Question & Answer

Thesis coding and implementation is one such part of thesis journey that most of the PhD students find challenging. This particular section is dedicated to answer all queries that PhD students encounter while working for computer science, electronics of IT thesis projects.

Ques : How is ATLAS.ti different from NVivo?

Answer : ATLAS.ti allows easy data interpretation. NVivo performs better analysis of data, interviews and observations. The performance of NVivo depends on th...

Ques : When should you consider using focus group to collect the required data?

Answer : 1. Detailed information about the attributes if required 2. Study requires additional data 3. When the approach is to be used with focus group

Ques : What are the characteristics of the secondary data?

Answer : 1. Suitability of data - The data suited for one study need not necessarily be suited to another study. Scrutinise the terms, units of collection, etc....

Ques : What is the difference between local and global color descriptors?

Answer : Where a local descriptor would give the information about local activity and spatial distribution of the color content in the image, the global descrip...

Ques : What is a color correlogram?

Answer : It is a table which is indexed by the color pairs and the nth entry makes the probability of pixel detection specific.

Ques : What is Advanced Communications Function or Network Control Program?

Answer : AFC or NCP is one of the primary SNA network control programs which interfaces with the SNA access method in the host processor to take control network...

Ques : What is AARON? How does it work?

Answer : AARON is a computer program that was initially built on C++programming language by Harold Cohen. However, in the late 1990s it was switched to LISP pro...

Ques : How to extract measurement data from WSN?

Answer : You can use NI-WSN software making LabVIEW integration available for extracting the measurement data. When you add NI WSN gateway to LabVIEW project, y...

Ques : What is bilinear interpolation?

Answer : It is a kind of interpolation where the intensity of the four neighboring pixels can be used to spot the intensity a new location.

Ques : What is the difference between Simulink and MATLAB?

Answer : MATLAB provides you the environment for technical computing develop algorithms, graphics, explore, analyze and visual data. Simulink provides you the e...

Ques : Where can continuous wavelet transform be used?

Answer : It can be employed for detecting the singularities in 2-D signals by tracking modulus maxima. It can particular be applied to microcalcification detect...

Ques : What is a Pearson's Correlational Coefficient?

Answer : Pearson correlation coefficient or bivariate correlation is a measure of the linear correlation between the two variables X and Y. Its value lies betwe...

Ques : How can cascaded multilevel inverter be connected?

Answer : Because a multilevel inverter synthesizes desired ac voltage from various dc voltages, cascaded multilevel inverters can be connected in parallel or se...

Ques : Can silvaco AC simulation time be minimized?

Answer : Using coarse mesh instead of fine mesh is capable of reducing the simulation time. Newton numerical method can also be used.

Ques : What inverter topologies can be used for induction motor drives?

Answer : Pulse with Modulation (PWM) inverter or a three phase Pulse with Modulation inverter having a DC-DC boost converter is widely used in induction motor d...

Ques : Is there any alternative to avoid the complicated control circuit resulted by CCM shaping technique?

Answer : You can opt for DCM Input technique as it is suitable for medium as well as low power application. It is simplified because the input current is proces...

Ques : What are the types of multilevel converter topologies?

Answer : The basic multilevel converter topologies are Diode-Clamped, Flying Capacitor, Cascaded H-Bridge Cell, Hybrid H-Bridge Multilevel inverter. Here is the...

Ques : What are the techniques for controlling analogue circuits?

Answer : You can use Pulse Width Modulation techniques such as natural balancing and phase deposition and capacitor voltage regulation such as staircase modulat...

Ques : What are Eigenvalue and Eigenvector?

Answer : Eigenvectors are for understanding linear transformations. In data analysis, we usually calculate the eigenvectors for a correlation or covariance matr...

Ques : What is a network topology?

Answer : It is the arrangement of different networking elements in a computer network. The elements such as network links, nodes, switches, wifi access points, ...

Ques : What can I do to answer my research question better?

Answer : It is recommended that you split your research questions into little “why”, “how” chunks to investigate them individually which will make it ea...

Ques : What is matching pursuit?

Answer : These are the general procedures for computing adaptive signal presentations. Matching pursuits decompose signals into waveforms of linear expansions w...

Ques : What is wavelet local maxima?

Answer : In images, the sharp variations of image intensity or the position of edges indicated by Wavelet Local Maxima.

Ques : How many layer technologies does 802.11 wireless networking use?

Answer : IEEE 802.11 has been using four physical layer of technologies for implementing wireless local area network:

Frequency Hopping Spread Spectr...

Ques : How will I get to know how many pixels are used to display the image?

Answer : For this, you have to calculate the density of pixels over the image. This density is called spatial resolution. If an image has a higher value of spat...

Ques : What are the properties of chain code?

Answer : 1. Each code follows the angular direction, in multiples of 45°, which means you must move to go from one contour pixel to the next.
2. If there ...

Ques : What is mean squared error (MSE)?

Answer : Mean squared error of an estimator, and a parameter is the expected value of the square of the difference between the estimator and the parameter. Supp...

Ques : How can I speed up Access 2007 database?

Answer : Close forms containing unbound OLE Objects if not in use. When unbound OLE objects activated, the memory used in that operation is not released until t...

Ques : How can I specify string literal?

Answer : Enclose it with single quote (‘), to specify a single quote, escape it with a backlash and then double it to specify a literal backlash.

Ques : Does heredoc syntax acts as a double quoted string literal?

Answer : Yes but without double quotes which suggests that double quotes do not need to be escaped when escaped codes can be used. Hence, text editor will use a...

Ques : Why am I continuously receiving syntax error on line with a print?

Answer : Syntax error occurs when you try to run code written for older versions of Python in Python 3+compiler. Python has made minor changes so make sure you ...

Ques : Any easier way to install Mercurial in my system?

Answer : You can find prebuilt binary package of Mercurial here https://www.mercurial-scm.org. For Linux, your package manager should include the permission t...

Ques : How to gather database for image processing projects?

Answer : The datasets are fetched as per the application being developed in a specific project. If the project is related to medical image processing, we can ge...

Ques : Is there a standard template for all IEEE journal papers or every journal has their own format?

Answer : Most of the IEEE journals have its own format conditional to the field of study. You can find templates of every journal through following link https:/...

Ques : How to check that the enhancement I am doing on the base paper is unique and no-one else has done that?

Answer : There is no systematic way to get sure that your enhancement is unique many researchers must have struck with the same ideas and thoughts. However, you...

Ques : Can GeoSim Interface Library be used from C++?

Answer : GIL is an Interface library used for Application Programming like Automation works related works so as C++ is an OOP language we can be used for the C+...

Ques : What Data Structures are there in Omnet++?

Answer :

OMNINET++ stands for Objective Modular Network Testbed in C++ .

The Common network data structures will be used like heap, linked list, array, ...

Ques : Why do we use GOD - General Operations Director while working on NS2?

Answer : GOD (General Opeerations Director) used to store global information about the state of the environment, network or nodes that an observer(User) would h...

Ques : I am working on Image processing and have got my images registered, but when I run the code, image is not displayed properly, what can be the reason?

Answer :

On considering with Image processing,irrespective of interfaces like MATLAB,JAVA or Python The following things are to be noted when the display of ...

Ques : What platforms does Yslow work on?

Answer : Yslow is a debugging tool used for performance tuning of a website. Yslow runs on Firefox, Safari, Chrome, Opera, Sourcecode and Phantom JS

Ques : What is Inkscape?

Answer : Inkscape in simple language is a vector image (charts, paintings etc) editor tool that makes use of W3C and SVG as its formats.

Ques : Which is a better programming language, Ruby or Python?

Answer : Python is a hybrid language, while ruby is a purely object oriented language.
Python is quite easy to learn, but ruby has more out of the box ide...

Ques : How can one insert comments in Objective –C?

Answer : Comments can be inserted in the same way, as they are in C. They start with // and run till the end of the line.
// this is an Objective-C comment...

Ques : What is Hi View3?

Answer : Hiview3 is a PC-based decision modelling tool that supports the evaluation of options. It is effective for group decision making, such as decision conf...

Ques : I am compiling a Python code but I am repeatedly getting this error: “SystemError:_PyImport_FixupExtension: module yourmodule not loaded” . What does this mean?

Answer : This means that you have created an extension module named “yourmodule”, but your module init function does not initialize with that name. Your fun...

Ques : What is O Matrix?

Answer : O-Matrix is a matrix programming language for mathematical, scientific as well as financial analysis, and has been marketed by Harmonic Software. O-Mat...

Ques : How do I convert an SAS file into a Stata file?

Answer : If you are a SAS user and you need to use Stata for some analysis you can use proc export to convert your data to Stata format. In the process of conve...

Ques : Is there any way to find out how many rows are there in a given matrix?

Answer : Use command, Size (A, 1)

Ques : I want to plot (x1, y1, x2, y2, ‘linewidth’, 8), but the linewidth ends up applying to both lines. Do I need to use two plot functions with a hold on command to have line1 a different width than line2?

Answer : There is no direct solution for this problem, what you can do is:
h=plot(x1,y1,x2,y2,'LineWidth',8);
set(h(1),'linewidth',5);
set(h(2),...

Ques : I’m using Windows operating system and I’m trying to work with Java communication API, but on the Sun’s official page I’m not able to find the link for API for Windows, it’s available only for UNIX and LINUX. Is it available for Windows?

Answer : Yes, The Java communication API from Sun Microsystem does not support Windows. You can use the RXTX communication API.

Ques : Please suggest the best Graph Database to use with PHP and MySQL.

Answer : It depends on candidates what do they mean by the best. Neo4j is a good option to go with but if you want something easier to use then sail builds of M...

Ques : Which programming language should I use to develop VOIP application?

Answer : Well, it totally depends on the architecture. If the front end of your application is a web browser, then you should use DHTML (HTML, Javascript & CSS)...

Ques : Which software can I use to implement LTE?

Answer : You can use:
- NS2
- OPNET
For implementing it in MATLAB without LTE toolbox, you will have to compromise on the presentation of results...

Ques : Which programming language and software can be used to implement routing protocols?

Answer : One can implement a routing protocol in any programming language that has the capability to send and receive packets and that requires an API from the ...

Ques : My dissertation topic is 'Optimization of Routing Protocol For VANET.' Which software should I use for creating the network topology, MATLAB or NS2?

Answer : You should go for MATLAB as NS2 doesn't provide the graphical user interface and you would be putting extra efforts in case of NS2. MATLAB is a good op...

Ques : For the simulation of a wireless sensor network, which tool is better: NS2, Matlab, OMNeT++, GloMoSim?

Answer : If you possess good programming skills then NS2 is the preferred choice of simulation tool used in wireless sensor network. Rest it depends upon your p...

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