A mapping study on test case selection based on nature-inspired algorithms
After delivery of software product for modification, in order to correct faults or for improving the performance or other attributes, we calculate software maintenance. For this there is the need for regression testing, regression testing is used to check that no upcoming errors have been found throughout the maintenance phase. The abundant number of test suites consist of some repetitions/redundancies as the same fault/error may be covered by many test cases. Hence, it is recommended/advisable to decrease/reduce the test suite. Test case selection is one of the techniques used for reducing the number of test cases by selecting only those test cases from test suite which can detect all those faults which were detected by the whole test. This paper calculates the execution/performance of two metaheuristic algorithm – Cuckoo search and Bat algorithm for selecting test cases. Performance evaluation deciding factors are no. of faults detected and execution time. Results are achieved by conducting experiments on a large scale.
Published by: Sumedha Raheja, Rajvir Singh
Author: Sumedha Raheja
Paper ID: V4I3-1599
Paper Status: published
Published: June 2, 2018
A novel system for analysis of soil properties
The paper describes a microcontroller based model to test the soil sample for five different parameters viz moisture, temperature, pH, resistivity, and conductivity built using ATMEGA32. The readings sensed are stored in an Excel sheet through a Visual Basic code. The saved readings will be read in MATLAB software and graphical representations will be done in MATLAB. Data is secured at the file level and also while accessing the folder through passwords so that there is no unwanted interference. Conditions are tested by using Fuzzy logic and desired conditions necessary for plant growth will be concluded. Also, the graphs can be viewed on an ANDROID operating mobile phone system wherein users can view the plots by using the application MATLAB mobile. GSM modem SIM900 is used to send the readings via SMS to the concerned person giving scope for communication. Through this project, we can study variations in soil properties, the concept of precision farming and sustainable agriculture, overcome the limitations in conventional techniques, analyze the plant growth conditions and include scope for communication.
Published by: Sneha Nargundkar, Prabhakar Manage
Author: Sneha Nargundkar
Paper ID: V4I3-1710
Paper Status: published
Published: June 1, 2018
Vibrational analysis of cracked cantilever beam
A damage is one of the vital characteristics of the structural analysis because of safety cause as well as the economic prosperity of the industries. Identification of faults in dynamic structures and components are a significant aspect of judgment creating about their overhaul and retirement. The existence of cracks which influence the performance of structures as well as the vibrational parameters like modal natural frequencies, mode shapes, modal damping, and stiffness. In the present work, the effect of crack parameters (relative crack location and crack depth) on the vibrational parameters of a cracked cantilever beam are examined by different techniques using numerical method, finite element analysis (FEA), using ANSYS. Finite Element Method has been accomplished to derive the vibration signatures of the cracked cantilever beam. The results obtained analytically are validated with the results obtained from the FEA. The simulations of FEA have done with the help of ANSYS software. Similarly, the Modal analysis is carried out using ANSYS software. Harmonic analysis is done to observe the resonating and anti-resonating peaks for the Un-cracked and cracked cases considered. The stresses induced due to crack are obtained from the static structure analysis done with the help of ANSYS software. The natural frequencies values obtained from all these approaches are observed and the final conclusions are drawn. With the increase in crack depth, there is an increase in natural frequency. When the distance of crack from fixed end is increased there is an increase in natural frequency.
Published by: Sarat Chandra Menda, Pushpa Ratnam Raju Jalli
Author: Sarat Chandra Menda
Paper ID: V4I3-1686
Paper Status: published
Published: June 1, 2018
Hybrid technique for better noise removal to enhance edge detection
Edge detection technique is used to detect the edge of the image. But before edge detection the image must be free from noise. The solution for removal of image and image recovery is image de-noising models which give better solution to remove the possible pixel noise from the target image matrix. The image data is taken in the form of matrix data (2-D, 3-D or N-D), which is processed in the different dimensions with various practices in order to remove (eventually fix) the noise pixels. In this paper, the weight of the pixel is taken and covariance is calculated in the 3x3 pixel blocks. This algorithm does the cross-validation and checks the best fitness value of the pixel. Then the image is enhanced by using enhancement technique. Then the edges of the image are taken by using edge detection technique. The performance of proposed model has been estimated under various experiments. The results are found improved for all of the dataset images on the basis of PSNR (peak signal to noise ratio) and SSIM (structural similarity) based parameters.
Published by: Gurinder Singh, Pankaj Sharma, Puneet Jain
Author: Gurinder Singh
Paper ID: V4I3-1673
Paper Status: published
Published: June 1, 2018
Review on image watermarking based on LBP transform technique
In this review paper, we describe a digital image watermarking technique applying local binary patterns (LBP). Local binary patterns are best known for their rugged texture defining capabilities and digital watermarking applied in proving the copyright of a multimedia content. In this work, we study an LBP synthesis or inverse LBP identical process and its suitability to the digital image watermarking. The LBP synthesis process varies the near pixels values so that the LBP measured from these pixels is the desired value that we want to synthesize. This procedure takes into account the requisition of a digital image watermarking such as robustness and imperceptibility to watermark removal attacks. Due to the character of LBP synthesis, it is necessary that only a few pixels of a provided block is changed to embed the watermark. The simulation output shows that the technique is rugged to the rotation, JPEG compression, and scaling attacks. This LBP synthesis procedure could also be utilized to watermark sensor data for justifying the ownership. We are positive that this work would progress to a new research direction invalidation of digital content. In this work, a binary watermark is embedded into the image blocks by changing the neighborhood pixels conferred to the LBP pattern. However, various image blocks can have the similar LBP pattern, which can lead to false detection in watermark extraction procedure. In different words, one can change the host image deliberately without affecting its watermark message. In addition, there is no encryption procedure before watermark embedding, which leads to another potential security issue. To explain its weakness, two special copy-paste attacks are suggested in this paper, and several experiments are organized to prove the effectiveness of these attacks. To solve these issues, an enhanced semi-fragile watermarking based on LBP operators is conferred.
Published by: Riddhima Prakash, Faseeh Ahmad
Author: Riddhima Prakash
Paper ID: V4I3-1712
Paper Status: published
Published: June 1, 2018
Analysis of characteristics behaviour of locally existing material in pavement sub base
Base materials that meet specifications are getting more difficult to get in many regions of the United States. As a result, higher quality materials have to be hauled long distances. This act would significantly increase the costs associated with roadway construction and subsequent maintenance and rehabilitation. Low quality or out-of-specification materials are usually available from local sources. If through appropriate treatment of the materials or/and structural design, the optimum use of local materials can be permitted, the construction can be accelerated and significant monetary benefits can be realized Most of the pavement design guidelines are based on the assumption that aggregates are important ingredients of the pavement structure. However, availability of good quality aggregates may be a constraint in some locations. To transport good quality aggregates from the long distance may not be economically feasible. Due to the excessive investment and maintenance cost, new methods of design had to be sought and new building materials are introduced. Some researchers tried with soil, which is available everywhere. The engineering properties of soil were modified using certain treatment. At the same time, various waste products are created by several industrial plants. These waste products could be used in the road construction projects after following certain treatment procedure. By treating natural soil or fly-ash, or by addition of certain materials to it, new road construction Each highway was divided into three sections with different materials in the subbase and base layers, such as fine lateritic soil, fine lateritic soil stabilized with lime, and a mixture of fine lateritic soil and crushed rock. The compaction characteristics were evaluated in laboratory tests. From the time the segments were constructed (in 1998 and 2000) until 2001, the stress-strain behavior of the paving structures was evaluated by in situ tests, such as the plate-bearing, Benkelman beam, and falling weight deflect to meter tests. From the results, conclusions were drawn about which of the chosen materials showed the best performance in mechanical behavior.
Published by: Hardeep, Nitin Thakur
Author: Hardeep
Paper ID: V4I3-1708
Paper Status: published
Published: May 31, 2018
