Hi, how i compute the image retrieval efficiency?

Khadidja Belattar @Khadidja_Belattar3

06 June 2015 1 648 Report

I would like to compute the Content Based Image Retrieval but i don't know how i do that.

Thank you.

Best Regards

Khadidja BELATTAR

Xiaomeng Wu

Efficiency usually means speed, memory use and storage requirement. For storage requirement, you can simply check your hard disk and see how large space is required for storing your data, e.g. features. But you have to write codes to accurately measure speed and memory use.

If you are talking about retrieval accuracy, which is usually known as effectiveness, you need to google by "precision", "recall", "f1-score", "average precision" and "mean average precision". You will find wikipedias and tutorials on how to compute these statistics.

Badges
Science topic

More Khadidja Belattar's questions See All

Dear Researchers, What is the best histogram?

I computed the distribution of data according to attribute 1 and attribute 2; so , i would like to compare between these distributions, i plot the histogram and boxplots. What information can i...

31 December 2016 6,243 0 View

Dear researcher, what is difference between grid and cloud computing?

I am trying to understand some concepts related to distributed systems , grid and cloud computing. So I need some good papers to know about these concepts. Can anyone provide some good references...

09 October 2016 8,732 4 View

Dear Researcher, I would like to understand why the red pixels appear when i transform the original one into HSL color space?

08 September 2016 6,787 0 View

Dear Researches, i have three images that applied three techniques for contrast enhacement, i would like to know what is the best one?

08 September 2016 7,676 15 View

Dear Researcher, is it correct to enhance the contrast from illumination component obtained by Retinex algorithm?

06 July 2016 889 4 View

Dear researcher, i would like to understand the image luminance, contrast , brightness and illumination?

Dear researcher, What is difference between the illumination, luminance, contrast and brightness? Is there any relationship between these concepts? Thank You Best Regards Khadidja BELATTAR

06 July 2016 3,842 0 View

I would like to test the contrast enhancement on test images but the probleme i have not images of poor contrast, so what can i do?

05 June 2016 6,324 10 View

Hello, any one help me please to choose the suitable journal to submit my work?

31 December 2015 9,849 3 View

Hi, could anyone please provide me some CBIR matlab code source?

I need some code sources for CBIR, please could provide me that please? Thank you a lot. Best Regards Khadidja BELATTAR

06 July 2015 2,324 2 View

Hi, could any one help me to use vl_sift,please?

06 July 2015 431 1 View

error in running a model in Abaqus

Excessive rotation of nodes in node set ErrNodeExcessRotation-Step1

17 August 2021 0 0 View

error in modelling model in Abaqus

Excessive rotation of nodes in node set ErrNodeExcessRotation-Step1

17 August 2021 0 0 View

MGL tools

20 June 2021 0 0 View

i have some problem with chtMultiRegionSimpleFoam

--> FOAM FATAL ERROR: Maximum number of iterations exceeded From function Foam::scalar Foam::species::thermo::T(Foam::scalar, Foam::scalar, Foam::scalar, Foam::scalar (Foam::species::thermo::*)(Foam::scalar, Foam::scalar) const, Foam::scalar (Foam::species::thermo::*)(Foam::scalar, Foam::scalar) const, Foam::scalar (Foam::species::thermo::*)(Foam::scalar) const) const [with Thermo = Foam::hConstThermo >; Type = Foam::sensibleEnthalpy; Foam::scalar = double; Foam::species::thermo = Foam::species::thermo >, Foam::sensibleEnthalpy>] in file /home/ubuntu/OpenFOAM/OpenFOAM-4.1/src/thermophysicalModels/specie/lnInclude/thermoI.H at line 66. FOAM aborting #0 Foam::error::printStack(Foam::Ostream&) at ??:? #1 Foam::error::abort() at ??:? #2 Foam::heRhoThermo >, Foam::sensibleEnthalpy> > > >::calculate() at ??:? #3 Foam::heRhoThermo >, Foam::sensibleEnthalpy> > > >::correct() at ??:? #4 ? at ??:? #5 __libc_start_main in "/lib/x86_64-linux-gnu/libc.so.6" #6 ? at ??:?

24 March 2021 0 0 View

Resistor definition in Piezoelectric bimorph with ANSYS workbench

Hello, good day! I am trying to simulate similar bimorph piezoelectric harvester with below commands. However, the output power doesn't change with resistor value. Please help to find the reason. ET,10,CIRCU94,0 !SET UP RESISTOR R,1,100000 !RESISTANCE VALUE TYPE,10 !SET ELEMENT TYPE E,1,2 !CREATE RESISTOR BETWEEN NODES 1 AND 2 Thanks in advance Regards,

02 March 2021 0 0 View

Is There Any Feasible Method To Test Fluorescent Compounds Other Than Fluorescence Spectrometers ??

Is There Any Feasible Method To Test The Efficiency Of Fluorescent Compounds Other Than UV Spectrometers ? Suggestions Would Be Appreciated !

02 March 2021 5,785 3 View

The procedure compute?

02 March 2021 5,204 3 View

Image Processing and classification using keras/Tensorflow?

Do you have some recommendations approaches on Image processing and classification of plant diseases using TensorFlow/Keras?

02 March 2021 1,493 4 View

Is there a powerful system for the security of the systems distributed on IoT systems?

02 March 2021 3,858 10 View

Which SAR dataset to use for generating coherency matrix and performing target decomposition (Description) ?

Working on chandrayaan-2 DFSAR data, there are three datasets available: 1) Slant range image data product: The slant range complex image file. Each pixel is represented by two 4-byte floating...

02 March 2021 8,481 3 View