hub at SemEval-2021 Task 1: Fusion of Sentence and Word Frequency to Predict Lexical Complexity

In this paper, we propose a method of fusing sentence information and word frequency information for the SemEval 2021 Task 1-Lexical Complexity Prediction (LCP) shared task. In our system, the sentence information comes from the RoBERTa model, and the word frequency information comes from the Tf-Idf algorithm. Use Inception block as a shared layer to learn sentence and word frequency information We described the implementation of our best system and discussed our methods and experiments in the task. The shared task is divided into two sub-tasks. The goal of the two sub-tasks is to predict the complexity of a predetermined word. The shared task is divided into two subtasks. The goal of the two subtasks is to predict the complexity of a predetermined word. The evaluation index of the task is the Pearson correlation coefficient. Our best performance system has Pearson correlation coefficients of 0.7434 and 0.8000 in the single-token subtask test set and the multi-token subtask test set, respectively.

hub at SemEval-2021 Task 7: Fusion of ALBERT and Word Frequency Information Detecting and Rating Humor and Offense

This paper introduces the system description of the hub team, which explains the related work and experimental results of our team's participation in SemEval 2021 Task 7: HaHackathon: Detecting and Rating Humor and Offense. We successfully submitted the test set prediction results of the two subtasks in the task. The goal of the task is to perform humor detection, grade evaluation, and offensive evaluation on each English text data in the data set. Tasks can be divided into two types of subtasks. One is a text classification task, and the other is a text regression task. What we need to do is to use our method to detect the humor and offensive information of the sentence as accurately as possible. The methods used in the results submitted by our team are mainly composed of ALBERT, CNN, and Tf-Idf algorithms. The result evaluation indicators submitted by the classification task are F1 score and Accuracy. The result evaluation index of the regression task submission is the RMSE. The final scores of the prediction results of the two subtask test sets submitted by our team are task1a 0.921 (F1), task1a 0.9364 (Accuracy), task1b 0.6288 (RMSE), task1c 0.5333 (F1), task1c 0.0.5591 (Accuracy), and task2 0.5027 (RMSE) respectively.

Building Scheme Of Digital Image Authentication Using Steganography & Perceptual Hashing Techniques

Recently، digital image authentication technologies have gained much attention because of their importance in many multimedia applications. In general digital images are transmitted over unsaved media such as the internet and many types of computer networks. Applications may require a large amount of safety such as military applications and medical applications. Therefore the digital images must be protected against any modifications، which may lead to influence the decisions that associated with them. In this paper، a general scheme based on Steganography & Perceptual Image Hashing techniques was proposed to enhance the security of digital image transmission. In the final test stage, we checked the accuracy of the proposed scheme against potential modifications was studied, by applying different levels of compression and changing the contrast & brightness level of the image. For analyzing the final results, we computed the matching ratio between the original hash vector and the embedded hash vector. As a result، we achieved a near perfect match ratio even after applying the image compression level or changing its brightness level (approximately 99.9%), while the match ratio decreased significantly with the increase of the contrast level of the image (approximately 94%).

Modeling of sloshing in moving cylindrical containers by using ANSYS program

This research is concerned in modeling the problem of sloshing in moving cylindrical containers in ANSYS program where we model the problem on a partially filled cylinder then we find the resonant frequencies in addition to study the interaction between the cylinder and the fluid.

Numerical study of the use of Non-destructive Impact Test methods for the exam of integrity of concrete piles

This research includes a numerical study using Finite Element Method aims to evaluate the ability and accuracy of using Non-destructive Impact Response Method in the assessment of length and cross-sections of intact concrete pile (not deformed) in both time and frequency domains. Therefore, an appropriate numerical model depends on the modeling of both impact force (impulsive load) and distributing medium (pile + soil) and insert them in computing software ABAQUS was carried out. The numerical model was verified corresponding to field measures obtained from literature review and the results showed good agreement between measures and numerical results. Furthermore, the model was applied on a typical example in order to study vibration distribution in the pile due to impulsive load applied on pile top. Mechanical response curve of intact pile was obtained. Then, both of length and cross-section area of the pile were determined. Finally, parametrical study of most important factors (stiffness of soil surrounding the pile and length of pile embedded in the soil) effect on vibration distribution resulted from impulsive load applied on pile top. The parametrical study was carried out in two domains; first one was time domain depending on the direct analysis of particle displacement and velocity and the second was frequency domain depending on analysis of pile mechanical response curve. The results of this research enables to use the proposed numerical model to numerically obtain the time history of particle displacement and velocity in addition to the curve of mechanical response computed in the pile top and forms reference diagrams which is used later to compare with similar diagrams resulted from field test of executed piles. As a result, pile integrity test and detecting of defects in the piles if any. In addition, the limits of the use of both analysis methods adapted in research and choose the best between them according to the case study.

Comparison study of total displacements of multi-story buildings subjected to earthquake using synthetic timehistory records compatible with Syrian code

Response spectrum analysis and equivalent static analysis is widely used by engineers and engineering offices to estimate buildings and structures response to earthquakes. But performance based procedures to evaluate buildings and new designs according to Syrian code and other international codes require response analysis using smallest of earthquake records, where we can estimate engineeringdemandparameters(EDPs)— floordisplacements,storydrifts,memberforces,memberdeformations,etc.— ofbuildingsandspecialstructuressubjectedtogroundmotions, consecutively to verify required performance criteria. Theserecordsshouldbeproperlyselectedandscaledincompliancewithsitespecifichazardconditionstoestimate (EDPs) and ensure that they verify ―expected‖ median demands. In this study, background, selection procedures compatible with Syrian code, and review of most scaling methods were introduced. The structural response was studied by comparing displacements due to response spectrum analysis, scaled records using PGA, and synthetic time histories records in time domain and frequency domain (generated according to Syrian response spectrum). Tow three-dimensional models of real buildings in Lattakia city were used as study cases, the results obtained by 20 analysis processes. The results show that analysis using synthetic records compatible with Syrian code give noticeably less displacements estimates comparing with response spectrum analysis and analysis using records scaled by PGA scaling.

Evaluate the educational process efficiency in the Syian Universities by using the success of the special rates An example of the Faculty of Economics at the University of Tishreen

The educational process at universities affected many of the physical ,human and administrative factors ,and to determine the extent of the impact of each of these factors in the educational process to reflect the efficiency, It is considered a very difficult process .In order to achieve output of higher education , we have to stand at the level of the educational process efficiency and performance in universities, because it is affected by many of the physical , human and administrative factors . which invited us to devise a quantitative method for evaluating and measuring the educational process efficiency and performance in school undergraduate courses. By arranging different success rates, as well as through special test success rates in the decision, and the results that were obtained: 1-Devise mathematical relationship to measure the educational process efficiency and performance through the installation of the proportion of applicants and the proportion of the general success and the success rate for in decision. 2-Devise mathematical relationship to measure the educational process efficiency and performance in courses through the test of the success rate for in decision. 3-The crisis experienced by the country has reversed dramatically and negatively educational process efficiency and performance in courses in different years, and according to the scientific departments.

Isolated Word Recognition

الغاية من هذا البحث بناء نظام لتصنيف نطق الأرقام الانكليزية وذلك بالاعتماد على نماذج ماركوف المخفية في التصنيف وذلك بالاعتماد على طيف الإشارة في استخراج سمات الإشارات

Assess the quality of the examination results in courses with used Recurring distribution analysis for her An example of the Faculty of Economics at the University of Tishreen

The quality of the teaching process at the university are difficult to measure and determine the amount of quality, because they are influenced by many of the physical, human and administrative factors, which invited us to devise a quantitative method for evaluating and measuring the quality of the results the examination in the courses the university through distribution analysis Recurring of the results of each course separately and each year, either College was a theory or application, and then make a matching test for distribution with the actual distribution Recurring Recurring theoretical standard beta distribution using Chi-square test, and the results that have been obtained: 1. devise mathematical relationship to measure the quality of the examination results in university courses. 2. the expense of the quality of the examination results of some courses in some four years in the Faculty of Economics at the University of Tishreen. 3. The quality of the examination results differ from the success rate.

Generation of Synthetic Time Histories Functions Compatible with Syrian Response Spectra in Frequency Domain and Time Domain Applicable to Dynamic Analysis

In this study, basic methodologies and procedures for generation synthetic time histories in time domain and frequency domain are summarized. These synthetic time histories are matching Syrian spectrum and compatible with wide range of buildings models and soil types according to the seismic parameters of Lattakia city. This paper will discuss the Selection and scaling criteria of three real time history records available in strong ground motion databases to satisfy the Syrian spectrum, and the suitability as input to time history analysis of civil engineering structures.