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作者： Dawn, Indrajit Ganguly, Gopi Bondhu Chakraborty, Koyel Supreme Knowledge Foundation Group of Institutions Department of Computer Science and Engineering West Bengal Mankundu Hooghly India

Recently a huge rise regarding the amount of data in the form of texts is observed and it is equally important to understand the emotion behind these texts. The sentiment analysis of a conversation is very important to judge the mind setup of a person in this era. Sentiment analysis is a technique to explain a view regarding a discussion about a topic either related to verbal or drafted form. It is a very difficult task to analyse the sentiment of a conversation. Deep Learning is the latest process to help analyse near-perfect sentiments. It feeds a lot of data to the algorithm and in the process adjusts itself to constantly progress in the prediction process. In this paper, an attempt has been made to judge the sentiment of a conversation using deep learning techniques. The aim of this work is to establish a model for selecting sentiments from sentences. After the "sentiment" word has been identified, we plan to devise a method that will select a few prior words so that the aspect can also be determined directly from the sentence itself. © 2020, Springer Nature Switzerland AG.

关键词： Sentiment analysis

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Secure and efficient sensitive info-hiding for data sharing via daces method in cloud 3rd

Secure and efficient sensitive info-hiding for data sharing ...

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3rd International Conference on Big-Data and Cloud Computing, ICBDCC 2019

作者： Raj, R. Joshua Samuel Praise, J. Jeya Prakash, M. Viju Silva, A. Sam Department of Information Science and Engineering CMR Institute of Technology VTU BengaluruKarnataka India Department of Computer Science and Engineering Rajas Engineering College VadakkangulamTamil Nadu India Department of Computer Science College of Science Knowledge University Kurdistan Region Erbil Iraq

ISBN: (纸本)9789811552847

Cloud computing has been developed very quickly within the past few years. With public cloud storage services, users can store remotely to servers in cloud and also recognize the sharing of data with other users. The public cloud servers cannot be completely trusted by users and cannot manage records kept on cloud like local storage devices. However, within cloud storage systems, stored data would possibly contain sensitive info which should not be visible to other users while sharing record in cloud. This becomes a challenge to realize secure and efficient information sharing within cloud. However, existing cryptographic mechanisms do not protect shared sensitive data which are typically protected using a low-entropy password. To tackle this, Division and Auditing of information in Cloud for Efficiency and Security (DACES) is recommended in order to treat the above issues for public cloud storage. In DACES: (i) Erasure code is applied to divide a single record into blocks and distributed them to different cloud servers. (ii) Privacy of data owner and data sharing with sensitive info-hiding is achieved by secure data integrity auditing scheme. (iii) Identity-based access management is implemented to recognize that only authorized users will access the sensitive information. Furthermore, the proposed method is secure and efficient for information sharing in cloud environment. At last, its application is in electronic health (E-health) record. © Springer Nature Singapore Pte Ltd 2021.

关键词： Cloud storage

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Biomedical relation classification by single and multiple source domain adaptation 10

Biomedical relation classification by single and multiple so...

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10th International Workshop on Health Text Mining and Information Analysis, LOUHI@EMNLP 2019

作者： Chakraborty, Sinchani Sarkar, Sudeshna Goyal, Pawan Gattu, Mahanandeeshwar Department of Computer Science and Engineering IIT Kharagpur India Excelra Knowledge Solutions Pvt Ltd Hyderabad India

ISBN: (纸本)9781950737772

Relation classification is crucial for inferring semantic relatedness between entities in a piece of text. These systems can be trained given labelled data. However, relation classification is very domain-specific and it takes a lot of effort to label data for a new domain. In this paper, we explore domain adaptation techniques for this task. While past works have focused on single source domain adaptation for bio-medical relation classification, we classify relations in an unlabeled target domain by transferring useful knowledge from one or more related source domains. Our experiments with the model have shown to improve state-of-the-art F1 score on 3 benchmark biomedical corpora for single domain and on 2 out of 3 for multi-domain scenarios. When used with contextualized embeddings, there is further boost in performance outperforming neural-network based domain adaptation baselines for both the cases. © 2019 Association for Computational Linguistics

关键词： Text processing

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Dynamic Time Division Multiple Access Algorithm for Industrial Wireless Hierarchical Sensor Networks

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China Communications 2013年第5期10卷 137-145页

作者：杨彦红张晓彤罗琼李文超 School of Computer and Communication Engineering University of Science and Technology Beijing Department of Computer Science and Engineering Lehigh University Beijing Key Laboratory of Knowledge Engineering for Materials Science

Industrial wireless sensor networks adopt a hierarchical structure with large numbers of sensors and routers. Time Division Multiple Access (TDMA) is regarded as an efficient method to reduce the probability of confliction. In the intra-cluster part, the random color selection method is effective in reducing the retry times in an application. In the inter-cluster part, a quick assign algorithm and a dynamic maximum link algorithm are proposed to meet the quick networking or minimum frame size requirements. In the simulation, the dynamic maximum link algorithm produces higher reductions in the frame length than the quick assign algorithm. When the number of routers is 140, the total number of time slots is reduced by 25%. However, the first algorithm needs more control messages, and the average difference in the number of control messages is 3 410. Consequently, the dynamic maximum link algorithm is utilized for adjusting the link schedule to the minimum delay with a relatively high throughput rate, and the quick assign algorithm is utilized for speeding up the networking process.

关键词： TDMA wireless sensor network industrial wireless sensor network

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A cognitive hierarchy model applied to the lemonade game

A cognitive hierarchy model applied to the lemonade game

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作者： Wunder, Michael Kaisers, Michael Littman, Michael Yaros, John Robert Department of Computer Science Rutgers University United States Department of Knowledge Engineering Maastricht University Netherlands

ISBN: (纸本)9781577354697

One of the challenges of multiagent decision making is that the behavior needed to maximize utility can depend on what other agents choose to do: sometimes there is no "right" answer in the absence of knowledge of how opponents will act. The Nash equilibrium is a sensible choice of behavior because it represents a mutual best response. But, even when there is a unique equilibrium, other players are under no obligation to take part in it. This observation has been forcefully illustrated in the behavioral economics community where repeated experiments have shown individuals playing Nash equilibria and performing badly as a result. In this paper, we show how to apply a tool from behavioral economics called the Cognitive Hierarchy (CH) to the design of agents in general sum games. We attack the recently introduced "Lemonade Game" and show how the results of an open competition are well explained by CH. We believe this game, and perhaps many other similar games, boils down to predicting how deeply other agents in the game will be reasoning. An agent that does not reason enough risks being exploited by its opponents, while an agent that reasons too much may not be able to interact productively with its opponents. We demonstrate these ideas by presenting empirical results using agents from the competition and idealizations arising from a CH analysis. Copyright © 2010, Association for the Advancement of Artificial Intelligence. All rights reserved.

关键词： Game theory

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A flexible runtime system for image processing in a distributed computational environment for an unmanned aerial vehicle

A flexible runtime system for image processing in a distribu...

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作者： Nordberg, Klas Doherty, Patrick Forssén, Per-Erik Wiklund, Johan Andersson, Per Computer Vision Laboratory Department of Electrical Engineering Linköping University Sweden Knowledge Processing Laboratory Department of Computer Science Linköping University Sweden Department of Computer Science Lund University Sweden

A runtime system for implementation of image processing operations is presented. It is designed for working in a flexible and distributed environment related to the software architecture of a newly developed UAV system. The software architecture can be characterized at a coarse scale as a layered system, with a deliberative layer at the top, a reactive layer in the middle, and a processing layer at the bottom. At a finer scale each of the three levels is decomposed into sets of modules which communicate using CORBA, allowing system development and deployment on the UAV to be made in a highly flexible way. Image processing takes place in a dedicated module located in the process layer, and is the main focus of the paper. This module has been designed as a runtime system for data flow graphs, allowing various processing operations to be created online and on demand by the higher levels of the system. The runtime system is implemented in Java, which allows development and deployment to be made on a wide range of hardware/software configurations. Optimizations for particular hardware platforms have been made using Java's native interface. © World Scientific Publishing Company.

关键词： Image processing

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Heterojunction p-n type α-Fe₂O₃/CeO₂ composite for photocatalytic dye degradation

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Journal of the Indian Chemical Society 2025年第7期102卷

作者： Shinde, Trupti B. Mharsale, Nilesh N. Raut, Pradnya S. Patil, Ganesh E. Kapadnis, Kailas H. Department of Chemistry MGVs Loknete Vyankatrao Hiray Arts Science and Commerce College Panchavati Nashik 422003 India Department of Chemistry K. K. Wagh Arts Commerce Science and Computer Science College Nashik 422 003 India Department of Physics MVPs Arts Commerce and Science College Tryambakeshwar 422212 India Department of Engineering Sciences METS Institute of Engineering Bhujbal Knowledge City Adgaon Nashik 422003 India Department of Physics SNJBs KKHA Arts SMGL Commerce and SPHJ Science College Chandwad 423101 India

Composite p-n type heterojunction photocatalysis offers an environmentally friendly and energy-efficient solution for wastewater treatment, leveraging visible light to degrade pollutants effectively. Herein, firstly CeO₂ and Fe₂O₃ were synthesized using chemical reaction methods, followed by the preparation of a p-n type α-Fe₂O₃/CeO₂ composite catalyst via ball milling and calcination at 500 °C. The synthesized composite was characterized using XRD, FTIR, SEM, Raman spectroscopy, PL and UV–visible spectroscopy to investigate their structural and optical properties. The successful integration of CeO₂ and Fe₂O₃ into the composite was confirmed by the combined features in XRD and Raman analyses, as well as characteristic FTIR peaks at 1143 cm⁻¹ and 1084 cm⁻¹, corresponding to Ce–O–Ce and Fe–O–Fe bridging vibrations. SEM analysis revealed roughly spherical nanoparticles with an average size of 357 nm. UV–visible spectroscopy measurements indicated a reduced band gap of 1.15 eV for the composite, enhancing its visible light absorption. The formation of a stable p-n heterojunction between CeO₂ and Fe₂O₃ improved charge separation and photocatalytic efficiency. The photocatalytic activity of the α-Fe₂O₃/CeO₂ composite was evaluated for the degradation of methylene green dye under visible light irradiation, achieving a maximum degradation efficiency of 95.45 % at an optimal pH of 6 and a catalyst mass of 0.15 g. The relatively low PL intensity observed at 636 nm in the α-Fe₂O₃/CeO₂ nanocomposite suggests that the formation of the heterojunction between α-Fe₂O₃ and CeO₂ facilitates efficient charge carrier separation. This study demonstrates that the α-Fe₂O₃/CeO₂ composite is an effective and s

关键词： Methylene green dye p-n type composite Photocatalyst α-Fe2O3/CeO2

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A Survey on Network Packet Inspection and ARP Poisoning Using Wireshark and Ettercap

A Survey on Network Packet Inspection and ARP Poisoning Usin...

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2021 International Conference on Artificial Intelligence and Smart Systems, ICAIS 2021

作者： Majidha Fathima, K.M. Santhiyakumari, N. Sri Krishna College of Engineering and Technology Coimbatore Department of Computer Science and Engineering India Knowledge Institute of Technology Department of Electronics and Communication Engineering Salem India

ISBN: (纸本)9781728195377

A network consists of a collection of nodes such as hubs, bridges, switches, routers, firewalls, brouters, packet shapers. The hubs help in connecting two devices. The bridges and switches function in layer 2 of ISO-OSI (Open Systems Interconnection). Routers perform the role of delivering packets from source to destination. Firewalls protect the networks by filtering the traffic between sender and receiver. The packet shapers help in regulating the traffic by cutting out spikes in a connectivity. The network is being utilized as 24∗7 days support. The network is being exposed to various kinds of attacks such as ARP (Address Resolution Protocol), DDOS (Distributed Denial of Service). Hence the performance monitoring plays a vital role in preserving a network. The tools such as wireshark and ettercap are being analyzed in this paper. The network traffic is being interpreted by wireshark. Ettercap analyzes ARP poisoning attack. The preventive actions are taken based on the output of the monitoring tools. © 2021 IEEE.

关键词： Denial-of-service attack

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Intersection of software methodologies and itil V3

Intersection of software methodologies and itil V3

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IASTED International Conference on Software engineering, SE 2008

作者： Hacker, Wolfgang University of Vienna Department of Computer Science Department of Knowledge and Business Engineering 1210 Vienna Bruenner Straße 72 Austria

ISBN: (纸本)9780889867154

The Information Technology Infrastructure Library V3 (ITIL V3) was published in June 2007. ITIL V3 is a lifecycle model about integrated IT-Service-Management (ITSM) processes, which documents best practice of IT services. It covers the process areas Service Strategy, Service Design, Service Transition, Service Operation and Continual Service Improvement. The extensive process descriptions within the lifecycle model intersect with process descriptions of the software development processes. IT organisations with software development units, as well as data processing centres, face the problem of adopting at least two different process models. This paper demonstrates the overlapping of software methodologies and ITIL V3 processes and makes a recommendation for the coexistence of both philosophies.

关键词： Data handling

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A survey on evolution of cloud technology and virtualization 3

A survey on evolution of cloud technology and virtualization

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3rd International Conference on Intelligent Communication Technologies and Virtual Mobile Networks, ICICV 2021

作者： Majidha Fathima, K.M. Santhiyakumari, N. Sri Krishna College of Engineering and Technology Department of Computer Science and Engineering Coimbatore India Knowledge Institute of Technology Department of Electronics and Communication Engineering Salem India

ISBN: (纸本)9780738111834

The term cloud is termed as a collection of resources both physical and virtual. The customers across the globe are accessing the services of the cloud. The key elements of the data center formed by the cloud are compute, network, storage, application and DBMS (Database Management System). The services provided by a real machine are imitated by the virtual machines. The services offered are for resources like CPU (Central Processing Unit), NIC (Network Interface Card), memory and hard disk. NIC is used to connect the system to the network. The virtual machines are created by software's like hypervisor. The hypervisor serves as the Virtual Machine Monitor (VMM). It forms as an intermediate between the physical machine and virtual machine. VMware Workstation Pro, Oracle Virtual Box are the examples of hypervisor. The operating system (OS) of the real machine is called as 'host OS'. 'Guest OS' is the operating system of the virtual machine formed. The number of virtual machines created depends on the underlying hardware of the physical machine with sophisticated hard disks like SSD (Solid State Drive). A virtualized data center with resources is simulated using CloudSim and the results are interpreted. © 2021 IEEE.

关键词： Program processors

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