Wireless and Mobile Access to Digital Libraries

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Wireless and Mobile Access to Digital Libraries. Sang-goo Lee School of Computer Science and Engineering Seoul National University Seoul, Korea. Worldwide Market. Year 2000 to year 2007 subscribers: 530 million to 1,370 million service revenue: $295 billion to $521 billion - PowerPoint PPT Presentation


<ul><li><p>Wireless and Mobile Access to Digital LibrariesSang-goo LeeSchool of Computer Science and EngineeringSeoul National UniversitySeoul, Korea</p></li><li><p>Worldwide MarketYear 2000 to year 2007subscribers: 530 million to 1,370 millionservice revenue: $295 billion to $521 billionBetter technologies3G services by 2003 (Europe and Asia)Protocols (eg, WAP) to include graphics and animationsIntelligent and powerful mobile devices</p></li><li><p>Korean MarketOne of the fastest growing marketsEarly adapters of new technologiesLifestyles that demand ubiquitos/ untethered communications</p></li><li><p>A typical day of Youngsoo7:00 Wake up8:00 Leave home8:10 Get on bus8:20 Transfer to subway8:50 - 14:00 3 classes, lunch, and pools14:15 Get on subway14:30 Transfer to another line14:50 ESL class 16:45 Get on bus17:00 Math Tutoring19:00 Get on bus19:35 Dinner and Karaoke with girlfriend21:30 Get on bus/subway22:05 Back home160 minutes (2:40) on the road!</p></li><li><p>Korea-US CollaborationKorean Companies</p></li><li><p>HANULA mediator-based DL systemIntegrate distributed information sources to create one single virtual library for the userQuery RecyclingVirtual Index ManagerResult Set ManagerResult Cache Manager</p></li><li><p>Evolving Hierarchical Topic StructureSemi-supervised clustering of documentsHierarchy reorganization/ restructuring operationsClustering areaCdCaCbCcCe=0.8Fuzzy concept subsumption matrixSemi-supervisedclusteringCdCaCbCeCcSub-hierarchy</p></li><li><p>CatalogStopA digital catalog library system for catalog sharing and standardizationExtended Catalog ModelCatalogs the hierarchy</p></li><li><p>PDA Data ManagementAn embedded DB engine for PDA (JTELs CellVic)main memory database managementsupport for PDA-specific functionssmall footprintsync management</p></li><li><p>Gestational DiabetesAnytime, anywhere telemedicineDiabetes + pregnancy =&gt; close monitoring</p></li><li><p>Query by TaxonomyQuery/navigational characteristics of mobile interactionPersonalized and evolving taxonomy</p></li><li><p>SummaryWireless access to digital library is importantQBT and other relevant problems/ issues are interestingIdeal area for Korea-US collaboration</p></li></ul>