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相关论文: Empirical Studies on Symbolic Aggregation Approxim…

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The Symbolic Aggregate approXimation (SAX) is a very popular symbolic dimensionality reduction technique of time series data, as it has several advantages over other dimensionality reduction techniques. One of its major advantages is its…

机器学习 · 计算机科学 2020-10-05 Muhammad Marwan Muhammad Fuad

This paper deals with symbolic time series representation. It builds up on the popular mapping technique Symbolic Aggregate approXimation algorithm (SAX), which is extensively utilized in sequence classification, pattern mining, anomaly…

机器学习 · 计算机科学 2022-05-27 Matej Kloska , Viera Rozinajova

Processing and analyzing time series data\-sets have become a central issue in many domains requiring data management systems to support time series as a native data type. A crucial prerequisite of these systems is time series matching,…

数据库 · 计算机科学 2021-10-12 Lars Kegel , Claudio Hartmann , Maik Thiele , Wolfgang Lehner

Due to the importance of the lower bounding distances and the attractiveness of symbolic representations, the family of symbolic aggregate approximations (SAX) has been used extensively for encoding time series data. However, typical…

信息检索 · 计算机科学 2024-04-24 Konstantinos Bountrogiannis , George Tzagkarakis , Panagiotis Tsakalides

Symbolic Aggregate approXimation (SAX) is a common dimensionality reduction approach for time-series data which has been employed in a variety of domains, including classification and anomaly detection in time-series data. Domains also…

计算机视觉与模式识别 · 计算机科学 2024-05-31 Suzana Veljanovska , Hans Dermot Doran

Time series classification is an important problem in data mining with several applications in different domains. Because time series data are usually high dimensional, dimensionality reduction techniques have been proposed as an efficient…

机器学习 · 计算机科学 2020-10-05 Muhammad Marwan Muhammad Fuad

Symbolic Aggregate approximation (SAX) is a classical symbolic approach in many time series data mining applications. However, SAX only reflects the segment mean value feature and misses important information in a segment, namely the trend…

机器学习 · 计算机科学 2019-05-03 Yufeng Yu , Yuelong Zhu , Dingsheng Wan , Qun Zhao , Huan Liu

Time series mining is an important branch of data mining, as time series data is ubiquitous and has many applications in several domains. The main task in time series mining is classification. Time series representation methods play an…

机器学习 · 计算机科学 2021-12-28 Muhammad Marwan Muhammad Fuad

The similarity search problem is one of the main problems in time series data mining. Traditionally, this problem was tackled by sequentially comparing the given query against all the time series in the database, and returning all the time…

数据库 · 计算机科学 2013-01-25 Muhammad Marwan Muhammad Fuad , Pierre-François Marteau

Statistical information is ubiquitous but drawing valid conclusions from it is prohibitively hard. We explain how knowledge graph embeddings can be used to approximate probabilistic inference efficiently using the example of Statistical EL…

人工智能 · 计算机科学 2024-07-17 Yuqicheng Zhu , Nico Potyka , Bo Xiong , Trung-Kien Tran , Mojtaba Nayyeri , Evgeny Kharlamov , Steffen Staab

In time series analysis research there is a strong interest in discrete representations of real valued data streams. One approach that emerged over a decade ago and is still considered state-of-the-art is the Symbolic Aggregate…

数据结构与算法 · 计算机科学 2012-10-19 Matthew Butler , Dimitar Kazakov

Satellite Image Time Series (SITS) are an important source of information for studying land occupation and its evolution. Indeed, the very large volumes of digital data stored, usually are not ready to a direct analysis. In order to both…

数据库 · 计算机科学 2016-06-27 Dalila Attaf , Djamila Hamdadou , Sidahmed Benabderrahmane , Aicha Lafrid

Bio-inspired optimization algorithms have been gaining more popularity recently. One of the most important of these algorithms is particle swarm optimization (PSO). PSO is based on the collective intelligence of a swam of particles. Each…

神经与进化计算 · 计算机科学 2013-12-09 Muhammad Marwan Muhammad Fuad

Information-theoretic quantities play a crucial role in understanding non-linear relationships between random variables and are widely used across scientific disciplines. However, estimating these quantities remains an open problem,…

机器学习 · 计算机科学 2025-02-28 Alberto Foresti , Giulio Franzese , Pietro Michiardi

Deep learning has made significant advances in creating efficient representations of time series data by automatically identifying complex patterns. However, these approaches lack interpretability, as the time series is transformed into a…

机器学习 · 计算机科学 2023-10-26 Etienne Le Naour , Ghislain Agoua , Nicolas Baskiotis , Vincent Guigue

Understanding temporal patterns in online search behavior is crucial for real-time marketing and trend forecasting. Google Trends offers a rich proxy for public interest, yet the high dimensionality and noise of its time-series data present…

机器学习 · 统计学 2025-06-25 Pola Bereta , Ioannis Diamantis

Recent semantic communication methods explore effective ways to expand the communication paradigm and improve the system performance of the communication systems. Nonetheless, the common problem of these methods is that the essence of…

信息论 · 计算机科学 2024-01-29 Zijian Liang , Kai Niu , Jin Xu , Ping Zhang

We present an unsupervised approach for discovering semantic representations of mathematical equations. Equations are challenging to analyze because each is unique, or nearly unique. Our method, which we call equation embeddings, finds good…

机器学习 · 统计学 2018-03-28 Kriste Krstovski , David M. Blei

Traditional knowledge graph (KG) embedding methods aim to represent entities and relations in a low-dimensional space, primarily focusing on static graphs. However, real-world KGs are dynamically evolving with the constant addition of…

人工智能 · 计算机科学 2025-08-18 Yifei Li , Lingling Zhang , Hang Yan , Tianzhe Zhao , Zihan Ma , Muye Huang , Jun Liu

To extract essential information from complex data, computer scientists have been developing machine learning models that learn low-dimensional representation mode. From such advances in machine learning research, not only computer…

人工智能 · 计算机科学 2024-06-18 Akira Matsui , Emilio Ferrara
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