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Embedders play a central role in machine learning, projecting any object into numerical representations that can, in turn, be leveraged to perform various downstream tasks. The evaluation of embedding models typically depends on…

Machine Learning · Computer Science 2024-11-19 Maxime Darrin , Philippe Formont , Ismail Ben Ayed , Jackie CK Cheung , Pablo Piantanida

Identifying companies with similar profiles is a core task in finance with a wide range of applications in portfolio construction, asset pricing and risk attribution. When a rigorous definition of similarity is lacking, financial analysts…

Statistical Finance · Quantitative Finance 2023-08-17 Dimitrios Vamvourellis , Máté Toth , Snigdha Bhagat , Dhruv Desai , Dhagash Mehta , Stefano Pasquali

Networks are one of the most powerful structures for modeling problems in the real world. Downstream machine learning tasks defined on networks have the potential to solve a variety of problems. With link prediction, for instance, one can…

Machine Learning · Computer Science 2019-11-27 Nino Arsov , Georgina Mirceva

Constructing latent vector representation for nodes in a network through embedding models has shown its practicality in many graph analysis applications, such as node classification, clustering, and link prediction. However, despite the…

Human-Computer Interaction · Computer Science 2018-08-29 Quan Li , Kristanto Sean Njotoprawiro , Hammad Haleem , Qiaoan Chen , Chris Yi , Xiaojuan Ma

We address the problem of tuning word embeddings for specific use cases and domains. We propose a new method that automatically combines multiple domain-specific embeddings, selected from a wide range of pre-trained domain-specific…

Computation and Language · Computer Science 2019-09-06 Laura Rettig , Julien Audiffren , Philippe Cudré-Mauroux

The number of academic papers being published is increasing exponentially in recent years, and recommending adequate citations to assist researchers in writing papers is a non-trivial task. Conventional approaches may not be optimal, as the…

Information Retrieval · Computer Science 2020-01-09 Yang Zhang , Qiang Ma

Recently, Le and Mikolov (2014) proposed doc2vec as an extension to word2vec (Mikolov et al., 2013a) to learn document-level embeddings. Despite promising results in the original paper, others have struggled to reproduce those results. This…

Computation and Language · Computer Science 2016-12-19 Jey Han Lau , Timothy Baldwin

Networks have been widely used as the data structure for abstracting real-world systems as well as organizing the relations among entities. Network embedding models are powerful tools in mapping nodes in a network into continuous…

Social and Information Networks · Computer Science 2019-05-28 Ninghao Liu , Qiaoyu Tan , Yuening Li , Hongxia Yang , Jingren Zhou , Xia Hu

This research proposes a cutting-edge ensemble deep learning framework for stock price prediction by combining three advanced neural network architectures: The particular areas of interest for the research include but are not limited to:…

Computational Finance · Quantitative Finance 2025-03-31 Anindya Sarkar , G. Vadivu

This work presents a Convolutional Neural Network (CNN) for the prediction of next-day stock fluctuations using company-specific news headlines. Experiments to evaluate model performance using various configurations of word-embeddings and…

Computation and Language · Computer Science 2020-06-23 Jonathan Readshaw , Stefano Giani

Automatic source code analysis in key areas of software engineering, such as code security, can benefit from Machine Learning (ML). However, many standard ML approaches require a numeric representation of data and cannot be applied directly…

Machine Learning · Computer Science 2020-04-08 Rhys Compton , Eibe Frank , Panos Patros , Abigail Koay

Over the past decade, recommender systems have experienced a surge in popularity. Despite notable progress, they grapple with challenging issues, such as high data dimensionality and sparseness. Representing users and items as…

Information Retrieval · Computer Science 2025-07-28 Pedro R. Pires , Tiago A. Almeida

Stock market indices serve as fundamental market measurement that quantify systematic market dynamics. However, accurate index price prediction remains challenging, primarily because existing approaches treat indices as isolated time series…

Statistical Finance · Quantitative Finance 2025-06-05 Junzhe Jiang , Chang Yang , Xinrun Wang , Bo Li

Company fundamentals are key to assessing companies' financial and overall success and stability. Forecasting them is important in multiple fields, including investing and econometrics. While statistical and contemporary machine learning…

Statistical Finance · Quantitative Finance 2025-06-04 Felix Divo , Eric Endress , Kevin Endler , Kristian Kersting , Devendra Singh Dhami

Recent works on representation learning for graph structured data predominantly focus on learning distributed representations of graph substructures such as nodes and subgraphs. However, many graph analytics tasks such as graph…

Artificial Intelligence · Computer Science 2017-07-18 Annamalai Narayanan , Mahinthan Chandramohan , Rajasekar Venkatesan , Lihui Chen , Yang Liu , Shantanu Jaiswal

Understanding intrinsic patterns and predicting spatiotemporal characteristics of cities require a comprehensive representation of urban neighborhoods. Existing works relied on either inter- or intra-region connectivities to generate…

Machine Learning · Computer Science 2020-01-31 Zhecheng Wang , Haoyuan Li , Ram Rajagopal

Prediction of future movement of stock prices has always been a challenging task for the researchers. While the advocates of the efficient market hypothesis (EMH) believe that it is impossible to design any predictive framework that can…

Statistical Finance · Quantitative Finance 2021-09-03 Sidra Mehtab , Jaydip Sen

Embedding-based retrieval methods construct vector indices to search for document representations that are most similar to the query representations. They are widely used in document retrieval due to low latency and decent recall…

Embedding learning transforms discrete data entities into continuous numerical representations, encoding features/properties of the entities. Despite the outstanding performance reported from different embedding learning algorithms, few…

Machine Learning · Computer Science 2023-08-04 Yan Zheng , Junpeng Wang , Chin-Chia Michael Yeh , Yujie Fan , Huiyuan Chen , Liang Wang , Wei Zhang

Multimodal embedding models have been crucial in enabling various downstream tasks such as semantic similarity, information retrieval, and clustering over different modalities. However, existing multimodal embeddings like VLM2Vec, E5-V, GME…

Computer Vision and Pattern Recognition · Computer Science 2025-07-08 Rui Meng , Ziyan Jiang , Ye Liu , Mingyi Su , Xinyi Yang , Yuepeng Fu , Can Qin , Zeyuan Chen , Ran Xu , Caiming Xiong , Yingbo Zhou , Wenhu Chen , Semih Yavuz