Open seminar series 3: Mapping, Geovisualization and OpenStreetMapDongpo Deng
This is the slides presented at Open Seminar Series in Institute of Information Science, Academia Sinica. The seminar information information was posted at
http://registrano.com/events/b05266
Open seminar series 3: Mapping, Geovisualization and OpenStreetMapDongpo Deng
This is the slides presented at Open Seminar Series in Institute of Information Science, Academia Sinica. The seminar information information was posted at
http://registrano.com/events/b05266
This document summarizes Dongpo Deng's thank you note for volunteers who helped with State of the Map Taiwan 2013 conference. It lists the names of volunteers who helped with various tasks like venue operations, website creation, scheduling, and accounting. It also shows growth in OpenStreetMap data and top contributors from 2012-2013. Finally, it briefly outlines some OSM community mapping events in Taiwan during 2013, including mapping parties in Hualien and Kaohsiung, contributing to events like COSCUP and DrupalCamp, and mappers participating in protests against a trade agreement.
The One and Many Maps: Participatory and Temporal Diversities in OpenStreetMapDongpo Deng
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 central authority controls the making of the map and its release. Is OpenStreetMap more democratic, and in what sense? Is OpenStreetMap more relevant to the mass, and how can we judge?
We define and use several metrics to measure temporal properties of dened areas in OpenStreetMap, and to sample modes of participation in these areas. These metrics are used to graph the datasets representing the current OpenStreetMap so as to reveal unevenness in user participation and data temporality. We use the dataset about Taiwan as a test case to observe participatory and temporal diversities among different areas of Taiwan in OpenStreetMap.
The document discusses how crowdsourced data from platforms like OpenStreetMap, Safecast, and social media can be used to address the impacts of climate change. OpenStreetMap allows anyone to collaboratively map the world and proved useful in mapping areas affected by the 2010 Haiti earthquake within weeks. Safecast crowdsources radiation level data with mobile devices and geiger counters to empower people with information. Social media platforms like Flickr have also been used to track phenomena like changing cherry blossom seasons that may be influenced by climate change. The document argues these informal sources can help collect scientific data and monitor climate impacts in a structured way.
20130905_Feng_Chia_GIS_center_geospatial_ontologyDongpo Deng
The document discusses ontologies, which are formal specifications of conceptualizations that provide shared definitions of concepts in a domain and the relationships between them. It provides definitions of ontology from different perspectives including philosophy, computer science, and geospatial domains. It describes some challenges in developing geospatial ontologies due to the complex, unstructured, and context-dependent nature of geographic concepts. Examples of existing geospatial ontologies and vocabularies are also presented.
Dongpo Deng attended the Linked Data on the Web 2014 workshop and WWW 2014 conference in Seoul from April 7-12. Some key highlights included:
- He stayed in a reasonably priced hotel close to the metro that had small rooms and noise until 2pm.
- At LDOW 2014 he attended sessions on integration, exploration, and applications of linked data that featured talks on topics like RML mappings, DBpedia exploration, and crowdsourced sensor data.
- WWW 2014 had over 600 submissions across 11 areas with a 13% acceptance rate. The keynotes covered graph mining, organizing the digital world, and taming the web.
- Dongpo attended talks on crowds
From Structured Data to Linked Open Governmental DataDongpo Deng
This document discusses linked open data and publishing government data as linked open data. It provides an overview of linked open data principles and standards like URIs, RDF, and SPARQL. It also shares lessons learned from linked open data implementations by governments worldwide and the benefits of exposing data to larger audiences through linked open data. Key challenges include selecting appropriate ontologies and establishing links between data from different sources and domains.
The European Data Forum 2016 discussed the European Commission's 2012 agenda to create a Connected Digital Single Market and promote Open Data, Linked Data, and Big Data to develop the EU's Data Economy. The forum explored how data and digital technologies can support the Digital Economy and Society and help small- and medium-sized enterprises utilize data.
This document discusses data-driven smart governance and describes how governments can utilize data, information, and intelligence through interaction, integration, and influence. It provides examples of how open data, data standards, semantic technologies, machine learning, and public-private partnerships can help power more data-driven decision making and transparent, responsive government services.
The methods and practices of Linked Open DataDongpo Deng
This document discusses various topics related to linked open data and semantic web technologies for agriculture data. It provides examples of Taiwan's open agriculture datasets published as linked data online, and how standards like schema.org can be used to markup recipe data on the web. It also summarizes efforts to build applications and services that integrate agriculture data from different sources using semantic web technologies.
Construction and reuse of linked traceable agricultural product records - An ...Dongpo Deng
This document discusses linking open agricultural product traceability data from Taiwan to create a linked data cloud. It describes the Traceable Agricultural Product (TAP) data format, processing the data to extract and standardize crop names, geocode locations, and map the data to an Agriculture Activity Ontology. SPARQL endpoints were created to query linked data from farms, stores, and restaurants using TAP data. A Chrome extension was developed for federated SPARQL queries across these datasets.
Crowdsourced mapping for open collaboration: A story of Taiwan so farDongpo Deng
The slides presented in State of the Map Japan 2014 mainly introduced the development status of the OSM Taiwan community, and the idea of community mapping is implemented in Taiwan.
Toward Next Generation of Gazetteer: Utilizing GeoSPARQL For Developing Link...Dongpo Deng
This document summarizes Dongpo Deng's presentation on developing linked geoname data using GeoSPARQL. It discusses transforming a Taiwanese place name dataset into RDF triples using a place name ontology. A linked data server and GeoSPARQL endpoint were created to serve and query the linked place name data. Spatial and temporal SPARQL queries over the data were demonstrated. The linked place names can be used as controlled vocabularies and are connected to other datasets like Geonames.org.
This document summarizes Dongpo Deng's thank you note for volunteers who helped with State of the Map Taiwan 2013 conference. It lists the names of volunteers who helped with various tasks like venue operations, website creation, scheduling, and accounting. It also shows growth in OpenStreetMap data and top contributors from 2012-2013. Finally, it briefly outlines some OSM community mapping events in Taiwan during 2013, including mapping parties in Hualien and Kaohsiung, contributing to events like COSCUP and DrupalCamp, and mappers participating in protests against a trade agreement.
The One and Many Maps: Participatory and Temporal Diversities in OpenStreetMapDongpo Deng
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 central authority controls the making of the map and its release. Is OpenStreetMap more democratic, and in what sense? Is OpenStreetMap more relevant to the mass, and how can we judge?
We define and use several metrics to measure temporal properties of dened areas in OpenStreetMap, and to sample modes of participation in these areas. These metrics are used to graph the datasets representing the current OpenStreetMap so as to reveal unevenness in user participation and data temporality. We use the dataset about Taiwan as a test case to observe participatory and temporal diversities among different areas of Taiwan in OpenStreetMap.
The document discusses how crowdsourced data from platforms like OpenStreetMap, Safecast, and social media can be used to address the impacts of climate change. OpenStreetMap allows anyone to collaboratively map the world and proved useful in mapping areas affected by the 2010 Haiti earthquake within weeks. Safecast crowdsources radiation level data with mobile devices and geiger counters to empower people with information. Social media platforms like Flickr have also been used to track phenomena like changing cherry blossom seasons that may be influenced by climate change. The document argues these informal sources can help collect scientific data and monitor climate impacts in a structured way.
20130905_Feng_Chia_GIS_center_geospatial_ontologyDongpo Deng
The document discusses ontologies, which are formal specifications of conceptualizations that provide shared definitions of concepts in a domain and the relationships between them. It provides definitions of ontology from different perspectives including philosophy, computer science, and geospatial domains. It describes some challenges in developing geospatial ontologies due to the complex, unstructured, and context-dependent nature of geographic concepts. Examples of existing geospatial ontologies and vocabularies are also presented.
Dongpo Deng attended the Linked Data on the Web 2014 workshop and WWW 2014 conference in Seoul from April 7-12. Some key highlights included:
- He stayed in a reasonably priced hotel close to the metro that had small rooms and noise until 2pm.
- At LDOW 2014 he attended sessions on integration, exploration, and applications of linked data that featured talks on topics like RML mappings, DBpedia exploration, and crowdsourced sensor data.
- WWW 2014 had over 600 submissions across 11 areas with a 13% acceptance rate. The keynotes covered graph mining, organizing the digital world, and taming the web.
- Dongpo attended talks on crowds
From Structured Data to Linked Open Governmental DataDongpo Deng
This document discusses linked open data and publishing government data as linked open data. It provides an overview of linked open data principles and standards like URIs, RDF, and SPARQL. It also shares lessons learned from linked open data implementations by governments worldwide and the benefits of exposing data to larger audiences through linked open data. Key challenges include selecting appropriate ontologies and establishing links between data from different sources and domains.
The European Data Forum 2016 discussed the European Commission's 2012 agenda to create a Connected Digital Single Market and promote Open Data, Linked Data, and Big Data to develop the EU's Data Economy. The forum explored how data and digital technologies can support the Digital Economy and Society and help small- and medium-sized enterprises utilize data.
This document discusses data-driven smart governance and describes how governments can utilize data, information, and intelligence through interaction, integration, and influence. It provides examples of how open data, data standards, semantic technologies, machine learning, and public-private partnerships can help power more data-driven decision making and transparent, responsive government services.
The methods and practices of Linked Open DataDongpo Deng
This document discusses various topics related to linked open data and semantic web technologies for agriculture data. It provides examples of Taiwan's open agriculture datasets published as linked data online, and how standards like schema.org can be used to markup recipe data on the web. It also summarizes efforts to build applications and services that integrate agriculture data from different sources using semantic web technologies.
Construction and reuse of linked traceable agricultural product records - An ...Dongpo Deng
This document discusses linking open agricultural product traceability data from Taiwan to create a linked data cloud. It describes the Traceable Agricultural Product (TAP) data format, processing the data to extract and standardize crop names, geocode locations, and map the data to an Agriculture Activity Ontology. SPARQL endpoints were created to query linked data from farms, stores, and restaurants using TAP data. A Chrome extension was developed for federated SPARQL queries across these datasets.
Crowdsourced mapping for open collaboration: A story of Taiwan so farDongpo Deng
The slides presented in State of the Map Japan 2014 mainly introduced the development status of the OSM Taiwan community, and the idea of community mapping is implemented in Taiwan.
Toward Next Generation of Gazetteer: Utilizing GeoSPARQL For Developing Link...Dongpo Deng
This document summarizes Dongpo Deng's presentation on developing linked geoname data using GeoSPARQL. It discusses transforming a Taiwanese place name dataset into RDF triples using a place name ontology. A linked data server and GeoSPARQL endpoint were created to serve and query the linked place name data. Spatial and temporal SPARQL queries over the data were demonstrated. The linked place names can be used as controlled vocabularies and are connected to other datasets like Geonames.org.
This document discusses open geospatial data and engaging citizens in spatial data infrastructures (SDI). It defines open data and open geospatial data. It notes that while grassroots communities in Taiwan are active in open data, there is a lack of high-level policies. The document advocates for governments to act as platforms rather than vendors of data. It outlines different funding models and proposes a 4P approach (Policy, Principle, Process, Price) for open geospatial data. It highlights examples of engaging citizens from other countries and proposes actions Taiwan could take to open data and involve citizens in its SDI.
Social Web Meets Sensor Web: Linked Crowdsourced Observation DataDongpo Deng
This document discusses linking data from biodiversity observations on platforms like Galaxy Zoo, Audubon, and iNaturalist to semantic web standards like the Semantic Sensor Network ontology. It presents an example observation of a Chinese ferret badger from Taiwan expressed using these linked data formats and ontologies. The example includes details on the observation provider, photo, date, location, and taxonomic identification. It also shows SPARQL queries that could be used to retrieve observations from a specific place and time period.
This document summarizes a study on analyzing participatory and temporal diversities in OpenStreetMap (OSM) data. The study defines metrics to measure characteristics like node and mapper densities, node ages, update intervals, and the distribution of contributions across mappers in different OSM cells. Maps of Taiwan are analyzed as a case study. The results show spatial variations in metrics like nodes per area, average node age, and the number of mappers needed for 80% of contributions. The study aims to better understand data collaboration patterns in OSM.
This document discusses using social media for citizen science projects. It proposes an approach to process unstructured crowdsourced data from social media into structured data for scientific purposes. This involves information extraction, formalization, and reuse. Tools are presented for identifying species and location names from social media posts, formalizing the information using an ontology, and publishing the processed data. The goal is to determine if social media can help citizen science and address challenges around unstructured data collection. Future work aims to improve these tools and apply the approach more broadly.
25. OSM v.s. Google Map
• Google Map只能允許使用者在地圖上加上點線
面
• OSM的是直接編輯地圖本身
道路
河流
建物
地址
...
OSM Google Map
開放資
料,眾人
可編輯
地圖商生
產的地
圖,不可
編輯
Tuesday, July 16, 2013
26. OSM Google Map
開放授權 是 否
普及性 相對低 高
技術門檻 高 低
收費 免費 需付費
地圖內容審核 群眾 Google Map
可否取得地理資料 可,免費 難,需付費
可否自由增加地理
資料於地圖中
可 不可
OSM v.s. Google Map
Tuesday, July 16, 2013