Typed states for the displayed outbound observations.
Source: paper_references, paper_reference_links, observed 2026-08-14T11:14:15.796500Z
Paper Citation Record · LEDGER
As of 16 August 2026, this Paper Citation Record lists 22 of 22 outbound references and 0 inbound Pith citation observations for arXiv:1908.09520.
A citation records a reference. It does not transfer a finding from one paper to another.
Typed states for the displayed outbound observations.
Source: paper_references, paper_reference_links, observed 2026-08-14T11:14:15.796500Z
One-hop event checks from named stored sources.
Source: scholarly_work_events, retraction_status_cache, observed 2026-08-16T06:30:59.297886+00:00
Pith citing papers itemized under the disclosed page cap.
Source: paper_references, paper_reference_links
A source-named dated measurement, never combined with another source.
Source: cited_works
22 of 22 outbound references displayed
External citation measurements
No source-named external measurement is stored.
Observation 9e47f466-0711-4e7b-af0f-32229c40dd4c · outbound
NETR-Tree: An Eifficient Framework for Social-Based Time-Aware Spatial Keyword Query Data Knowledge Engineering (DKE) 60(1), 208–221 (2007)
Reference 1
Source-reported events for the cited work
No event found in the named queried sources as of 2026-08-16T06:30:59.297886+00:00.
Observation 9a238622-d784-4641-86c2-82f183effdb0 · outbound
NETR-Tree: An Eifficient Framework for Social-Based Time-Aware Spatial Keyword Query ACM Computing Surveys (CSUR) 47(2), 15 (2015)
Reference 2
Source-reported events for the cited work
No event found in the named queried sources as of 2026-08-16T06:30:59.297886+00:00.
Observation 3ee4b833-cdef-48a8-89c3-87219e2cd748 · outbound
NETR-Tree: An Eifficient Framework for Social-Based Time-Aware Spatial Keyword Query In: International Conference on Conceptual Mod- eling (ER)
Reference 3
Source-reported events for the cited work
No event found in the named queried sources as of 2026-08-16T06:30:59.297886+00:00.
Observation 20837012-00e8-4e52-bdfa-c6ce028501d0 · outbound
NETR-Tree: An Eifficient Framework for Social-Based Time-Aware Spatial Keyword Query IEEE Transactions on Knowledge and Data Engineering (TKDE) 29(11), 2601–2614 (2017)
Reference 4
Source-reported events for the cited work
No event found in the named queried sources as of 2026-08-16T06:30:59.297886+00:00.
Observation 185b16c3-2ac7-4199-944c-fd0d5536fc51 · outbound
NETR-Tree: An Eifficient Framework for Social-Based Time-Aware Spatial Keyword Query In: IEEE International Conference on Data Engineering (ICDE)
Reference 5
Source-reported events for the cited work
No event found in the named queried sources as of 2026-08-16T06:30:59.297886+00:00.
Observation f8bc7143-fa16-40d1-8666-c1ebffdd1061 · outbound
NETR-Tree: An Eifficient Framework for Social-Based Time-Aware Spatial Keyword Query The Proceedings of the Very Large Database Endowment Endowment (PVLDB) 6(3), 217–228 (2013) NETR-Tree for Social-Based Time-Aware Spatial Keyword Query 15
Reference 6
Source-reported events for the cited work
No event found in the named queried sources as of 2026-08-16T06:30:59.297886+00:00.
Observation 58b50d72-6fc5-403f-a17e-0e30b23fbdd1 · outbound
NETR-Tree: An Eifficient Framework for Social-Based Time-Aware Spatial Keyword Query In: ACM Knowledge discovery and data mining (KDD)
Reference 7
Source-reported events for the cited work
No event found in the named queried sources as of 2026-08-16T06:30:59.297886+00:00.
Observation 7d5716f2-3f41-4175-a238-b96cd5d8e0d5 · outbound
NETR-Tree: An Eifficient Framework for Social-Based Time-Aware Spatial Keyword Query IEEE Transactions on Intelligent Transportation Sys- tems(ITS) 17(2), 469–480 (2016)
Reference 8
Source-reported events for the cited work
No event found in the named queried sources as of 2026-08-16T06:30:59.297886+00:00.
Observation 1ecc081b-7d9e-4a15-9455-e966c2228905 · outbound
NETR-Tree: An Eifficient Framework for Social-Based Time-Aware Spatial Keyword Query In: International Conference on Service- Oriented Computing (ICSOC)
Reference 9
Source-reported events for the cited work
No event found in the named queried sources as of 2026-08-16T06:30:59.297886+00:00.
Observation 2918f93d-bd57-4dc5-a2f3-3515b0fa678d · outbound
NETR-Tree: An Eifficient Framework for Social-Based Time-Aware Spatial Keyword Query The International Journal on Very Large Data Bases(The VLDB Journal) 23(1), 129–145 (2014)
Reference 10
Source-reported events for the cited work
No event found in the named queried sources as of 2026-08-16T06:30:59.297886+00:00.
Observation b37f6cc1-c50b-4a45-ae6d-31fd702d45c9 · outbound
NETR-Tree: An Eifficient Framework for Social-Based Time-Aware Spatial Keyword Query IEEE Transactions on Knowledge and Data Engineering (ICDE) 23(4), 585–599 (2011)
Reference 11
Source-reported events for the cited work
No event found in the named queried sources as of 2026-08-16T06:30:59.297886+00:00.
Observation 0d676c31-f9f8-48a2-9d68-ae6263f50032 · outbound
NETR-Tree: An Eifficient Framework for Social-Based Time-Aware Spatial Keyword Query IEEE Transactions on Knowledge and Data Engineering (TKDE) 27(5), 1288–1300 (2015)
Reference 12
Source-reported events for the cited work
No event found in the named queried sources as of 2026-08-16T06:30:59.297886+00:00.
Observation 63e44526-f780-4277-be42-8daf98788870 · outbound
NETR-Tree: An Eifficient Framework for Social-Based Time-Aware Spatial Keyword Query Information Sciences (Inf
Reference 13
Source-reported events for the cited work
No event found in the named queried sources as of 2026-08-16T06:30:59.297886+00:00.
Observation f684e884-7806-47c6-a9de-ca8ba5e59f4e · outbound
NETR-Tree: An Eifficient Framework for Social-Based Time-Aware Spatial Keyword Query In: ACM International Conference on Con- ference on Information and Knowledge Management (CIKM)
Reference 14
Source-reported events for the cited work
No event found in the named queried sources as of 2026-08-16T06:30:59.297886+00:00.
Observation 6b67da01-e86c-4800-89e3-64d2aba99911 · outbound
NETR-Tree: An Eifficient Framework for Social-Based Time-Aware Spatial Keyword Query In: International Conference of Learning Representation Workshop (ICLR Workshop)
Reference 15
Source-reported events for the cited work
No event found in the named queried sources as of 2026-08-16T06:30:59.297886+00:00.
Observation 39d32fd3-a25f-4815-b57c-186e74dbbebc · outbound
NETR-Tree: An Eifficient Framework for Social-Based Time-Aware Spatial Keyword Query In: ACM Knowledge discovery and data mining (KDD)
Reference 16
Source-reported events for the cited work
No event found in the named queried sources as of 2026-08-16T06:30:59.297886+00:00.
Observation c0df1b8c-10cf-4b7a-9fa8-36d3492126b4 · outbound
NETR-Tree: An Eifficient Framework for Social-Based Time-Aware Spatial Keyword Query The Computer Journal 61(11), 1620–1638 (2018)
Reference 17
Source-reported events for the cited work
No event found in the named queried sources as of 2026-08-16T06:30:59.297886+00:00.
Observation 74d11581-46a9-4474-b247-16d1ce386189 · outbound
NETR-Tree: An Eifficient Framework for Social-Based Time-Aware Spatial Keyword Query In: ACM International Conference on World Wide Web (WWW)
Reference 18
Source-reported events for the cited work
No event found in the named queried sources as of 2026-08-16T06:30:59.297886+00:00.
Observation 4f00dfbb-b1e3-4df0-9ab6-313c56f84fb0 · outbound
NETR-Tree: An Eifficient Framework for Social-Based Time-Aware Spatial Keyword Query The International Journal on Very Large Data Bases(The VLDB Journal) 26(3), 301–326 (2017)
Reference 19
Source-reported events for the cited work
No event found in the named queried sources as of 2026-08-16T06:30:59.297886+00:00.
Observation 8a91b018-b95a-4269-ace3-2e4f0db03c8c · outbound
NETR-Tree: An Eifficient Framework for Social-Based Time-Aware Spatial Keyword Query In: IEEE International Conference on Data Mining (ICDM)
Reference 20
Source-reported events for the cited work
No event found in the named queried sources as of 2026-08-16T06:30:59.297886+00:00.
Observation 58cb04c7-3939-4a66-ac74-ffc4343c7438 · outbound
NETR-Tree: An Eifficient Framework for Social-Based Time-Aware Spatial Keyword Query The International Journal on Very Large Data Bases (The VLDB Journal) 21(6), 797–822 (2012)
Reference 21
Source-reported events for the cited work
No event found in the named queried sources as of 2026-08-16T06:30:59.297886+00:00.
Observation c7dee095-a906-4602-a99c-df2a244f7116 · outbound
NETR-Tree: An Eifficient Framework for Social-Based Time-Aware Spatial Keyword Query The International Journal on Very Large Data Bases (The VLDB Journal) 27(2), 225–244 (2018)
Reference 22
Source-reported events for the cited work
No event found in the named queried sources as of 2026-08-16T06:30:59.297886+00:00.
No inbound Pith citation observations are available.