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Topological Data Analysis (TDA) is an emergent field that aims to discover topological information hidden in a dataset. TDA tools have been commonly used to create filters and topological descriptors to improve Machine Learning (ML)…

Machine Learning · Computer Science 2021-02-09 Rolando Kindelan , José Frías , Mauricio Cerda , Nancy Hitschfeld

Correlated time series (CTS) forecasting plays an essential role in many cyber-physical systems, where multiple sensors emit time series that capture interconnected processes. Solutions based on deep learning that deliver state-of-the-art…

Machine Learning · Computer Science 2021-12-22 Xinle Wu , Dalin Zhang , Chenjuan Guo , Chaoyang He , Bin Yang , Christian S. Jensen

Clustering and outlier detection are two important tasks in data mining. Outliers frequently interfere with clustering algorithms to determine the similarity between objects, resulting in unreliable clustering results. Currently, only a few…

Machine Learning · Computer Science 2024-12-10 Qi Li , Shuliang Wang

Task-oriented dialogue (TOD) systems have assisted users on many tasks, including ticket booking and service inquiries. While existing TOD systems have shown promising performance in serving customer needs, these systems mostly assume that…

Computation and Language · Computer Science 2022-10-25 Zhiqiang Hu , Roy Kaa-Wei Lee , Nancy F. Chen

Multivariate time-series (MTS) anomaly detection is critical in domains such as service monitor, IoT, and network security. While multi-model methods based on selection or ensembling outperform single-model ones, they still face…

Machine Learning · Computer Science 2026-01-06 Wei Hu , Zewei Yu , Jianqiu Xu

Outlier detection (OD) is one of the core challenges in machine learning. Transductive learning, which leverages test data during training, has shown promise in related machine learning tasks, yet remains largely unexplored for modern OD.…

Machine Learning · Computer Science 2025-09-03 Simon Klüttermann , Emmanuel Müller

For decades, the join operator over fast data streams has always drawn much attention from the database community, due to its wide spectrum of real-world applications, such as online clustering, intrusion detection, sensor data monitoring,…

Databases · Computer Science 2019-08-26 Weilong Ren , Xiang Lian , Kambiz Ghazinour

Visual object recognition in unseen and cluttered indoor environments is a challenging problem for mobile robots. This study presents a 3D shape and color-based descriptor, TOPS2, for point clouds generated from RGB-D images and an…

Computer Vision and Pattern Recognition · Computer Science 2024-12-17 Ekta U. Samani , Ashis G. Banerjee

TAPS is a Topology-Aware intra-operator Parallelism strategy Searching algorithm that generates intra-operator parallelism strategies by considering both intra-node and inter-node bandwidth. Most of the existing auto-parallelism works use…

Distributed, Parallel, and Cluster Computing · Computer Science 2023-01-12 Peng Liang , Hao Zheng , Teng Su , Linbo Qiao , Dongsheng Li

We describe a system called Overton, whose main design goal is to support engineers in building, monitoring, and improving production machine learning systems. Key challenges engineers face are monitoring fine-grained quality, diagnosing…

Machine Learning · Computer Science 2019-09-13 Christopher Ré , Feng Niu , Pallavi Gudipati , Charles Srisuwananukorn

This paper introduces new methodology based on the field of Topological Data Analysis for detecting anomalies in multivariate time series, that aims to detect global changes in the dependency structure between channels. The proposed…

Statistics Theory · Mathematics 2024-06-11 Frédéric Chazal , Martin Royer , Clément Levrard

For real-world language applications, detecting an out-of-distribution (OOD) sample is helpful to alert users or reject such unreliable samples. However, modern over-parameterized language models often produce overconfident predictions for…

Computation and Language · Computer Science 2023-07-20 Jaeyoung Kim , Kyuheon Jung , Dongbin Na , Sion Jang , Eunbin Park , Sungchul Choi

TODO comments are widely used by developers to remind themselves or others about incomplete tasks. In other words, TODO comments are usually associated with temporary or suboptimal solutions. In practice, all the equivalent suboptimal…

Software Engineering · Computer Science 2024-05-13 Zhipeng Gao , Yanqi Su , Xing Hu , Xin Xia

The rapid development in the field of System of Chip (SoC) technology, Internet of Things (IoT), cloud computing, and artificial intelligence has brought more possibilities of improving and solving the current problems. With data analytics…

Machine Learning · Computer Science 2021-09-29 Xinze Li , Baixi Zou

Tensor-on-tensor (TOT) regression is an important tool for the analysis of tensor data, aiming to predict a set of response tensors from a corresponding set of predictor tensors. However, standard TOT regression is sensitive to outliers,…

Methodology · Statistics 2026-03-30 Mehdi Hirari , Fabio Centofanti , Mia Hubert , Stefan Van Aelst

Intrusion Detection System (IDS) is one of the security measures being used as an additional defence mechanism to prevent the security breaches on web. It has been well known methodology for detecting network-based attacks but still…

Cryptography and Security · Computer Science 2018-08-14 Nancy Agarwal , Syed Zeeshan Hussain

Out-of-distribution (OOD) detection is essential to prevent anomalous inputs from causing a model to fail during deployment. While improved OOD detection methods have emerged, they often rely on the final layer outputs and require a full…

Computer Vision and Pattern Recognition · Computer Science 2021-05-03 Ziqian Lin , Sreya Dutta Roy , Yixuan Li

Deep time series models are vulnerable to noisy data ubiquitous in real-world applications. Existing robustness strategies either prune data or rely on costly prior quantification, failing to balance effectiveness and efficiency. In this…

Artificial Intelligence · Computer Science 2026-05-26 Siru Zhong , Yiqiu Liu , Zhiqing Cui , Zezhi Shao , Fei Wang , Qingsong Wen , Yuxuan Liang

In the last decade, an impressive increase in software adaptions has led to a surge in log data production, making manual log analysis impractical and establishing the necessity for automated methods. Conversely, most automated analysis…

Software Engineering · Computer Science 2025-11-19 Shayan Hashemi , Mika Mäntylä

Outlier detection (OD) is a key machine learning (ML) task for identifying abnormal objects from general samples with numerous high-stake applications including fraud detection and intrusion detection. Due to the lack of ground truth…