Conference Papers

Permanent URI for this collectionhttps://idr.nitk.ac.in/handle/123456789/28506

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    Fuzzy file management
    (2011) Gupta, N.; Abhinav, K.R.; Annappa, B.
    In this paper we discuss a fuzzy logic approach to improve file management and organization. Incorporating fuzzy techniques in the file management process provides an intelligent way of maintaining files on the computer system. The fuzzy inference engine implements the decision making process required to select files for various file operations. This provides user convenience and system efficiency. We develop a fuzzy copy command in order to integrate fuzzy logic into the UNIX system's file management procedures and present examples which demonstrate the effectiveness of the command in organizing files. © 2011 IEEE.
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    Fuzzy sentiment analysis on microblogs for movie revenue prediction
    (IEEE Computer Society, 2013) Gupta, N.; Abhinav, K.R.; Annappa, B.
    With the advent of microblogging in recent years, people voice their views about products, especially movies. Microblogs are rich sources of data that can be analyzed to derive useful knowledge like larger public opinion on a product, which can be utilized to derive sales performance patterns. In this paper we propose a novel fuzzy approach for evaluating sentiments expressed in microblogs, which are incorporated in text mining methodologies to predict weekly movie revenues. © 2013 IEEE.
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    Fuzzy Logic Based Totem pole- PFC Converter
    (Institute of Electrical and Electronics Engineers Inc., 2023) Khaza, M.F.; Thakur, S.; Nagendrappa, H.; Balasubramanian, B.
    Power quality is always a major threat to grid-connected systems. Different topologies can be used in EV chargers. However, due to several limitations in the active Power Factor Correction (PFC) and proportional-integral (PI) based PFC has led to exploring advanced schemes. This paper presents novelty by introducing fuzzy logic with totem pole power factor correction. An attempt has been made to use this PFC for Electric Vehicle (EV) chargers. Totem pole topology offers high efficiency, low conduction loss, and high speed. The proposed scheme uses two loops with an inner loop having a current error amplifier to control the input line current and the outer loop involving fuzzy logic controller (FLC), to control the output voltage. This makes the input current be shaped in phase with input voltage accordingly with reference parameters. The proposed system is verified using extensive simulations in MATLAB/Simulink and the results are compared with PI-based PFC. Results show that the proposed scheme improves the performance significantly with total harmonic distortion (THD) limited to IEEE standards limit having nearly unity power factor. © 2023 IEEE.