2,124 research outputs found
Investigating Information Structure of Phishing Emails Based on Persuasive Communication Perspective
Current approaches of phishing filters depend on classifying messages based on textually discernable features such as IP-based URLs or domain names as those features that can be easily extracted from a given phishing message. However, in the same sense, those easily perceptible features can be easily manipulated by sophisticated phishers. Therefore, it is important that universal patterns of phishing messages should be identified for feature extraction to serve as a basis for text classification. In this paper, we demonstrate that user perception regarding phishing message can be identified in central and peripheral routes of information processing. We also present a method of formulating quantitative model that can represent persuasive information structure in phishing messages. This paper makes contribution to phishing classification research by presenting the idea of universal information structure in terms of persuasive communication theories
Implicit Kernel Attention
\textit{Attention} computes the dependency between representations, and it
encourages the model to focus on the important selective features.
Attention-based models, such as Transformers and graph attention networks (GAT)
are widely utilized for sequential data and graph-structured data. This paper
suggests a new interpretation and generalized structure of the attention in
Transformer and GAT. For the attention in Transformer and GAT, we derive that
the attention is a product of two parts: 1) the RBF kernel to measure the
similarity of two instances and 2) the exponential of norm to compute
the importance of individual instances. From this decomposition, we generalize
the attention in three ways. First, we propose implicit kernel attention with
an implicit kernel function, instead of manual kernel selection. Second, we
generalize norm as the norm. Third, we extend our attention to
structured multi-head attention. Our generalized attention shows better
performance on classification, translation, and regression tasks
Exploring a method of extracting universal features of phishing emails
Current approaches of phishing filters depend on classifying emails based on obviously
discernable features such as IP-based URLs or domain names. However, as those features
can be easily extracted from a given phishing email, in the same sense, they can be easily
manipulated by sophisticated phishers. Therefore, it is important that universal patterns of
phishing messages should be identified to serve as a basis for novel phishing
classification algorithm.
In this paper, we argue that phishing is a kind of persuasion and explore feature
extraction method based on persuasive communication perspective. Phishing message
components, including message factors, source factors, and computer related factors, are
investigated as message sender’s strategic message manipulation. On the other hand,
message receiver’s cognitive components for information processing are discussed in
terms of dual process of cognition.
Our method consists of four major procedural steps. First, persuasive message
components are identified through extensive literature review. Second, based on the
identified persuasive message components, we conduct content analysis of email
messages. Third, using factor analysis, persuasive components in phishing messages are
classified for the validation of a dual process of cognition. From the pool of persuasive
communication variables, we identify underlying dimensions to see whether central route
information processing and peripheral route information processing are distinctly
identified. Fourth, instances are classified by conducting logistic regression analysis
based on the identified variables as a result of factor analysis in addition to known
phishing factors identified by other studies. We, then, present a quantitative model that
can represent persuasive information structure in phishing messages.
This paper makes contribution to phishing classification research by presenting the idea
of universal information structure in terms of persuasive communication theories
Fabrication and Evaluation of Mechanical Properties of CF/GNP Composites
AbstractCNT/CFRP (Carbon Nanotube/ Carbon Fiber Reinforced Plastic) composites and GNP/CFRP (Graphene Nano platelet/ Carbon Fiber Reinforced Plastic) have several excellent mechanical properties including, high strength, young's modulus, thermal conductivity, corrosion resistance, electronic shielding and so on. In this study, CNT/CFRP composites were manufactured by varying the CNT weight ratio as 2wt% and 3wt%, While GNP/CFRP composites were manufactured by varying the GNP weight ratio as 0.5wt% and 1wt%. The composites ware manufactured by mechanical method (3-roll-mill). Tensile, impact and wear tests were performed according to ASTM standards D638, D256 and D3181 respectively. It was observed that, increasing the CNT weight ratio improves the mechanical properties, e.g., tensile strength, impact and wear resistance
Designing a Data Warehouse for Cyber Crimes
One of the greatest challenges facing modern society is the rising tide of cyber crimes. These crimes, since they rarely fit the model of conventional crimes, are difficult to investigate, hard to analyze, and difficult to prosecute. Collecting data in a unified framework is a mandatory step that will assist the investigator in sorting through the mountains of data. In this paper, we explore designing a dimensional model for a data warehouse that can be used in analyzing cyber crime data. We also present some interesting queries and the types of cyber crime analyses that can be performed based on the data warehouse. We discuss several ways of utilizing the data warehouse using OLAP and data mining technologies. We finally discuss legal issues and data population issues for the data warehouse
Designing a Data Warehouse for Cyber Crimes
One of the greatest challenges facing modern society is the rising tide of cyber crimes. These crimes, since they rarely fit the model of conventional crimes, are difficult to investigate, hard to analyze, and difficult to prosecute. Collecting data in a unified framework is a mandatory step that will assist the investigator in sorting through the mountains of data. In this paper, we explore designing a dimensional model for a data warehouse that can be used in analyzing cyber crime data. We also present some interesting queries and the types of cyber crime analyses that can be performed based on the data warehouse. We discuss several ways of utilizing the data warehouse using OLAP and data mining technologies. We finally discuss legal issues and data population issues for the data warehouse
Research on a Denial of Service (DoS) Detection System Based on Global Interdependent Behaviors in a Sensor Network Environment
This research suggests a Denial of Service (DoS) detection method based on the collection of interdependent behavior data in a sensor network environment. In order to collect the interdependent behavior data, we use a base station to analyze traffic and behaviors among nodes and introduce methods of detecting changes in the environment with precursor symptoms. The study presents a DoS Detection System based on Global Interdependent Behaviors and shows the result of detecting a sensor carrying out DoS attacks through the test-bed
Experimental Study on Electromagnetic Forming of High Strength Steel Sheets with Different Dimensions of Aluminum Driver Plate
Recently, the potential of the electromagnetic forming process has been introduced to
form the shallow longitudinal reinforcement ribs in the lateral walls of roll formed parts,
made of high strength steel sheets of 340MPa tensile stress grade [1]. However, it seems
that the application may not be easy for high strength steel sheet because of its high
tensile strength and low electric conductivity. In order to overcome this difficulty, aluminum
driver plate could be considered to enhance the formability of high strength steel sheets in
the electromagnetic forming process. In this paper, in order to investigate the effect of
aluminum driver plate on forming height of high strength steel sheet in electromagnetic
forming process, DP780 workpiece sheets were formed into a hemi elliptical protrusion
shape with Al1050 driver plate of various thicknesses and sizes. Experiments were
performed with a flat spiral coil actuator connected to an electromagnetic forming system.
The results, the aluminum driver plate helps to increase the forming height of high
strength steel sheets. In addition, the forming height of high strength steel sheet increases
as the thickness and size of a driver plate increases
Gypsum-Dependent Effect of NaCl on Strength Enhancement of CaO-Activated Slag Binders
This study explores the combined effect of NaCl and gypsum on the strength of the CaO-activated ground-granulated blast furnace slag (GGBFS) binder system. In the CaO-activated GGBFS system, the incorporation of NaCl without gypsum did not improve the strength of the system. However, with the presence of gypsum, the use of NaCl yielded significantly greater strength than the use of either gypsum or NaCl alone. The presence of NaCl largely increases the solubility of gypsum in a solution, leading to a higher concentration of sulfate ions, which is essential for generating more and faster formations of ettringite in a fresh mixture of paste. The significant strength enhancement of gypsum was likely due to the accelerated and increased formation of ettringite, accompanied by more efficient filling of pores in the system
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