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ADVANCES IN MACHINE LEARNING METHODOLOGIES FOR BUSINESS ANALYTICS, VIDEO SUPER-RESOLUTION, AND DOCUMENT CLASSIFICATION

thesis
posted on 2024-04-26, 20:31 authored by Tianqi WangTianqi Wang

This dissertation encompasses three studies in distinct yet impactful domains: B2B marketing, real-time video super-resolution (VSR), and smart office document routing systems. In the B2B marketing sphere, the study addresses the extended buying cycle by developing an algorithm for customer data aggregation and employing a CatBoost model to predict potential purchases with 91% accuracy. This approach enables the identification of high-potential
customers for targeted marketing campaigns, crucial for optimizing marketing efforts.
Transitioning to multimedia enhancement, the dissertation presents a lightweight recurrent network for real-time VSR. Developed for applications requiring high-quality video with low latency, such as video conferencing and media playback, this model integrates an optical flow estimation network for motion compensation and leverages a hidden space for the propagation of long-term information. The model demonstrates high efficiency in VSR. A
comparative analysis of motion estimation techniques underscores the importance of minimizing information loss.
The evolution towards smart office environments underscores the importance of an efficient document routing system, conceptualized as an online class-incremental image classification challenge. This research introduces a one-versus-rest parametric classifier, complemented by two updating algorithms based on passive-aggressiveness, and adaptive thresholding methods to manage low-confidence predictions. Tested on 710 labeled real document
images, the method reports a cumulative accuracy rate of approximately 97%, showcasing the effectiveness of the chosen aggressiveness parameter through various experiments.

History

Degree Type

  • Doctor of Philosophy

Department

  • Electrical and Computer Engineering

Campus location

  • West Lafayette

Advisor/Supervisor/Committee Chair

Jan P. Allebach

Additional Committee Member 2

Qian Lin

Additional Committee Member 3

Christopher G. Brinton

Additional Committee Member 4

Many L. Comer

Additional Committee Member 5

Michael D. Zoltowski

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