Akane: Perplexity-Guided Time Series Data Cleaning

Summary: Akane reframes time-series cleaning as perplexity minimization: exploit recurrent patterns like token n-grams, then pick edits under a cleaning budget to lower sequence perplexity. Key novelty is perplexity-guided dirty-point detection/repair with a 4-phase framework plus budget selection and pattern-aggregation heuristics. (summarized by gpt-5.4-mini on May 24 2026)

Paper ID: 6953
Venue: SIGMOD
Year: 2024
Pagerank: 4.7965857e-05
Overall Rank: 7,223 | 49.76%
DOI: 10.1145/3654993

Incoming Non-self Citations Over Time

Authors

Incoming Citations (Sorted by Pagerank)

Showing 3 of 3 citing papers.

Rank	Citing Paper	Year	Venue	Pagerank
10,081	From Suspicious Errors to Valid Data: On Repairing Spatio-Temporal Data via Spatial and Temporal Dependencies	2026	SIGMOD	4.1945683e-05
10,211	SHoTClean: Bridging Soft and Hard Constraints for Multivariate Time Series Cleaning	2026	SIGMOD	4.1945683e-05
10,511	The Best of Both Worlds: On Repairing Timestamps and Attribute Values for Multivariate Time Series	2025	SIGMOD	4.1945683e-05

Outgoing Citations (Sorted by Pagerank)

Showing 16 of 16 cited papers.

Citations counted here include only citations to other VLDB/SIGMOD/CIDR/PODS papers in this database.

Rank	Cited Paper	Year	Venue	Pagerank
161	LOF: Identifying Density-Based Local Outliers	2000	SIGMOD	0.00039846974
192	HoloClean: Holistic Data Repairs with Probabilistic Inference	2017	VLDB	0.00035728858
265	A Cost-Based Model and Effective Heuristic for Repairing Constraints by Value Modification	2005	SIGMOD	0.00029763412
881	Don’t be SCAREd: Use SCalable Automatic REpairing with Maximal Likelihood and Bounded Changes	2013	SIGMOD	0.00015661103
1,211	Truth Finding on the Deep Web: Is the Problem Solved?	2013	VLDB	0.00013257101
1,253	Anomaly Detection in Time Series: A Comprehensive Evaluation	2022	VLDB	0.00013032074
1,546	KATARA: A Data Cleaning System Powered by Knowledge Bases and Crowdsourcing	2015	SIGMOD	0.00011446851
1,594	Adaptive Cleaning for RFID Data Streams	2006	VLDB	0.00011222484
2,159	Sequential Dependencies	2009	VLDB	9.4130956e-05
3,133	Time Series Data Cleaning: From Anomaly Detection to Anomaly Repairing	2017	VLDB	7.4978041e-05
4,947	Efficient Temporal Pattern Mining in Big Time Series Using Mutual Information	2022	VLDB	5.8123636e-05
5,002	Sequential Data Cleaning: A Statistical Approach	2016	SIGMOD	5.7671075e-05
5,152	Learning-Based Cleansing for Indoor RFID Data	2016	SIGMOD	5.6609383e-05
6,583	SCREEN: Stream Data Cleaning under Speed Constraints	2015	SIGMOD	5.0027988e-05
7,391	Time Series Data Validity	2023	SIGMOD	4.7429293e-05
7,564	PIClean: A Probabilistic and Interactive Data Cleaning System	2019	SIGMOD	4.7093702e-05

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Overall Rank	Paper	Year	Venue	Pagerank
10,723	UniClean: A Scalable Data Cleaning Solution for Mixed Errors based on Unified Cleaners and Optimized Cleaning Workflow	2025	VLDB	4.1945683e-05
7,867	Learning Over Dirty Data Without Cleaning	2020	SIGMOD	4.6320452e-05
3,133	Time Series Data Cleaning: From Anomaly Detection to Anomaly Repairing	2017	VLDB	7.4978041e-05
9,558	Clean4TSDB: A Data Cleaning Tool for Time Series Databases	2024	VLDB	4.3254416e-05
791	ActiveClean: Interactive Data Cleaning For Statistical Modeling	2016	VLDB	0.00016629664
10,211	SHoTClean: Bridging Soft and Hard Constraints for Multivariate Time Series Cleaning	2026	SIGMOD	4.1945683e-05
5,929	ActiveClean: An Interactive Data Cleaning Framework For Modern Machine Learning	2016	SIGMOD	5.2682177e-05
9,560	MTSClean: Efficient Constraint-based Cleaning for Multi-Dimensional Time Series Data	2024	VLDB	4.3254416e-05
3,825	Cleanits: A Data Cleaning System for Industrial Time Series	2019	VLDB	6.7255837e-05
10,061	Cleaning Time Series under Seasonal and Trend Constraints	2026	SIGMOD	4.1945683e-05