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Geographic Question Answering: Challenges, Uniqueness, Classification, and Future Directions


May 19, 2021
Gengchen Mai, Krzysztof Janowicz, Rui Zhu, Ling Cai, Ni Lao

* AGILE 2021 
* 20 pages, 3 figure, Full paper accepted to AGILE 2021 

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SE-KGE: A Location-Aware Knowledge Graph Embedding Model for Geographic Question Answering and Spatial Semantic Lifting


Apr 25, 2020
Gengchen Mai, Krzysztof Janowicz, Ling Cai, Rui Zhu, Blake Regalia, Bo Yan, Meilin Shi, Ni Lao

* Transactions in GIS, 2020 
* Accepted to Transactions in GIS 

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Semantically-Enriched Search Engine for Geoportals: A Case Study with ArcGIS Online


Mar 14, 2020
Gengchen Mai, Krzysztof Janowicz, Sathya Prasad, Meilin Shi, Ling Cai, Rui Zhu, Blake Regalia, Ni Lao

* AGILE 2020, Jun. 16 - 19, 2020, Chania, Crete, Greece 
* 18 pages; Accepted to AGILE 2020 as a full paper GitHub Code Repository: https://github.com/gengchenmai/arcgis-online-search-engine 

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Multi-Scale Representation Learning for Spatial Feature Distributions using Grid Cells


Feb 16, 2020
Gengchen Mai, Krzysztof Janowicz, Bo Yan, Rui Zhu, Ling Cai, Ni Lao

* ICLR 2020, Apr. 26 - 30, 2020, Addis Ababa, ETHIOPIA 
* 15 pages; Accepted to ICLR 2020 as a spotlight paper 

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TransGCN:Coupling Transformation Assumptions with Graph Convolutional Networks for Link Prediction


Oct 01, 2019
Ling Cai, Bo Yan, Gengchen Mai, Krzysztof Janowicz, Rui Zhu


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Contextual Graph Attention for Answering Logical Queries over Incomplete Knowledge Graphs


Sep 30, 2019
Gengchen Mai, Krzysztof Janowicz, Bo Yan, Rui Zhu, Ling Cai, Ni Lao

* K-CAP 2019, Nov. 19 - 21, 2019, Marina del Rey, CA, USA 
* 8 pages, 3 figures, camera ready version of article accepted to K-CAP 2019, Marina del Rey, California, United States 

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An empirical study on the names of points of interest and their changes with geographic distance


Jun 21, 2018
Yingjie Hu, Krzysztof Janowicz

* 15 pages, 7 figures, GIScience 2018 

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SOSA: A Lightweight Ontology for Sensors, Observations, Samples, and Actuators


May 25, 2018
Krzysztof Janowicz, Armin Haller, Simon J D Cox, Danh Le Phuoc, Maxime Lefrancois


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The observational roots of reference of the semantic web


Jun 27, 2012
Simon Scheider, Krzysztof Janowicz, Benjamin Adams

* 4 pages 

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