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SemRec: A semantic enhancement framework for tag based recommendation 25

SemRec: A semantic enhancement framework for tag based recom...

25th AAAI Conference on Artificial Intelligence and the 23rd Innovative Applications of Artificial Intelligence Conference, AAAI-11 / IAAI-11

作者： Xu, Guandong Gu, Yanhui Dolog, Peter Zhang, Yanchun Kitsuregawa, Masaru Center for Applied Informatics Victoria University Australia Department of Information and Communication Engineering University of Tokyo Japan Department of Computer Science Aalborg University Denmark Institute of Industrial Science University of Tokyo Japan

ISBN: (纸本)9781577355090

Collaborative tagging services provided by various social web sites become popular means to mark web resources for different purposes such as categorization, expression of a preference and so on. However, the tags are of syntactic nature, in a free style and do not reflect semantics, resulting in the problems of redundancy, ambiguity and less semantics. Current tag-based recommender systems mainly take the explicit structural information among users, resources and tags into consideration, while neglecting the important implicit semantic relationships hidden in tagging data. In this study, we propose a Semantic Enhancement Recommendation strategy (SemRec), based on both structural information and semantic information through a unified fusion model. Extensive experiments conducted on two real datasets demonstrate the effectiveness of our approaches. Copyright © 2011, Association for the Advancement of Artificial Intelligence. All rights reserved.

关键词： Semantics

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Data Communication and Networks 1

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丛书名： Advances in Intelligent Systems and Computing

1000年

作者： Lakhmi C. Jain George A. Tsihrintzis Valentina E. Balas Dilip Kumar Sharma

ISBN: (数字)9789811501326

ISBN: (纸本)9789811501319

This book gathers selected high-quality papers presented at the International Conference on Computing, Power and Communication Technologies 2019 (GUCON 2019), organized by Galgotias University, India, in September 2019. The content is divided into three sections – data mining and big data analysis, communication technologies, and cloud computing and computer networks. In-depth discussions of various issues within these broad areas provide an intriguing and insightful reference guide for researchers, engineers and students alike.

关键词： Communications engineering, Networks Mobile and Network Security Data Mining and Knowledge Discovery Big Data Data engineering

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A tool for extracting model clones from a conceptual schema

A tool for extracting model clones from a conceptual schema

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IASTED International Conference on Software engineering, as part of the 24th IASTED International Multi-Conference on applied informatics

作者： Faliagka, Evanthia Rigou, Maria Sirmakessis, Spiros Tzimas, Giannis Department of Computer Engineering and Informatics University of Patras Rio Campus 26504 Greece Research Academic Computer Technology Institute Patras University N. Kazantzaki str. Rio Campus 26500 Greece Department of Applied Informatics in Administration and Economy Technological Institution of Messolongi Nea Ktiria 30200 Greece

ISBN: (纸本)0889865744

In this paper the authors present an overview of techniques and tools that enable the effective evaluation and refactoring of a Web application's conceptual schema. Moreover, based on the introduction of the notion of model clones (in a previous work), as partial conceptual schemas that are repeated within a broader application model and the notion of model smells, as certain blocks in the Web applications model that imply the possibility of refactoring, this paper illustrates a methodology and a tool for detecting and evaluating the existence of potential model clones, in order to identify problems in an application's conceptual schema by means of efficiency, consistency, usability and overall quality. The methodology can be deployed either in the process of designing an application or in the process of reengineering it. Evaluation is performed according to a number of inspection steps. At first level the compositions used in the hypertext design are evaluated, followed by a second level evaluation concerning data manipulation and presentation to the user.

关键词： World Wide Web

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Electricity Consumption by ICT: Facts, trends, and measurements

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Ubiquity 2023年第8期2023卷 1-15页

作者： Gelenbe, Erol Institute of Theoretical and Applied Informatics Polish Academy of Sciences Gliwice44100 Poland Université Côte d'Azur CNRS I3S Nice06000 France Dept. of Computer Engineering Yaşar University Bornova Izmir Turkey

This paper considers key issues surrounding energy consumption by information and communication technologies (ICT), which has been steadily growing and is now attaining approximately 10% of the worldwide electricity consumption with a significant impact on greenhouse gas emissions. The perimeter of ICT systems is discussed, and the role of the subsystems that compose ICT is considered. Data from recent years is used to understand how each of these sub-systems contribute to ICT's energy consumption. The quantitatively demonstrated positive correlation between the penetration of ICT in the world's different economies and the same economies' contributions to undesirable greenhouse gas emissions is also discussed. The paper also examines how emerging technologies such as 5G, AI, edge computing, and cryptocurrencies are contributing to the worldwide increase in electricity consumption by ICT, despite the increases in ICT efficiency, in terms of energy consumed per bit processed, stored, or transmitted. The measurement of specific ICT systems' electricity consumption is also addressed, and the manner in which this consumption can be minimized in a specific edge computing context is discussed.

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CONCEPT OF DELIVERY SYSTEM IN THE SMART CITY ENVIRONMENT

arXiv

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arXiv 2023年

作者： Špitálová, Zuzana Leontiev, Oliver Harmaňoš, Patrik Institute of Computer Engineering and Applied Informatics Faculty of Informatics and Information Technology Slovak University of Technology Bratislava Slovakia

Regarding to the smart city infrastructures, there is a demand for big data processing and its further usage. This data can be gained by various means. There are many IoT devices in the city, which can communicate and share the information about the environment which they are situated in. Moreover every personal mobile device can also participate in this process and help to gain data via various applications. Every app provides the useful data, enabling the location and data sharing. This data can be further processed and used for improving the city infrastructure, transport or other services. We designed the system for shared delivery process, which can help to achieve the described situation. It consists of frontend and backend part. The frontend part, multiplatform mobile app, represents the graphical interface and the backend part represents the database for the gained data. © 2023, CC0.

关键词： Smart city

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TEL in teaching and learning programming - International experience

TEL in teaching and learning programming - International exp...

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14th International Conference on computer Systems and Technologies, CompSysTech 2013

作者： Ivanović, Mirjana Bogdanova, Ana Madevska Milašinović, Boris Savić, Miloš Bothe, Klaus Department of Mathematics and Informatics Faculty of Sciences University of Novi Sad Serbia University Ss. Cyril and Methodius Faculty of Computer Science and Engineering Skopje Macedonia University of Zagreb Faculty of Electrical Engineering and Computing Department of Applied Computing Zagreb Croatia Institute of Informatics Humboldt University Berlin Germany

ISBN: (纸本)9781450320214

Some aspects regarding delivering of different programming courses in three institutions from three countries (Serbia, FYR Macedonia and Croatia) are observed in the paper. Courses' profiles and the application of technology enhanced learning are described and compared. An analysis of the approaches and usage of a set of suitable software tools to enhance everyday teaching practice was conducted. At the end of the last school year, students filled-in appropriate questionnaire to provide feedback and their opinion. Results of questionnaire are presented, discussed and a comparative analysis is given. © 2013 ACM.

关键词： Surveys

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Quick separation in chordal and split graphs 45

Quick separation in chordal and split graphs

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45th International Symposium on Mathematical Foundations of computer Science, MFCS 2020

作者： Misra, Pranabendu Panolan, Fahad Rai, Ashutosh Saurabh, Saket Sharma, Roohani Max Planck Institute for Informatics Saarland Informatics Campus Saarbrücken Germany Department of Computer Science and Engineering IIT Hyderabad India Depaertment of Applied Mathematics Charles University Prague Czech Republic Institute of Mathematical Sciences HBNI India UMI ReLax Chennai India University of Bergen Norway

ISBN: (纸本)9783959771597

In this paper we study two classical cut problems, namely Multicut and Multiway Cut on chordal graphs and split graphs. In the Multicut problem, the input is a graph G, a collection of vertex pairs (si, ti), i ∈ [], and a positive integer k and the goal is to decide if there exists a vertex subset S ⊆ V (G) \ {si, ti: i ∈ []} of size at most k such that for every vertex pair (si, ti), si and ti are in two different connected components of G − S. In Unrestricted Multicut, the solution S can possibly pick the vertices in the vertex pairs {(si, ti): i ∈ []}. An important special case of the Multicut problem is the Multiway Cut problem, where instead of vertex pairs, we are given a set T of terminal vertices, and the goal is to separate every pair of distinct vertices in T × T. The fixed parameter tractability (FPT) of these problems was a long-standing open problem and has been resolved fairly recently. Multicut and Multiway Cut now admit algorithms with running times 2O(k3)nO(1) and 2knO(1), respectively. However, the kernelization complexity of both these problems is not fully resolved: while Multicut cannot admit a polynomial kernel under reasonable complexity assumptions, it is a well known open problem to construct a polynomial kernel for Multiway Cut. Towards designing faster FPT algorithms and polynomial kernels for the above mentioned problems, we study them on chordal and split graphs. In particular we obtain the following results. 1. Multicut on chordal graphs admits a polynomial kernel with O(k37) vertices. Multiway Cut on chordal graphs admits a polynomial kernel with O(k13) vertices. 2. Multicut on chordal graphs can be solved in time min{O(2k · (k3 + ) · (n + m)), 2O( log k) · (n + m) + (n + m)}. Hence Multicut on chordal graphs parameterized by the number of terminals is in XP. 3. Multicut on split graphs can be solved in time min{O(1.2738k+kn+(n+m), O(2·`·(n+m))}. Unrestricted Multicut on split graphs can be solved in time O(4 · · (n + m)). © Nathalie B

关键词： Graphic methods

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Proceedings of International Ethical Hacking Conference 2018 1

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丛书名： Advances in Intelligent Systems and Computing

1000年

作者： Mohuya Chakraborty Satyajit Chakrabarti Valentina Emilia Balas J. K. Mandal

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Building project-based learning platform for the capstone project 23

Building project-based learning platform for the capstone pr...

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23rd International Conference on computers in Education, ICCE 2015

作者： Hu, Li-Ling Tseng, Shian-Shyong Weng, Jui-Feng Department of Computer Science and Information Engineering Asia University Taichung Taiwan Department of Digital Media Design Tatung Institute of Technology Chiayi Taiwan Department of Applied Informatics and Multimedia Asia University Taichung Taiwan

ISBN: (纸本)9784990801472

The goal of capstone project is to train students to be able to apply the required knowledge and skill to collaboratively complete the assigned work. The project-based learning (PBL) is a popular strategy used by teachers to guide students to organize teams to solve problem collaboratively and to enhance students' creative and problem solving abilities in capstone project. However, the traditional PBL strategy cannot effectively enhance the students' abilities because the previous good cases cannot be easily shared and reused. Therefore, our idea is to develop a good platform to be able to share and reuse the cases together with portfolios to motivate student's imaginative power and creativity and the teachers can easily assess the students' learning achievements. Because Case-Based Reasoning (CBR) techniques consisting of cases retrieve, reuse, revise and retain can be used to model the computer reasoning, we develop a project-based learning platform using the CBR techniques to provide the case scaffoldings and reserve the learning portfolio. We further design an experiment based upon our learning platform to complete the e-book visual creative design. The experimental result shows that the given appropriate learning scaffoldings can guide students to improve the creative and problem solving abilities.

关键词： Students

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Improving DL-Learner on a Malware Detection Use Case 36

Improving DL-Learner on a Malware Detection Use Case

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36th International Workshop on Description Logics, DL 2023

作者： Bisták, Tomáš Švec, Peter Kluka, Ján Šimko, Alexander Balogh, Štefan Homola, Martin Department of Applied Informatics Faculty of Mathematics Physics and Informatics Comenius University Mlynská dolina Bratislava842 48 Slovakia Institute of Computer Science and Mathematics Faculty of Electrical Engineering and Information Technology Slovak University of Technology Ilkovicova 3 Bratislava812 19 Slovakia

Automation of malware characterization has become increasingly important for early malware detection over the past decades. Since it is crucial to be able to perform malware detection transparently, explainable machine-learning methods may be considered particularly suitable for this application. In our previous work, we thus employed algorithms for learning description-logics concept expressions to obtain structured characterizations of malicious software. The results of our initial experiments, however, lead us to several inconsistencies in the behaviour of the studied algorithms included in DL-Learner, a widely adopted framework for concept learning. Hence, in this work, we make a couple of corrections to DL-Learner, along with a few further enhancements, and repeat the experiments to empirically assess the effects of our changes. The outcomes show that the modified algorithms can mark an improvement in terms of the predictability of their behaviour as well as evaluation metrics. © 2023 CEUR-WS. All rights reserved.

关键词： Malware

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