Priyanka Rajpoot

Hospital Universiti Sains Malaysia

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Performance Analysis of Supervised Learning Algorithms based on Classification Approach

2019 IEEE 6th International Conference on Engineering Technologies and Applied Sciences (ICETAS) (2019)

Fazeel Ahmed Khan Adamu Abubakar Ibrahim Mohammad Salman Rais Priyanka Rajpoot Ambareen Khan

Machine learning algorithm integrates with various features and methods for learning. The performance metric has a major role in determining the capacity and ability of any machine learning algorithm. The supervised approach supports learning based on predefined parameters. The classification approach classifies the set of data with labels for training and evaluation purposes. This paper applies method of supervised learning algorithm based on classification approach to analyzed in terms of performance metrics. Some algorithms were applied in the experiment process to determine the clear outcome from them. The analysis gives an outcome based on certain parameters to obtain the results to understand the ability of these algorithm and their implementation in any potential use-cases.

Weighted Majority Algorithm

Statistical classification

Supervised Learning

Instance-based learning

One-class classification

10.1109/icetas48360.2019.9117394

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Citations (2)

Study of structural, electronic, optical and thermal properties of refractory material (CrAlB)

Materials Chemistry and Physics (2018)

Anugya Rastogi Priyanka Rajpoot U. P. Verma

Lattice constant

Density of states

Optical conductivity

Photon energy

10.1016/j.matchemphys.2018.02.043

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Citations (12)

Systematic investigation of structural, electronic, optical and thermal properties of ternary MoAlB; an ab initio approach

Materials Research Express (2018)

Priyanka Rajpoot Anugya Rastogi U. P. Verma

Structural, electronic, optical and thermal properties of molybdenum aluminum boride (MoAlB) have been analyzed systematically using the full potential linearized augmented plane wave method based on density functional theory at ambient condition as well as high pressure and high temperature. Density of states and band structure calculation reflect the metallic character of MoAlB. In addition to this, the electron charge density calculation reveals the strong covalent bonding, in between 'B' atoms as well as 'Mo' and 'B' atoms. Optical parameters exhibit anisotropic nature and MoAlB become transparent in ultraviolet region for the radiation of energy above 25 eV. The thermal properties were investigated by using the quasi-harmonic Debye model at high temperature and high pressure.

Debye model

Density of states

Charge density

Molybdenum trioxide

Supercell

10.1088/2053-1591/aaa803

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Citations (6)

The full-potential study of ErMg

Journal of Physics Conference Series (2017)

Meena Kumari Manju Sikarwar Priya Yadav Priyanka Rajpoot Shashank Nautiyal

The structural, electronic and magnetic properties of ErMg are investigated using the full potential linear augmented plane wave method based on density functional theory. The calculated structural parameters using LDA are in excellent agreement with the available experimental result. The calculated band structure is at 0 GPa. The valence and conduction bands are overlapped notable at the Fermi level (EF = 0 eV). Consequently, there is no energy gap. The calculated band structure shows that this alloy has metallic nature. Total magnetic moment at equilibrium lattice constant of ErMg intermetallic in B2 phase along with the magnetic moment on the atomic and interstitial sites have also been presented in this paper.

Lattice constant

10.1088/1742-6596/836/1/012044

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Citations (0)

Structural, electronic, magnetic and optical properties of polycrystalline FeAlB and Fe2AlB2: A first-principles study

AIP conference proceedings (2020)

Priyanka Rajpoot Anugya Rastogi Pritam Yadav Meena Kumari Shashank Nautiyal

A systematic study of structural, electronic, magneticand optical properties of FeAlB and Fe2AlB2 have been done using the first-principles approach. The equilibrium structural parameters of Fe2AlB2 have been obtained by using PBE-GGA functionalare in good agreement with experimental data. As a result of the electronic propertiesof these materials, the electronic band structure and density of states in both without spin effect and spin effect show the metallic nature. FeAlB and Fe2AlB2 are found to be ferromagnetic with the total magnetic moment of 2.86µB and 2.09µB, respectively. Analysis of optical properties shows that high static dielectric constant value of FeAlB and Fe2AlB2 are 76.49 and 127.36 and have high reflectivity in IR-region. These materialshave frequency-selective properties.

10.1063/5.0017670

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Citations (3)

Insights into structural, electronic, optical and thermoelectric properties of WB and WAlB: a first principle study

The Philosophical Magazine A Journal of Theoretical Experimental and Applied Physics (2018)

Priyanka Rajpoot Anugya Rastogi U. P. Verma

Detailed investigations on structural, electronic, optical and thermoelectric properties of WB and WAlB have been done by using a full-potential linearised augmented plane wave method. Different approximations have been used to treat the exchange–correlation potential. The PBEsol-GGA method is found to be the most suitable for WB and WAlB. The obtained values of the equilibrium structural parameters such as lattice constants, volume and bulk modulus are in good agreement with the available experimental and theoretical data. The results of electronic charge density plots show that WB has a strong covalent bond between B-B and an ionic bond between W-B. In case of WAlB, the distance between any two atoms is more than the corresponding interatomic distance in WB. The band structure and density of states around the fermi level suggest that WB has a metallic nature and WAlB has a semimetal-like character. The optical properties are determined and analysed in detail for the first time. The larger reflectivity in the low-energy region (infrared) indicates that these materials can be used as a coating material to remove solar heating. The effects of temperature on thermoelectric parameters are also studied for the first time. High value power factor and high thermal conductivity suggest that WB and WAlB are potential candidates for thermoelectric technological applications.

Density of states

Lattice constant

10.1080/14786435.2018.1500746

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Citations (10)

Structural and electronic properties of rare earth skutterudites EuRu4P12: a first principle study

Journal of Physics Conference Series (2017)

Priya Yadav Meena Kumari Priyanka Rajpoot Shashank Nautiyal U. P. Verma

Ternary skutterudites materials exhibit a large variety of electronic properties due to the unpaired 3d and 4f electronic configuration of the transition and rare-earth elements respectively. In this communication we have performed structural optimization and electronic structure calculation of the Rare Earth Skutterudite EuRu4P12, using FP-LAPW method. The optimized lattice parameter is in good agreement with the available experimental value. No band gap between the valence band and the conduction band has been observed which indicates that its character is metallic.

Skutterudite

10.1088/1742-6596/836/1/012041

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Citations (0)

Structural, electronic and magnetic properties of metal thiophosphate InPS₄

Journal of Physics Conference Series (2017)

Priyanka Rajpoot Vikas Nayak Meena Kumari Priya Yadav Shashank Nautiyal

The non-centrosymmetric crystal, InPS4, has been investigated by means of density functional theory (DFT). In this paper we have calculated the structural parameters, electronic band structures, density of states plot and magnetic properties using full potential linearized augmented plane wave (FP-LAPW) method. The exchange correlation has been solved employing the generalised gradient approximation due to Perdew-Burke-Ernzerhof. The calculations are performed both without spin as well as spin polarized. The results show that InPS4 is an indirect band gap semiconductor with (N-Г) energy gap of 2.32eV (without spin) and 1.86eV in spin up and down channels.The obtained lattice parameters and energy gap agree well with the experimental results. Our reported magnetic moment results show that the property of InPS4is nonmagnetic.

Thiophosphate

Lattice constant

Density of states

10.1088/1742-6596/836/1/012033

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Citations (1)

Physical properties of molybdenum monoboride: Ab-initio study

The Philosophical Magazine A Journal of Theoretical Experimental and Applied Physics (2017)

Priyanka Rajpoot Anugya Rastogi U. P. Verma

Abstract The Ab initio investigations on structural, electronic, optical and thermal properties of MoB have been reported using full potential linearised-augmented plane wave method within the framework of density functional theory. The exchange and correlation potentials were calculated using the Perdew-Burke-Ernzerhof-Sol generalised gradient approximation. The calculated equilibrium lattice constants and cell volume are in excellent agreement with the experimental results as compared to the available theoretical data. Electronic band structure shows that MoB is metallic in nature. From the partial densities of states of MoB it has been found that major contribution on the Fermi level is due to Mo-4d states. Among the reported optical parameters the large value of reflectivity at low energy shows that MoB can be used as a coating material in IR region. Maximum absorption in extreme UV region shows that it can be used in production of electricity through solar power in space vehicles. Various thermal properties have been calculated in a wide temperature range at high pressures. Change in thermal expansion coefficient with respect to temperature shows that anharmonic effect in MoB is very weak at high temperature. The optical and thermal properties of MoB are presented for the first time in this work.

Lattice constant

10.1080/14786435.2017.1407881

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Citations (7)

Properties of group III–V semiconductor: BAs

Bulletin of Materials Science (2019)

Anugya Rastogi Priyanka Rajpoot U. P. Verma

Debye model

10.1007/s12034-019-1758-8

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Citations (17)