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1.
Multiple allocation p-hub location problem for content placement in VoD services: a differential evolution based approach
Soumen Atta, Goutam Sen, 2020, izvirni znanstveni članek

Opis: In video-on-demand (VoD) services, large volumes of digital data are kept at hubs which are spatially distributed over large geographic areas and users are connected to these hubs based on their demands. In this article, we consider a large database of video files, that are pre-partitioned to multiple segments based on the demand patterns of users. These segments are restricted to be located only in hubs. Here, users are allowed to be allocated to multiple hubs and all hubs are assumed to be connected with each other. We jointly decide the location of hubs, the placement of segments to these hubs and then the assignment of users to these hubs as per their demand patterns and finally, we find the optimal paths to route the demands of users for different segments having the objective of minimizing the total routing cost. In this article, a differential evolution (DE) based method is proposed to solve the problem. The proposed DE-based method utilizes an efficient function to evaluate the objective value of a candidate solution to the proposed problem. It also incorporates two problem-specific solution refinement techniques for faster convergence. Instances of the problem are generated from the real world movie database and the proposed method is applied to these instances and the performance is evaluated against the benchmark results obtained from CPLEX.
Ključne besede: Video-on-demand (VoD) services, Content distribution networks, Database segment location, Hub location, Multiple hub allocation, Differential evolution (DE), IBM ILOG CPLEX
Objavljeno v RUNG: 17.04.2023; Ogledov: 1171; Prenosov: 0
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2.
Monitoring the success of the performance of a travel agency with the Power BI tool : diploma thesis
Riste Ristov, 2022, diplomsko delo

Opis: In today’s times, when digitalisation is advancing in all areas, travel agencies need to follow trends to optimise their work as much as possible and stay competitive. Business information systems provide a more detailed insight into business processes and their operation, which helps monitor progress and adapt to possible changes to achieve the best results in the business world. Travel agencies need a quality business information system that helps employees shift from using basic office tools to more modern and effective systems for reporting and monitoring work performance. Data is the basis on which agencies adjust, optimise and build their business. Data is available in huge quantities and a variety of formats. Raw data that is not organised into a meaningful whole cannot bring added value to the company. The thesis aims to use Power BI as a tool for editing and integrating databases in travel agencies, as well as their visualisation and display, which is understandable for the user. With the help of the tool, we will create a report which will help the travel agency improve its business and make critical decisions that are critical for success.
Ključne besede: Travel agency, business information system, data, database, Power BI, visualisation
Objavljeno v RUNG: 30.09.2022; Ogledov: 1882; Prenosov: 66
.pdf Celotno besedilo (1,26 MB)
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3.
AphasiaBank_ Italian
Sara Andreetta, zaključena znanstvena zbirka raziskovalnih podatkov

Ključne besede: aphasia, discourse analysis, Italian language, discourse database, CLAN, CHAT
Objavljeno v RUNG: 21.07.2022; Ogledov: 1456; Prenosov: 31
.pdf Celotno besedilo (15,53 KB)

4.
Analysing security checkpoints for an integrated utility-based information system
Sunil K. Muttoo, Rajan Gupta, Saibal K. Pal, 2016, objavljeni znanstveni prispevek na konferenci

Opis: With the rising digital medium, the various digital applications are rising too. These applications can work in the private domain or public domain depending upon the environment and features. Of late, the public infrastructure in India is improving and thus digitisation of the services and processes are making it better for the government to function. Lots of new services and applications are planned through desktop-and mobile-based information systems. But any information system requires a good security cover for it to function correctly and efficiently. One such new system was proposed for integrating the various utility systems in Delhi, NCR, for which various security checkpoints are discussed in this paper. These are related to database security, network security, cryptography, and the user authentication process. These checkpoints will be helpful in making the newly proposed information system more secure and will also be helpful in analysing the need and scope of new security features in it. Security concerns are analysed at different levels of the information system and suggestions are made for the system which can be implemented in the currently proposed system. These suggestions can also be used in other similar systems as well as for improving and enhancing security at various levels.
Ključne besede: information systems, integrated utility system, database security, network security, data security, information system security, e-governance
Objavljeno v RUNG: 15.07.2021; Ogledov: 2254; Prenosov: 10
URL Povezava na celotno besedilo
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5.
A cellular network database for fingerprint positioning systems
Donatella Gubiani, Paolo Gallo, Andrea Viel, Andrea Dalla Torre, Angelo Montanari, 2019, objavljeni znanstveni prispevek na konferenci

Opis: Besides being a fundamental infrastructure for communication, cellular networks are increasingly exploited for positioning via signal fingerprinting. Here, we focus on cellular signal fingerprinting, where an accurate and comprehensive knowledge of the network is fundamental. We propose an original multilevel database for cellular networks, which can be automatically updated with new fingerprint measurements and makes it possible to execute a number of meaningful analyses. In particular, it allows one to monitor the distribution of cellular networks over countries, to determine the density of cells in different areas, and to detect inconsistencies in fingerprint observations.
Ključne besede: Cellular network, Signal fingerprinting, Multilevel database, Data analysis
Objavljeno v RUNG: 17.09.2019; Ogledov: 3572; Prenosov: 0
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6.
W OMEN W RITERS D ATABASE AND VIRTUAL RESEARCH ENVIRONMENT BEYOND THE CURRICULA OF LITERARY SCHOLARSHIP
Aleš Vaupotič, Narvika Bovcon, 2017, objavljeni povzetek znanstvenega prispevka na konferenci

Opis: The study of informatics typically includes information visualization and the rhetoric of user interface. Such courses are expanding the core computer science curricula towards multimedia communication design. However, to practice visualization on datasets in a non-focused way may diminish the quality of educational effect as well as the quality of the results of students' projects. A collaboration with domain experts has proven to be very beneficial by involving students in various research projects and platforms. The students of informatics at the Faculty of Computer and Information Science, University of Ljubljana, have touched upon humanities projects in different special domains: the datasets provided by Institute of Contemporary History (INZ, Ljubljana), interface design for electronic scholarly editions based on TEI XML files, documentation of new media art exhibitions, and others. As noted by some contributors in A New Companion to Digital Humanities (2016) with relevance to the latter aspect of interdisciplinary contact, the domain of new media art constitutes an essential inspiration for the study of digital humanities methods and approaches. In the second part of the paper, the multi-year collaboration between the University of Nova Gorica and University of Ljubljana computer-science curricula will be presented. The WomenWriters database, as well as subsequently the NEWW VRE, has been used in different models of interdisciplinary collaboration.
Ključne besede: virtual research environment, WomenWriters database, interdisciplinary collaboration, digital humanities, information visualization
Objavljeno v RUNG: 05.03.2018; Ogledov: 4352; Prenosov: 0
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7.
Dealing with network changes and trajectories in patio-temporal databases for positioning systems
Andrea Viel, 2015, magistrsko delo

Ključne besede: database, positioning systems, cellular network
Objavljeno v RUNG: 25.01.2017; Ogledov: 4487; Prenosov: 0
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8.
A spatio-temporal database for positioning systems: the case of CellLocate
Marco Tosolini, 2014, magistrsko delo

Ključne besede: database, positioning systems, cellular network
Objavljeno v RUNG: 25.01.2017; Ogledov: 4582; Prenosov: 0
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9.
An automated system for dynamic management of SUAP
2014, magistrsko delo

Ključne besede: automated system, dynamic management, productive activities, public administration, database design, web system
Objavljeno v RUNG: 28.11.2016; Ogledov: 4812; Prenosov: 0
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