The essence of this work is employment of IT and mathematical methods in development of remote applications with dynamically changing media. Analysis and practical use of methods are based on instances of internet games. The main groups and peculiarities of rapidly growing entertainment form – internet games – and programming technologies and languages used in development of such games are presented. Multiplayer multisession internet games with persistent world are analyzed. The main purpose of work is to highlight such games' dynamic aspects and implementing solutions. Differences and similarities of dynamics in real time games and turn-based games are highlighted with aim to integrate strength of both groups. Goals of work are analysis of methods and implementation of factors which influence game dynamics: user activity synchronization, persistent and changing game environment, data streaming. Implementation solutions are submitted in form of multiplayer real time internet game "Žvejyba".

Šiuo metu medžiagų poreikis gamybai yra labai išaugęs.Todėl inžinieriai stengiasi atrasti vis naujų arba tobulesnių medžiagų. Daugiasluoksnės konstrukcijos įgauna vis didesnę paklausą, dėl savo savikainos ir pritaikymo galimybės.Naudojant šias medžiagas galima gauti norimas masės ir stiprumo konstrukcijas. Daugiasluoksniams konstrukciniams elementams gaminti naudojamos tokios medžiagos kaip:stiklo, boro, plastiko pluoštai ir t.t. Mes išanalizavome 6 metrų sijas iš dviejų medžiagų. Mes analizavome skirtingus skerspjūvius ir skirtingus sluoksnių storius, paskaičiavome skerspjūvių stiprumą ir standumą. Taip pat analizavome racionalių sijų pranašumus. Nustatyta kurie skerspjūviai yra pranašiausi. Taip pat nustatyta, kad racionalios sijos yra pranašesnės už vientiso skerspjūvio. Gavome, kad racionalios sijos yra pigesnės iki 30 procentų. / Dolieba M. Influence of analysis of Strength and Stiffness of Two- Ply Beam: Master thesis of mechanical engineer / research advisor Assoc. Prof. habil. Dr. J. Bareišis; Šiauliai University, Technological Faculty, Mechanical Engineering Department.- Šiauliai, 2007. Materials for construction needful more and more. Engineers trying to get more perfection materials. Multiplayer construction is very popular at this time, because it is cheaper, we can reduce the weight and the forse. Different products and constructions elements using multiplayer constructions from glass, carbon, boric plastic and other materials. We analysing six meters beam from two ply. We take different cross-section and different high of ply and analysing strength and stiffness. After we calculating how less material need for rational beam. In result we see which cross-section are best for using. At first we see that multiplayer constructions have the advantage before common beams. We get that rational beam are thirty percent cheaper.

In the recent years, cloud services are dominating the internet world. Streaming video content is drastically increased. This trend created a way for the cloud gaming industry. Gaming Anywhere is one such an open source cloud gaming system designed specifically for gaming users to experience high-quality gaming while eliminating the burden of upgrading hardware or software whenever the gaming system becomes outdated. Gaming Anywhere client can stream the desired game from a remote server with high-quality resolution and fps. Gaming Anywhere launches almost all type of games as per the request of the client. In this paper, the performance of a Gaming Anywhere server is evaluated in a virtual windows environment. Performance is categorically divided into two types. One is server metrics and the other is power consumption. Server metrics deals with CPU utilization, GPU utilization and multi-player capability. Power consumption deals with the CPU power usage of a virtual machine. The main aim of this paper is to conduct measurement studies on Gaming Anywhere server in two virtual implementation kits, VMware and VirtualBox, using monitoring tools. The analysis of the outcome is evaluated against the Gaming Anywhere physical server.

Detta arbete syftar till att undersöka hur Csikszentmihalyis teorier kring optimala upplevelser, eller flow-upplevelser, kan appliceras på praktisk speldesign. I arbetet kombineras Csikszentmihalyis definition av begreppet flow med Jenova Chens riktlinjer för flow-uppmuntrande design i singleplayerspel för att ge underlag för framtagandet av ett brädspel i vilket applicerbarheten hos deras teorier och riktlinjer på multiplayerspel undersökts. För att teorierna och riktlinjerna effektivt skulle kunna undersökas utvecklades det tre olika versioner av brädspelet som alla innehåller olika element som, enligt Csikszentmihaly och Chen, bör alstra flow. Ett flertal spelgrupper fick spela dessa tre versioner och via enkätundersökningar och intervjuer förmedla hur de upplevde de olika versionerna, både som individuella produkter och i jämförelse med varandra. De data som erhålldes från dessa undersökningar indikerade på att nivån av kontroll spelaren har över sin spelsituation spelar en väldigt avgörande roll i hur han eller hon upplever spelaktiviteten i sin helhet.

The last ten years, online multiplayer games have become very popular. During the same time period mobile terminals and cellular networks have undergone a tremendous technical evolution. Therefore it is natural to wonder why we have not seen an online mobile multiplayer gaming revolution yet. The answer to this question is of great value for companies selling mobile systems. This answer is important in order to understand how to fill up today’s empty networks with traffic and what kind of traffic these games will generate. This thesis is a continuation of Mattias Åkervik’s thesis. It gives the reader an understanding of what kind of wireless technologies are on the market today and how they perform. Given this performance background, some suitable games were chosen to examine how they perform over a particular cellular network and to determine the perceived gaming quality that a user experience. The thesis also examines the particular packet traffic characteristics generated by these games to gain a better understanding of how to better adapt cellular networks towards gaming. Finally the market will be analyzed. Not only how large this potential market is, but to examine if there are some market issues preventing the revolution in network cellular on-line multiplayer games. / De senaste tio åren har multiplayer gaming blivit väldigt populärt. Under samma tidsperiod har cellulära terminaler och de mobile nätverken genomgått en stor teknisk evolution. Därför kan man undra varför inte mobile multiplayer gaming har slagit igenom än. Svaret på denna fåga är värdefullt för föreatag som säljer mobila system, men även mobiloperatörerna, dådet kan ge en hint hur man bättre kan fylla ut dagens tomma 3G system med trafik. Detta examensarbete är en fortsättning på Mattias Åkerviks arbete. Det ger läsaren en förståelse i dagens trådlösa teknologier och vad de kan prestera. Med detta i bagaget kommer ett antal spel undersökas och hur deras spelupplevelse influeras av begräsningarna som de mobila nätverken har. Arbetet kommer också att behandla vilken trafik dessa spel genererar, då detta kan ge en bättre förståelse i hur man kan anpassa nätverken i ett gamingsyfte. Slutligen kommer marknaden att analyseras. Inte bara det potentiella värdet av gamingmarknaden, men även om det finns några marknadsstrukturella orsaker som bromsar utvecklingen av mobila multiplayer spel.

Currently, multiplayer online games use the client-server architecture which is very resource intensive, expensive, and time consuming. Peer-to-peer protocols are a less resource intensive alternative to the client-server model. We implement a peer-to-peer protocol called NEO in a multiplayer game and run experiments in a lab setting and over the Internet. These experiments show us that NEO is able to run a smooth playable game, with low unused updates and low location error. This happens as long as the arrival delay is long enough to allow updates to arrive in the given time limit and the round length is short enough to keep the location error down. However, the experiments also show that NEO has scalability problems that need to be corrected. When more than 4 clients are used the playout delay is the same length as the round which causes high location error. Also, more clients cause more updates to go unused which also causes high location error.

As online video games rise in popularity, there has been a significant increase in fraudulent behavior and malicious activity. Numerous methods have been proposed to automate the identification and detection of such behaviors but most studies focused on situations with perfect prior knowledge of the gaming environment, particularly, in regards to the malicious behaviour being identified. This assumption is often too strong and generally false when it comes to real-world scenarios. For these reasons, it is useful to consider the case of incomplete information and combine techniques from machine learning and solution concepts from game theory that are better suited to tackle such settings, and automate the detection of anomalous behaviors. In this thesis, we focus on two major threats in competitive multiplayer games: intrusion and device compromises, and cheating and exploitation. The former is a knowledge-based anomaly detection, focused on understanding the technology and strategy being used by the attacker in order to prevent it from occurring. One of the major security concerns in cyber-security are Advanced Persistent Threats (APT). APTs are stealthy and constant computer hacking processes which can compromise systems bypassing traditional security measures in order to gain access to confidential information held in those systems. In online video games, most APT attacks leverage phishing and target individuals with fake game updates or email scams to gain initial access and steal user data, including but not limited to account credentials and credit card numbers. In our work, we examine the two player game called FlipIt to model covert compromises and stealthy hacking processes in partial observable settings, and show the efficiency of game theory concept solutions and deep reinforcement learning techniques to improve learning and detection in the context of fraud prevention. The latter defines a behavioral-based anomaly detection. Cheating in online games comes with many consequences for both players and companies; hence, cheating detection and prevention is an important part of developing a commercial online game. However, the task of manually identifying cheaters from the player population is unfeasible to game designers due to the sheer size of the player population and lack of test datasets. In our work, we present a novel approach to detecting cheating in competitive multiplayer games using tools from hybrid intelligence and unsupervised learning, and give proof-of-concept experimental results on real-world datasets.

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Two primary types of multiplayer gaming have emerged over the years. The first type involves co-located players on a shared display, and typically caps at four players. The second type of gaming provides a single display for each player. This type scales well beyond four players, but places no requirement on co-location. This paper will attempt to combine the best of both worlds via high-resolution, highly-multiplayer gaming. Over the past few years, there has been a rise in the number of extremely high-resolution, tiled displays. These displays provide an enormous amount of screen space to work with. This space was used to allow twelve co-located players to play a game together. This study accomplishes three things: we designed and built PyBomber, a high-resolution and highly multiplayer game for up to twelve players; secondly, user trials were conducted to see whether this type of gaming is enjoyable as well as to learn what sorts of social interactions take place amongst so many players; lastly, the lessons learned were generalized into design criteria for future high-resolution games. Results show that with more people, much more of the time during a game was filled with vocal interactions between players. There were also more physical movements in the larger games. Over the course of this study, we learned that good high-resolution games will: decide between a singular gameplay area and split views, use the physical space in front of the display, provide feedback that is localized to each player, and utilize input devices appropriately. / Master of Science

Made available in DSpace on 2016-04-26T18:17:01Z (GMT). No. of bitstreams: 1 dissertacao_capa_resumo_indice_victoremm.pdf: 122687 bytes, checksum: 26318df16cecbdfe740cba1f87184dff (MD5) Previous issue date: 2005-05-09 / The present inquiry presents a proposal of analyzes of the interactive structures in games carried through in digital environments and its possible reuse in new communication processes in cooperation with the computer sciences and the hypermedia. It currently analyzes the processes of authoring of games of the historical, conceptual point of view and the perspectives of interdisciplinary concept gifts inside of the research carried through in the academy in that it says respect the matrices of the language and thought. The referencial model multi-player (Counter-Strike) studied involves strategies of complex reuses and interactive. The research identified as basic elements of the process the work in qualified teams, either in the planning, same development and in the conduction of the practical ones of use to the user level. The used concept of team is of interdisciplinary concept, what it becomes the interesting research for the contexts of the entertainment and education. The reuses concept if becomes operative when it is developed by the current inquiries on the interactive, which is presented from the research in semiotics and hypermedia, leaving the open possibility of its extension for the area of the education. / A presente investigação de mestrado apresenta uma proposta de análise das estruturas interativas em jogos realizados em ambientes digitais, e sua possível reutilização em novos processos comunicacionais em cooperação com as ciências da computação e a hipermídia. Analisa os processos de autoria de games do ponto de vista histórico, conceitual e as perspectivas interdisciplinares presentes atualmente, dentro das pesquisas realizadas na academia, no que diz respeito às matrizes da linguagem e pensamento. O modelo referencial multi-jogador (Counter-Strike) estudado envolve estratégias de reutilização e interatividade complexas. A pesquisa identificou como elementos fundamentais do processo o trabalho em equipes qualificadas, seja no planejamento, desenvolvimento e mesmo na condução das práticas de utilização ao nível de usuário. O conceito de equipe utilizado é o de interdisciplinaridade, o que torna a pesquisa interessante para os contextos do entretenimento e educação. O conceito de reutilização se torna operativo quando é incrementado pelas investigações atuais sobre a interatividade, a qual é apresentada a partir das pesquisas em semiótica e hipermídia, deixando a possibilidade aberta de sua extensão para a área da educação.