Spatial parquet: a column file format for geospatial data lakes
Spatial parquet: a column file format for geospatial data lakes
复制标题
Spatial parquet:地理空间数据湖的列文件格式
DOI:
10.1145/3557915.3561038
复制
发表时间:
2022
期刊:
影响因子:
--
通讯作者:
Eldawy, Ahmed
中科院分区:
文献类型:
--
作者:
Saeedan, Majid;Eldawy, Ahmed
Modern data analytics applications prefer to use column-storage formats due to their improved storage efficiency through encoding and compression. Parquet is the most popular file format for column data storage that provides several of these benefits out of the box. However, geospatial data is not readily supported by Parquet. This paper introduces Spatial Parquet, a Parquet extension that efficiently supports geospatial data. Spatial Parquet inherits all the advantages of Parquet for non-spatial data, such as rich data types, compression, and column/row filtering. Additionally, it adds three new features to accommodate geospatial data. First, it introduces a geospatial data type that can encode all standard spatial data types in a column format compatible with Parquet. Second, it adds a new lossless and efficient encoding method, termed FP-delta, that is customized to efficiently store geospatial coordinates stored in floating-point format. Third, it adds a light-weight spatial index that allows the reader to skip non-relevant parts of the file for increased read efficiency. Experiments on large-scale real data showed that SpatialParquet can reduce the data size by a factor of three, even without compression. Compression can further reduce the storage size. Additionally, Spatial Parquet can reduce the reading time by two orders of magnitude when the light-weight index is applied. This initial prototype can open new research directions to further improve geospatial data storage in column format.
登录
查看更多内容
DOI:
10.1145/3377000.3377005
发表时间:
2019
期刊:
SIGSPATIAL Special
影响因子:
--
作者:
Ghosh, Saheli;Vu, Tin;Eskandari, Mehrad Amin;Eldawy, Ahmed
通讯作者:
Eldawy, Ahmed
DOI:
--
发表时间:
2017
期刊:
International Conference on Big Data Innovations and Applications
影响因子:
--
作者:
Shunsuke Kanda;K. Morita;M. Fuketa
通讯作者:
M. Fuketa
DOI:
10.1145/3459637.3481897
发表时间:
2021-10
期刊:
Proceedings of the 30th ACM International Conference on Information & Knowledge Management
影响因子:
--
作者:
Ahmed Eldawy;Vagelis Hristidis;Saheli Ghosh;Majid Saeedan;Akil Sevim;A.B. Siddique;Samriddhi Singla;Ganeshram Sivaram;Tin Vu;Yaming Zhang
通讯作者:
Ahmed Eldawy;Vagelis Hristidis;Saheli Ghosh;Majid Saeedan;Akil Sevim;A.B. Siddique;Samriddhi Singla;Ganeshram Sivaram;Tin Vu;Yaming Zhang
DOI:
10.1145/3397536.3426358
发表时间:
2020-11
期刊:
Proceedings of the 28th International Conference on Advances in Geographic Information Systems
影响因子:
--
作者:
Abdullah Al-Mamun;Hao Wu;W. Aref
通讯作者:
Abdullah Al-Mamun;Hao Wu;W. Aref
DOI:
10.1109/dcc.2018.00042
发表时间:
2018
期刊:
2018 Data Compression Conference
影响因子:
--
作者:
S. Claggett;S. Azimi;Martin Burtscher
通讯作者:
Martin Burtscher