1. quolc です。

2. 自己紹介 ・quolc（くおるく） ・筑波大学附属駒場高等学校３年 ・受験生 ・情報,化学,天文学,MediaArt,etc

3. 近況報告 ・SuperCon ： 準優勝 ・SSH研究発表会 ： 予選落ち ・化学グランプリ ： 京都行きます ・東大模試うけてきました。

4. Construction and Utilization ofNintendo DSPeer-to-Peer System Senior High School at Komaba, University of Tsukuba id:rusted_coil id:quolc id:shuyoko

5. Index 1. Purpose of the Project 2. Project Summary 3. DSChord Algorithm 4. Practical Example: DS Drawr 5. Conclusion

6. Nintendo DS

7. Wide Distribution More than 100 million in the world!

8. High Performance 231 MIPS ×2≈ Power PC G3 231MIPS × 50000 DS ≈ 11.6 TFLOPS ≈ Deep Blue (IBM) ARM9 Processor (ARM Ltd)

9. Use DS Resource Our Purpose = Verify DS as a Mobile Device Wi-fi Connection

10. Index 1. Purpose of the Project 2. Project Summary 3. DSChord Algorithm 4. Practical Example: DS Drawr 5. Conclusion

11. Construct DS Net Peer-to-Peer Network

12. PC/DS Hybrid Net PC-Cloud Middle Layer for FW/NAT Traverse

13. Project Summary 1. Construct PC-to-PC Cloud Network 2. Use PC-Cloud to make DS-to-DS Network

14. Index 1. Purpose of the Project 2. Project Summary 3. DSChord Algorithm 4. Practical Example: DS Drawr 5. Conclusion

15. Algorithm for PC-Cloud Our choice is… There is a lot of cloud algorithms… 1. Process Speed ・Server-Client Model ・Napstar Model ・Winny Model ・Gnutella Model e.t.c. 2 Key Point Chord 2. Reliability

16. DSChord Algorithm Chord : MIT, 2001 Improvement DSChord (New Algorithm)

17. DSChord Algorithm 1. Give ID(Hash) for All Data and Nodes 0001 1010 0100 1100 2. Allocate them on a Circular Topology. 0010 0110 0000 0101 3. Super Nodes (PCs) Automatically Maintain Network and Share Data 0011 1111 1101 1001

18. DSChord Algorithm (Detail) Chord = Distributed Hash Table (DataBase) Algorithm Detail Successor / Predecessor List FingerTable Maintenance : Improved! Operation Order = O(log N) : Very Fast! Multiset function for search : New Idea!

19. Index 1. Purpose of the Project 2. Project Summary 3. DSChord Algorithm 4. Practical Example: DS Drawr 5. Conclusion

20. DS Drawr Cat Cat

21. Index 1. Purpose of the Project 2. Project Summary 3. DSChord Algorithm 4. Practical Example: DS Drawr 5. Conclusion

22. Conclusion ✓ Construct DS Network ✓ Utilize DS Network ✓ Verify DS as a Mobile Device ▵ Use DS Resource

23. Prospect Peer-to-Peer Technology Grid Computing Platform For Medicine / Public Service Entertainment Platform For Game / Multimedia, etc

24. Thank You!