4 papers
RMM: An R Package for Customer Choice-Based Revenue Management Models for Sales Transaction Data
Chul Kim, Sanghoon Cho, Jongho Im
We develop an R package RMM to implement a Conditional Logit (CL) model using the Robust Demand Estimation (RDE) method introduced in Cho et al. (2020), a customer choice-based $\t…
Identification enhanced generalised linear model estimation with nonignorable missing outcomes
Kenji Beppu, Jinung Choi, Kosuke Morikawa +1
Missing data often result in undesirable bias and loss of efficiency. These issues become substantial when the response mechanism is nonignorable, meaning that the response model d…
Quantile Regression with Multiple Proxy Variables
Dongyoung Go, Jongho Im, Ick Hoon Jin
Data integration has become increasingly popular owing to the availability of multiple data sources. This study considered quantile regression estimation when a key covariate had m…
Confirmatory Aspect-based Opinion Mining Processes
Jongho Im, Taikgun Song, Youngsu Lee +1
A new opinion extraction method is proposed to summarize unstructured, user-generated content (i.e., online customer reviews) in the fixed topic domains. To differentiate the curre…