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Second Life in Education: An overview AUTHOR: ALFREDO DE LA PRESA CRUZ .
AUTHOR: ALFREDO DE LA PRESA CRUZ . RECUPERACIÓN DE INFORMACIÓN  EN UN ENTORNO 3D: SECOND LIFE I. THE VIRTUAL WORLDS: STATE OF THE ART A virtual world is a computer simulated environment designed for its inhabitants to reside and use it. This is performed through the use of graphic representations -3D, 2D or text based representations called avatars.  Since a Virtual World is a very vague and inclusive concept, it might be divide into two big subgroups:  Massively multiplayer online role-playing games  or MMORPGs where the user that interprets an specific character is a main feature of the game.  Massively multiplayer online real-life/rogue-like games  or MMORLGs, where the user may edit and alter its avatar appearance at will, allowing them to play a more dynamic role or different roles. Following, there is a set of virtual worlds of the second kind. Second Life in Education: An overview
AUTHOR: ALFREDO DE LA PRESA CRUZ . RECUPERACIÓN DE INFORMACIÓN  EN UN ENTORNO 3D: SECOND LIFE Second Life in Education: An overview Second   Life Mokitown Entropia   Universe Planet   Cazmo Minyanland Dizziwood Playdo Meez Disney’s   Toontown Pixel   City Kaneva Cybertown Open   Sim Hello   Kitty MyCoke Open   Croquet Hipihi Club  Penguin Multiverse Habbo  Hotel Barbie   Girls MTV Gaia Awomo Moove Forterra   Systems Activeworlds
AUTOR: ALFREDO DE LA PRESA CRUZ . RECUPERACIÓN DE INFORMACIÓN  EN UN ENTORNO 3D: SECOND LIFE Second Life in Education: An overview Zwinky VpChat Zed   City Voy Plaza Yohoho ! Puzzle Voodoo  Chat Worlds.com Virtual  Magic   Kingdom Whirled Traveler Whyville TowerChat Whyrobbierocks There VZones The   Sims  Online Vside The   Palace
AUTHOR: ALFREDO DE LA PRESA CRUZ . RECUPERACIÓN DE INFORMACIÓN  EN UN ENTORNO 3D: SECOND LIFE We are going to examine some of them in some deep to see which is the state of the art with respect to the virtual worlds. Our first virtual world examined will be There.com, from which the following picture has been extracted:  Second Life in Education: An overview
AUTHOR: ALFREDO DE LA PRESA CRUZ . RECUPERACIÓN DE INFORMACIÓN  EN UN ENTORNO 3D: SECOND LIFE There.com  is a 3D virtual world created by Will Harvey and Jeffrey Ventrella.  Its release was in October 2003. In June 2004, it went through big changes. It contains 12 main islands and a number of other smaller islands, there are 500000 members and many community places, including business. The majority of the items such as surniture are designed to be used inside the homes. The economy uses Therebucks, virtual money with real value in the real world. Therebucks can be bought directly from There, from other members or from third parts –”banks” online, that usually offer competitive change rates. This world supports –only partially-Windows Vista. The fact that it is a PG World is viewed by some as a sign of the childish the project is, though others think that is precisely that which makes thing to be less bothered by “mature content”. Second Life in Education: An overview
AUTHOR: ALFREDO DE LA PRESA CRUZ . RECUPERACIÓN DE INFORMACIÓN  EN UN ENTORNO 3D: SECOND LIFE The next virtual world that we will see, will be Whyville, from which a picture us included:  Second Life in Education: An overview
AUTHOR: ALFREDO DE LA PRESA CRUZ . RECUPERACIÓN DE INFORMACIÓN  EN UN ENTORNO 3D: SECOND LIFE Whyville  is an educational place in Internet directed towards prescholars and teenagers. It was created originally as a support for the weekly article on science on the LA Tiems, its goal is to engage its users in the learning of a wide range of sbjects, from science and business to art and geography. It has about 2,8 millions players base. It has been notably successful in atracting young women. As a virtual world based on simulation, the environment users engage in games sponsored by a wide spectrum of governmental, non-lucrative and corporative entities. It was launched in 1999, by Numedeon, Inc.and it was one of the first virtual worlds for children and it is the only virtual world which purpose is primarily educative. Numedeon was founded by Dr. James M. Bower, his students and assistants in Caltech, interested in the way how Internet and serious games based on simulation could change the education.  Second Life in Education: An overview
AUTHOR: ALFREDO DE LA PRESA CRUZ . RECUPERACIÓN DE INFORMACIÓN  EN UN ENTORNO 3D: SECOND LIFE Now, we will review ActiveWorlds, from which the next picture is extracted: Second Life in Education: An overview
AUTHOR: ALFREDO DE LA PRESA CRUZ . RECUPERACIÓN DE INFORMACIÓN  EN UN ENTORNO 3D: SECOND LIFE ,[object Object],Second Life in Education: An overview
AUTHOR: ALFREDO DE LA PRESA CRUZ . RECUPERACIÓN DE INFORMACIÓN  EN UN ENTORNO 3D: SECOND LIFE The next example will be the Entropia Universe. This world is important because of the economy. The virtual objects that are acquired inside the Project Entropia have real value and any participant may, in any moment, withdraw his funds to make them real money accordingly to a change rate, discounting the commissions of the transaction. _Universe Entropia had an economic movement of about 360 millions of dollars  Second Life in Education: An overview
AUTOR: ALFREDO DE LA PRESA CRUZ . RECUPERACIÓN DE INFORMACIÓN  EN UN ENTORNO 3D: SECOND LIFE Picture of Project Entropía. It may be seen that the screen resolution is very good, which also makes this the most resource-consuming system seen until now. Second Life in Education: An overview
AUTHOR: ALFREDO DE LA PRESA CRUZ . RECUPERACIÓN DE INFORMACIÓN  EN UN ENTORNO 3D: SECOND LIFE ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],Second Life in Education: An overview
AUTOR: ALFREDO DE LA PRESA CRUZ . RECUPERACIÓN DE INFORMACIÓN  EN UN ENTORNO 3D: SECOND LIFE Picture of Second Life Second Life in Education: An overview
AUTHOR: ALFREDO DE LA PRESA CRUZ . RECUPERACIÓN DE INFORMACIÓN  EN UN ENTORNO 3D: SECOND LIFE And after this brief review, which are the advantages that the virtual world s could bring us? As an example of an attractive place, I include two pictures of the Second Life region of the Oregon University  Second Life in Education: An overview
AUTHOR: ALFREDO DE LA PRESA CRUZ . RECUPERACIÓN DE INFORMACIÓN  EN UN ENTORNO 3D: SECOND LIFE As an example of collective presence with real time interaction, we have this picture, taken during the meeting celebrated in march in the second life place of the SFEU (Now Scotland Colleges)  Second Life in Education: An overview
AUTHOR: ALFREDO DE LA PRESA CRUZ . RECUPERACIÓN DE INFORMACIÓN  EN UN ENTORNO 3D: SECOND LIFE Avatar in an emplyment event celebrated from 15 to 19 October, 2007  Second Life in Education: An overview
AUTHOR: ALFREDO DE LA PRESA CRUZ . RECUPERACIÓN DE INFORMACIÓN  EN UN ENTORNO 3D: SECOND LIFE Picture of the free whiteboard in Novatierra, in which it has been included the results of my research in Information Retrieval, that were presented in the IADIS Conference in Amsterdam.  Second Life in Education: An overview
AUTHOR: ALFREDO DE LA PRESA CRUZ . RECUPERACIÓN DE INFORMACIÓN  EN UN ENTORNO 3D: SECOND LIFE A picture about how to download, install and configure Sloodle, which is Second Life + Moodle. Second Life in Education: An overview
AUTHOR: ALFREDO DE LA PRESA CRUZ . RECUPERACIÓN DE INFORMACIÓN  EN UN ENTORNO 3D: SECOND LIFE As they explain it “ Who is  Wilde Cunningham? We are a group of 9 adults severely injured, exploring all Second Life, which truly frees us to make things that we could not do in real life. We participate as a group.  Second Life in Education: An overview
AUTHOR: ALFREDO DE LA PRESA CRUZ . RECUPERACIÓN DE INFORMACIÓN  EN UN ENTORNO 3D: SECOND LIFE In the following link:  http :// uiaccess.com / transcripts / wheeling_in_second_life.html  we can see the next question and answer: Do you think that Second Life is useful for people with mobility issues in real life? Yes, because you can make friends without having to go out and physically meeting with them. For Simon Stevens, that also suffers from brain  symptoms, it is equally important hte fact htat it makes the disabled people visible All of this is supported by Peter Abrahams in his paper:  “ Second Life is now too important not to be accessible”  Second Life in Education: An overview
AUTHOR: ALFREDO DE LA PRESA CRUZ . RECUPERACIÓN DE INFORMACIÓN  EN UN ENTORNO 3D: SECOND LIFE ,[object Object],[object Object],[object Object],Second Life in Education: An overview
AUTHOR: ALFREDO DE LA PRESA CRUZ . RECUPERACIÓN DE INFORMACIÓN  EN UN ENTORNO 3D: SECOND LIFE The search Problem:  The discovery of resources is the problem of knowing which things (avatars, items, sounds, etc) are in a world and how are they related to each other. As an example, when a web page is loaded that contains a link to other webpage, we have “discovered” that new page.  Furthermore, it is implied that the page is relevant for the page we are currently seeing. Without that links, the WWW would be useless. Similarly, the elements of a VR space should be able to link each others in such a way that the total is more than the summation of the parts. A mean to supply for this are the SLURLS, which are esentially the URLS for Second Life, and a mean to blend the web 2.0 with the Web 3D.  Second Life in Education: An overview
AUTHOR: ALFREDO DE LA PRESA CRUZ . RECUPERACIÓN DE INFORMACIÓN  EN UN ENTORNO 3D: SECOND LIFE Legal and Ethical issues . Logically in this environment you have all the problems derived from web 2D, existing the possibility in some worlds of a reservation that allows teenagers-for example Teen Life. It is noteworthy, though, that there are places where the whole world is PG-13, restraining the contents that could be present. There.com is an example of this kind of world.  Second Life in Education: An overview
AUTHOR: ALFREDO DE LA PRESA CRUZ . RECUPERACIÓN DE INFORMACIÓN  EN UN ENTORNO 3D: SECOND LIFE SECOND LIFE IN EDUCATION ¿What could Second Life be useful for? To make simulations, as an example we have the following picture of a region-museum that shows the space career history through the rockets and vehicles. This would be impossible in the real world without a massive injection of money, and perhaps more important, without a very considerable environmental impact.  Second Life in Education: An overview
AUTHOR: ALFREDO DE LA PRESA CRUZ . RECUPERACIÓN DE INFORMACIÓN  EN UN ENTORNO 3D: SECOND LIFE Second Life in Education: An overview
AUTHOR: ALFREDO DE LA PRESA CRUZ . RECUPERACIÓN DE INFORMACIÓN  EN UN ENTORNO 3D: SECOND LIFE Now we will see a selection of educative places in Second Life, First is the Cervantes Institute, which is an institutiondedicated to the teaching of Spanish as a second tongue  Second Life in Education: An overview
AUTHOR: ALFREDO DE LA PRESA CRUZ . RECUPERACIÓN DE INFORMACIÓN  EN UN ENTORNO 3D: SECOND LIFE Genome Island, with many practices and exercises about genetics. Second Life in Education: An overview
AUTHOR: ALFREDO DE LA PRESA CRUZ . RECUPERACIÓN DE INFORMACIÓN  EN UN ENTORNO 3D: SECOND LIFE In the virtual hospital, the avatar has to react before catastrophe, for example a pandemia.  Through some scenarios with different missions and directed towards a determined audience, the participants test their reaction skills, acquire new abilities and take decisions.  Second Life in Education: An overview
AUTHOR: ALFREDO DE LA PRESA CRUZ . RECUPERACIÓN DE INFORMACIÓN  EN UN ENTORNO 3D: SECOND LIFE Places dedicated to astronomy and physycs  Second Life in Education: An overview
AUTHOR: ALFREDO DE LA PRESA CRUZ . RECUPERACIÓN DE INFORMACIÓN  EN UN ENTORNO 3D: SECOND LIFE The Public Library of Cleveland is the third research library in the United States and the first in chess related objects collection. Besides, chess matches can be played in the boards provided for it.  Second Life in Education: An overview
AUTHOR: ALFREDO DE LA PRESA CRUZ . RECUPERACIÓN DE INFORMACIÓN  EN UN ENTORNO 3D: SECOND LIFE Science Island, this place shows us in an interactive way how science works. Second Life in Education: An overview
AUTHOR: ALFREDO DE LA PRESA CRUZ . RECUPERACIÓN DE INFORMACIÓN  EN UN ENTORNO 3D: SECOND LIFE It can be read: The sun gives light with a temperature of 9940 ºF (5504,44 ºC). The side of the moon that faces the sun absorbs its light, heating about  240 ºF (115,55 ºC). The warmed moon irradiates its heat back to space allowing its dark side to freeze to -280 ºF(-173.33 ºC). Nevertheless, a point in the surface of Earth does not change its temperature in 520 ºF (271,11 ºC) in a day. WHY?  Second Life in Education: An overview
AUTOR: ALFREDO DE LA PRESA CRUZ . RECUPERACIÓN DE INFORMACIÓN  EN UN ENTORNO 3D: SECOND LIFE Picture of the meteora region, that simulates meteorological phenomenons. Second Life in Education: An overview
AUTHOR: ALFREDO DE LA PRESA CRUZ . RECUPERACIÓN DE INFORMACIÓN  EN UN ENTORNO 3D: SECOND LIFE Pictures of the sun in different wavelengths Second Life in Education: An overview
AUTOR: ALFREDO DE LA PRESA CRUZ . RECUPERACIÓN DE INFORMACIÓN  EN UN ENTORNO 3D: SECOND LIFE The University of Nottingham is evaluating bullying throug a survey of an occupational psychologist to 50 avatars. The universities of Plymouth and Jefferson in the United States have developed a sexual education zone with movies about HIV and an stand with news about sexual health, as the picture shows: Second Life in Education: An overview
AUTOR: ALFREDO DE LA PRESA CRUZ . RECUPERACIÓN DE INFORMACIÓN  EN UN ENTORNO 3D: SECOND LIFE Cornell University is measuring the postraumatic stress impact in Irak war veterans while they take part in a virtual tour in the conflicts’ scenario. The London Imperial College has a complete version of their building of the real world Sir Alexander Fleming. It offers teleportation to the library and the theatre. Besides, it is performing an experiment to communicate complicated messages with regards health care as can be seen in the next picture:  Second Life in Education: An overview
AUTHOR: ALFREDO DE LA PRESA CRUZ . RECUPERACIÓN DE INFORMACIÓN  EN UN ENTORNO 3D: SECOND LIFE It is also used by some Spanish universities such as the university of Sevilla, which owns a place in the Osiris region where they meet and ise concepts such as Webquests. Second Life in Education: An overview
In the year 2007, a piece of news that explained that the University of Navarra (Spain) had a building in Second Life appeared.  It was decided to go there to watch it and take inspiration in their achievements. Instead of that, inspiration came from the fact that “Going there” was a particularly complex thing to do. It was then when it was learnt that all the things that are taken for granted in the “Web 2D” were not so simple in the “Web 3D”. There was not an address bar where entering the destination. Finally, after looking for it thoroughly, an SLURL was found, which is an URL for Second Life, and that corresponds always to the string: “http://slurl.com/secondlife/region/x/y/z “. Usability is an issue: A link list would be more useful than these “booklinks” RECUPERACIÓN DE INFORMACIÓN  EN UN ENTORNO 3D: SECOND LIFE Second Life in Education: An overview
Normally, the Page Rank and other algorithms have relied in the number of links going from and to a place to calculate the importance of the page. But in Second Life we have a graph with just nodes and no edges, which means the ways to calculate the importance of a given region are no longer good. Except if we found a way to fuse this “web 3D” with the Web 2.0 through the use of the aforementioned protocols.  For doing this, a tool has been developed and his performance has been tested against the internal search engine of Second Life.  Our tool allows to search by a tag and region and it could be easily implemented in any programming language. It has been developed both in PHP and Visual basic and has the following format: The data entries will be those of the region, the coordinates x, y, and z and a tag and a commentary. The data will then be stored in a MySQL database, and then a search can be performed by the criteria of the region or the tag or even the associated avatar RECUPERACIÓN DE INFORMACIÓN  EN UN ENTORNO 3D: SECOND LIFE Second Life in Education: An overview
Once the SLURLS are stored, they can be searched. The tool will provide us three different criteria for it: Either we can look for region, for tag or for avatar as can be seen in the following figure: We can search by region, by tag or by avatar and the results retrieved provide us with the link identifier, a link to the google powered map from where we can transport by pressing the “Teletransport button”, a link that opens the location in Second Life, the region, the tag, the comment and the avatar associated (In this case, we searched Brace Coral) RECUPERACIÓN DE INFORMACIÓN  EN UN ENTORNO 3D: SECOND LIFE Second Life in Education: An overview
Now, after having  generated both the intermediate link and the direct link, we have the following result: Besides, the links have been stored in a database with the tags and the comments. RECUPERACIÓN DE INFORMACIÓN  EN UN ENTORNO 3D: SECOND LIFE Second Life in Education: An overview
If we click the highlighted link in the previous slide, we finally teleport to our desired location RECUPERACIÓN DE INFORMACIÓN  EN UN ENTORNO 3D: SECOND LIFE Second Life in Education: An overview
Of course, after having this tool ready, the following step is his use for the evaluation of the quality of the internal search engine of Second Life. For that, 60 SLURLS from the bibliography were crawled and stored. After that, the procedure consisted of seeing if with these SLURLS we could reach our destinations. The technique that was followed was giving a value of 1 point if we reached our destination without any troubles and 0 if we did not reach it. As the maximum efficiency could be the 60 points we have an efficiency of about 90%. With the Search Engine of Second Life, the efficiency dropped drastically as it was about 65%. RECUPERACIÓN DE INFORMACIÓN  EN UN ENTORNO 3D: SECOND LIFE Second Life in Education: An overview
[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],RECUPERACIÓN DE INFORMACIÓN  EN UN ENTORNO 3D: SECOND LIFE Second Life in Education: An overview
CONCLUSIONS For all these reasons, we still feel confident that our approach to the fusion of the Web 2.0 and the web 3D is the best possible way to improve the search in the 3D Virtual Worlds. The reasons why we believe this approach could be better are exposed in [1]: The keywords that the region’s owner chooses are not normally those that the users would choose. The reason why a web 2.0 application works is that a large number of people are able to perform a common task. Our research has leaded us to believe that Linden Labs should include a feature to allow the navigation entering an address in the address bar. Besides this, the Search was one of the defining features of the Internet revolution. It is not by chance that the biggest of Microsoft rivals nowadays is Google and that the company has been actively seeking to buy Yahoo. If something similar happens in the Web 3D, a need for new algorithms that are not Graph-Based must be developed. We have not developed yet a system for calculating the relevance of a given region but it is clearly a possible path to follow. RECUPERACIÓN DE INFORMACIÓN  EN UN ENTORNO 3D: SECOND LIFE Second Life in Education: An overview
REFERENCES Arthur, L. Taylor, 2007,  Collective Tagging of places in the multi-user virtual environment of Second Life . School of Information and Library Science Rymaszewki et al, 2007.  La guía oficial de Second Life (Second Life's Official guide) ,  Anaya Multimedia (Authorized translation from English Language by Sams Publishing) Alberto García Serrano and Ruth Martínez, 2007.  Exprime Second Life (Squeeze Second Life),  Anaya Multimedia Ben Schneiderman and Catherine Plaisant 2004,  Designing the user interface, chapters 6 and 10.  Addison-Wesley. Adrienne J Gauthier, 2007,  Astronomy in Second Life: A user’s perspective,   Communicating Astronomy with the Public Journal, Volume 1, p.32 Cynthia Calogne and Jeff Hiles, 2007  Blended Realities: A virtual tour of education in Second Life.  Technology, college and community worldwide online conference proceedings. Tim, O’Reilly, 2007  What is Web 2.0: Design patterns and business models for the next generation of software , Communications & Strategies, No. 1, p. 17.  Alexander, Bryan, 2006,  Web 2.0: A New Wave of Innovation for Teaching and Learning?,  Educause Review v41, n2 p33-34, 36, 38, 40, 42, 44 Gottfried Vossen and Stephan Hagemann, 2007,  Unleashing web 2.0: from concepts to creativity.  ACM Paul Anderson, 2007,  What is Web 2.0? Ideas, Technologies and Implications for Education , JISC Technology and Standard Watch RECUPERACIÓN DE INFORMACIÓN  EN UN ENTORNO 3D: SECOND LIFE Second Life in Education: An overview

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Presentation Second Life

  • 1. Second Life in Education: An overview AUTHOR: ALFREDO DE LA PRESA CRUZ .
  • 2. AUTHOR: ALFREDO DE LA PRESA CRUZ . RECUPERACIÓN DE INFORMACIÓN EN UN ENTORNO 3D: SECOND LIFE I. THE VIRTUAL WORLDS: STATE OF THE ART A virtual world is a computer simulated environment designed for its inhabitants to reside and use it. This is performed through the use of graphic representations -3D, 2D or text based representations called avatars. Since a Virtual World is a very vague and inclusive concept, it might be divide into two big subgroups: Massively multiplayer online role-playing games or MMORPGs where the user that interprets an specific character is a main feature of the game. Massively multiplayer online real-life/rogue-like games or MMORLGs, where the user may edit and alter its avatar appearance at will, allowing them to play a more dynamic role or different roles. Following, there is a set of virtual worlds of the second kind. Second Life in Education: An overview
  • 3. AUTHOR: ALFREDO DE LA PRESA CRUZ . RECUPERACIÓN DE INFORMACIÓN EN UN ENTORNO 3D: SECOND LIFE Second Life in Education: An overview Second Life Mokitown Entropia Universe Planet Cazmo Minyanland Dizziwood Playdo Meez Disney’s Toontown Pixel City Kaneva Cybertown Open Sim Hello Kitty MyCoke Open Croquet Hipihi Club Penguin Multiverse Habbo Hotel Barbie Girls MTV Gaia Awomo Moove Forterra Systems Activeworlds
  • 4. AUTOR: ALFREDO DE LA PRESA CRUZ . RECUPERACIÓN DE INFORMACIÓN EN UN ENTORNO 3D: SECOND LIFE Second Life in Education: An overview Zwinky VpChat Zed City Voy Plaza Yohoho ! Puzzle Voodoo Chat Worlds.com Virtual Magic Kingdom Whirled Traveler Whyville TowerChat Whyrobbierocks There VZones The Sims Online Vside The Palace
  • 5. AUTHOR: ALFREDO DE LA PRESA CRUZ . RECUPERACIÓN DE INFORMACIÓN EN UN ENTORNO 3D: SECOND LIFE We are going to examine some of them in some deep to see which is the state of the art with respect to the virtual worlds. Our first virtual world examined will be There.com, from which the following picture has been extracted: Second Life in Education: An overview
  • 6. AUTHOR: ALFREDO DE LA PRESA CRUZ . RECUPERACIÓN DE INFORMACIÓN EN UN ENTORNO 3D: SECOND LIFE There.com is a 3D virtual world created by Will Harvey and Jeffrey Ventrella. Its release was in October 2003. In June 2004, it went through big changes. It contains 12 main islands and a number of other smaller islands, there are 500000 members and many community places, including business. The majority of the items such as surniture are designed to be used inside the homes. The economy uses Therebucks, virtual money with real value in the real world. Therebucks can be bought directly from There, from other members or from third parts –”banks” online, that usually offer competitive change rates. This world supports –only partially-Windows Vista. The fact that it is a PG World is viewed by some as a sign of the childish the project is, though others think that is precisely that which makes thing to be less bothered by “mature content”. Second Life in Education: An overview
  • 7. AUTHOR: ALFREDO DE LA PRESA CRUZ . RECUPERACIÓN DE INFORMACIÓN EN UN ENTORNO 3D: SECOND LIFE The next virtual world that we will see, will be Whyville, from which a picture us included: Second Life in Education: An overview
  • 8. AUTHOR: ALFREDO DE LA PRESA CRUZ . RECUPERACIÓN DE INFORMACIÓN EN UN ENTORNO 3D: SECOND LIFE Whyville is an educational place in Internet directed towards prescholars and teenagers. It was created originally as a support for the weekly article on science on the LA Tiems, its goal is to engage its users in the learning of a wide range of sbjects, from science and business to art and geography. It has about 2,8 millions players base. It has been notably successful in atracting young women. As a virtual world based on simulation, the environment users engage in games sponsored by a wide spectrum of governmental, non-lucrative and corporative entities. It was launched in 1999, by Numedeon, Inc.and it was one of the first virtual worlds for children and it is the only virtual world which purpose is primarily educative. Numedeon was founded by Dr. James M. Bower, his students and assistants in Caltech, interested in the way how Internet and serious games based on simulation could change the education. Second Life in Education: An overview
  • 9. AUTHOR: ALFREDO DE LA PRESA CRUZ . RECUPERACIÓN DE INFORMACIÓN EN UN ENTORNO 3D: SECOND LIFE Now, we will review ActiveWorlds, from which the next picture is extracted: Second Life in Education: An overview
  • 10.
  • 11. AUTHOR: ALFREDO DE LA PRESA CRUZ . RECUPERACIÓN DE INFORMACIÓN EN UN ENTORNO 3D: SECOND LIFE The next example will be the Entropia Universe. This world is important because of the economy. The virtual objects that are acquired inside the Project Entropia have real value and any participant may, in any moment, withdraw his funds to make them real money accordingly to a change rate, discounting the commissions of the transaction. _Universe Entropia had an economic movement of about 360 millions of dollars Second Life in Education: An overview
  • 12. AUTOR: ALFREDO DE LA PRESA CRUZ . RECUPERACIÓN DE INFORMACIÓN EN UN ENTORNO 3D: SECOND LIFE Picture of Project Entropía. It may be seen that the screen resolution is very good, which also makes this the most resource-consuming system seen until now. Second Life in Education: An overview
  • 13.
  • 14. AUTOR: ALFREDO DE LA PRESA CRUZ . RECUPERACIÓN DE INFORMACIÓN EN UN ENTORNO 3D: SECOND LIFE Picture of Second Life Second Life in Education: An overview
  • 15. AUTHOR: ALFREDO DE LA PRESA CRUZ . RECUPERACIÓN DE INFORMACIÓN EN UN ENTORNO 3D: SECOND LIFE And after this brief review, which are the advantages that the virtual world s could bring us? As an example of an attractive place, I include two pictures of the Second Life region of the Oregon University Second Life in Education: An overview
  • 16. AUTHOR: ALFREDO DE LA PRESA CRUZ . RECUPERACIÓN DE INFORMACIÓN EN UN ENTORNO 3D: SECOND LIFE As an example of collective presence with real time interaction, we have this picture, taken during the meeting celebrated in march in the second life place of the SFEU (Now Scotland Colleges) Second Life in Education: An overview
  • 17. AUTHOR: ALFREDO DE LA PRESA CRUZ . RECUPERACIÓN DE INFORMACIÓN EN UN ENTORNO 3D: SECOND LIFE Avatar in an emplyment event celebrated from 15 to 19 October, 2007 Second Life in Education: An overview
  • 18. AUTHOR: ALFREDO DE LA PRESA CRUZ . RECUPERACIÓN DE INFORMACIÓN EN UN ENTORNO 3D: SECOND LIFE Picture of the free whiteboard in Novatierra, in which it has been included the results of my research in Information Retrieval, that were presented in the IADIS Conference in Amsterdam. Second Life in Education: An overview
  • 19. AUTHOR: ALFREDO DE LA PRESA CRUZ . RECUPERACIÓN DE INFORMACIÓN EN UN ENTORNO 3D: SECOND LIFE A picture about how to download, install and configure Sloodle, which is Second Life + Moodle. Second Life in Education: An overview
  • 20. AUTHOR: ALFREDO DE LA PRESA CRUZ . RECUPERACIÓN DE INFORMACIÓN EN UN ENTORNO 3D: SECOND LIFE As they explain it “ Who is Wilde Cunningham? We are a group of 9 adults severely injured, exploring all Second Life, which truly frees us to make things that we could not do in real life. We participate as a group. Second Life in Education: An overview
  • 21. AUTHOR: ALFREDO DE LA PRESA CRUZ . RECUPERACIÓN DE INFORMACIÓN EN UN ENTORNO 3D: SECOND LIFE In the following link: http :// uiaccess.com / transcripts / wheeling_in_second_life.html we can see the next question and answer: Do you think that Second Life is useful for people with mobility issues in real life? Yes, because you can make friends without having to go out and physically meeting with them. For Simon Stevens, that also suffers from brain symptoms, it is equally important hte fact htat it makes the disabled people visible All of this is supported by Peter Abrahams in his paper: “ Second Life is now too important not to be accessible” Second Life in Education: An overview
  • 22.
  • 23. AUTHOR: ALFREDO DE LA PRESA CRUZ . RECUPERACIÓN DE INFORMACIÓN EN UN ENTORNO 3D: SECOND LIFE The search Problem: The discovery of resources is the problem of knowing which things (avatars, items, sounds, etc) are in a world and how are they related to each other. As an example, when a web page is loaded that contains a link to other webpage, we have “discovered” that new page. Furthermore, it is implied that the page is relevant for the page we are currently seeing. Without that links, the WWW would be useless. Similarly, the elements of a VR space should be able to link each others in such a way that the total is more than the summation of the parts. A mean to supply for this are the SLURLS, which are esentially the URLS for Second Life, and a mean to blend the web 2.0 with the Web 3D. Second Life in Education: An overview
  • 24. AUTHOR: ALFREDO DE LA PRESA CRUZ . RECUPERACIÓN DE INFORMACIÓN EN UN ENTORNO 3D: SECOND LIFE Legal and Ethical issues . Logically in this environment you have all the problems derived from web 2D, existing the possibility in some worlds of a reservation that allows teenagers-for example Teen Life. It is noteworthy, though, that there are places where the whole world is PG-13, restraining the contents that could be present. There.com is an example of this kind of world. Second Life in Education: An overview
  • 25. AUTHOR: ALFREDO DE LA PRESA CRUZ . RECUPERACIÓN DE INFORMACIÓN EN UN ENTORNO 3D: SECOND LIFE SECOND LIFE IN EDUCATION ¿What could Second Life be useful for? To make simulations, as an example we have the following picture of a region-museum that shows the space career history through the rockets and vehicles. This would be impossible in the real world without a massive injection of money, and perhaps more important, without a very considerable environmental impact. Second Life in Education: An overview
  • 26. AUTHOR: ALFREDO DE LA PRESA CRUZ . RECUPERACIÓN DE INFORMACIÓN EN UN ENTORNO 3D: SECOND LIFE Second Life in Education: An overview
  • 27. AUTHOR: ALFREDO DE LA PRESA CRUZ . RECUPERACIÓN DE INFORMACIÓN EN UN ENTORNO 3D: SECOND LIFE Now we will see a selection of educative places in Second Life, First is the Cervantes Institute, which is an institutiondedicated to the teaching of Spanish as a second tongue Second Life in Education: An overview
  • 28. AUTHOR: ALFREDO DE LA PRESA CRUZ . RECUPERACIÓN DE INFORMACIÓN EN UN ENTORNO 3D: SECOND LIFE Genome Island, with many practices and exercises about genetics. Second Life in Education: An overview
  • 29. AUTHOR: ALFREDO DE LA PRESA CRUZ . RECUPERACIÓN DE INFORMACIÓN EN UN ENTORNO 3D: SECOND LIFE In the virtual hospital, the avatar has to react before catastrophe, for example a pandemia. Through some scenarios with different missions and directed towards a determined audience, the participants test their reaction skills, acquire new abilities and take decisions. Second Life in Education: An overview
  • 30. AUTHOR: ALFREDO DE LA PRESA CRUZ . RECUPERACIÓN DE INFORMACIÓN EN UN ENTORNO 3D: SECOND LIFE Places dedicated to astronomy and physycs Second Life in Education: An overview
  • 31. AUTHOR: ALFREDO DE LA PRESA CRUZ . RECUPERACIÓN DE INFORMACIÓN EN UN ENTORNO 3D: SECOND LIFE The Public Library of Cleveland is the third research library in the United States and the first in chess related objects collection. Besides, chess matches can be played in the boards provided for it. Second Life in Education: An overview
  • 32. AUTHOR: ALFREDO DE LA PRESA CRUZ . RECUPERACIÓN DE INFORMACIÓN EN UN ENTORNO 3D: SECOND LIFE Science Island, this place shows us in an interactive way how science works. Second Life in Education: An overview
  • 33. AUTHOR: ALFREDO DE LA PRESA CRUZ . RECUPERACIÓN DE INFORMACIÓN EN UN ENTORNO 3D: SECOND LIFE It can be read: The sun gives light with a temperature of 9940 ºF (5504,44 ºC). The side of the moon that faces the sun absorbs its light, heating about 240 ºF (115,55 ºC). The warmed moon irradiates its heat back to space allowing its dark side to freeze to -280 ºF(-173.33 ºC). Nevertheless, a point in the surface of Earth does not change its temperature in 520 ºF (271,11 ºC) in a day. WHY? Second Life in Education: An overview
  • 34. AUTOR: ALFREDO DE LA PRESA CRUZ . RECUPERACIÓN DE INFORMACIÓN EN UN ENTORNO 3D: SECOND LIFE Picture of the meteora region, that simulates meteorological phenomenons. Second Life in Education: An overview
  • 35. AUTHOR: ALFREDO DE LA PRESA CRUZ . RECUPERACIÓN DE INFORMACIÓN EN UN ENTORNO 3D: SECOND LIFE Pictures of the sun in different wavelengths Second Life in Education: An overview
  • 36. AUTOR: ALFREDO DE LA PRESA CRUZ . RECUPERACIÓN DE INFORMACIÓN EN UN ENTORNO 3D: SECOND LIFE The University of Nottingham is evaluating bullying throug a survey of an occupational psychologist to 50 avatars. The universities of Plymouth and Jefferson in the United States have developed a sexual education zone with movies about HIV and an stand with news about sexual health, as the picture shows: Second Life in Education: An overview
  • 37. AUTOR: ALFREDO DE LA PRESA CRUZ . RECUPERACIÓN DE INFORMACIÓN EN UN ENTORNO 3D: SECOND LIFE Cornell University is measuring the postraumatic stress impact in Irak war veterans while they take part in a virtual tour in the conflicts’ scenario. The London Imperial College has a complete version of their building of the real world Sir Alexander Fleming. It offers teleportation to the library and the theatre. Besides, it is performing an experiment to communicate complicated messages with regards health care as can be seen in the next picture: Second Life in Education: An overview
  • 38. AUTHOR: ALFREDO DE LA PRESA CRUZ . RECUPERACIÓN DE INFORMACIÓN EN UN ENTORNO 3D: SECOND LIFE It is also used by some Spanish universities such as the university of Sevilla, which owns a place in the Osiris region where they meet and ise concepts such as Webquests. Second Life in Education: An overview
  • 39. In the year 2007, a piece of news that explained that the University of Navarra (Spain) had a building in Second Life appeared. It was decided to go there to watch it and take inspiration in their achievements. Instead of that, inspiration came from the fact that “Going there” was a particularly complex thing to do. It was then when it was learnt that all the things that are taken for granted in the “Web 2D” were not so simple in the “Web 3D”. There was not an address bar where entering the destination. Finally, after looking for it thoroughly, an SLURL was found, which is an URL for Second Life, and that corresponds always to the string: “http://slurl.com/secondlife/region/x/y/z “. Usability is an issue: A link list would be more useful than these “booklinks” RECUPERACIÓN DE INFORMACIÓN EN UN ENTORNO 3D: SECOND LIFE Second Life in Education: An overview
  • 40. Normally, the Page Rank and other algorithms have relied in the number of links going from and to a place to calculate the importance of the page. But in Second Life we have a graph with just nodes and no edges, which means the ways to calculate the importance of a given region are no longer good. Except if we found a way to fuse this “web 3D” with the Web 2.0 through the use of the aforementioned protocols. For doing this, a tool has been developed and his performance has been tested against the internal search engine of Second Life. Our tool allows to search by a tag and region and it could be easily implemented in any programming language. It has been developed both in PHP and Visual basic and has the following format: The data entries will be those of the region, the coordinates x, y, and z and a tag and a commentary. The data will then be stored in a MySQL database, and then a search can be performed by the criteria of the region or the tag or even the associated avatar RECUPERACIÓN DE INFORMACIÓN EN UN ENTORNO 3D: SECOND LIFE Second Life in Education: An overview
  • 41. Once the SLURLS are stored, they can be searched. The tool will provide us three different criteria for it: Either we can look for region, for tag or for avatar as can be seen in the following figure: We can search by region, by tag or by avatar and the results retrieved provide us with the link identifier, a link to the google powered map from where we can transport by pressing the “Teletransport button”, a link that opens the location in Second Life, the region, the tag, the comment and the avatar associated (In this case, we searched Brace Coral) RECUPERACIÓN DE INFORMACIÓN EN UN ENTORNO 3D: SECOND LIFE Second Life in Education: An overview
  • 42. Now, after having generated both the intermediate link and the direct link, we have the following result: Besides, the links have been stored in a database with the tags and the comments. RECUPERACIÓN DE INFORMACIÓN EN UN ENTORNO 3D: SECOND LIFE Second Life in Education: An overview
  • 43. If we click the highlighted link in the previous slide, we finally teleport to our desired location RECUPERACIÓN DE INFORMACIÓN EN UN ENTORNO 3D: SECOND LIFE Second Life in Education: An overview
  • 44. Of course, after having this tool ready, the following step is his use for the evaluation of the quality of the internal search engine of Second Life. For that, 60 SLURLS from the bibliography were crawled and stored. After that, the procedure consisted of seeing if with these SLURLS we could reach our destinations. The technique that was followed was giving a value of 1 point if we reached our destination without any troubles and 0 if we did not reach it. As the maximum efficiency could be the 60 points we have an efficiency of about 90%. With the Search Engine of Second Life, the efficiency dropped drastically as it was about 65%. RECUPERACIÓN DE INFORMACIÓN EN UN ENTORNO 3D: SECOND LIFE Second Life in Education: An overview
  • 45.
  • 46. CONCLUSIONS For all these reasons, we still feel confident that our approach to the fusion of the Web 2.0 and the web 3D is the best possible way to improve the search in the 3D Virtual Worlds. The reasons why we believe this approach could be better are exposed in [1]: The keywords that the region’s owner chooses are not normally those that the users would choose. The reason why a web 2.0 application works is that a large number of people are able to perform a common task. Our research has leaded us to believe that Linden Labs should include a feature to allow the navigation entering an address in the address bar. Besides this, the Search was one of the defining features of the Internet revolution. It is not by chance that the biggest of Microsoft rivals nowadays is Google and that the company has been actively seeking to buy Yahoo. If something similar happens in the Web 3D, a need for new algorithms that are not Graph-Based must be developed. We have not developed yet a system for calculating the relevance of a given region but it is clearly a possible path to follow. RECUPERACIÓN DE INFORMACIÓN EN UN ENTORNO 3D: SECOND LIFE Second Life in Education: An overview
  • 47. REFERENCES Arthur, L. Taylor, 2007, Collective Tagging of places in the multi-user virtual environment of Second Life . School of Information and Library Science Rymaszewki et al, 2007. La guía oficial de Second Life (Second Life's Official guide) , Anaya Multimedia (Authorized translation from English Language by Sams Publishing) Alberto García Serrano and Ruth Martínez, 2007. Exprime Second Life (Squeeze Second Life), Anaya Multimedia Ben Schneiderman and Catherine Plaisant 2004, Designing the user interface, chapters 6 and 10. Addison-Wesley. Adrienne J Gauthier, 2007, Astronomy in Second Life: A user’s perspective, Communicating Astronomy with the Public Journal, Volume 1, p.32 Cynthia Calogne and Jeff Hiles, 2007 Blended Realities: A virtual tour of education in Second Life. Technology, college and community worldwide online conference proceedings. Tim, O’Reilly, 2007 What is Web 2.0: Design patterns and business models for the next generation of software , Communications & Strategies, No. 1, p. 17. Alexander, Bryan, 2006, Web 2.0: A New Wave of Innovation for Teaching and Learning?, Educause Review v41, n2 p33-34, 36, 38, 40, 42, 44 Gottfried Vossen and Stephan Hagemann, 2007, Unleashing web 2.0: from concepts to creativity. ACM Paul Anderson, 2007, What is Web 2.0? Ideas, Technologies and Implications for Education , JISC Technology and Standard Watch RECUPERACIÓN DE INFORMACIÓN EN UN ENTORNO 3D: SECOND LIFE Second Life in Education: An overview