Acoustic Backscatter and Attenuation due to River Fine Sediments: Experimental Evaluation of Models and Inversion Methods

2021 ◽  
Author(s):  
Adrien Vergne ◽  
Céline Berni ◽  
Jérôme Le Coz ◽  
Florent Tencé
Keyword(s):  
Experimental Evaluation ◽  
Acoustic Backscatter ◽  
Fine Sediments ◽  
Inversion Methods ◽  
And Inversion

Action research on division of fractions

1966 ◽  
Vol 13 (4) ◽  
pp. 293-295
Author(s):  
Patricia M. Bergen
Keyword(s):  
Action Research ◽  
Sixth Grade ◽  
Common Denominator ◽  
Inversion Methods ◽  
Division Of Fractions ◽  
The Common ◽  
And Inversion ◽  
Reciprocal Method

Division of fractions has caused confusion for pupils and irresolution in teachers for many years. Its rationalization in terms sixth-grade pupils will understand is difficult. Even the authorities on the teaching of arithmetic disagree on the best method of coping with this problem. Recommendations encompass the common denominator and inversion methods and, of late, the complex fraction (reciprocal) method.

scholarly journals 2.5D vs 1D AEM Forward and Inversion Methods at a Survey Scale : A Case Study

2018 ◽  
Vol 2018 (1) ◽  
pp. 1-8
Author(s):  
J. Silic ◽  
R. Paterson ◽  
D. FitzGerald
Keyword(s):  
Inversion Methods ◽  
And Inversion

Flexible Provenance Tracing

2013 ◽  
pp. 157-175
Author(s):  
Liwei Wang ◽  
Henning Koehler ◽  
Ke Deng ◽  
Xiaofang Zhou ◽  
Shazia Sadiq
Keyword(s):  
Inversion Method ◽  
Data Provenance ◽  
Time Requirement ◽  
Provenance Information ◽  
Inversion Methods ◽  
Provenance Data ◽  
Source Data ◽  
History Of ◽  
And Inversion ◽  
Derivation Process

The description of the origins of a piece of data and the transformations by which it arrived in a database is termed the data provenance. The importance of data provenance has already been widely recognized in database community. The two major approaches to representing provenance information use annotations and inversion. While annotation is metadata pre-computed to include the derivation history of a data product, the inversion method finds the source data based on the situation that some derivation process can be inverted. Annotations are flexible to represent diverse provenance metadata but the complete provenance data may outsize data itself. Inversion method is concise by using a single inverse query or function but the provenance needs to be computed on-the-fly. This paper proposes a new provenance representation which is a hybrid of annotation and inversion methods in order to achieve combined advantage. This representation is adaptive to the storage constraint and the response time requirement of provenance inversion on-the-fly.

Sign in / Sign up

Export Citation Format

Share Document