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Search Results: 1 - 10 of 403170 matches for " Rashedur M. Rahman "
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Comparison of Various Classification Techniques Using Different Data Mining Tools for Diabetes Diagnosis  [PDF]
Rashedur M. Rahman, Farhana Afroz
Journal of Software Engineering and Applications (JSEA) , 2013, DOI: 10.4236/jsea.2013.63013

In the absence of medical diagnosis evidences, it is difficult for the experts to opine about the grade of disease with affirmation. Generally many tests are done that involve clustering or classification of large scale data. However many tests could complicate the main diagnosis process and lead to the difficulty in obtaining the end results, particularly in the case where many tests are performed. This kind of difficulty could be resolved with the aid of machine learning techniques. In this research, we present a comparative study of different classification techniques using three data mining tools named WEKA, TANAGRA and MATLAB. The aim of this paper is to analyze the performance of different classification techniques for a set of large data. A fundamental review on the selected techniques is presented for introduction purpose. The diabetes data with a total instance of 768 and 9 attributes (8 for input and 1 for output) will be used to test and justify the differences between the classification methods. Subsequently, the classification technique that has the potential to significantly improve the common or conventional methods will be suggested for use in large scale data, bioinformatics or other general applications.

Decision Tree and Naïve Bayes Algorithm for Classification and Generation of Actionable Knowledge for Direct Marketing  [PDF]
Masud Karim, Rashedur M. Rahman
Journal of Software Engineering and Applications (JSEA) , 2013, DOI: 10.4236/jsea.2013.64025

Many companies like credit card, insurance, bank, retail industry require direct marketing. Data mining can help those institutes to set marketing goal. Data mining techniques have good prospects in their target audiences and improve the likelihood of response. In this work we have investigated two data mining techniques: the Naive Bayes and the C4.5 decision tree algorithms. The goal of this work is to predict whether a client will subscribe a term deposit. We also made comparative study of performance of those two algorithms. Publicly available UCI data is used to train and test the performance of the algorithms. Besides, we extract actionable knowledge from decision tree that focuses to take interesting and important decision in business area.

Competitiveness of Winter Rice Varieties against Weed under Dry Direct Seeded Conditions  [PDF]
A. N. M. Atikur Rahman, A. K. M. Mominul Islam, Md. Altamas Arefin, Md. Rashedur Rahman, Md. Parvez Anwar
Agricultural Sciences (AS) , 2017, DOI: 10.4236/as.2017.812101
Aerobic rice or dry direct seeded rice is highly vulnerable to weeds because of lack of “head start” over weeds and standing water layer to suppress weeds. The risks of chemical control and the huge cost involvement in mechanical control demand an eco-friendly and cost-effective integrated weed management. Weed competitive rice cultivar may be considered as a viable tool for integrated weed management. In these circumstances, an experiment was designed to evaluate weed competitiveness of some selected winter rice varieties under aerobic soil conditions. The study was conducted during dry season (February to June) 2016 at the Agronomy Field Laboratory and Weed Management Laboratory, Bangladesh Agricultural University, Mymensingh. Fourteen rice varieties namely, BRRI dhan28, BRRI dhan29, BRRI dhan47, BRRI dhan50, BRRI dhan55, BRRI dhan58, BRRI dhan59, BRRI dhan67, Binadhan-5, Binadhan-6, Binadhan-8, Binadhan-10, BRRI hybrid dhan3 and Agrodhan-14 were grown under weedy and weed-free conditions. Plots with no rice were also maintained to observe the natural growth of weed in absence of rice. The experiment was conducted with split-plot design with three replications. Weeding regime was allocated in main plot and rice variety was allocated in sub-plot. Results showed that rice varieties varied widely in their yield performances and weed competitiveness. Among rice varieties, BRRI dhan59 allowed the minimum weed growth (19.2 g m-2) while Binadhan-5 allowed the maximum weed growth (62.8 g m-2). Grain yield ranged from 1.85 t ha-1 (BRRI dhan55) to 3.92 t ha-1 (Binadhan-5) under weed-free condition and between 0.41 t ha-1 (BRRI dhan55) and 2.06 t ha-1 (BRRI dhan59) under weedy condition. Weed inflicted relative yield loss ranged from 43.4% to 82.1% among the varieties. BRRI dhan59 allowed the least yield penalty (43.4%) while Binadhan-5 had the maximum yield penalty (82.1%) due to weed competition. Although Binadhan-5 is the most productive variety (3.92 t ha-1) for aerobic culture but its weed inflicted relative yield loss is higher (82.1%) than many other varieties with low yield potential. On the other hand, BRRI dhan59 appeared as the most weed competitive variety (only 43.4% relative yield loss) with productivity of 3.84 t ha-1. Therefore, weed competitive variety should be considered as a vital tool while designing integrated weed management system for aerobic rice.
Decision Tree Based Routine Generation (DRG) Algorithm: A Data Mining Advancement to Generate Academic Routine and Exam-time Tabling for Open Credit System
Ashiqur Md. Rahman,Sheik Shafaat Giasuddin,Rashedur M Rahman
Journal of Computers , 2010, DOI: 10.4304/jcp.5.1.12-22
Abstract: In this paper we propose and analyze techniques for academic routine and exam time table generation for open credit system. The contributions of this paper are multi-folds. Firstly, a technique namely Decision tree based Routine Generation (DRG) algorithm is proposed to generate an academic routine. Secondly, based on the DRG concept, Exam-time Tabling algorithm (ETA) is developed to implement conflict free exam-time schedule. In open credit course registration system any student may choose any course in any semester after completion of pre-requisite course(s). This makes the research more challenging and complex to accomplish. Academic routine and exam timetable generation are in general NP-Hard problems, i.e., no algorithm has been developed to solve it in reasonable (polynomial) amount of time. Different methods based on heuristics are developed to generate good time-table. In this research we developed heuristic based strategies that generate an efficient academic routine and exam time-table for a university that follow open credit system. OLAP representation helps to classify the courses along with the proposed algorithm to eliminate some constraints. Daybased pattern, minimum manhattan distance between courses of same teacher; minimum conflicted course distribution has been stage-managed to classify the courses. Our ETA algorithm is based on decision tree and sequential search techniques.
A Hardware-Software Co-Method for Low Cost Eprom Programmer
S.M. Kamruzzaman,Rashedur Rashid,Mahfuz-Ur-Rahman
International Journal of Soft Computing , 2012,
Abstract: Nowadays Erasable Programmable Read Only Memory (EPROM) is widely used in various instruments and devices for storing experimental or ordinary data, assembly code etc. This memory chip has large application in any industry or institute. EPROM programmer is needed in various sections of microprocessor based control system such as city traffic light control, temperature control, DC motor control, stepper motor control, robot control, various toy etc. The EPROM chip is also needed in computer hardware like motherboard, processor, printer, scanner etc. It is used in all of the above applications to read or write programming code sequence or data or various forms of sound and music. Bearing this in mind, a parallel port EPROM programmer is developed that can be used to write data to and read data from EPROM. A software has been developed to read, write, verify and reset of EPROM s and controlling of the device. The developed hardware-software co-method for EPROM programmer is capable of programming those EPROM chips whose address buses are in the range of nine to sixteen bits and data buses are 8 bits. If the address buses and data buses of EPROM chips are not in the range mentioned above, then it is needed to set extra latches in the circuit and accordingly control words are generated. As the EPROM programmer is software based so it is user friendly and low cost compare to commercial one.
Quality Control of Gamma Camera with SPECT Systems  [PDF]
Md. Razibul Hasan, Md. Harunor Rashid Khan, Md. Rashedur Rahman, Md. Shohel Parvez, Md. Rakibul Islam, Ashoke Kumar Paul
International Journal of Medical Physics,Clinical Engineering and Radiation Oncology (IJMPCERO) , 2017, DOI: 10.4236/ijmpcero.2017.63021
Abstract: Quality control of Gamma Camera with SPECT System is highly valuable for assurance performance characteristic. We report the performance characteristic of gamma camera by intrinsic calibration and verification measurement. The study has been done using the data from Siemens Symbia S Series gamma camera by using a point source 99mTc at the Institute of Nuclear Medicine & Allied Sciences (INMAS), Khulna, Bangladesh. From intrinsic calibration and verification flood series, the integral uniformity for the central field of view (CFOV) has been found in between 4.01% and 2.88% and for the useful field of view (UFOV) has been in between 4.77% and 4.30%. The differential uniformity for the CFOV has been in between 1.53% and 2.04% and for the UFOV has been in between 2.32% and 2.77%. According to Operating Instruction Symbia System S Series manual, uniformity can compensate for values exceeding 10%, however while integral uniformity exceed 7%, have to contract Siemens customer service representative. In conclusion, these results show that the intrinsic uniformity of the gamma camera under this condition is within an acceptable range; thus the gamma camera working in INMAS is performed well.
Determination of the Metastable Zone Width, Nucleation Kinetics, Structural and Optical Properties of KCl Doped KAP Crystal  [PDF]
M. A. Rahman, M. M. Rahman
Journal of Crystallization Process and Technology (JCPT) , 2015, DOI: 10.4236/jcpt.2015.52005
Abstract: Slow evaporation method was used to grow pure and KCl (10 mol%) doped KAP single crystal. The solubility and metastable zone width of aqueous solutions of pure and KCl (10 mol%) doped KAP crystal were evaluated to analyze the crystallization process. Measuring the induction period τ, the critical nucleation parameters like interfacial energy (σ), energy of formation of the critical nucleus (ΔG*) were determined using the classical theory of nucleation. The structural properties and optical constants of the grown crystals have been put to test and observed that the addition of KCl results in an enhancement of properties of the crystal. Grown crystals were characterized by powder X-ray diffraction. FTIR spectra confirmed the presence of KCl in pure KAP crystal. UV- Visible spectroscopic studies revealed that addition of KCl in pure KAP crystal increased transparency from 75% to 80%. The analysis of the optical absorption data revealed the presence of both indirect and direct transitions and both of these band gaps increased with the addition of KCl. The transmittance data was analyzed to calculate the refractive index, oscillator energy, dispersion energy, electric susceptibility, zero-frequency dielectric constant and both the real and imaginary parts of the dielectric permittivity as a function of photon energy. The moments of ε(E) were also determined. The dispersion i.e. spectral dependence of the refractive index was discussed according to the single-effective oscillator model proposed by Wemple and DiDomenico.
Fabrication of self-assembled monolayer using carbon nanotubes conjugated 1-aminoundecanethiol on gold substrates  [PDF]
Mohammed M. Rahman
Natural Science (NS) , 2011, DOI: 10.4236/ns.2011.33027
Abstract: The carbon nanotube (fundamentally Single- walled carbon nanotube, SWCNT) based on 1-Amino-undecanethiol (AUT) were extremely controlled (nano-level) organizing a vertical self-assembled monolayer (SAM) on gold single crystal surfaces. The produced nano-surfaces were explored particularly by Fourier Transform Infra-red Spectroscopy (FT-IR), Cyclic Voltammetry (CV), Raman spectroscopy, Electrochemi- cal quartz crystal microbalance (EQCM), and Atomic force microscopy (AFM) techniques. The SWCNTs were initially cut (chemically) into short pipes and thiol-derivatized at the open ends. The vertical aggregation of SWCNT-AUTs on chemically refined Au(111) substrates was made-up by their spontaneous chemical bonding among carboxyl derivatized SWCNT-COOH and AUT SAM on Au(111), via peptide bonds, or directly by synthesized SWCNT-AUT composites. Raman spectroscopy and AFM surface images obviously disclosed that the SWCNT- AUT (dia. 20~40 nm) has been vertically categorized d on gold (111) substrates, shaping a SAM with a perpendicular direction.
Value of Orthostatic Hypotension as a Prognostic Bed-Side Test in Heart Failure  [PDF]
Tarek M. Abdel Rahman
World Journal of Cardiovascular Surgery (WJCS) , 2012, DOI: 10.4236/wjcs.2012.24022

Background: Neurohumoral compensatory mechanisms play an important role in stabilizing the functional activity of patients with heart failure using the arms of autonomic nervous system. Orthostatic Hypotension (OH) is one of the most incapacitating symptoms of Cardiac Autonomic Dysfunction (CAD). OH can include sympathetic withdrawal which in turn leads to marked disability and deterioration of heart failure symptoms. Progressive Autonomic Dysfunction (AD) associated with progressive deterioration and impact on mortality of many diseases as hypertension, diabetes and other chronic diseases. The idea of using (OH) as a bed-side simple test expecting the risk of deterioration of cardiac function and furthermore on mortality open a gateway for preventive medicine and care to these group of patients. For more confidential prove, studying subjective and objective factors in heart failure patients became necessary to support these idea. Methods and Results: Sixty-Four patients with known history of heart failure were collected. All patients taking the fixed regiment of 4 drugs (diuretic, ACE inhibitor, Digitalis and B-blocker) in appropriate tolerated doses for two weeks prior to the study. History taking and all routine investigations were done for all patients. Grouping is based upon wither they have (OH) or not. Group-A found to have normal Bp response to standing; they were 24 patients (18 male and 6 female) of mean Age (45 ± 8 years). Group-B discovered to have significant (OH) and was 22 patients (16 males and 6 females) of mean Age (43 ± 4 years). The first Clinical and Echocardiographic examination was done and considered as a base-line characteristic. Then, a Call-back after 6 months for follow-up and second visit examination is recorded. Furthermore, every patient was advised to report

Investigation of Bandwidth Requirement of Smart Meter Network Using OPNET Modeler  [PDF]
M. Rahman, Amanullah Mto
Smart Grid and Renewable Energy (SGRE) , 2013, DOI: 10.4236/sgre.2013.44044
Abstract: Smart meter networks are the backbone for smart electrical distribution grid. Smart meter network requires the bidirectional communications medium and interoperability capability. As thousands of meters are interconnected in the smart meter network, it is vital to select an appropriate communication bandwidth to facilitate real-time two-way information flows and this will also allow further uptake of greenhouse-friendly technology options and enhance energy security. Optimized Network Engineering Tools (OPNET) Modeler is one of most powerful simulation tools for the analysis of communication networks. In this paper, several models of different structured smart meter networks were developed with network parameters which were connected with different communication links such as 10 BaseT and 100 BaseT in order to measure propagation delay, throughput, and utilization of the network. It was found that the propagation delay decreases with higher bandwidth. The other network parameters, namely network utilization and network throughput were also analysed. Based on the investigation, it is recommended that the 100 BaseT communication link is suitable for the smart meter network. The outcome of this paper provided a guideline to the future smart meter network developer so as to avoid catastrophic challenges faced by some of the distribution companies.
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