Browsing by Author "Alhajj, Reda"
Now showing items 1-20 of 30
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Analysis and prediction in sparse and high dimensional text data: The case of Dow Jones stock market
Sert, Onur Can; Şahin, Salih Doruk; Özyer, Tansel; Alhajj, Reda (Elsevier B.V., 2020)In this research, we proposed a text analysis system to predict stock market movements using news and social media data. It is a scalable prediction system for sparse and high dimensional feature sets. Using the developed ... -
Automation of active reconnaissance phase: An automated API-based port and vulnerability scanner
Malkawi, Malek; Özyer, Tansel; Alhajj, Reda (Association for Computing Machinery, Inc, 2021)The unprecedented growth in technology has increased the importance of the required information security that is still hard to be reached. Recently, network and web application attacks have occurred frequently, causing ... -
BreCaHAD: A dataset for breast cancer histopathological annotation and diagnosis
Aksaç, Alper; Demetrick, Douglas J.; Özyer, Tansel; Alhajj, Reda (BioMed Central Ltd., 2019)Objectives: Histopathological tissue analysis by a pathologist determines the diagnosis and prognosis of most tumors, such as breast cancer. To estimate the aggressiveness of cancer, a pathologist evaluates the microscopic ... -
CACTUS: cancer image annotating, calibrating, testing, understanding and sharing in breast cancer histopathology
Aksaç, Alper; Özyer, Tansel; Demetrick, Douglas J.; Alhajj, Reda (NLM (Medline), 2020)OBJECTIVE: Develop CACTUS (cancer image annotating, calibrating, testing, understanding and sharing) as a novel web application for image archiving, annotation, grading, distribution, networking and evaluation. This helps ... -
Crowd behavior modeling in emergency evacuation scenarios using belief-desire-intention model
Şahin, Coşkun; Alhajj, Reda (Springer International Publishing AG, 2020)... -
CutESC: Cutting edge spatial clustering technique based on proximity graphs
Aksaç, Alper; Özyer, Tansel; Alhajj, Reda (Elsevier, 2019)In this paper, we propose a cut-edge algorithm for spatial clustering (CutESC) based on proximity graphs. The CutESC algorithm removes edges when a cut-edge value for the edge's endpoints is below a threshold. The cut-edge ... -
Data on cut-edge for spatial clustering based on proximity graphs
Aksaç, Alper; Özyer, Tansel; Alhajj, Reda (Elsevier, 2020)Cluster analysis plays a significant role regarding automating such a knowledge discovery process in spatial data mining. A good clustering algorithm supports two essential conditions, namely high intra-cluster similarity ... -
Detecting spam tweets using machine learning and effective preprocessing
Kardaş, Berk; Bayar, İsmail Erdem; Özyer, Tansel; Alhajj, Reda (Association for Computing Machinery, Inc, 2021)Nowadays, with the rapid increase in popularity of online social networks (OSNs), these platforms are realized as ideal places for spammers. Unfortunately, these spammers can easily publish malicious content, advertise ... -
Driver drowsiness detection by employing CNN and DLIB
Nawazish, Ali; Imran, Hassan; Özyer, Tansel; Alhajj, Reda (IEEE (Institute of Electrical and Electronics Engineers), 2021)Every year thousands of people lose their life due to road accidents. One of the main reasons for these accidents is driver drowsiness. In driver drowsiness, the driver slept while driving, which causes the road accident, ... -
Early warning system: from face recognition by surveillance cameras to social media analysis to detecting suspicious people
Afra, Salim; Alhajj, Reda (Elsevier B.V., 2020)Surveillance security cameras are increasingly deployed in almost every location for monitoring purposes, including watching people and their actions for security purposes. For criminology, images collected from these ... -
Effective induction of gene regulatory networks using a novel recommendation method
Özsoy, Makbule Gülçin; Polat, Faruk; Alhajj, Reda (Inderscience Enterprises Ltd., 2019)In this paper, we introduce a method based on recommendation systems to predict the structure of Gene Regulatory Networks (GRNs) making use of data from multiple sources. Our method is based on collaborative filtering ... -
Emotion and sentiment analysis from Twitter text
Sailunaz, Kashfia; Alhajj, Reda (Elsevier, 2019)Online social networks have emerged as new platform that provide an arena for people to share their views and perspectives on different issues and subjects with their friends, family, relatives, etc. We can share our ... -
Fuzzy classification methods based diagnosis of Parkinson’s disease from speech test cases
Dastjerd, Niousha Karimi; Sert, Onur Can; Özyer, Tansel; Alhajj, Reda (Bentham Science Publishers, 2019)Background: Together with the Alzheimer’s disease, Parkinson’s disease is considered as one of the two serious known neurodegenerative diseases. Physicians find it hard to predict whether a given patient has already developed ... -
Glaucoma detection using image processing techniques: A literature review
Sarhan, Abdullah; Rokne, Jon; Alhajj, Reda (Elsevier, 2019)The term glaucoma refers to a group of heterogeneous diseases that cause the degeneration of retinal ganglion cells (RGCs). The degeneration of RGCs leads to two main issues: (i) structural changes to the optic nerve head ... -
H-OCS: A hybrid optic cup segmentation of retinal images
Sarhan, Abdullah; Rokne, Jone; Alhajj, Reda (Springer Science and Business Media Deutschland GmbH, 2021)Glaucoma is the second leading cause of irreversible vision loss. Early diagnosis and treatment can, however, slow the progression of the disease. Specialists making this diagnosis rely on several tests and examinations ... -
Hot topic detection and evaluation of multi-relation effects
Zirbilek, Nadir Emre; Erakın, Mustafa; Özyer, Tansel; Alhajj, Reda (Association for Computing Machinery, Inc, 2021)With the growth of social media, Twitter has become one of the most popularly used microblogging communication platforms between people. Due to the wide preference of Twitter, popular issues in public, events like local ... -
Human action recognition approaches with video datasets-A survey
Özyer, Tansel; Ak, Duygu Selin; Alhajj, Reda (Elsevier B.V., 2021)Human Activity Recognition has recently attracted considerable attention. This has been triggered by the rapid development of advance technologies and learning methods. Human action recognition can be actively used in a ... -
Human behavior modeling for simulating evacuation of buildings during emergencies
Şahin, Coşkun; Rokne, Jon; Alhajj, Reda (Elsevier, 2019)Every year, a considerably large number of disasters occur as a result of natural events or human faults. In order to decrease the damage and casualties associated with each disaster, it is crucial to get prepared for these ... -
Integrated framework for criminal network extraction from Web
Salim, Afra; Alhajj, Reda (SAGE Publications, 2021)Extracting criminals' information and discovering their network are techniques that investigators often rely on to get extra information about criminal incidents and potential criminals. With the recent advances of the ... -
Matching applicants with positions for better allocation of employees in the job market
Elgammal, Ziad; Barmu, Abdullah; Hassan, Hamza; Elgammal, Khaled; Özyer, Tansel; Alhajj, Reda (IEEE (Institute of Electrical and Electronics Engineers), 2021)Nowadays most people who are looking for a job use the Internet, visiting websites like Linkedin or Indeed so they must face hundreds of recruitment companies and job ads. The process of applying for a job is time consuming ...
