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Collecting annotated data for semantic segmentation is time-consuming and hard to scale up. In this paper, we for the first time propose a unified framework, termed as Multi-Dataset Pretraining, to take full advantage of the fragmented…

计算机视觉与模式识别 · 计算机科学 2021-06-09 Bowen Shi , Xiaopeng Zhang , Haohang Xu , Wenrui Dai , Junni Zou , Hongkai Xiong , Qi Tian

Data analytics using machine learning (ML) has become ubiquitous in science, business intelligence, journalism and many other domains. While a lot of work focuses on reducing the training cost, inference runtime and storage cost of ML…

数据库 · 计算机科学 2018-05-30 Lingjiao Chen , Paraschos Koutris , Arun Kumar

Adapting language models to new tasks through continued pretraining faces a fundamental trade-off: models must learn new capabilities while avoiding catastrophic forgetting of existing knowledge. While prior work has studied synthetic data…

机器学习 · 计算机科学 2025-10-15 Urs Spiegelhalter , Jörg K. H. Franke , Frank Hutter

Data selection for finetuning Large Language Models (LLMs) can be framed as a budget-constrained optimization problem: maximizing a model's downstream performance under a strict training data budget. Solving this problem is generally…

机器学习 · 计算机科学 2025-10-01 Animesh Jha , Harshit Gupta , Ananjan Nandi

When solving decision and optimisation problems, many competing algorithms (model and solver choices) have complementary strengths. Typically, there is no single algorithm that works well for all instances of a problem. Automated algorithm…

机器学习 · 计算机科学 2025-06-11 Erdem Kuş , Özgür Akgün , Nguyen Dang , Ian Miguel

This paper explores neural network-based approaches for algorithmic trading in cryptocurrency markets. Our approach combines multi-timeframe trend analysis with high-frequency direction prediction networks, achieving positive risk-adjusted…

计算金融 · 定量金融 2025-08-05 Wěi Zhāng

Deep Learning models have become dominant in tackling financial time-series analysis problems, overturning conventional machine learning and statistical methods. Most often, a model trained for one market or security cannot be directly…

机器学习 · 计算机科学 2022-07-26 Mostafa Shabani , Dat Thanh Tran , Juho Kanniainen , Alexandros Iosifidis

Data selection can reduce the amount of training data needed to finetune LLMs; however, the efficacy of data selection scales directly with its compute. Motivated by the practical challenge of compute-constrained finetuning, we consider the…

机器学习 · 计算机科学 2025-04-09 Junjie Oscar Yin , Alexander M. Rush

Synthetic data is a standard component in training large language models, yet systematic comparisons across design dimensions, including rephrasing strategy, generator model, and source data, remain absent. We conduct extensive controlled…

The scaling of Large Language Models (LLMs) is increasingly limited by data quality. Most methods handle data mixing and sample selection separately, which can break the structure in code corpora. We introduce \textbf{UniGeM}, a framework…

机器学习 · 计算机科学 2026-02-04 Changhao Wang , Yunfei Yu , Xinhao Yao , Jiaolong Yang , Riccardo Cantoro , Chaobo Li , Qing Cui , Jun Zhou

Attention-based sequence-to-sequence modeling provides a powerful and elegant solution for applications that need to map one sequence to a different sequence. Its success heavily relies on the availability of large amounts of training data.…

计算与语言 · 计算机科学 2021-02-12 Yun Tang , Juan Pino , Changhan Wang , Xutai Ma , Dmitriy Genzel

The optimal solution to an optimization problem depends on the problem's objective function, constraints, and size. While deep neural networks (DNNs) have proven effective in solving optimization problems, changes in the problem's size,…

This paper investigates the integration of large language models (LLMs) as reasoning agents in repeated spectrum auctions within heterogeneous networks (HetNets). While auction-based mechanisms have been widely employed for efficient…

网络与互联网体系结构 · 计算机科学 2026-03-06 Ismail Lotfi , Ali Ghrayeb , Samson Lasaulce , Merouane Debbah

Data collection is a critical component of modern statistical and machine learning pipelines, particularly when data must be gathered from multiple heterogeneous sources to study a target population of interest. In many use cases, such as…

机器学习 · 统计学 2026-02-23 Michael O. Harding , Vikas Singh , Kirthevasan Kandasamy

We consider the problem of dynamic buying and selling of shares from a collection of $N$ stocks with random price fluctuations. To limit investment risk, we place an upper bound on the total number of shares kept at any time. Assuming that…

投资组合管理 · 定量金融 2009-09-23 Michael J. Neely

A diverse array of reasoning strategies has been proposed to elicit the capabilities of large language models. However, in this paper, we point out that traditional evaluations which focus solely on performance metrics miss a key factor:…

计算与语言 · 计算机科学 2024-06-18 Junlin Wang , Siddhartha Jain , Dejiao Zhang , Baishakhi Ray , Varun Kumar , Ben Athiwaratkun

The decisions traders make to buy or sell an asset depend on various analyses, with expertise required to identify patterns that can be exploited for profit. In this paper we identify novel features extracted from emergent and…

统计金融 · 定量金融 2024-09-09 Gabriel Rodrigues Palma , Mariusz Skoczeń , Phil Maguire

We present a model that can perform multiple vision tasks and can be adapted to other downstream tasks efficiently. Despite considerable progress in multi-task learning, most efforts focus on learning from multi-label data: a single image…

计算机视觉与模式识别 · 计算机科学 2023-06-30 Zitian Chen , Mingyu Ding , Yikang Shen , Wei Zhan , Masayoshi Tomizuka , Erik Learned-Miller , Chuang Gan

Hand-tagged training data is essential to many machine learning tasks. However, training data quality control has received little attention in the literature, despite data quality varying considerably with the tagging exercise. We propose…

机器学习 · 计算机科学 2025-12-24 Leslie Barrett , Michael W. Sherman

This study aims to address the challenges of futures price prediction in high-frequency trading (HFT) by proposing a continuous learning factor predictor based on graph neural networks. The model integrates multi-factor pricing theories…

机器学习 · 计算机科学 2023-12-20 Min Hu , Zhizhong Tan , Bin Liu , Guosheng Yin
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