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Complex events originate from other primitive events combined according to defined patterns and rules. Instead of using specialists' manual work to compose the model rules, we use machine learning (ML) to self-define these patterns and…

Machine Learning · Computer Science 2024-11-05 Maria J. P. Peixoto , Akramul Azim

Quantifying and predicting rare and extreme events persists as a crucial yet challenging task in understanding complex dynamical systems. Many practical challenges arise from the infrequency and severity of these events, including the…

Machine Learning · Statistics 2025-10-23 Kai Chang , Themistoklis P. Sapsis

Prior work has primarily formulated CA-HAR as a multi-label classification problem, where model inputs are time-series sensor data and target labels are binary encodings representing whether a given activity or context occurs. These CA-HAR…

Machine Learning · Computer Science 2025-04-11 Wen Ge , Guanyi Mou , Emmanuel O. Agu , Kyumin Lee

Cause-effect relations are an important part of human knowledge. In real life, humans often reason about complex causes linked to complex effects. By comparison, existing formalisms for representing knowledge about causal relations are…

Logic in Computer Science · Computer Science 2014-05-12 Bart Bogaerts , Joost Vennekens , Marc Denecker , Jan Van den Bussche

Sequential effect systems are a class of effect system that exploits information about program order, rather than discarding it as traditional commutative effect systems do. This extra expressive power allows effect systems to reason about…

Programming Languages · Computer Science 2020-05-18 Colin S. Gordon

Event Coreference Resolution (ECR) is the task of linking mentions of the same event either within or across documents. Most mention pairs are not coreferent, yet many that are coreferent can be identified through simple techniques such as…

Computation and Language · Computer Science 2023-05-11 Shafiuddin Rehan Ahmed , Abhijnan Nath , James H. Martin , Nikhil Krishnaswamy

Event co-occurrences have been proved effective for event extraction (EE) in previous studies, but have not been considered for event argument extraction (EAE) recently. In this paper, we try to fill this gap between EE research and EAE…

Computation and Language · Computer Science 2023-06-02 Yuxin He , Jingyue Hu , Buzhou Tang

Process mining has become a cornerstone of process analysis and improvement over the last few years. With the widespread adoption of process mining tools and libraries, the limitations of traditional process mining to deal with event data…

Databases · Computer Science 2024-03-05 Istvan Koren , Niklas Adams , Alessandro Berti

Many problems in Computer Science can be framed as the computation of queries over sequences, or "streams" of data units called events. The field of Complex Event Processing (CEP) relates to the techniques and tools developed to efficiently…

Databases · Computer Science 2017-02-28 Sylvain Hallé

Detecting complex patterns in large volumes of event logs has diverse applications in various domains, such as business processes and fraud detection. Existing systems like ELK are commonly used to tackle this challenge, but their…

Databases · Computer Science 2024-01-19 Ioannis Mavroudopoulos , Anastasios Gounaris

Video data is highly expressive and has traditionally been very difficult for a machine to interpret. Querying event patterns from video streams is challenging due to its unstructured representation. Middleware systems such as Complex Event…

Computer Vision and Pattern Recognition · Computer Science 2020-07-16 Piyush Yadav , Edward Curry

Compound Expression Recognition (CER) plays a crucial role in interpersonal interactions. Due to the existence of Compound Expressions , human emotional expressions are complex, requiring consideration of both local and global facial…

Computer Vision and Pattern Recognition · Computer Science 2024-03-20 Jun Yu , Jichao Zhu , Wangyuan Zhu

Speech Emotion recognition (SER) in call center conversations has emerged as a valuable tool for assessing the quality of interactions between clients and agents. In contrast to controlled laboratory environments, real-life conversations…

Audio and Speech Processing · Electrical Eng. & Systems 2023-10-05 Yajing Feng , Laurence Devillers

An object--oriented approach to create a natural language understanding system is considered. The understanding program is a formal system built on the base of predicative calculus. Horn's clauses are used as well--formed formulas. An…

Computation and Language · Computer Science 2013-08-08 Yuriy Ostapov

The execution of processes leaves traces of event data in information systems. These event data can be analyzed through process mining techniques. For traditional process mining techniques, one has to associate each event with exactly one…

Databases · Computer Science 2022-08-08 Jan Niklas Adams , Daniel Schuster , Seth Schmitz , Günther Schuh , Wil M. P. van der Aalst

Analyzing process data at varying levels of granularity is important to derive actionable insights and support informed decision-making. Object-Centric Event Data (OCED) enhances process mining by capturing interactions among events and…

Databases · Computer Science 2026-04-08 Shahrzad Khayatbashi , Najmeh Miri , Amin Jalali

Robots and autonomous systems require an understanding of complex events (CEs) from sensor data to interact with their environments and humans effectively. Traditional end-to-end neural architectures, despite processing sensor data…

Artificial Intelligence · Computer Science 2024-03-05 Liying Han , Mani B. Srivastava

Complex Event Processing (CEP) is a set of methods that allow efficient knowledge extraction from massive data streams using complex and highly descriptive patterns. Numerous applications, such as online finance, healthcare monitoring and…

Machine Learning · Computer Science 2022-07-29 Guy Shapira , Assaf Schuster

Combining the representations of the words that make up a sentence into a cohesive whole is difficult, since it needs to account for the order of words, and to establish how the words present relate to each other. The solution we propose…

Computation and Language · Computer Science 2021-03-04 Diego Maupomé , Marie-Jean Meurs

Event extraction (EE) is the task of identifying interested event mentions from text. Conventional efforts mainly focus on the supervised setting. However, these supervised models cannot generalize to event types out of the pre-defined…

Computation and Language · Computer Science 2022-11-15 Hongming Zhang , Wenlin Yao , Dong Yu
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