Bytecode-based approach for Ethereum smart contract classification by Dan LIN, Kaixin LIN, Jiajing WU, Zibin ZHENG

“…In recent years, blockchain technology has been widely used and concerned in many fields, including finance, medical care and government affairs.However, due to the immutability of smart contracts and the particularity of the operating environment, various security issues occur frequently.On the one hand, the code security problems of contract developers when writing contracts, on the other hand, there are many high-risk smart contracts in Ethereum, and ordinary users are easily attracted by the high returns provided by high-risk contracts, but they have no way to know the risks of the contracts.However, the research on smart contract security mainly focuses on code security, and there is relatively little research on the identification of contract functions.If the smart contract function can be accurately classified, it will help people better understand the behavior of smart contracts, while ensuring the ecological security of smart contracts and reducing or recovering user losses.Existing smart contract classification methods often rely on the analysis of the source code of smart contracts, but contracts released on Ethereum only mandate the deployment of bytecode, and only a very small number of contracts publish their source code.Therefore, an Ethereum smart contract classification method based on bytecode was proposed.Collect the Ethereum smart contract bytecode and the corresponding category label, and then extract the opcode frequency characteristics and control flow graph characteristics.The characteristic importance is analyzed experimentally to obtain the appropriate graph vector dimension and optimal classification model, and finally the multi-classification task of smart contract in five categories of exchange, finance, gambling, game and high risk is experimentally verified, and the F1 score of the XGBoost classifier reaches 0.913 8.Experimental results show that the algorithm can better complete the classification task of Ethereum smart contracts, and can be applied to the prediction of smart contract categories in reality.…”
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Poetics of Octavio Paz’s The Violent Season by Anastasia V. Gladoshchuk

“…The autobiographical itinerary is barely outlined; its main function is to represent the archetypical “departure–and–return” scheme. …”
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Effect of Random Vibration of Rotor Supports with Nano Additives Lubricants by Marwan Abdulrazzaq Salman, Mahmud R. Ismail

“…Through white noise excitation, static ergodic random vibrations were simulated, employing mathematical modeling to derive the transfer function equation of the rotor. The investigation extended to examining the impact of copper oxide (CuO) nanoparticles in SAE10W-30 lubricant on random vibrations. …”
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Economics of Plantain Production among Farmers in Northeast Nigeria by Love Joel, Abubakar Alhaji Umaru Jongur, Elizabeth Femi Adebayo, Amurtiya Michael

“…The stochastic frontier production function maximum likelihood estimates of the parameters indicated that the production of plantain is determined by farm size, the number of suckers planted, the amount of hired labour used, and family labour. …”
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Evaluating the Development Level of Agriculture Rating Rural Settlements for Wilderness Tourism Development Using ELECTERE III Techniques: A Case Study in Khurbiabanak by Mohammad Salmani, Seiedali Badri, Mohammadgavad Ghassabi, Ghadir Ashournejad

“…In this regard, it appears to be essential to present a hierarchical classification of tourism areas and establish an effective framework for distributing tourists, delivering appropriate services, and desired function. Rural settlements of Khurbiabanak city with its unique features for the development of tourism can play an effective role in the further development of this region. …”
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The breakdown of the cytokine network subsequent to human immunodeficiency virus infection by M. Clerici, M. L. Villa, D. Trabattoni, G. M. Shearer

“…The reduction in CD4 T lymphocyte counts is the hallmark of HIV infection; nevertheless, long before the reduction in CD4 counts reaches critical levels, a series of profound and complex defects that impair the function of CD4 T lymphocytes can be detected. …”
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Unit Commitment Optimization Model Considering Impact of Multiple Operating Conditions on Unit Life Loss by LUO Yifu, HU Qinran, QIAN Tao, CHEN Tao, ZHANG Yuanshi, ZHANG Fei, WANG Qi

“…The lifespan loss cost of the unit is integrated into the operating objective function and the corresponding constraint conditions are modified. …”
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Design of Deep-Sea Acoustic Vector Sensors for Unmanned Platforms by Qindong Sun, Lianglong Da

“…The sensor innovatively integrates the sound pressure channel and the vector channel, and utilizes the conjugate cross-spectrum between them to effectively reduce the isotropic noise, enhance the detection of weak signals from ships, and make up for the shortcomings of a single sound pressure channel and a vector channel. Certified to function reliably at depths up to 1500 m, field sea trials confirm its efficacy in deep-sea deployments, capturing essential marine environmental noise data. …”
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Classification of Review Text using Hybrid Convolutional Neural Network and Gated Recurrent Unit Methods by Fiqih Fathor Rachim, Auli Damayanti, Edi Winarko

“…The CNN process includes the convolution calculation, the calculation of the Rectified Linear Unit (ReLU) activation function, and the pooling stage. The extraction results in the CNN process are continued in the GRU process. …”
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Association of Glutathione–S-Transferase (GSTP1) Genetic Polymorphism in Iraqi Patients with Diabetes Mellitus Type2 by Baghdad Science Journal

“…Polymorphisms n the genes that responsible of GSTs affect, the function of the GSTs. GSTs play an active role in protection of cell against oxidative stress mechanism. …”
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Study on the Safety Evaluation Method of Life-Saving Passage in Building Ruins under the Action of Aftershock by Xu Defeng, Dai Junwu, Chen Limei, Yang Yongqiang, Richard Agyare

“…The vertical bearing capacity test of wood shoring is performed in order to obtain the evaluation indicator of saving-life passage. The restart function of ANSYS/LS-DYNA program is used to re-edit the numerical model of the building ruins to construct the life-saving passage, then, the safety evaluation of life-saving passage of the pancake-type building ruins is investigated under the action of aftershock. …”
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Contrastive learning enhanced pseudo-labeling for unsupervised domain adaptation in person re-identification. by Xuemei Bai, Yuqing Zhang, Chenjie Zhang, Zhijun Wang

“…Subsequently, an innovative loss function is proposed to effectively reduce the interference of label noise on the training process by refining the generation process of pseudo-labels, which solves the negative impact of inaccurate pseudo-labels on model training. …”
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Research on the secondary branch sizes within crown and primary branch for planted Korean pine in Northeast China by Jiateng Liu, Huilin Gao, Yixi Zou, Qing Hu, Chenyang Zhao

“…The results indicated that the secondary branches showed an increase in length and diameter, then a decline as they reached deeper into the base of the primary branch. …”
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A numerical study of the relevance of the electrode-tissue contact area in the application of soft coagulation by Christoph Busch, Stefan J. Rupitsch, Knut Moeller

“…In this context, computational simulation is a valuable tool that can improve our understanding of such complex processes and highlight important application parameters in the direction of an improved control function to achieve safer and more reliable results. …”
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Sorption of Uranium(VI) and Thorium(IV) by Jordanian Bentonite by Fawwaz I. Khalili, Najla'a H. Salameh, Mona M. Shaybe

“…The sorption behavior of purified Jordanian bentonite towards and Th4+ metal ions in aqueous solutions was studied by batch experiment as a function of pH, contact time, temperature, and column techniques at 25.0∘C and . …”
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ACTIVITY LEVEL AND QUALITY OF LIFE AMONG PATIENTS UNDERGOING KNEE REPLACEMENT SURGERY by Huda Alfatafta, Mahmoud Alfatafta, David Onchonga, Haitham Khatatbeh, Faten Amer, Peter Than, Balint Molics, Boncz Imre, Pongrac Acs

“…However, the sedentary time after the surgery should be reduced to reach the maximum benefits of surgery.…”
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Effects of Zinc Supplementation on Glycemic Control in Patients with Type 1 Diabetes by Peyman Payami, Atefeh Hasanzadeh, Sara Saffarian

“…But the mean HbA1c levels from 8.5±.7 reached to 8.1 ± .7 after treatment with zinc supplementation (P<.001). …”
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Cystic fibrosis treatment; small molecule modulators vs genetic therapy by Salma Aly Elmallah, Raafat Soliman

“…Since the early 2010’s, the development of an actual therapy has reached great milestones including small molecule modulators and genetic therapy. …”
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Analysis of the Impact of Reservoir Development on the Availability of Water for Paddy Farming in Sanjai Village, East Sinjai District, Sinjai Regency by La Sumange, Jamal Jamal

“…It can be concluded that the construction of the reservoir has been achieved and the function of the reservoir for farmers was very useful and can also change cropping patterns as well as improve crop cultivation.…”
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Multi-camera association tracking algorithm for pedestrian target based on difference image by Shuai Ren

“…The processing speed reached 25FPS, effectively balancing computational efficiency. …”
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