Kadir Has University Institutional Repository: Recent submissions
Now showing items 661-680 of 4497
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A Comparative Application of Machine Learning Approaches to Win-back Lost Customers
(Institute of Electrical and Electronics Engineers Inc., 2023)Today's consumer is more knowledgeable and conscious than in the past. For this reason, it is quite possible for consumers to leave their service/product providers and start receiving service from another service/product ... -
Studying Children's Object Interaction in Virtual Reality: A Manipulative Gesture Taxonomy for VR Hand Tracking
(Association for Computing Machinery, 2023)In this paper, we propose a taxonomy for the classification of children's gestural input elicited from spatial puzzle play in VR hand tracking. The taxonomy builds on the existing manipulative gesture taxonomy in human-computer ... -
Indoor positioning using federated Kalman Filter
(Institute of Electrical and Electronics Engineers Inc., 2018)In this paper, one of the multi sensor fusion techniques, namely Federated Kalman Filter (FKF) performance is studied for Indoor Positioning problem. Kalman Filters having centralized and decentralized structures are widely ... -
Optimization of graph affinity matrix with heuristic methods in dimensionality reduction of hypespectral images
(Institute of Electrical and Electronics Engineers Inc., 2019)Hyperspectral images include hundreds of spectral bands, adjacent ones of which are often highly correlated and noisy, leading to a decrease in classification performance as well as a high increase in computational time. ... -
Spline interpolation based channel estimation for ACO-OFDM over visible light channels
(Institute of Electrical and Electronics Engineers Inc., 2016)Visible light communication has been considered one of promising candidate technology to solve performance limitation due to bandwidth shortage at radio frequency (RF) band. In VLC system, the visible light is used not ... -
MuscleNET: Smart Predictive Analysis for Muscular Activity Using Wearable Sensors
(Institute of Electrical and Electronics Engineers Inc., 2022)Doing weightlifting training at home has become more popular during the pandemic. Unfortunately, exercising without professional help can lead to dangerous injuries such as muscle tearing. It is possible to create a smart ... -
Does Repeatedly Typing the Same Phrase Provide a Good Estimate of Expert Text Entry Performance?
(Association for Computing Machinery, 2023)To identify if novel/unfamiliar keyboard layouts like OPTI can outperform QWERTY, lengthy training through longitudinal studies is typically required. To reduce this logistical bottleneck, a popular approach in the literature ... -
Simple but effective GRU variants
(Institute of Electrical and Electronics Engineers Inc., 2021)Recurrent Neural Network (RNN) is a widely used deep learning architecture applied to sequence learning problems. However, it is recognized that RNNs suffer from exploding and vanishing gradient problems that prohibit the ... -
Dual Side Control Design for a 600W LCC Compensated Wireless Power Transfer System
(Institute of Electrical and Electronics Engineers Inc., 2022)The purpose of this paper is to design a dual side control for a 600 W LCC resonant WPT electrical bicycle with an 85 kHz resonant frequency. Primary side control use inverter voltage and current to determine mutual ... -
Exploring Discrete Drawing Guides to Assist Users in Accurate Mid-air Sketching in VR
(Association for Computing Machinery, 2022)Even though VR design applications that support sketching are popular, sketching accurately in mid-air is challenging for users. In this paper, we explore discrete visual guides that assist users' stroke accuracy and drawing ... -
Istanbul Dam Water Levels Forecasting Using ARIMA Models
(Institute of Electrical and Electronics Engineers Inc., 2022)River, sea, reservoir, and dam water levels are constantly measured by organizations and governmental bodies because of their environmental effects as well as their influence on human behavior. In this study, the monthly ... -
Classification of ADHD using ensemble algorithms with deep learning and hand crafted features
(Institute of Electrical and Electronics Engineers Inc., 2019)Attention Deficit Hyperactivity (ADHD) is a common neurodevelopmental disorder that typically appears in early childhood. Methods developed for diagnosing gives different results at different times. This is a major obstacle ... -
Android Malware Detection Using Machine Learning
(Institute of Electrical and Electronics Engineers Inc., 2020)The usage of mobile devices is increasing exponentially. There were lots of critical applications such as banking to health applications are available on mobile devices through mobile applications. This penetration and ... -
The effect of data augmentation on ADHD diagnostic model using deep learning
(Institute of Electrical and Electronics Engineers Inc., 2019)Attention Deficit Hyperactivity Disorder (ADHD) is a neuro-behavioral hyperactivity disorder. It is frequently seen in childhood and youth, and lasts a lifetime unless treated. The ADHD classification model should be ... -
Numerical Investigations on the Hydrodynamic Interaction between an E. Coli Minicell and a Micro Tweezers
(Institute of Electrical and Electronics Engineers Inc., 2021)The study of robotic micromanipulation is important for biomedical applications with live cells. Hydrodynamic trapping is arguably more favorable owing to the apparent lack of temperature gradients and tactile interaction. ... -
Multimodal retrieval with contrastive pretraining
(Institute of Electrical and Electronics Engineers Inc., 2021)In this paper, we present multimodal data retrieval aided with contrastive pretraining. Our approach is to pretrain a contrastive network to assist in multimodal retrieval tasks. We work with multimodal data, which has ... -
FEATURE SELECTION USING SELF ORGANIZING MAP ORIENTED EVOLUTIONARY APPROACH
(Institute of Electrical and Electronics Engineers Inc., 2021)Hyperspectral images are the multidimensional matrices consisting of hundreds of spectral feature vectors. Thanks to these large number of features, the objects on the Earth having similar spectral characteristics can ... -
Alternative transducer power gain expression in broadband matching network designs
(Institute of Electrical and Electronics Engineers Inc., 2017)In this paper, a reflection coefficient based transducer power gain expression has been derived, which is an alternative to the impedance based expression exists in the literature. A broadband double matching problem is ... -
Primary user detection in IEEE 802.15.4a based wireless sensor networks
(2013)Ultra wideband impulse radio (UWB-IR) technology has been defined in the IEEE 802.15.4a standard for location and ranging applications. In this paper, UWB-IR sensors are considered in wireless sensor networks (WSNs) with ... -
Spline based channel estimation for STBC-SM systems over fast-varying rician fading channels
(Institute of Electrical and Electronics Engineers Inc., 2015)In the STBC-SM systems, the information is carried both by STBC symbols and indices of the transmit antennas from which these symbols are transmitted. Channel estimation is a critical process at the receiver during the ...