scholarly journals Asteroid Family Identification: History and State of the Art

2015 ◽  
Vol 10 (S318) ◽  
pp. 16-27 ◽  
Author(s):  
Zoran Knežević

AbstractThe history of asteroid families, from their discovery back in 1918, until the present time, is briefly reviewed. Two threads have been followed: on the development of the theories of asteroid motion and the computation of proper elements, and on the methods of classification themselves. Three distinct periods can be distinguished: the first one until mid-1930s, devoted to discovery and first attempts towards understanding of the properties of families; the second one, until early 1980s, characterized by a growing understanding of their importance as key evidence of the collisional evolution; the third one, characterized by an explosion of work and results, comprises the contemporary era. An assessment is given of the state-of-the-art and possible directions for the future effort, focusing on the dynamical studies, and on improvements of classification methods to cope with ever increasing data set.

2001 ◽  
Vol 75 (6) ◽  
pp. 1055-1057 ◽  
Author(s):  
Jonathan M. Adrain

With this issue we mark publication of the 75th volume of the Journal of Paleontology, and celebrate the occasion with a series of review articles on the systematics of major groups of fossils. Instructions to authors were very broad: we suggested consideration of the history of study, current problems, and future directions, but otherwise left authors to focus their reviews as they saw fit. We hoped in this way, with a mix of traditions and approaches, to fashion a general overview of the systematics of fossil organisms as practiced today. With the enthusiastic efforts of the contributors, I think we've been successful. The papers in this issue comprise authoritative reviews of the state of the art in various branches of paleontology. But even if one is not concerned with the details of particular groups, the contributions provide a fascinating sense of where the discipline is, and where it might be going. Although concerned mainly with systematic history, they nevertheless provide a flavor of the kinds of concerns we have as a community for the future development of our science.


2018 ◽  
Vol 24 (40) ◽  
pp. 139-158
Author(s):  
Anna Jankowska

Looking into the Past, Looking into the Future – 10 Years of Film Audio Description in Poland This article presents the history of the development of audio description (AD) in Poland and gives an overview of the state of the art ten years after the introduction of this new type of audiovisual translation aimed at visually impaired audiences. The following aspects of AD in Poland are discussed: AD accessibility, standards of its creation, availability of training and legal regulations.


1989 ◽  
Vol 28 (04) ◽  
pp. 270-272 ◽  
Author(s):  
O. Rienhoff

Abstract:The state of the art is summarized showing many efforts but only few results which can serve as demonstration examples for developing countries. Education in health informatics in developing countries is still mainly dealing with the type of health informatics known from the industrialized world. Educational tools or curricula geared to the matter of development are rarely to be found. Some WHO activities suggest that it is time for a collaboration network to derive tools and curricula within the next decade.


Author(s):  
Philipp Zehmisch

This chapter considers the history of Andaman migration from the institutionalization of a penal colony in 1858 to the present. It unpicks the dynamic relationship between the state and the population by investigating genealogies of power and knowledge. Apart from elaborating on subaltern domination, the chapter also reconstructs subaltern agency in historical processes by re-reading scholarly literature, administrative publications, and media reports as well as by interpreting fieldwork data and oral history accounts. The first part of the chapter defines migration and shows how it applies to the Andamans. The second part concentrates on colonial policies of subaltern population transfer to the islands and on the effects of social engineering processes. The third part analyses the institutionalization of the postcolonial regime in the islands and elaborates on the various types of migration since Indian Independence. The final section considers contemporary political negotiations of migration in the islands.


Author(s):  
Sebastian Hoppe Nesgaard Jensen ◽  
Mads Emil Brix Doest ◽  
Henrik Aanæs ◽  
Alessio Del Bue

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.


1990 ◽  
Vol 30 (4) ◽  
pp. 487-492 ◽  
Author(s):  
Carl F. Kaestle

The History of Education Quarterly has done it again. Despite many scholars' previous attempts to summarize the state of the art in historical studies of literacy, this special issue will now be the best, up-to-date place for a novice to start. It should be required reading for everyone interested in this subfield. The editors have enlisted an impressive roster of prominent scholars in the field, and these authors have provided us with an excellent array of synthetic reviews, methodological and theoretical discussions, and exemplary research papers.


Author(s):  
Mauro Vallati ◽  
Lukáš Chrpa ◽  
Thomas L. Mccluskey

AbstractThe International Planning Competition (IPC) is a prominent event of the artificial intelligence planning community that has been organized since 1998; it aims at fostering the development and comparison of planning approaches, assessing the state-of-the-art in planning and identifying new challenging benchmarks. IPC has a strong impact also outside the planning community, by providing a large number of ready-to-use planning engines and testing pioneering applications of planning techniques.This paper focusses on the deterministic part of IPC 2014, and describes format, participants, benchmarks as well as a thorough analysis of the results. Generally, results of the competition indicates some significant progress, but they also highlight issues and challenges that the planning community will have to face in the future.


1994 ◽  
Vol 19 (1) ◽  
pp. 23-27
Author(s):  
Gail M. Hodge

Discusses the state-of-the-art in computer indexing, defines indexing and computer assistance, describes the reasons for renewed interest, identifies the types of computer support in use using selected operational systems, describes the integration of various computer supports in one data base production system, and speculates on the future.


2022 ◽  
pp. 1-25
Author(s):  
Torkil Lauesen

Abstract This article tells the story of an organization based in Copenhagen, Denmark, which supported the Liberation struggle in the Third World from 1969 until April 1989. It focus on the support to the Popular Front for the Liberation of Palestine (pflp). The story is told in a historical and global context. The text explains the strategy and tactic behind the support-work. It explains how the different forms of solidarity work developed over two decades (for a more detailed account of the history of the group, see Kuhn, 2014). Finally, the article offers an evaluation of the past and a perspective on the future struggle for a socialist Palestine.


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