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Öğe Feature Selection Approach for Phishing Detection(Institute of Electrical and Electronics Engineers Inc., 2022) Kucukkara, A.S.; Menemencioglu, O.This study offers a novel approach to the feature selection. We propose a method to reduce the number of features while maintaining high detection accuracy by combining two popular feature importance methods and the GRiS mean method. The proposed model also improves the training time, test time, and usage of memory. Among the Ill features of the latest published phishing website detection dataset, the efficient features were selected with this approach. Using the Random Forest algorithm and the proposed feature selection approach with only nineteen features, the accuracy of phishing detection can reach up to 97.12%. © 2022 IEEE.Öğe Geographical assesment of results from preventing the parameter tampering in a web application(International Society for Photogrammetry and Remote Sensing, 2017) Menemencioglu, O.; Orak, I.M.The improving usage of internet and attained intensity of usage rate attracts the malicious in around the world. Many preventing systems are offered by researchers with different infrastructures. Very effective preventing system was proposed most recently by the researchers. The previously offered mechanism has prevented the multi-type vulnerabilities after preventing system was put into use. The attack attempts have been recorded. The researchers analysed the results geographically, discussed the obtained results and made some inference of the results. Our assessments show that the geographical findings can be used to retrieve some implication and build an infrastructure which prevents the vulnerabilities by location. © Authors 2017.Öğe A review on semantic text and multimedia retrieval and recent trends(IGI Global, 2015) Menemencioglu, O.; Orak, I.M.Semantic web works on producing machine readable data and aims to deal with large amount of data. The most important tool to access the data which exist in web is the search engine. Traditional search engines are insufficient in the face of the amount of data that consists in the existing web pages. Semantic search engines are extensions to traditional engines and overcome the difficulties faced by them. This paper summarizes semantic web, concept of traditional and semantic search engines and infrastructure. Also semantic search approaches are detailed. A summary of the literature is provided by touching on the trends. In this respect, type of applications and the areas worked for are considered. Based on the data for two different years, trend on these points are analyzed and impacts of changes are discussed. It shows that evaluation on the semantic web continues and new applications and areas are also emerging. Multimedia retrieval is a newly scope of semantic. Hence, multimedia retrieval approaches are discussed. Text and multimedia retrieval is analyzed within semantic search. © 2016, IGI Global. All rights reserved.Öğe A review on semantic text and multimedia retrieval and recent trends(IGI Global, 2015) Menemencioglu, O.; Orak, I.M.Semantic web works on producing machine readable data and aims to deal with large amount of data. The most important tool to access the data which exist in web is the search engine. Traditional search engines are insufficient in the face of the amount of data that consists in the existing web pages. Semantic search engines are extensions to traditional engines and overcome the difficulties faced by them. This paper summarizes semantic web, concept of traditional and semantic search engines and infrastructure. Also semantic search approaches are detailed. A summary of the literature is provided by touching on the trends. In this respect, type of applications and the areas worked for are considered. Based on the data for two different years, trend on these points are analyzed and impacts of changes are discussed. It shows that evaluation on the semantic web continues and new applications and areas are also emerging. Multimedia retrieval is a newly scope of semantic. Hence, multimedia retrieval approaches are discussed. Text and multimedia retrieval is analyzed within semantic search. © 2016, IGI Global.Öğe Semantic querying on multimedia data(Institute of Electrical and Electronics Engineers Inc., 2016) Menemencioglu, O.; Orak, I.M.Effective information retrieval is not provided with manual multimedia processing methods against huge amount of multimedia data which is produced in nowadays. Even automatic annotation generation methods are hard to address, they only operate on image processing step. Ultimately, it does not mean having a system that retrieve, relate and interpret the retrieved data. This study is done for filling the gap that is mentioned. In the study, inquiry is done by use of semantic web infrastructure on the produced, processed data of multimedia which is a source of ontologies. It is aimed to build a framework to introduce meaning on result data with semantic search. In this manner, it will be possible to access the knowledge effectively on multimedia datasets. © 2016 IEEE.Öğe A simple solution to prevent parameter tampering in web applications(IGI Global, 2017) Menemencioglu, O.; Orak, I.M.Business over the internet such as banking and several online services are growing rapidly. Similarly, social media web portals are also getting more and more involved in our daily life. Since these applications are popular and consist of personal and valuable data, they attract malicious attacks to their vulnerable points. The weakness can also be faced in all businesses and institutions that do not care the necessary security steps. The web parameter tampering is one of the major attacks which is based on the modification of parameters. In order to prevent the parameter tampering, a novel and simple mechanism is implemented by verifying the validity. The mechanism is based on a deterministic finite state machine. Beside this static method, the system also has run time validation which leads for the usage of hybrid analysis approach. As an evaluation, performance assessment of the algorithm is done for real time attacks targeting a web site. © 2018, IGI Global.
