽  
Micro Level ◽  
Government Data ◽  
Definition Of ◽  
High Level ◽  
Cross National

Measuring high-level corruption is subject to extensive scholarly and policy interest, which has achieved moderate progress in the last decade. This article develops two objective proxy measures of high-level corruption in public procurement: single bidding in competitive markets and a composite score of tendering ‘red flags’. Using official government data on 2.8 million contracts in twenty-eight European countries in 2009–14, we directly operationalize a common definition of corruption: unjustified restriction of access to public contracts to favour a selected bidder. Corruption indicators are calculated at the contract level, but produce aggregate indices consistent with well-established country-level indicators, and are also validated by micro-level tests. Data are published at http://digiwhist.eu/resources/data/.

SIMILARITIES AND DIFFERENT FEATURES OF HAND GESTURES IN AMERICAN AND KYRGYZ CULTURES

2019 ◽  
pp. 19-22
Author(s):  
Avtandil kyzy Ya
Keyword(s):  
Everyday Life ◽  
Facial Expressions ◽  
Main Part ◽  
Body Language ◽  
Hand Gestures ◽  
Common Definition ◽  
The World ◽  
The Common ◽  
Definition Of ◽  
Different Cultures

Abstract: This paper highlights similarities and different features of the category of kinesics “hand gestures”, its frequency usage and acceptance by different individuals in two different cultures. This study shows its similarities, differences and importance of the gestures, for people in both cultures. Consequently, kinesics study was mentioned as a main part of body language. As indicated in the article, the study kinesics was not presented in the Kyrgyz culture well enough, though Kyrgyz people use hand gestures a lot in their everyday life. The research paper begins with the common definition of hand gestures as a part of body language, several handshake categories like: the finger squeeze, the limp fish, the two-handed handshake were explained by several statements in the English and Kyrgyz languages. Furthermore, this article includes definitions and some idioms containing hand, shake, squeeze according to the Oxford and Academic Dictionary to show readers the figurative meanings of these common words. The current study was based on the books of writers Allan and Barbara Pease “The definite book of body language” 2004, Romana Lefevre “Rude hand gestures of the world”2011 etc. Key words: kinesics, body language, gestures, acoustics, applause, paralanguage, non-verbal communication, finger squeeze, perceptions, facial expressions. Аннотация. Бул макалада вербалдык эмес сүйлѳшүүнүн бѳлүгү болуп эсептелген “колдордун жандоо кыймылы”, алардын эки башка маданиятта колдонулушу, айырмачылыгы жана окшош жактары каралган. Макаланын максаты болуп “колдордун жандоо кыймылынын” мааниси, айырмасы жана эки маданиятта колдонулушу эсептелет. Ошону менен бирге, вербалдык эмес сүйлѳшүүнүн бѳлүгү болуп эсептелген “кинесика” илими каралган. Берилген макалада кѳрсѳтүлгѳндѳй, “кинесика” илими кыргыз маданиятында толугу менен изилденген эмес, ошого карабастан “кинесика” илиминин бѳлүгү болуп эсептелген “колдордун жандоо кыймылы” кыргыз элинин маданиятында кѳп колдонулат. Андан тышкары, “колдордун жандоо кыймылынын” бир нече түрү, англис жана кыргыз тилдеринде ма- селен аркылуу берилген.Тѳмѳнкү изилдѳѳ ишин жазууда чет элдик жазуучулардын эмгектери колдонулду. Түйүндүү сѳздѳр: кинесика, жандоо кыймылы, акустика,кол чабуулар, паралингвистика, вербалдык эмес баарлашуу,кол кысуу,кабыл алуу сезими. Аннотация. В данной статье рассматриваются сходства и различия “жестикуляции” и частота ее использования, в американской и кыргызской культурах. Следовательно, здесь было упомянуто понятие “кинесика” как основная часть языка тела. Как указано в статье, “кинесика” не была представлена в кыргызской культуре достаточно хорошо, хотя кыргызский народ часто использует жестикуляцию в повседневной жизни. Исследовательская работа начинается с общего определения “жестикуляции” как части языка тела и несколько категорий жестикуляции, таких как: сжатие пальца, слабое рукопожатие, рукопожатие двумя руками, были объяснены несколькими примерами на английском и кыргызском языках. Кроме того, эта статья включает определения слов “рука”, “рукопожатие”, “сжатие” и некоторые идиомы, содержащие данных слов согласно Оксфордскому и Академическому словарю, чтобы показать читателям их образное значение. Данное исследование было основано на книгах писателей Аллана и Барбары Пиз «Определенная книга языка тела» 2004 года, Романа Лефевра «Грубые жестикуляции мира» 2011 года и т.д. Ключевые слова: кинесика, язык жестов, жесты, акустика, аплодисменты, паралингвистика, невербальная коммуникация, сжатие пальца, чувство восприятия, выражение лиц.

scholarly journals Language Family Engineering with Product Lines of Multi-level Models

2021 ◽  
Author(s):  
Juan de Lara ◽  
Esther Guerra
Keyword(s):  
Software Engineering ◽  
Arbitrary Number ◽  
Formal Theory ◽  
The Other ◽  
Language Family ◽  
Top Down ◽  
Product Lines ◽  
Modelling Languages ◽  
Multi Level ◽  
Definition Of

AbstractModelling is an essential activity in software engineering. It typically involves two meta-levels: one includes meta-models that describe modelling languages, and the other contains models built by instantiating those meta-models. Multi-level modelling generalizes this approach by allowing models to span an arbitrary number of meta-levels. A scenario that profits from multi-level modelling is the definition of language families that can be specialized (e.g., for different domains) by successive refinements at subsequent meta-levels, hence promoting language reuse. This enables an open set of variability options given by all possible specializations of the language family. However, multi-level modelling lacks the ability to express closed variability regarding the availability of language primitives or the possibility to opt between alternative primitive realizations. This limits the reuse opportunities of a language family. To improve this situation, we propose a novel combination of product lines with multi-level modelling to cover both open and closed variability. Our proposal is backed by a formal theory that guarantees correctness, enables top-down and bottom-up language variability design, and is implemented atop the MetaDepth multi-level modelling tool.

A case for multiple views of function in design based on a common definition

2013 ◽  
Vol 27 (3) ◽  
pp. 271-279 ◽  
Author(s):  
Amaresh Chakrabarti ◽  
V. Srinivasan ◽  
B.S.C. Ranjan ◽  
Udo Lindemann
Keyword(s):  
State Change ◽  
Multiple Views ◽  
System Environment ◽  
Common Definition ◽  
Effect Model ◽  
Before And After ◽  
Definition Of

AbstractFunctions are important in designing. However, several issues hinder progress with the understanding and usage of functions: lack of a clear and overarching definition of function, lack of overall justifications for the inevitability of the multiple views of function, and scarcity of systematic attempts to relate these views with one another. To help resolve these, the objectives of this research are to propose a common definition of function that underlies the multiple views in literature and to identify and validate the views of function that are logically justified to be present in designing. Function is defined as a change intended by designers between two scenarios: before and after the introduction of the design. A framework is proposed that comprises the above definition of function and an empirically validated model of designing, extended generate, evaluate, modify, and select of state-change, and an action, part, phenomenon, input, organ, and effect model of causality (Known as GEMS of SAPPhIRE), comprising the views of activity, outcome, requirement–solution–information, and system–environment. The framework is used to identify the logically possible views of function in the context of designing and is validated by comparing these with the views of function in the literature. Describing the different views of function using the proposed framework should enable comparisons and determine relationships among the various views, leading to better understanding and usage of functions in designing.

International Law and Administrative Insulation: A Comparison of Refugee Status Determination Regimes in the United States, Canada, and Australia

2012 ◽  
Vol 37 (04) ◽  
pp. 933-968 ◽  
Author(s):  
Rebecca Hamlin
Keyword(s):  
United States ◽  
International Law ◽  
Control Policy ◽  
The United States ◽  
Border Control ◽  
Refugee Status ◽  
Common Definition ◽  
Political Debates ◽  
Political Interference ◽  
Definition Of

International law provides nations with a common definition of a refugee, yet the processes by which countries determine who should be granted refugee status look strikingly different, even across nations with many institutional, cultural, geographical, and political similarities. This article compares the refugee status determination regimes of three popular asylum seeker destinations—the United States, Canada, and Australia. Despite these nations' similar border control policies, asylum seekers crossing their borders access three very different systems. These differences have less to do with political debates over admission and border control policy than with the level of insulation the administrative decision-making agency enjoys from political interference and judicial review. Bureaucratic justice is conceptualized and organized differently in different states, and so states vary in how they draw the line between refugee and nonrefugee.

scholarly journals When does proton pump inhibitor treatment become long term? A scoping review

2021 ◽  
Vol 8 (1) ◽  
pp. e000563
Author(s):  
Peter Fentz Haastrup ◽  
Dorte Ejg Jarbøl ◽  
Wade Thompson ◽  
Jane Møller Hansen ◽  
Jens Søndergaard ◽  
...  
Keyword(s):  
Proton Pump Inhibitor ◽  
Proton Pump ◽  
Cochrane Library ◽  
Clinical Context ◽  
Eligibility Criteria ◽  
Proton Pump Inhibitor Treatment ◽  
Common Definition ◽  
Definition Of ◽  
Inhibitor Treatment

ObjectiveProton pump inhibitor (PPI) use has risen substantially, primarily driven by ongoing use over months to years. However, there is no consensus on how to define long-term PPI use. Our objectives were to review and compare definitions of long-term PPI use in existing literature and describe the rationale for each definition. Moreover, we aimed to suggest generally applicable definitions for research and clinical use.DesignThe databases PubMed and Cochrane Library were searched for publications concerning long-term use of PPIs and ClinicalTrials.gov was searched for registered studies. Two reviewers independently screened the titles, abstracts, and full texts in two series and subsequently extracted data.ResultsA total of 742 studies were identified, and 59 met the eligibility criteria. In addition, two ongoing studies were identified. The definition of long-term PPI use varied from >2 weeks to >7 years. The most common definition was ≥1 year or ≥6 months. A total of 12/61 (20%) of the studies rationalised their definition.ConclusionThe definitions of long-term PPI treatment varied substantially between studies and were seldom rationalised.In a clinical context, use of PPI for more than 8 weeks could be a reasonable definition of long-term use in patients with reflux symptoms and more than 4 weeks in patients with dyspepsia or peptic ulcer. For research purposes, 6 months could be a possible definition in pharmacoepidemiological studies, whereas studies of adverse effects may require a tailored definition depending on the necessary exposure time. We recommend to always rationalise the choice of definition.

scholarly journals Are Best Practices Really Best? A Review of the Best Practices Literature in Library and Information Studies

2013 ◽  
Vol 8 (4) ◽  
pp. 110 ◽  
Author(s):  
Jackie Druery ◽  
Nancy McCormack ◽  
Sharon Murphy
Keyword(s):  
Best Practices ◽  
Best Practice ◽  
Information Science ◽  
Library And Information Science ◽  
Science Literature ◽  
Common Definition ◽  
Library And Information Studies ◽  
Information Studies ◽  
The Subject ◽  
Definition Of

Objective - The term “best practice” appears often in library and information science literature, yet, despite the frequency with which the term is used, there is little discussion about what is meant by the term and how one can reliably identify a best practice. Methods – This paper reviews 113 articles that identify and discuss best practices, in order to determine how “best practices” are distinguished from other practices, and whether these determinations are made on the basis of consistent and reliable evidence. The review also takes into account definitions of the term to discover if a common definition is used amongst authors. Results – The “evidence” upon which papers on “best practices” are based falls into one of the following six categories: 1) opinion (n=18, 15%), 2) literature reviews (n=13, 12%), 3) practices in the library in which the author works (n=19, 17%), 4) formal and informal qualitative and quantitative approaches (n=16, 14%), 5) a combination of the aforementioned (i.e., combined approaches) (n=34, 30%), and 6) “other” sources or approaches which are largely one of a kind (n=13, 12%). There is no widely shared or common definition of “best practices” amongst the authors of these papers, and most papers (n=94, 83%) fail to define the term at all. The number of papers was, for the most part, split evenly amongst the six categories indicating that writers on the subject are basing “best practices” assertions on a wide variety of sources and evidence. Conclusions – Library and information science literature on “best practices” is rarely based on rigorous empirical methods of research and therefore is generally unreliable. There is, in addition, no widely held understanding of what is meant by the use of the term.

scholarly journals A Tabu List-Based Algorithm for Capacitated Multilevel Lot-Sizing with Alternate Bills of Materials and Co-Production Environments

2019 ◽  
Vol 9 (7) ◽  
pp. 1464 ◽  
Author(s):  
Alfonso Romero-Conrado ◽  
Jairo Coronado-Hernandez ◽  
Gregorio Rius-Sorolla ◽  
José García-Sabater
Keyword(s):  
Lot Sizing ◽  
Medium Size ◽  
Exact Methods ◽  
Operations Planning ◽  
Material Requirements Planning ◽  
Tabu List ◽  
Production Environments ◽  
Lot Sizes ◽  
Multi Level ◽  
Definition Of

The definition of lot sizes represents one of the most important decisions in production planning. Lot-sizing turns into an increasingly complex set of decisions that requires efficient solution approaches, in response to the time-consuming exact methods (LP, MIP). This paper aims to propose a Tabu list-based algorithm (TLBA) as an alternative to the Generic Materials and Operations Planning (GMOP) model. The algorithm considers a multi-level, multi-item planning structure. It is initialized using a lot-for-lot (LxL) method and candidate solutions are evaluated through an iterative Material Requirements Planning (MRP) procedure. Three different sizes of test instances are defined and better results are obtained in the large and medium-size problems, with minimum average gaps close to 10.5%.

scholarly journals Situační analýza a role diskurzů v sociálněvědním výzkumu

2021 ◽  
Vol 18 (1) ◽  
pp. 35-52
Author(s):  
Markéta Košatková
Keyword(s):  
Social Reality ◽  
Situational Analysis ◽  
Situation Analysis ◽  
Meso Level ◽  
Social Organizations ◽  
Collective Actors ◽  
Micro Level ◽  
Definition Of ◽  
Insight Into

The article introduces situation analysis (cf. Clarke 2005) as an epistemologicalontological basis for science freed of the positivistic paradigm. Situation analysis in a broader perspective dives into present discourses as well as discourses that have been concealed. At the meso-level, the analysis offers insight into social and discursive arenas formed by collective actors, key material elements, social organizations and institutions. At the micro-level it is aimed at the position of individual actors in a situation. Situational analysis provides multidimensional research resonating marginalized discourses and supports the everydayness of knowledge in a socially engaged, emic research of social reality. The focus on language constructions in the humanities allows for the re-definition of one’s own entities, formulas, and rules. Their (im)possible transgression is a necessary response to the accelerated and diverse shape of the recent globalized and particularized society.

scholarly journals Evaluation of International Competitiveness

Ekonomika ◽  
2004 ◽  
Vol 68 ◽  
Author(s):  
Gediminas Ramanauskas
Keyword(s):  
International Competitiveness ◽  
International Level ◽  
Successful Performance ◽  
Common Definition ◽  
Country Level ◽  
Level 3 ◽  
Cross Country ◽  
Definition Of ◽  
Or Organization ◽  
A Company

Competitiveness can be defined in a number of ways. We can think of it as of a successful performance of a company or organization; or we may talk about competitiveness in a macro context such as a favourable exchange rate of a national currency. Can we also talk about competitiveness of a nation? What is it and how can it be evaluated?There does not seem to be a common definition of what the international competitiveness of nations is. Some feel that the very notion of international competitiveness of nations is unfair and unacceptable. They argue that the nations themselves do not compete, their enterprises do. For others the notion of international competitiveness of nations is fair. They believe that creating appropriate measures of international competitiveness is central for tracking and understanding the sources of competitiveness of countries.In this paper I classify and compare the measures developed by various authors. I suggest that the studies on the measurement of competitiveness can be classified into five groups:1. Particular sector studies.2. Competitiveness studies at the regional / country level.3. Particular competitiveness indicator studies.4. Competitiveness studies at an international level.5. Cross-country economic policy studies.Since the competitiveness studies serve a different audience and purpose, we cannot discuss which is best without first asking: best at what?

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