Generative Discrete Event Process Simulation for Hidden Markov Models to Predict Competitor Time-to-Market

• URL: http://arxiv.org/abs/2411.04266v1
• Date: Wed, 06 Nov 2024 21:17:38 GMT
• Title: Generative Discrete Event Process Simulation for Hidden Markov Models to Predict Competitor Time-to-Market
• Authors: Nandakishore Santhi, Stephan Eidenbenz, Brian Key, George Tompkins,
• Abstract summary: We show how Firm A can build a model that predicts when Firm B will be ready to sell its product. We study the question of how many resource observations Firm A requires in order to accurately assess the current state of development at Firm B.
• Score: 0.0
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• Abstract: We study the challenge of predicting the time at which a competitor product, such as a novel high-capacity EV battery or a new car model, will be available to customers; as new information is obtained, this time-to-market estimate is revised. Our scenario is as follows: We assume that the product is under development at a Firm B, which is a competitor to Firm A; as they are in the same industry, Firm A has a relatively good understanding of the processes and steps required to produce the product. While Firm B tries to keep its activities hidden (think of stealth-mode for start-ups), Firm A is nevertheless able to gain periodic insights by observing what type of resources Firm B is using. We show how Firm A can build a model that predicts when Firm B will be ready to sell its product; the model leverages knowledge of the underlying processes and required resources to build a Parallel Discrete Simulation (PDES)-based process model that it then uses as a generative model to train a Hidden Markov Model (HMM). We study the question of how many resource observations Firm A requires in order to accurately assess the current state of development at Firm B. In order to gain general insights into the capabilities of this approach, we study the effect of different process graph densities, different densities of the resource-activity maps, etc., and also scaling properties as we increase the number resource counts. We find that in most cases, the HMM achieves a prediction accuracy of 70 to 80 percent after 20 (daily) observations of a production process that lasts 150 days on average and we characterize the effects of different problem instance densities on this prediction accuracy. Our results give insight into the level of market knowledge required for accurate and early time-to-market prediction.

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