Dissertation/Thesis Abstract

Spatio-temporal modeling of Twitter data
by Jiang, Nan, Ph.D., Stevens Institute of Technology, 2015, 68; 10186877
Abstract (Summary)

Twitter is among the most popular social media networking platforms. Properties of tweets (Twitter data) such as volume, content, context, velocity, spatial location of tweets, etc. are stochastic in nature. In this dissertation, we investigate a number of spatio-temporal statistical models for tweets.

The original contributions of this dissertation are as follows:

1. Fractal modeling of tweet volume revealed several dynamic hierarchical relationships. These mathematical relationships were derived for the hierarchical connections among the number of tweets, population of cities of origins, areas of these cities, etc. Studying the parameters of these models revealed several insights, such as: will a Twitter topic have a broader appeal across several geographically distributed cities, or will it have a limited influence concentrated over only a few cities.

2. Using a combination of spatial data clustering and partitioning, the geographic circles of influences of a Twitter topic and the source cities that influence the topic were identified. Data collected on a number of Twitter topics corroborates this observation.

3. A wavelet transform domain clustering for Twitter users' temporal activities is useful in modeling tweet rate forecasting. We propose a model that connects the tweeting rate and the urban population, which is useful in forecasting tweet rates. A data-driven comparison between the forecasting model and Holt-Winters method indicated that the proposed forecasting model has a lower forecasting error rate on average. Combining this forecasting model with the spatial model provided additional insights.

Indexing (document details)
Advisor: Chandramouli, Rajarathnam
Commitee: Ganesan, Narayan, Man, Hong, Prasad, M.G., Subbalakshmi, K.P.
School: Stevens Institute of Technology
Department: Electrical Engineer
School Location: United States -- New Jersey
Source: DAI-B 78/05(E), Dissertation Abstracts International
Source Type: DISSERTATION
Subjects: Electrical engineering
Keywords: Social media, Spatio-temporal modeling
Publication Number: 10186877
ISBN: 9781369369649
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