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VOLUME 5, ISSUE 8, AUGUST 2017
An Investigation of the Accuracy of the Measurement of Load Reduction for Demand Response Programs offered to Residential Customers
Ghazaleh Sarfi, Amin Niaz Azari
Reactive Power Compensation using D-STATCOM
Adeesh Sharma, Prof. Himmat Singh
Performance Analysis of Multifunctional Dynamic Voltage Restorer (DVR) for Power Quality Improvement in Distribution System
V. Rashmi, B. Viswanath
“Centralized Locking System: A Real Time Fingerprint Authenticated Lab Access System using 2 Wire Communication (CAN)”
Usha H.N., Aishwarya Hariths
STAMP: Enabling Privacy Conserving Location Evidences for Cellular Users
Shimpleshwari, Prof. Vivekanandreddy
Attribute-based Hybrid Encryption in Cloud Computing Environment using Verifiable Delegation
Ashwini M Magadi, Prof. Vivekanandreddy
Mapping Bug Report to Pertinent Records
Archana, Prof. Vivekanandreddy
A Ranked Index-Tree Multi-keyword Search Method for Encoded Cloud Data
Soumyashree Malligeppagol, Prof. Vivekanandreddy
Interfacing of Renewable Energy Sources to Grid with Power-Quality Improvement
Ajay Kumar Muthele, Dr. Vijay Bhuria
Robot Path Planning with L * Algorithm for Linear Computational Complexity, Considering Distance and Slope
Helga V Lobo, Dr. S.A. Angadi
Inrush Current and Fault Current Discrimination by using Wavelet Transform
Ashoka HN, Sunil AN
|DOI: 10.17148/IJIREEICE.2017.5811
Design of OFDM Transceiver using Mixed Radix 8-2 Algorithm
Lokhande Komal Mohan, Prof. Dr. S.P. Mohani
Validation of a Model to Improve Content Assimilation in Object Oriented Programming
Ivelisse Teresa MachĂn Torres
Voltage Stability Enhancement for Unbalanced Multiphase Distribution Networks
Jyothsna, H N Ashoka
|DOI: 10.17148/IJIREEICE.2017.5814
A New Multilevel Voltage Source Inverter with SPWM for Medium Voltage Application
Manjunath A, Dr. Shankaralingappa C B
Probability Analysis to Prediction Reliability of Power System
Husam Muhsin, Mohammed Sabri
Design of Compact Multiband Antenna for S/C/X-band Applications
Rajwinder Kaur, Simranjit Singh
Analysis of Gestational Diabetes using Data Mining Algorithms
J. Sharmila, G. Seenuvasan
Simulation of Efficient MPPT Algorithm under Partial Shading Condition for Boost Converter System
Mahmooda Mubeen
Compensation of Voltage Flicker by Using Statcom and Facts Devices
D. Mohd Mustafa, P. Sridhar, V. Vijaya Bhaskar, P.V.S. Aditya
Nearest Keyword Set Search in Multi- Dimensional Dataset
P. Dhivya, S. Priya
Model Reference Adaptive Fault Tolerant Flight Control Framework for Structural Damage in Aircraft
Anirudh Indana, Srinivas Mallimoggala, Siva Ganesh G
SSGR: Topic Specific Expert Finding in Twitter
Pooja Mallasure, Rashmi R. Rachh
Abstract
An Investigation of the Accuracy of the Measurement of Load Reduction for Demand Response Programs offered to Residential Customers
Ghazaleh Sarfi, Amin Niaz Azari
DOI: 10.17148/IJIREEICE.2017.5801
Abstract: In this paper, the evaluation of load reduction through customer baseline load calculation is investigated. Moreover, the impact of accuracy of this calculation on the peak time rebate program offered to residential customers is investigated. In a hypothetical case, this program is offered to residential customers and its economic performance is evaluated with respect to the customer baseline load accuracy performance. For the purpose of this analysis, two popular methods of High5of10 (commonly known as NYISO method) and regression, and their adjusted forms are selected to compute the customer baseline load. Then, this calculation is utilized to examine the performance of a hypothetical case of peak time rebate program offered to 300 residential customers collected by the Irish Commission for Energy Regulation smart metering trial dataset. Based on the results of the case study, this hypothetical utility pays over 50 percent of its revenue as a rebate just because of the inaccuracy of the customer baseline load calculation methods. This loss would increase if the aforementioned methods get adjusted for the morning consumption. In the end, it is discussed that peak time rebate programs can cause an unfair redistribution of the utility’s revenue. Moreover, it is argued that such random distribution of rebates can cause a financial loss to the customers eventually.
Keywords: Demand Response (DR), Peak Time Rebate (PTR), Percent Accuracy Metrics, Percent Bias Metrics, Customer Baseline Load (CBL).
Keywords: Demand Response (DR), Peak Time Rebate (PTR), Percent Accuracy Metrics, Percent Bias Metrics, Customer Baseline Load (CBL).
Abstract
Reactive Power Compensation using D-STATCOM
Adeesh Sharma, Prof. Himmat Singh
DOI: 10.17148/IJIREEICE.2017.5802
Abstract: In this paper, A Distribution Static Synchronous Compensator (D-STATCOM) is used for improving the power factor, power quality and to control power flow control in the distribution line. It used to give reactive and active power compensation in the distribution line. The power depends on the power factor of the loads connected to the transmission line. The D-STATCOM used a control strategy based on control symmetrical component theory. To decrease the reactive power and to minimize the undesirable load to require maintains the flow of reactive power. As a result, the power factor of the load descant, leading to the limitation of the active power flow in the line. The D- STATCOM is a power electronics based on advanced device can be used to control power flow in the distribution line. This paper based on the PWM inverter and voltage source inverter to improve the power factor of the load by injecting suitable reactive power in the power distribution line. The simulation of D-STATCOM provides full reactive power compensation and also provides real power compensation in the distribution line for different loads.
Keywords: FACTS, Power flow, Distribution Line, Reactive Power, Real Power, D-STATCOM.
Keywords: FACTS, Power flow, Distribution Line, Reactive Power, Real Power, D-STATCOM.
Abstract
Performance Analysis of Multifunctional Dynamic Voltage Restorer (DVR) for Power Quality Improvement in Distribution System
V. Rashmi, B. Viswanath
DOI: 10.17148/IJIREEICE.2017.5803
Abstract: In recent days, the major concern in distribution system is power quality. The power quality is affected by various factors of the electrical network. Power quality problems such as voltage and frequency variation, harmonic contents affect the performance of Distribution System. Such problem has to be compensated by using CPDs. The energy control in distribution system is discussed by using multi-functional dynamic voltage restorer (DVR) control strategy. For the protection of customers for sudden change in voltage DVR is used. To improve the transient response and to eliminate the steady state error in DVR response, the Posicast and P+Resonant controllers are used respectively. The innovation here is that the DVR acts as a virtual impedance with the main aim of protecting PCC voltage and limits the fault current by using Flux control method. The simulations are performed with two types of loads:1) a constant power load and 2) a motor load using MATLAB/SIMULINK software.
Keywords: Dynamic voltage restorer (DVR), emergency control, voltage sag, voltage swells.
Keywords: Dynamic voltage restorer (DVR), emergency control, voltage sag, voltage swells.
Abstract
“Centralized Locking System: A Real Time Fingerprint Authenticated Lab Access System using 2 Wire Communication (CAN)”
Usha H.N., Aishwarya Hariths
DOI: 10.17148/IJIREEICE.2017.5804
Abstract: In the existing system, we have finger print authenticated locking system but we don’t have a system where a room can be accessed remotely. Unlike the use of other forms of authentication, such as passwords or tokens, biometric recognition provides a strong link between an individual and a claimed identity. The CAN based system for Locking/Unlocking of Labs as CAN supports number of nodes. Each Lab can be treated as Individual Locking Unit. The Lab in charge of Finger print is stored as the database in Finger print sensor which acts as the central node present at a central place. When the Central Node reads the Finger print, it checks for authenticity. If it finds it is authenticated then the information will be sent to respective node through CAN bus, to open the respective Lab.
Keywords: Biometrics, Fingerprint authentication, CAN (Controller Area Network).
Keywords: Biometrics, Fingerprint authentication, CAN (Controller Area Network).
Abstract
STAMP: Enabling Privacy Conserving Location Evidences for Cellular Users
Shimpleshwari, Prof. Vivekanandreddy
DOI: 10.17148/IJIREEICE.2017.5805
Abstract: In this real world, location-based utilities are becoming immensely prominent. These offerings primarily depend on users’ present location and also on history of users location. Without carefully designed safety system for web consumers, malicious or harmful users may lie about their spatial temporal provenance to show their past locations. The data can be faked and can be distorted for meeting particular prerequisites. Location dependent offerings need the user to provide location evidence at a particular time in use. There are a few cases wherein consumers may cheat on their locations. So here, one secure approach called Spatial-Temporal provenance assurance with Mutual Proofs (STAMP) for web application users is introduced. STAMP is designed for web users producing masked evidence for every different in a allotted setting. Anyhow, it can easily accommodate trusted web users and privacy for web consumer by generating mask id so this ensures the trustworthiness and non-transferability of the location evidences and make safe for user’s privateness. Prototype implementation of this android application depicts that it is less expensive in phrases of estimation and system resources.
Keywords: Location evidences, privacy, trustworthiness, spatial-temporal provenance.
Keywords: Location evidences, privacy, trustworthiness, spatial-temporal provenance.
Abstract
Attribute-based Hybrid Encryption in Cloud Computing Environment using Verifiable Delegation
Ashwini M Magadi, Prof. Vivekanandreddy
DOI: 10.17148/IJIREEICE.2017.5806
Abstract: In cloud computing for the secure access of the data, data owners can go for the encryption that is based on the attributes to encrypt the data that has been stored in the data center. Users delegate the decryption part of work to the servers of cloud to reduce the cost of computing. So attribute based encryption technique comes into picture. But delegation by the servers of the cloud lead to the tampering of the data or not providing access to the eligible users for cost saving purpose.
Keywords: Verifiable delegation, Attribute based encryption, cipher text, outsourcing.
Keywords: Verifiable delegation, Attribute based encryption, cipher text, outsourcing.
Abstract
Mapping Bug Report to Pertinent Records
Archana, Prof. Vivekanandreddy
DOI: 10.17148/IJIREEICE.2017.5807
Abstract: Once the bug report happened, it's an intense strategy to limit the bug. It's going on for putting the bug. That the tedious strategy for putting the bugs taking longer, for the most part this time taken is very settling the bugs. A device for positioning all the origin documents of a project with reference to however contain the clarification for the bug world adjust designers to thin down their search and potentially could lead on to an extensive increment in efficiency. Adaptive Rank approach that use domain data through specific disintegrations of ASCII content documents into ways, API description of library parts used in the code, the bug-settling history, and in this way the code changes history. Given a bug report, the ranking score of each source record is computed as a weighted combination of an associate array of choices coding space data, wherever the weights are prepared mechanically on already settled bug reports utilizing Learning-to-rank Technique.
Keywords: Bug reports, learning to rank, Adaptive rank, software maintenance.
Keywords: Bug reports, learning to rank, Adaptive rank, software maintenance.
Abstract
A Ranked Index-Tree Multi-keyword Search Method for Encoded Cloud Data
Soumyashree Malligeppagol, Prof. Vivekanandreddy
DOI: 10.17148/IJIREEICE.2017.5808
Abstract: Cloud computing is becoming increasingly famous now a days because of its advantages like adaptability, accessibility, and on-demand access for network. These tempting qualities of cloud computing making organizations and people to outsource their sensitive and huge amount information to the cloud instead of maintaining external costly storage disks. In spite of the fact that there are many advantages there is always been security issue when out sourcing data in the form of plain text. This security issue actuates information proprietors to encode information and outsource to the cloud. By encoding information enhances the information security however the information effectiveness is reduced because of the fact that seeking on scrambled information is troublesome. To overcome from this issue, proposing a rated tree structured index-tree and allowing system to follow the Greedy depth first search over index tree for fetching files which are matched with given multi-keyword input query.
Keywords: Multi-keyword, Term frequency, Inverse document frequency.
Keywords: Multi-keyword, Term frequency, Inverse document frequency.
Abstract
Interfacing of Renewable Energy Sources to Grid with Power-Quality Improvement
Ajay Kumar Muthele, Dr. Vijay Bhuria
DOI: 10.17148/IJIREEICE.2017.5809
Abstract: In the field of Renewable energy resources (RES) are connected in distribution systems by using power electronic converters. Inside this paper presents a detailed control idea of reach maximum benefit from grid-interfacing inverters put in 3-phase 4-wire distribution systems. The inverter is controlled to perform an electronic device by incorporating active power filter functionality. The inverter can thus be utilized as: 1) Inject power generated from RES to the grid, and 2) unbalance current, load current harmonics, load reactive power demand and load neutral current compensate by shunt active power filter. Those all functions could also be accomplished either individually or simultaneously. With such a control, the mix of grid-interfacing inverter and the 3-phase 4-wire linear/non-linear unbalanced load at PCC appears as balanced linear load to the grid. With using of MATLAB/Simulink software this new concept is demonstrated.
Keywords: Active Power Filter (APF), Distributed Generation (DG), Power Quality (PQ), Point of Common Coupling (PCC).
Keywords: Active Power Filter (APF), Distributed Generation (DG), Power Quality (PQ), Point of Common Coupling (PCC).
Abstract
Robot Path Planning with L * Algorithm for Linear Computational Complexity, Considering Distance and Slope
Helga V Lobo, Dr. S.A. Angadi
DOI: 10.17148/IJIREEICE.2017.5810
Abstract: This paper describes implementation of L* algorithm which provides linear computational complexity in robot path planning which could not be achieved by A*, D* and other predecessors. The proposed work executes the L* algorithm by considering the path slope in every move. The proposed method is implemented using MATLAB software tool. The results of implementation are satisfactory. The average number of times the list is accessed for computing the path in a grid of 9 cells is 6, average time in a grid of 25 cells is 16, in a grid of 100 cells it is 75, and the results are comparable to existing approaches.
Keywords: Robot path planning, linear computational complexity, slope.
Keywords: Robot path planning, linear computational complexity, slope.
Abstract
Design of OFDM Transceiver using Mixed Radix 8-2 Algorithm
Lokhande Komal Mohan, Prof. Dr. S.P. Mohani
DOI: 10.17148/IJIREEICE.2017.5812
Abstract: Orthogonal Frequency Division Multiplexing (OFDM) is a Frequency Division Multiplexing (FDM) technique used as a digital multi-carrier modulation method. OFDM uses the spectrum efficiently compared to Frequency Division Multiple Access (FDMA) by spacing the channels much closer and creating all the carriers orthogonal to one another. The Existing system, may fail to support high speed efficient data transmission. To improve the speed and maximum amount of data transmission OFDM system may be used. Orthogonality of the carriers prevents interference between the closely spaced carriers and provides high bandwidth efficiency. This work focuses on design and implementation of OFDM transmitter and receiver using the mixed radix8-2 algorithm The design has been coded in VERILOG. Timing simulation is analyzed using Xilinx ISE 13.1.
Keywords: OFDM, IFFT, FFT, ICI.
Keywords: OFDM, IFFT, FFT, ICI.
Abstract
Validation of a Model to Improve Content Assimilation in Object Oriented Programming
Ivelisse Teresa MachĂn Torres
DOI: 10.17148/IJIREEICE.2017.5813
Abstract: The contemporary world requires more and more rigorously the use of information technologies, so it is necessary to improve teaching of programming. The object-oriented paradigm models the real world, and adds a different structure to programming. Their learning is not always easy to assimilate, there are difficulties in syntax and semantics, as well as in programming logic. The present report contributes to the validation of a model, which integrates concepts and methods of Object Oriented Programming, using multiple intelligences, to improve the assimilation of contents. The model involves several components and enhances the traditional architecture of the tutors systems. In the validation process, the pre-test and the post-test were performed to evaluate the behavior of two groups: experimental and control. The results of the validation show that the experimental group reached higher levels in the variables subject to editing, which shows results favorable to its application.
Keywords: Multiple intelligences, model, intelligent tutors, object-oriented programming.
Keywords: Multiple intelligences, model, intelligent tutors, object-oriented programming.
Abstract
A New Multilevel Voltage Source Inverter with SPWM for Medium Voltage Application
Manjunath A, Dr. Shankaralingappa C B
DOI: 10.17148/IJIREEICE.2017.5815
Abstract: This paper introduces a new Five-Level Voltage Source Inverter (VSI) for medium voltage high-power applications.This VSI can operate over an extensive variety of voltages and it has higher quality output voltage waveform and less quantity of components. Two methods are used to generate an output level, to control and adjust the flying capacitors to their coveted values. In the first method a simpleSPWM scheme is used by the comparing sinewave with output levels and second method involves comparison between sine wave with triangular signals. Second method gives better performance. The proposed five level converter is simulated in MATLAB/Simulink environment.
Keywords: Multilevel converter, Sinusoidal Pulse Width Modulation (SPWM), DC–AC power conversion.
Keywords: Multilevel converter, Sinusoidal Pulse Width Modulation (SPWM), DC–AC power conversion.
Abstract
Probability Analysis to Prediction Reliability of Power System
Husam Muhsin, Mohammed Sabri
DOI: 10.17148/IJIREEICE.2017.5816
Abstract: The paper deals with probability analysis to estimate of reliability level for therepairable system and expected time to failure and time that required to repairing the system. The study applied on thepart of 400 KV super grid power systemto find a weak point in the network.Using numerical techniques to calculate the reliability indexes in qualitative analysisPath Tracing Method (PTM) which analyze the complex network to give minimum cut sets and quantitative analysis Fussell algorithm thatgives over predict characteristic for the failureprobabilityby using MATLAB program. Then submitting suggestions and solutions to improve the power system in theplanning stage to investments of energy as a cost and reduce a losses energy so obtain network more stable and reliable. Results can show the zones have low-reliability and discuss the factors cause to it and their importance to ensure exploits the energy between regions and stability whole a power system.
Keywords: Failure Probability, Reliability Analysis, PTM Techniques, Fussell Model.
Keywords: Failure Probability, Reliability Analysis, PTM Techniques, Fussell Model.
Abstract
Design of Compact Multiband Antenna for S/C/X-band Applications
Rajwinder Kaur, Simranjit Singh
DOI: 10.17148/IJIREEICE.2017.5817
Abstract: In this paper a Ω-shaped slotted Microstrip patch antenna having asymmetric U-shaped slot on reduced ground is presented. The antenna is designed using High Frequency Structural Simulator (HFSS) software. This antenna is designed for S-band, C-band and X-band applications. The proposed antenna is dual polarized multiband antenna. The proposed antenna is designed using FR4-epoxy substrate having permittivity 4.4. This material is selected as it has considerable mechanical strength and near zero water absorption. In this paper effect of variation of material, effect of height variation of substrate is also shown. Overall it is compact in size and has shown better results in terms of return loss, gain and VSWR.
Keywords: Microstrip patch, HFSS, compact antenna, FR4-epoxy, multiband, s/c/x-band.
Keywords: Microstrip patch, HFSS, compact antenna, FR4-epoxy, multiband, s/c/x-band.
Abstract
Analysis of Gestational Diabetes using Data Mining Algorithms
J. Sharmila, G. Seenuvasan
DOI: 10.17148/IJIREEICE.2017.5818
Abstract: Data Mining is used to discover new patterns from large volume of data. In data mining the classification is very important task. Gestational diabetes is a condition characterized by high blood sugar levels that is first predictable during pregnancy period of a woman. Diabetes is a disease in which levels of blood glucose, also called blood sugar, are above normal. People with diabetes have problems converting food to energy. Generally, after a meal, the body breaks food down into glucose, which the blood carries to cells throughout the body. Cells use insulin, a hormone made in the pancreas, to help them convert blood glucose into energy. Through the second and third trimester, a mother's diabetes can lead to over-nutrition and excess growth of the baby. Having a large baby rises risks during labour and delivery. In addition, when foetal over-nutrition occurs and hyper insulinemia results, the baby's blood sugar can drop very low after birth, since it won't be receiving the high blood sugar from the mother. However, with proper treatment, a gestational diabetic mother can deliver a healthy baby despite having diabetes. In this paper, many classification algorithms like J48, simple CART and NaĂŻve bayes algorithm are used to diagnose the diabetes in pregnant women and they are compared for their accuracy levels.
Keywords: Data Mining, Classification, Gestational Diabetes, Blood glucose, J48, CART, NaĂŻve bayes.
Keywords: Data Mining, Classification, Gestational Diabetes, Blood glucose, J48, CART, NaĂŻve bayes.
Abstract
Simulation of Efficient MPPT Algorithm under Partial Shading Condition for Boost Converter System
Mahmooda Mubeen
DOI: 10.17148/IJIREEICE.2017.5819
Abstract: The Perturb & Observe (P&O) algorithms are widely used in control of MPPT due to their simple structure and reduced number of necessary measured parameters. This algorithm has the drawback that after reaching the maximum power point its starts deviating continuously all the time resulting in substantial amount of power loss at maximum power point. Although this algorithm is quite simple to implement and requires only one voltage sensor, the cost of implementation of this algorithm is low. On the other hand the Incremental Conductance(IC) method has the advantage over the Perturb & Observe as it does not oscillate around the maximum power point under rapidly varying environmental conditions. The disadvantage of the Perturb and observe method to track the peak power under fast varying atmospheric condition is overcome by INC method. The INC can determine that the MPPT has reached the MPP and stop perturbing the operating point. If this condition is not met, the direction in which the MPPT operating point must be perturbed can be calculated using the relationship between dl/dV and –I/V Increment size determines how fast maximum power point is tracked. Fast tracking can be achieved with bigger increments but the system might not operate exactly at the maximum power point and oscillate about instead. This method has complex circuitry, accuracy of the method depends on the iteration size, which is usually fixed for the conventional incremental conductance method. In this paper the proposed scanning MPPT adjusts the duty cycle corresponding to the global maxima. The power obtained from the proposed controller is higher and non-oscillatory around the MPP compared to P&O and INC controllers which fails under partial shading condition when multiple peaks come into play. The scanning technique algorithm determines the maximum power delivering capacity of the panel at a given operating condition and controls the PCU to extract the same from the PV panel.
Keywords: PV Panel, MPP, Boost converter, VSI & SPWM.
Keywords: PV Panel, MPP, Boost converter, VSI & SPWM.
Abstract
Compensation of Voltage Flicker by Using Statcom and Facts Devices
D. Mohd Mustafa, P. Sridhar, V. Vijaya Bhaskar, P.V.S. Aditya
DOI: 10.17148/IJIREEICE.2017.5820
Abstract: Voltage flicker is considered as one of the most severe power quality problems (especially in loads like electrical arc furnaces) and much attention has been paid to it lately. Due to the latest achievements in the semiconductors industry and consequently the emergence of the compensators based on voltage source converters, FACTS devices have been gradually noticed to be used for voltage flicker compensation. This paper covers the contrasting approaches; dealing with the voltage flicker mitigation in three stages and assessing the related results in details. Initially, the voltage flicker mitigation, using FCTCR (Fixed Capacitor Thyristor Controlled Reactor), was simulated. Secondly, the compensation for the Static Synchronous Compensator (STATCOM) has been performed. In this case, injection of harmonics into the system caused some problems which were later overcome by using 12-pulse assignment of STATCOM and RLC filters. The obtained results show that STATCOM is very efficient and effective for the flicker compensation. All the simulations have been performed on the MATLAB Software.
Keywords: Fixed Capacitor Thyristor Controlled Reactor, STATCOM, Fact device, Voltage controller
Keywords: Fixed Capacitor Thyristor Controlled Reactor, STATCOM, Fact device, Voltage controller
Abstract
3D Object Retrieval by using View- Model Joint Relevance Technique
K. Sritha Rani
DOI: 10.17148/IJIREEICE.2017.5821
Abstract: Extensive research efforts have been dedicated to 3D model retrieval in recent decades. Recently, view- based methods have attracted much research attention due to the high discriminative property of multi-views for 3D object representation.3-D object retrieval has been extensively used wide range in various digital image processing applications which includes medicine, security, biometrics, genetics etc. In this work, collaboration of both view-model relevance among 3D objects for retrieval and 3D objects perception is performed based on various graph structures. Object hypergraph structure (view information) is implemented at initial stage to perceive the 3D objects in multiple views and an object graph is constructed for model data for obtaining the information about the relationship between the different features of the obtained 3D objects. Better performance and high efficiency show the supremacy of proposed work over traditional state-of-art methods.
Keywords: 3D object retrieval, Object hypergraph structure, View-model relevance, object graph.
Keywords: 3D object retrieval, Object hypergraph structure, View-model relevance, object graph.
Abstract
Nearest Keyword Set Search in Multi- Dimensional Dataset
P. Dhivya, S. Priya
DOI: 10.17148/IJIREEICE.2017.5822
Abstract: A spatial database manages multidimensional objects provides fast access to those objects based on different selection criteria. The importance of spatial databases is reflected by the convenience of modeling entities of reality in a geometric manner. For example, locations of restaurants, hotels, hospitals and so on are often represented as points in a map, while larger extents such as parks, lakes, and landscapes often as a combination of rectangles. Many functionalities of a spatial database are useful in various ways in specific contexts. For instance, in a geography information system, range search can be deployed to find all restaurants in a certain area, while nearest neighbor retrieval can discover the restaurant closest to a given address. Conventional spatial queries, such as range search and nearest neighbor retrieval, involve only conditions on objects‟ geometric properties. Today, many modern applications call for novel forms of queries that aim to find objects satisfying both a spatial predicate, and a predicate on their associated texts. For example, instead of considering all the restaurants, a nearest neighbor query would instead ask for the restaurant that is the closest among those whose menus contain “steak, spaghetti, brandy” all at the same time. Currently, the best solution to such queries is based on the IR2-tree, which, as shown in this paper, has a few deficiencies that seriously impact its efficiency. Motivated by this, this work develop a new access method called the spatial inverted index that extends the conventional inverted index to cope with multidimensional data and comes with algorithms that can answer nearest neighbor queries with keywords in real time.
Keywords: Spatial database, geometric, spatial queries, IR2-tree, multidimensional data.
Keywords: Spatial database, geometric, spatial queries, IR2-tree, multidimensional data.
Abstract
Model Reference Adaptive Fault Tolerant Flight Control Framework for Structural Damage in Aircraft
Anirudh Indana, Srinivas Mallimoggala, Siva Ganesh G
DOI: 10.17148/IJIREEICE.2017.5823
Abstract: This paper examines an Adaptive fault tolerant flight control for an aircraft that experiences structural damage. A damage degree is introduced for parameterization of the damaged aircraft dynamics. Demonstrating of the damaged flight dynamics and control configuration is presented by following numerical examination of a Boeing 747- 100 aircraft model. Here a damage tolerant control framework is introduced for aircraft suffering with vertical tail damage. Model Reference Adaptive control (MARC) procedure is used to address the stability recuperation and robustness of performance in keeping up safe flight operation of the aircraft. The adequacy of the proposed control approach is approved in examination with a standard Linear Quadratic Regulator (LQR) outline through numerical recreations.
Keywords: Adaptive control, Fault tolerant flight control (FTFC), Model reference adaptive control (MRAC), Linear quadratic regulator (LQR), Structural damage.
Keywords: Adaptive control, Fault tolerant flight control (FTFC), Model reference adaptive control (MRAC), Linear quadratic regulator (LQR), Structural damage.
Abstract
SSGR: Topic Specific Expert Finding in Twitter
Pooja Mallasure, Rashmi R. Rachh
DOI: 10.17148/IJIREEICE.2017.5824
Abstract: With proliferation of social networking sites, large number of tweets, posts and messages are available which can be analysed to extract some useful information. Identifying topic experts from these posts is a daunting task. Collecting and storing various types twitter data in terms of real world dataset is difficult and analyzing of data is too tedious. Earlier approaches for expert finding partially utilized relations among user and twitter list. In this project, a semi-supervised graph based ranking (SSGR) solution has been implemented to compute the global authority of users in the offline mode. The local relevance between users and the given query is computed in the online mode. By taking the advantage of the local relevance and global authority of users, all the users are ranked and the top users with highest ranking are selected.
Keywords: twitter, expert search, micro-blogging, list, and graph based ranking.
Keywords: twitter, expert search, micro-blogging, list, and graph based ranking.