Online financial markets can be represented as complex systems where trading dynamics can be captured and characterized at different resolutions and time scales. In this work, we develop a methodology based on non-negative tensor factorization (NTF) aimed at extracting and revealing the multi-timescale trading dynamics…
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Paper proposes a deep reinforcement learning model for forex trading that considers transaction costs.
Online trading platforms manipulate profits and losses, causing 82% of retail traders to lose money.
Paper develops a fast Bayesian method to predict toxic trades in financial transactions.
Agent learns to trade currency pairs with improved risk management.
Brokerage algorithm learns from context to minimize trading regret.
Prospect theory is widely viewed as the best available descriptive model of how people evaluate risk in experimental settings. According to prospect theory, people are risk-averse with respect to gains and risk-seeking with respect to losses, a phenomenon called "loss aversion". Despite of the fact that prospect theory…
Batch Thompson Sampling reduces exploration-exploitation trade-off in online decision making.
The paper explores trade-offs between regret and variance in online learning algorithms.
Paper presents a deep reinforcement learning algorithm for online trading without offline training.
Maximizing trading volume in online learning framework between traders.
We study an online multi-task learning setting, in which instances of related tasks arrive sequentially, and are handled by task-specific online learners. We consider an algorithmic framework to model the relationship of these tasks via a set of convex constraints. To exploit this relationship, we design a novel algori…
We use an adversarial expert based online learning algorithm to learn the optimal parameters required to maximise wealth trading zero-cost portfolio strategies. The learning algorithm is used to determine the relative population dynamics of technical trading strategies that can survive historical back-testing as well a…
This paper examines how wash traders exploit market conditions in Bitcoin, finding strategic timing and spillover effects.
This research aims to identify how Bitcoin-related news publications and online discourse are expressed in Bitcoin exchange movements of price and volume. Being inherently digital, all Bitcoin-related fundamental data (from exchanges, as well as transactional data directly from the blockchain) is available online, some…
Statistical arbitrage is a class of financial trading strategies using mean reversion models. The corresponding techniques rely on a number of assumptions which may not hold for general non-stationary stochastic processes. This paper presents an alternative technique for statistical arbitrage based on online learning w…
FPML algorithm reduces regret by limiting the number of arms chosen per round.
We present a universal algorithm for online trading in Stock Market which performs asymptotically at least as good as any stationary trading strategy that computes the investment at each step using a fixed function of the side information that belongs to a given RKHS (Reproducing Kernel Hilbert Space). Using a universa…
In this paper we apply evolutionary optimization techniques to compute optimal rule-based trading strategies based on financial sentiment data. The sentiment data was extracted from the social media service StockTwits to accommodate the level of bullishness or bearishness of the online trading community towards certain…
We present a unified framework for Batch Online Learning (OL) for Click Prediction in Search Advertisement. Machine Learning models once deployed, show non-trivial accuracy and calibration degradation over time due to model staleness. It is therefore necessary to regularly update models, and do so automatically. This p…
We present an online approach to portfolio selection. The motivation is within the context of algorithmic trading, which demands fast and recursive updates of portfolio allocations, as new data arrives. In particular, we look at two online algorithms: Robust-Exponentially Weighted Least Squares (R-EWRLS) and a regulari…
Improved LSTM cell for high-frequency trading forecasts.
Optimal sampling reduces power grid data analysis costs.
Motivated by the practical challenge in monitoring the performance of a large number of algorithmic trading orders, this paper provides a methodology that leads to automatic discovery of the causes that lie behind a poor trading performance. It also gives theoretical foundations to a generic framework for real-time tra…
Paper develops online statistical inference methods for stochastic optimization using Kiefer-Wolfowitz algorithms.
The study uses machine learning to predict financial market trends.
Spurred by the enthusiasm surrounding the "Big Data" paradigm, the mathematical and algorithmic tools of online optimization have found widespread use in problems where the trade-off between data exploration and exploitation plays a predominant role. This trade-off is of particular importance to several branches and ap…
Study shows observing order book can significantly improve online market making performance.
Editorial discusses nine challenges in modern algorithmic trading.
The aim of this paper is to explain how parameters adjustments can be integrated in the design or the control of automates of trading. Typically, we are interested by the online estimation of the market impacts generated by robots or single orders, and how they/the controller should react in an optimal way to the infor…
A new trading system learns to minimize risk and maximize returns in real markets.
We consider an agent who is involved in a Markov decision process and receives a vector of outcomes every round. Her objective is to maximize a global concave reward function on the average vectorial outcome. The problem models applications such as multi-objective optimization, maximum entropy exploration, and constrai…
Paper proposes a hybrid RL algorithm that combines offline and online data without needing reward info.
R package for online forecasting in various fields.
Cost-Sensitive Online Classification has drawn extensive attention in recent years, where the main approach is to directly online optimize two well-known cost-sensitive metrics: (i) weighted sum of sensitivity and specificity; (ii) weighted misclassification cost. However, previous existing methods only considered firs…
Paper proposes BOCPD for real-time order flow and market impact prediction.
This document constitutes the final report of the contractual activity between Directa SIM and Dipartimento di Automatica e Informatica, Politecnico di Torino, on the research topic titled "quantificazione del rischio di un portafoglio di strumenti finanziari per trading online su device fissi e mobili."
The paper provides bounds on estimation error in a distributed online learning setting.
Bayesian framework for online consensus prediction from expert feedback.
New coverage conditions improve sample efficiency in online reinforcement learning.
Recursive least-squares algorithms often use forgetting factors as a heuristic to adapt to non-stationary data streams. The first contribution of this paper rigorously characterizes the effect of forgetting factors for a class of online Newton algorithms. For exp-concave and strongly convex objectives, the algorithms a…
One important partition of algorithms for controlling the false discovery rate (FDR) in multiple testing is into offline and online algorithms. The first generally achieve significantly higher power of discovery, while the latter allow making decisions sequentially as well as adaptively formulating hypotheses based on …
This paper explores deep learning for financial trading, integrating sentiment analysis.
Develops a method to estimate optimal policy value in online learning.
Develops a new method for online conformal prediction without manual tuning.
New algorithm reduces regret in online portfolio and quantum state learning.
Two new algorithms reduce online kernel regression's computational cost while maintaining optimal regret bounds.
Reinforcement learning crypto agent achieves high returns on Bitcoin derivatives.