Search Results for author: Kari Torkkola

Found 9 papers, 3 papers with code

A shared-revenue Bertrand game

no code implementations11 Feb 2025 Raj Pabari, Udaya Ghai, Dominique Perrault-Joncas, Kari Torkkola, Orit Ronen, Dhruv Madeka, Dean Foster, Omer Gottesman

We introduce and analyze a variation of the Bertrand game in which the revenue is shared between two players.

Using Pre-trained LLMs for Multivariate Time Series Forecasting

no code implementations10 Jan 2025 Malcolm L. Wolff, Shenghao Yang, Kari Torkkola, Michael W. Mahoney

Pre-trained Large Language Models (LLMs) encapsulate large amounts of knowledge and take enormous amounts of compute to train.

Decoder Multivariate Time Series Forecasting +1

Neural Coordination and Capacity Control for Inventory Management

no code implementations24 Sep 2024 Carson Eisenach, Udaya Ghai, Dhruv Madeka, Kari Torkkola, Dean Foster, Sham Kakade

This paper addresses the capacitated periodic review inventory control problem, focusing on a retailer managing multiple products with limited shared resources, such as storage or inbound labor at a facility.

Deep Reinforcement Learning Management

Learning an Inventory Control Policy with General Inventory Arrival Dynamics

no code implementations26 Oct 2023 Sohrab Andaz, Carson Eisenach, Dhruv Madeka, Kari Torkkola, Randy Jia, Dean Foster, Sham Kakade

In this paper we address the problem of learning and backtesting inventory control policies in the presence of general arrival dynamics -- which we term as a quantity-over-time arrivals model (QOT).

Scaling Laws for Imitation Learning in Single-Agent Games

1 code implementation18 Jul 2023 Jens Tuyls, Dhruv Madeka, Kari Torkkola, Dean Foster, Karthik Narasimhan, Sham Kakade

Inspired by recent work in Natural Language Processing (NLP) where "scaling up" has resulted in increasingly more capable LLMs, we investigate whether carefully scaling up model and data size can bring similar improvements in the imitation learning setting for single-agent games.

Atari Games Imitation Learning +1

Deep Inventory Management

no code implementations6 Oct 2022 Dhruv Madeka, Kari Torkkola, Carson Eisenach, Anna Luo, Dean P. Foster, Sham M. Kakade

This work provides a Deep Reinforcement Learning approach to solving a periodic review inventory control system with stochastic vendor lead times, lost sales, correlated demand, and price matching.

Deep Reinforcement Learning Management +3

Deep Generative Quantile-Copula Models for Probabilistic Forecasting

no code implementations24 Jul 2019 Ruofeng Wen, Kari Torkkola

We introduce a new category of multivariate conditional generative models and demonstrate its performance and versatility in probabilistic time series forecasting and simulation.

Probabilistic Time Series Forecasting quantile regression +1

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