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09/20/2023
Towards Data-centric Graph Machine Learning: Review and Outlook
Data-centric AI, with its primary focus on the collection, management, a...
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06/05/2023
A Simple Yet High-Performing On-disk Learned Index: Can We Have Our Cake and Eat it Too?
While in-memory learned indexes have shown promising performance as comp...
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05/02/2023
Updatable Learned Indexes Meet Disk-Resident DBMS – From Evaluations to Design Choices
Although many updatable learned indexes have been proposed in recent yea...
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02/28/2022
Points-of-Interest Relationship Inference with Spatial-enriched Graph Neural Networks
As a fundamental component in location-based services, inferring the rel...
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07/27/2021
Let Trajectories Speak Out the Traffic Bottlenecks
Traffic bottlenecks are a set of road segments that have an unacceptable...
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03/30/2021
Public Transport Planning: When Transit Network Connectivity Meets Commuting Demand
In this paper, we make a first attempt to incorporate both commuting dem...
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01/08/2021
Spatial Object Recommendation with Hints: When Spatial Granularity Matters
Existing spatial object recommendation algorithms generally treat object...
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01/05/2021
A Survey on Advancing the DBMS Query Optimizer: Cardinality Estimation, Cost Model, and Plan Enumeration
Query optimizer is at the heart of the database systems. Cost-based opti...
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10/13/2020
On the Efficiency of K-Means Clustering: Evaluation, Optimization, and Algorithm Selection
This paper presents a thorough evaluation of the existing methods that a...
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04/06/2020
Dynamic Ridesharing in Peak Travel Periods
In this paper, we study a variant of the dynamic ridesharing problem wit...
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03/30/2020
Temporal Network Representation Learning via Historical Neighborhoods Aggregation
Network embedding is an effective method to learn low-dimensional repres...
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03/25/2020
A Survey on Trajectory Data Management, Analytics, and Learning
Recent advances in sensor and mobile devices have enabled an unprecedent...
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03/23/2020
Bus Frequency Optimization: When Waiting Time Matters in User Satisfaction
Reorganizing bus frequency to cater for the actual travel demand can sav...
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02/21/2020
Crowdsourced Collective Entity Resolution with Relational Match Propagation
Knowledge bases (KBs) store rich yet heterogeneous entities and facts. E...
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01/07/2019
Location-Centered House Price Prediction: A Multi-Task Learning Approach
Accurate house prediction is of great significance to various real estat...
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02/06/2018