Community Discovery for Interest Management in DVEs: A Case Study

Carlini, Emanuele; Dazzi, Patrizio; Mordacchini, Matteo; Lulli, Alessandro; Ricci, Laura

doi:10.1007/978-3-319-27308-2_23

Cited by 2 publications

(5 citation statements)

References 21 publications

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“…We implemented trace in Java and we make the code publicly available 4 . For all the experiments, we considered a virtual environment composed by a squared region with side having 1500 points.…”

Section: Resultsmentioning

confidence: 99%

“…In order to overcome these drawbacks, we developed trace, a software library that generate avatar positions according to mobility models. Initially, we have used trace for internal research (such as in [4,5]) but eventually we have made it available for the whole DVE community. trace: (i) provides means to generate traces for a wide variety of DVE-based mobility models; (ii) allows to export and reload traces for later uses and comparisons; (iii) works in memory (Java) and with a separate visual tool; (iv) is fully configurable, both on mobility models and the map; (v) is designed for an easy integration of new and personalized mobility models; (vi) uses a unified format in all the mobility models used.…”

Section: Introductionmentioning

confidence: 99%

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TRACE: Generating Traces from Mobility Models for Distributed Virtual Environments

Carlini

Lulli

Ricci

2017

Euro-Par 2016: Parallel Processing Workshops

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The development and evaluation of a proper mobility model is an essential feature to evaluate a system that manages a virtual world. In distributed virtual environments, this is also more important because each avatar requires a consistent view of the world that usually is splitted on multiple machines. Several models have been proposed in the literature to describe avatars' mobility, but a single environment supporting the generation of traces from different models to enable a simple comparison of them is still lacking. In this work we present a tool that implements popular mobility models and supports the generation of traces generated by them. This may help developers to easily validate their systems using several mobility models. Our tool provides a unified format to describe the traces, enables the generation of traces for thousands of avatars and defines an API enabling the integration of additional models.

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

TRACE: Generating Traces from Mobility Models for Distributed Virtual Environments

Carlini

Lulli

Ricci

2017

Euro-Par 2016: Parallel Processing Workshops

Self Cite

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“…We consider an application that measures how two community discovery mechanism improve the area coverage . Here, we show the applicability of TRACE in such scenario; for additional details on such application, please refer to the original paper.…”

Section: Implementation and Experimental Resultsmentioning

confidence: 99%

“…15 Here, we show the applicability of TRACE in such scenario; for additional details on such application, please refer to the original paper. 15 Here, we show the applicability of TRACE in such scenario; for additional details on such application, please refer to the original paper.…”

Section: An Application Of Tracementioning

confidence: 99%

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Model driven generation of mobility traces for distributed virtual environments with TRACE

Carlini

Lulli

Ricci

2017

Concurrency and Computation

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Avatars' mobility is an essential element to design, validate, and compare different distributed virtual environment architectures. It has a direct impact on the management of such systems because it defines the workload associated with the areas in the virtual world. Currently, a relevant part of this evaluation is conducted by means of synthetic traces generated through mobility models. Despite that, in the last decade, several models have been proposed in literature to describe avatars mobility. However, a standard methodology that drives researchers in their evaluation does not yet exist. In order to alleviate this issue, we present TRACE, an open source tool supporting the generation and analysis of traces by means of embedded mobility models. TRACE's ultimate aim is to facilitate the evaluation and comparison of virtual environments and allow researchers to focus on developing their solution rather than spend time to code and test custom mobility traces. TRACE provides a unified format to describe the traces. It enables scalable and efficient trace generation and analysis for thousands of avatars with seven built-in models.Also, it defines APIs enabling the integration of additional models, different configurations of the environment, and several built-in metrics to analyze the generated traces. KEYWORDS distributed virtual environment, mobility model, multiplayer games, open source 1 INTRODUCTION On-line gaming entertainment has received lots of popularity in the last decade from both industry and research communities. This attention is justified by the economic growth of the sector, in which massively multiplayer online games such as World of Warcraft 1 or Second Life 2 represent a remarkable member. From a practical point of view, massively multiplayer online games that are large-scale distributed applications are a synchronous, persistent, and interactive virtual environment that allows a huge amount of users worldwide to share a real-time virtual environment.In these applications, each individual is in control of a virtual character called avatar. The avatar is free to move in a virtual world, perform actions, activities relative to the game, and meet other avatars.One of the largest area of research in this context is to foster the transition of virtual environments from client-server to distributed applications.Such approaches, broadly referred to as distributed virtual environments (DVEs), 3 aim at achieving scalability and cost-effectiveness, by orchestrating the support of the virtual environment to exploit the computational and network resources of the users of the DVE. Common approaches for the definition of the distributed support are based on unstructured 4,5 and structured 6,7 peer-to-peer technologies, as well as more centralized technologies like cloud computing 8 .In such distributed approaches, a user resource (ie, peer) concurrently works both as client for an (usually single) avatar and as server for a part of the virtual world. This organization allows to exploit the inherent scalabili...

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Community Discovery for Interest Management in DVEs: A Case Study

Cited by 2 publications

References 21 publications

TRACE: Generating Traces from Mobility Models for Distributed Virtual Environments

TRACE: Generating Traces from Mobility Models for Distributed Virtual Environments

Model driven generation of mobility traces for distributed virtual environments with TRACE

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