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    Chapter and Conference Paper

    Determination of Trace Gas Concentration in the Atmosphere by Using an Infrared Laser

    Absorption coefficients of many species at some CO and CO2 laser lines were obtained from spectral tansmittances which are measured by using the ratio of the measuring and controlling beams. Based on the obtained...

    Wang Gengchen, Kong Qinxin in Atmospheric Radiation (1987)

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    Chapter

    Ethnic Harmony and Conflicts in Central Asia: Origins and Policies

    In ethnic terms, Central Asia constitutes a maze. Both during Czarist times and under Soviet rule, Central Asia was full of sharp ethnic contradictions. Frequent ethnic conflicts and struggles of ethnic minori...

    Gengchen Liu in Ethnic Challenges beyond Borders (1998)

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    Chapter and Conference Paper

    Moon Landing or Safari? A Study of Systematic Errors and Their Causes in Geographic Linked Data

    While the adoption of Linked Data technologies has grown dramatically over the past few years, it has not come without its own set of growing challenges. The triplification of domain data into Linked Data has ...

    Krzysztof Janowicz, Yingjie Hu, Grant McKenzie, Song Gao in Geographic Information Science (2016)

  4. Chapter and Conference Paper

    GNIS-LD: Serving and Visualizing the Geographic Names Information System Gazetteer as Linked Data

    In this dataset description paper we introduce the GNIS-LD, an authoritative and public domain Linked Dataset derived from the Geographic Names Information System (GNIS) which was developed by the U.S. Geologi...

    Blake Regalia, Krzysztof Janowicz, Gengchen Mai, Dalia Varanka in The Semantic Web (2018)

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    Chapter and Conference Paper

    Support and Centrality: Learning Weights for Knowledge Graph Embedding Models

    Computing knowledge graph (KG) embeddings is a technique to learn distributional representations for components of a knowledge graph while preserving structural information. The learned embeddings can be used ...

    Gengchen Mai, Krzysztof Janowicz, Bo Yan in Knowledge Engineering and Knowledge Management (2018)

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    Chapter and Conference Paper

    Relaxing Unanswerable Geographic Questions Using A Spatially Explicit Knowledge Graph Embedding Model

    Recent years have witnessed a rapid increase in Question Answering (QA) research and products in both academic and industry. However, geographic question answering remained nearly untouched although geographic...

    Gengchen Mai, Bo Yan, Krzysztof Janowicz in Geospatial Technologies for Local and Regi… (2020)

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    Chapter

    Harnessing Heterogeneous Big Geospatial Data

    The heterogeneity of geospatial datasets is a mixed blessing in that it theoretically enables researchers to gain a more holistic picture by providing different (cultural) perspectives, media formats, resoluti...

    Bo Yan, Gengchen Mai, Yingjie Hu, Krzysztof Janowicz in Handbook of Big Geospatial Data (2021)

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    Chapter

    Automatic Urban Road Network Extraction From Massive GPS Trajectories of Taxis

    Urban road networks are fundamental transportation infrastructures in daily life and essential in digital maps to support vehicle routing and navigation. Traditional methods of map vector data generation based...

    Song Gao, Mingxiao Li, **meng Rao, Gengchen Mai in Handbook of Big Geospatial Data (2021)

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    Chapter and Conference Paper

    Low Light Video Enhancement Based on Temporal-Spatial Complementary Feature

    Under low light conditions, the quality of video data is heavily affected by noise, artifacts, and weak contrast, leading to low signal-to-noise ratio. Therefore, enhancing low light video to obtain high-quali...

    Gengchen Zhang, Yuhang Zeng, Ying Fu in Artificial Intelligence (2022)

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    Chapter and Conference Paper

    A Spatial Interpolation Using Clustering Adaptive Inverse Distance Weighting Algorithm with Linear Regression

    The Inverse Distance Weighting (IDW) spatial interpolation algorithm is one of the important methods that are used to estimate the values of specific locations based on an observation dataset of samples. Howev...

    Liang Zhu, Gengchen Hou, **n Song in Knowledge Science, Engineering and Managem… (2022)

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    Chapter and Conference Paper

    LD Connect: A Linked Data Portal for IOS Press Scientometrics

    In this work, we describe a Linked Data portal, LD Connect, which operates on all bibliographic data produced by IOS Press over the past thirty-five years, including more than a hundred thousand papers, author...

    Zilong Liu, Meilin Shi, Krzysztof Janowicz, Blake Regalia in The Semantic Web (2022)

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    Chapter and Conference Paper

    Functional Semantics Analysis in Deep Neural Networks

    Deep neural networks (DNNs) have achieved remarkable success in various domains, yet their lack of interpretability remains a critical limitation. To address this challenge, functional networks have emerged as...

    Ben Zhang, Gengchen Li, Hongwei Lin in Applied Intelligence (2024)