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We analyse the issues involved in the management and mining of astrophysical data. The traditional approach to data management in the astrophysical field is not able to keep up with the increasing size of the data gathered by modern…

Databases · Computer Science 2007-05-23 M. Frailis , A. De Angelis , V. Roberto

This paper reports on modern approaches in Information Extraction (IE) and its two main sub-tasks of Named Entity Recognition (NER) and Relation Extraction (RE). Basic concepts and the most recent approaches in this area are reviewed, which…

Information Retrieval · Computer Science 2018-03-16 Parisa Naderi Golshan , HosseinAli Rahmani Dashti , Shahrzad Azizi , Leila Safari

AI and deep learning techniques are beginning to play an increasing role in astronomy as a necessary tool to deal with the data avalanche. Here we describe an application for finding resolved Planetary Nebulae (PNe) in crowded, wide-field,…

Instrumentation and Methods for Astrophysics · Physics 2023-11-07 Ruiqi Sun , Yushan Li , Quentin Parker , Jiaxin Li , Xu Li , Liang Cao , Peng Jia

Named Entity Disambiguation (NED) refers to the task of resolving multiple named entity mentions in a document to their correct references in a knowledge base (KB) (e.g., Wikipedia). In this paper, we propose a novel embedding method…

Computation and Language · Computer Science 2016-06-13 Ikuya Yamada , Hiroyuki Shindo , Hideaki Takeda , Yoshiyasu Takefuji

Unsupervised anomaly detection (AD) is critical for a wide range of practical applications, from network security to health and medical tools. Due to the diversity of problems, no single algorithm has been found to be superior for all AD…

Machine Learning · Computer Science 2023-05-18 Małgorzata Gutowska , Suzanne Little , Andrew McCarren

Extreme precision radial velocity (EPRV) surveys usually require extensive observational baselines to confirm planetary candidates, making them resource-intensive. Traditionally, periodograms are used to identify promising candidate signals…

Earth and Planetary Astrophysics · Physics 2025-10-09 Anoop Gavankar , Tanish Mittal , Joe Ninan , Shravan Hanasoge

Astronomical knowledge entities, such as celestial object identifiers, are crucial for literature retrieval and knowledge graph construction, and other research and applications in the field of astronomy. Traditional methods of extracting…

Instrumentation and Methods for Astrophysics · Physics 2024-01-18 Wujun Shao , Pengli Ji , Dongwei Fan , Yaohua Hu , Xiaoran Yan , Chenzhou Cui , Linying Mi , Lang Chen , Rui Zhang

The exponential growth of astronomical literature poses significant challenges for researchers navigating and synthesizing general insights or even domain-specific knowledge. We present Pathfinder, a machine learning framework designed to…

Astronomical outliers, such as unusual, rare or unknown types of astronomical objects or phenomena, constantly lead to the discovery of genuinely unforeseen knowledge in astronomy. More unpredictable outliers will be uncovered in principle…

Computer Vision and Pattern Recognition · Computer Science 2022-08-03 Yang Han , Zhiqiang Zou , Nan Li , Yanli Chen

The proper classification of plasma regions in near-Earth space is crucial to perform unambiguous statistical studies of fundamental plasma processes such as shocks, magnetic reconnection, waves and turbulence, jets and their combinations.…

The generalization of machine learning (ML) models to out-of-distribution (OOD) examples remains a key challenge in extracting information from upcoming astronomical surveys. Interpretability approaches are a natural way to gain insights…

Instrumentation and Methods for Astrophysics · Physics 2023-12-01 Yash Gondhalekar , Sultan Hassan , Naomi Saphra , Sambatra Andrianomena

Jets from boosted heavy particles have a typical angular scale which can be used to distinguish them from QCD jets. We introduce a machine learning strategy for jet substructure analysis using a spectral function on the angular scale. The…

High Energy Physics - Phenomenology · Physics 2018-10-31 Sung Hak Lim , Mihoko M. Nojiri

In many applications, Neural Nets (NNs) have classification performance on par or even exceeding human capacity. Moreover, it is likely that NNs leverage underlying features that might differ from those humans perceive to classify. Can we…

Computer Vision and Pattern Recognition · Computer Science 2023-12-01 Haowen Guan , Xuan Zhao , Zishi Wang , Zhiyang Li , Julia Kempe

The Astrophysics Data System (ADS) provides an extensive system of links between the literature and other on-line information. Recently, the journals of the American Astronomical Society (AAS) and a group of NASA data centers have…

Utilizing machine learning techniques has always required choosing hyperparameters. This is true whether one uses a classical technique such as a KNN or very modern neural networks such as Deep Learning. Though in many applications,…

Machine Learning · Computer Science 2024-12-12 Edward Ratner , Elliot Farmer , Brandon Warner , Christopher Douglas , Amaury Lendasse

In the preparation for ESA's Euclid mission and the large amount of data it will produce, we train deep convolutional neural networks on Euclid simulations classify solar system objects from other astronomical sources. Using transfer…

Instrumentation and Methods for Astrophysics · Physics 2019-03-15 Maggie Lieu , Luca Conversi , Bruno Altieri , Benoît Carry

Four years after the last LISA meeting, the NASA Astrophysics Data System (ADS) finds itself in the middle of major changes to the infrastructure and contents of its database. In this paper we highlight a number of features of great…

Machine learning has rapidly become a tool of choice for the astronomical community. It is being applied across a wide range of wavelengths and problems, from the classification of transients to neural network emulators of cosmological…

The existing search tools for exploring the NASA Astrophysics Data System (ADS) can be quite rich and empowering (e.g., similar and trending operators), but researchers are not yet allowed to fully leverage semantic search. For example, a…