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AI-driven Java Performance Testing: Balancing Result Quality with Testing Time
ASE '24: Proceedings of the 39th IEEE/ACM International Conference on Automated Software EngineeringPages 443–454https://doi.org/10.1145/3691620.3695017Performance testing aims at uncovering efficiency issues of software systems. In order to be both effective and practical, the design of a performance test must achieve a reasonable trade-off between result quality and testing time. This becomes ...
- research-articleOctober 2024
Boosting Certificate Robustness for Time Series Classification with Efficient Self-Ensemble
CIKM '24: Proceedings of the 33rd ACM International Conference on Information and Knowledge ManagementPages 477–486https://doi.org/10.1145/3627673.3679748Recently, the issue of adversarial robustness in the time series domain has garnered significant attention. However, the available defense mechanisms remain limited, with adversarial training being the predominant approach, though it does not provide ...
- research-articleAugust 2024
Orthogonality Matters: Invariant Time Series Representation for Out-of-distribution Classification
KDD '24: Proceedings of the 30th ACM SIGKDD Conference on Knowledge Discovery and Data MiningPages 2674–2685https://doi.org/10.1145/3637528.3671768Previous works for time series classification tend to assume that both the training and testing sets originate from the same distribution. This oversimplification deviates from the complexity of reality and makes it challenging to generalize methods to ...
- research-articleAugust 2024
CAFO: Feature-Centric Explanation on Time Series Classification
KDD '24: Proceedings of the 30th ACM SIGKDD Conference on Knowledge Discovery and Data MiningPages 1372–1382https://doi.org/10.1145/3637528.3671724In multivariate time series (MTS) classification, finding the important features (e.g., sensors) for model performance is crucial yet challenging due to the complex, high-dimensional nature of MTS data, intricate temporal dynamics, and the necessity for ...
- research-articleAugust 2024
Dataset Condensation for Time Series Classification via Dual Domain Matching
KDD '24: Proceedings of the 30th ACM SIGKDD Conference on Knowledge Discovery and Data MiningPages 1980–1991https://doi.org/10.1145/3637528.3671675Time series data has been demonstrated to be crucial in various research fields. The management of large quantities of time series data presents challenges in terms of deep learning tasks, particularly for training a deep neural network. Recently, a ...
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- research-articleAugust 2024
Class-incremental Learning for Time Series: Benchmark and Evaluation
KDD '24: Proceedings of the 30th ACM SIGKDD Conference on Knowledge Discovery and Data MiningPages 5613–5624https://doi.org/10.1145/3637528.3671581Real-world environments are inherently non-stationary, frequently introducing new classes over time. This is especially common in time series classification, such as the emergence of new disease classification in healthcare or the addition of new ...
- short-paperMay 2024
Temporal Knowledge Graph Extraction and Modeling across Multiple Documents for Health Risk Prediction
WWW '24: Companion Proceedings of the ACM Web Conference 2024Pages 1182–1185https://doi.org/10.1145/3589335.3651256Clinical text in electronic health records (EHR) holds vital cues into a patient's journey, often absent in structured EHR data. Evidence-based healthcare decisions demand accurate extraction and modeling of these cues. The goal of our study is to ...
- research-articleDecember 2023
Second-order Confidence Network for Early Classification of Time Series
ACM Transactions on Intelligent Systems and Technology (TIST), Volume 15, Issue 1Article No.: 10, Pages 1–28https://doi.org/10.1145/3631531Time series data are ubiquitous in a variety of disciplines. Early classification of time series, which aims to predict the class label of a time series as early and accurately as possible, is a significant but challenging task in many time-sensitive ...
- ArticleJanuary 2024
- research-articleNovember 2023
Understanding Any Time Series Classifier with a Subsequence-based Explainer
ACM Transactions on Knowledge Discovery from Data (TKDD), Volume 18, Issue 2Article No.: 36, Pages 1–34https://doi.org/10.1145/3624480The growing availability of time series data has increased the usage of classifiers for this data type. Unfortunately, state-of-the-art time series classifiers are black-box models and, therefore, not usable in critical domains such as healthcare or ...
- short-paperApril 2024
Demo Abstract: Lightweight Attention Network for Time Series Classification on Edge
SenSys '23: Proceedings of the 21st ACM Conference on Embedded Networked Sensor SystemsPages 484–485https://doi.org/10.1145/3625687.3628393In this work, we present a lightweight attention network to perform Time Series Classification on Edge devices. We evaluate the merit of our system on a Human Activity Recognition dataset and show the demonstration with the help of a Wearable device (...
- research-articleOctober 2023
Unleashing the Power of Shared Label Structures for Human Activity Recognition
CIKM '23: Proceedings of the 32nd ACM International Conference on Information and Knowledge ManagementPages 3340–3350https://doi.org/10.1145/3583780.3615101Current human activity recognition (HAR) techniques regard activity labels as integer class IDs without explicitly modeling the semantics of class labels. We observe that different activity names often have shared structures. For example, "open door" and ...
- research-articleOctober 2023
Temporal Convolutional Explorer Helps Understand 1D-CNN's Learning Behavior in Time Series Classification from Frequency Domain
CIKM '23: Proceedings of the 32nd ACM International Conference on Information and Knowledge ManagementPages 3351–3360https://doi.org/10.1145/3583780.3615076While one-dimensional convolutional neural networks (1D-CNNs) have been empirically proven effective in time series classification tasks, we find that there remain undesirable outcomes that could arise in their application, motivating us to further ...
- ArticleDecember 2023
Do Cows Have Fingerprints? Using Time Series Techniques and Milk Flow Profiles to Characterise Cow Milking Performance and Detect Health Issues
Advanced Analytics and Learning on Temporal DataPages 230–242https://doi.org/10.1007/978-3-031-49896-1_15AbstractOn modern dairy farms technologies that are capable of measuring high frequency indicators (e.g. milk yield, milk flow-rates, and electrical conductivity) at every milking can play an important role in helping farmers manage animal health. The ...
- research-articleAugust 2023
Online Few-Shot Time Series Classification for Aftershock Detection
KDD '23: Proceedings of the 29th ACM SIGKDD Conference on Knowledge Discovery and Data MiningPages 5707–5716https://doi.org/10.1145/3580305.3599879Seismic monitoring systems sift through seismograms in real-time, searching for target events, such as underground explosions. In this monitoring system, a burst of aftershocks (minor earthquakes occur after a major earthquake over days or even years) ...
- research-articleJanuary 2023
Data-Driven Surface Classification for Differential Drive Autonomous Guided Vehicles
Procedia Computer Science (PROCS), Volume 217, Issue CPages 1452–1461https://doi.org/10.1016/j.procs.2022.12.344AbstractAs a result of the digital transformation, the degree of automation in production environments is constantly increasing. The automation of logistics processes offers great potential for optimizing material flows within production. However, there ...
- short-paperOctober 2022
On the Mining of Time Series Data Counterfactual Explanations using Barycenters
CIKM '22: Proceedings of the 31st ACM International Conference on Information & Knowledge ManagementPages 3943–3947https://doi.org/10.1145/3511808.3557663EXplainable Artificial Intelligence (XAI) methods are increasingly accepted as effective tools to trace complex machine learning models' decision-making processes. There are two underlying XAI paradigms: (1) traditional factual methods and (2) emerging ...
- research-articleOctober 2022
Breast Cancer Early Detection with Time Series Classification
CIKM '22: Proceedings of the 31st ACM International Conference on Information & Knowledge ManagementPages 3735–3745https://doi.org/10.1145/3511808.3557107Breast cancer has become the leading cause of women cancer death worldwide. Despite the consensus that breast cancer early detection can significantly reduce treatment difficulty and cancer mortality, people still are reluctant to go to hospital for ...
- research-articleSeptember 2022
SCALE-BOSS: A framework for scalable time-series classification using symbolic representations
SETN '22: Proceedings of the 12th Hellenic Conference on Artificial IntelligenceArticle No.: 20, Pages 1–9https://doi.org/10.1145/3549737.3549761Time-Series Classification (TSC) is an important problem in many fields across sciences. Many algorithms for TSC use symbolic representation to combat noise. In this paper we propose a framework, namely SCALE-BOSS, to build TSC algorithms that exploit ...
- research-articleJuly 2022
A Classification Strategy for Internet of Things Data Based on the Class Separability Analysis of Time Series Dynamics
ACM Transactions on Internet of Things (TIOT), Volume 3, Issue 3Article No.: 23, Pages 1–30https://doi.org/10.1145/3533049This article proposes TSCLAS, a time series classification strategy for the Internet of Things (IoT) data, based on the class separability analysis of their temporal dynamics. Given the large number and incompleteness of IoT data, the use of traditional ...