Dong-Po Deng

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Disaster response systems are designed to facilitate decision-making based on large amounts of heterogeneous geographic information. Most geographic information systems (GISs) use relational databases to manipulate information efficiently. However, they suffer from interoperability issues because they need to expend significant effort mapping heterogeneous(More)
More and more users are contributing and sharing more and more contents on the Web via the use of content hosting sites and social media services. These user-generated contents are tagged with terms characterizing the contents from the users' perspectives. Massive collections of tagged photos in popular photo hosting sites are well known for their richness(More)
In Taiwan, earthquakes have long been recognized as a major cause oflandslides that are wide spread by floods brought by typhoons followed. Distinguishingbetween landslide spatial patterns in different disturbance regimes is fundamental fordisaster monitoring, management, and land-cover restoration. To circumscribe landslides,this study adopts the(More)
Geography Markup Language (GML) is an XML-based language for the markup, storage, and exchange of geospatial data. It provides a rich geospatial vocabulary and allows flexible document structure. However, GML documents are usually large and complicated in structure. Existing techniques for XML document processing, either streaming-based or memory-based, may(More)
The emergence of social media enables people to interact with others on the web in ways that are media-rich ("updates" or "posts" can be text, photo, audio, video, etc), time-shifted (correspondence need not happen at once or within a pre-defined time frame), and social in nature. By utilizing social media, citizen science projects can potentially engage(More)
The reach of dominating social media like Facebook and Twitter in the current population is enormous, and these media have long been leveraged for diverse applications. In particular, for some citizen science projects, existing social media increasingly become platforms on which participants interact and contribute. These user contributions, often termed(More)
This paper describes our experiences in developing a Linking Open Data (LOD) resource for Taiwanese Geographic Names (LOD TGN), extracting Taiwanese place names found in Facebook posts, and linking such place names to the entries in LOD TGN. The aim of this study is to enhance the semantics of User-Generated Content (UGC) through the use of LOD resources,(More)
Narrative descriptions about populated places are very common in ethnographies. In old articles and books on the migration history of Taiwan aborigines, for example, narrative sentences are the norms for describing the locations of aboriginal settlements. These narratives constitute a form of geospatial knowledge, and there is a need to develop knowledge(More)
The initiative of our research is to build a geo-writable web, using open source technologies for people's participation online. This paper is the key underpinning for the new emerging trend “online community mapping” as a conceptualized model combined with information/computer science, geography, and sociology, which we have proposed recently. In(More)
OpenStreetMap is an open and collaborative project with thousands of people contributing GPS traces and other data into the making of a global map of places and networks. It is open in the sense that everyone can contribute to the project, and results from the project are free for everyone to reuse. This is contrary to traditional cartography where often a(More)
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