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The Analysis of Portals Considering Mobile Clients

JOURNAL OF ADVANCED COMPUTATIONAL INTELLIGENCE AND INTELLIGENT INFORMATICS 2014年第3期18卷 306-310页

作者： Kocsis, Gergely ekler, peter Albert, Istvan Budapest Univ Technol & Econ Fac Elect Engn & Informat Dept Automat & Appl Informat Magyar Tudsok Krtja 2 H-1117 Budapest Hungary

Web analytics are used to retrieve anonymous information about users. We focus here on websites that support mobile clients. This information is important from the perspective of business analysis as web analytics help in making appropriate design decisions. Popular web sites may handle several million page views a day, so poor system design - even that related only to collecting statistics on user behavior - may produce performance bottlenecks or even system failures. This paper presents measurements based on a user-data database for a large mobile supported website and a model used when designing such sites.

关键词： website load mobile websites resource requirement estimation

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Gamification and driving decision support using the sensors of vehicles and smartphones

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INTELLIGENT DECISION TECHNOLOGIES-NETHERLANDS 2017年第4期11卷 423-430页

作者： Sik, David ekler, peter Lengyel, Laszlo Budapest Univ Technol & Econ Dept Automat & Appl Informat Magyar Tudosok Krt 2Bldg Q H-1117 Budapest Hungary

Vehicles are not just a means of transportation anymore, but they are also moving entities that collect and transmit a great amount of data, captured by sensors from the internals of the vehicle and from its environment as well. These data extended with smartphone sensors can be a stable base for smart car-based infocommunication systems. There are two main interfaces to extract the data from a vehicle: OBD-II (On-board Diagnostics) and CAN bus (Controller Area Network bus). This paper introduces an advanced measurement tool, called ObdCanCompare. The purpose of this tool is to provide an environment to compare these data streams in real time and conclude how and which interface can be used for derivation of driving decisions. It also enables creating business intelligence reports using the SensorHUB-based backend, which is our data collection and service development for sensor networks, smart devices and cloud-based backend environments. Results show that the OBD-II interface is quite accurate compared to CAN bus, in order to demonstrate this we have created the Social Driving application as a socio-cognitive ICT pilot application that displays vehicle data to users from OBD-II and enables to compare usage statistics of different drivers in the network as a socio-cognitive gamification.

关键词： OBD-II CAN SensorHUB VehicleICT driving decision gamification socio-cognitive ICT

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Practical Evaluation of Multi-Source Coded Downloads

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IEEE ACCESS 2019年 7卷 120304-120314页

作者： Braun, Patrik J. Medard, Muriel ekler, peter MIT Res Lab Elect Cambridge MA 02139 USA Budapest Univ Technol & Econ Dept Automat & Appl Informat H-1111 Budapest Hungary

In this paper, we introduce two multi-source download protocols for loosely orchestrated networks that have high potential in Information-Centric Networking (ICN). We focus on services with high bandwidth and low delay requirements, such as video streaming. We propose MUlti-source Transmission Protocol (MUTP) for uncoded multi-source data delivery and extend it with network coding capabilities to create Coded MUTP. We investigate their throughput using a custom-designed system that includes browser extensions and proxy servers. The browser extensions intercept YouTube video downloads and forward them through our proxy server, using parallel HTTP requests, Uncoded MUTP or Coded MUTP approach. We present measurement results collected in 2018-2019, over eleven months that include 1,300,000 log records from more than 960 GBs of video download. We show that even when downloading from only two sources, our protocols can match the heavily optimized HTTP. Furthermore, by increasing the number of sources to four or higher, MUTP protocols can outperform HTTP, reaching an up to three-fold goodput (useful throughput) increase. In addition, we show that the proposed solution avoids the straggler problem, therefore adding more sources to a network increases its goodput.

关键词： Servers Protocols Streaming media Throughput Network coding YouTube Bandwidth Edge cloud JavaScript multi-source download network coding video download WebRTC

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Resource Requirements Estimating of Mobile Supported Websites

Resource Requirements Estimating of Mobile Supported Website...

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3rd IEEE International Conference on Cognitive Infocommunications (CogInfoCom)

作者： Kocsis, Gergely ekler, peter Origo Zrt Budapest Hungary Budapest Univ Technol & Econ Dept Automat & Appl Informat Budapest Hungary

ISBN: (纸本)9781467351881;9781467328913

The number of page views can be millions per day on large mobile websites, thus the amount of stored user-data (the amount of analytics data generated by a user visit event) can be millions per day as well. Poor system design, even related to gathering user behavior statistics, can lead to system crash, for example when the data-processing cost of operations is growing exponentially but the hardware performance under the application is around constant. Increasing the performance of the hardware exponentially is not possible in the practice, therefore only optimal data processing can lead to efficient system operation. Mobile web analytics is a process through which statistics about website usage and mobile user behaviors are gathered. Such an analytics program can be used as a tool to get information about mobile users, who they are, where they are coming from, how often they are visiting a website and how much time do they spend on a website. This information is very important from the perspective of business analysis as they helps to make appropriate decisions about a website. In this paper mobile supported websites are considered and it is shown how to calculate the number of user-data records generated in the database per day and total from system startup in general with the aim of estimating the resource requirements of a measurement/analyzing application to mobile supported sites. In addition, measurements are presented based on a user-data database of a large mobile supported website to illustrate the behavior of the proposed models.

关键词： Websites

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The Analysis of Participatory Computing in Dynamic Web Environments 15

The Analysis of Participatory Computing in Dynamic Web Envir...

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15th IEEE International Symposium on Applied Machine Intelligence and Informatics (SAMI)

作者： Janoky, Laszlo Viktor ekler, peter Budapest Univ Technol & Econ Dept Automat & Appl Informat Budapest Hungary

ISBN: (纸本)9781509056552

Participatory Computing is the concept of a group of computers contributing processing power and storage to form a larger, distributed computing system. Past experiences show that a system of this type can reach performance rivaling the fastest supercomputers in the world. In theory, any connected modern PC could participate and yet the prevalence of these systems is not comparable to their potential numbers. In this paper, we analyze the main barriers ahead the larger adaptation of participatory systems and propose solutions around them. Ultimately by applying these solutions we prove their workability by showing and evaluating a proof-of-concept system and measurements related to it. The proposed results can offer several advantages in the field of participatory computing where the new technologies are applied.

关键词： Supercomputers

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Analyzing the resource requirements of usage statistics gathering on online newspapers

Analyzing the resource requirements of usage statistics gath...

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13th IEEE International Symposium on Computational Intelligence and Informatics, CINTI 2012

作者： Kocsis, Gergely ekler, peter Origo Zrt Budapest Hungary Budapest University of Technology and Economics Department of Automation and Applied Informatics Hungary

ISBN: (纸本)9781467352062

关键词： Search engines

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4th International Conference on Internet and Web Applications and Services

作者： ekler, peter Ivanfi, Zoltan Aczel, Kristof Budapest Univ Technol & Econ Dept Automat & Appl Informat Magyar Tudosok Korutja 2 H-1113 Budapest Hungary Nokia Siemens Networks Budapest Hungary

ISBN: (纸本)9781424438518

In the past years many social network implementations have come to existence. There is not one network, but many, and the user-base of these networks is different. Connecting the users of the separate network's is currently unsolved and seducing new users to existing systems becomes harder and harder as the users are not willing to join too many systems and build up their contact base from scratch each time. lit this paper we propose a solution for the problem of finding existing contacts in a new system. An implementation of the described algorithm is also illustrated. Utilizing the algorithm in existing or new social networks can efficiently reduce the time needed for the users to find their friends in a newly joined network.

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Toward Cognitive Data Analysis with Big Data Environment 9

Toward Cognitive Data Analysis with Big Data Environment

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9th IEEE International Conference on Cognitive Infocommunications (CogInfoCom)

作者： Sik, David Csorba, Kristof ekler, peter Budapest Univ Technol & Econ Dept Automat & Appl Informat Budapest Hungary

ISBN: (纸本)9781538670941

In our previous research a Geographic Information System microservice was introduced as part of the SensorHUB framework and CV4SensorHUB framework. The main data sources and architectural background was presented. The purpose of the GIS microservice is also to serve as a research and development subsystem connecting the two frameworks. We implemented services to show the strength of the microservice architecture-based framework ecosystem. For this we also used the terminology of Industrial Data Space architecture model. In this paper we present case studies showing how it connects the frameworks, how the data flow can be controlled;or how it collects location-based data from smartphone environments. Another case study introduces a route planning service using current live data from different data sources. The paper also presents the possibilities of load-based, network traffic-based and code-based performance measurement in the system with the comparison of different data aggregation methods (Java-based and MapReduce-based implementation) towards the cognitive data analysis and human-machine interface.

关键词： GIS Data analysis Performance measurement MapReduce Big Data

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Analyzing the Resource Requirements of Usage Statistics Gathering on Online Newspapers

Analyzing the Resource Requirements of Usage Statistics Gath...

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13th IEEE International Symposium on Computational Intelligence and Informatics (CINTI)

作者： Gergely Kocsis peter ekler Origo Zrt Budapest Hungary Budapest Univ Technol & Econ Dept Automat & Appl Informat Budapest Hungary

ISBN: (纸本)9781467352062;9781467352055

Web analytics is a process through which website usage statistics and user behavior data are gathered. Such an analytics program can be used as a tool to get anonym information about users, for example who they are, from which site are they are coming, how often they are visiting the website, how much time do they spent on a site, etc. In this paper we focus on the performance of large websites from the perspective of web analytics and the required extra storage space. The number of page views can be millions per day on large websites, thus the stored user-data number (the amount of analytics data generated by a user visit event) is millions per day as well. Poor system design, even related to gathering user behavior statistics, can lead to system crash. Increasing the performance of the hardware exponentially is not possible in the practice, therefore only optimal data processing can lead to efficient system operation. In this paper we show how to calculate the number of user-data records generated in the database per day and total from system startup in general. Based on that we propose a model to calculate the cost of article high score list which is usually generated at least daily in such systems. Finally, the affect of different search engines are examined.

关键词： Web statistics Web analysis system and database design Web search engines high score lists

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Implementation of a Geographic Information System with Big Data Environment on Common Data Model 8

Implementation of a Geographic Information System with Big D...

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8th IEEE International Conference on Cognitive Infocommunications (CogInfoCom)

作者： Sik, David Csorba, Kristof ekler, peter Budapest Univ Technol & Econ Dept Automat & Appl Informat Budapest Hungary

ISBN: (纸本)9781538612644

We introduce an implementation of a GIS (Geographic Information System) research and development subsystem in the CV4SensorHUB (Computer Vision for SensorHUB) framework. The main concept is the usage and connection of open-access online databases such as OpenStreetMaps, Citybik. es, BKK Futar, MAV Elvira and others. These databases cover different fields in the geographic domain. By connecting these databases with MapReduce paradigm and implementing smart algorithms, we are about to create an online tool where users could parametrize their trips around the town, using the live information and then visualize them on a map. For example, with the OpenStreetMaps it is possible to extract the maps, streets, POIs (point of interest), then with the Citybik. es we can get the live data about public bicycle sharing system, and with the BKK Futar we can access the live public transportation data, vehicles, timetables. In this paper, we focus on the data sources, the architecture with its common data model, and the main implementation steps of the system.

关键词： GIS Geospatial MapReduce Big Data Common Data Model

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