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ACM Transactions on Management Information Systems (TMIS), Volume 3 Issue 1, April 2012

Design science and the accumulation of knowledge in the information systems discipline
Fred Niederman, Salvatore T. March
Article No.: 1
DOI: 10.1145/2151163.2151164

Design science has emerged as an important research paradigm in the information systems (IS) discipline, and much has been written on how it should be conducted and evaluated (e.g., Hevner et al. [2004]; Walls et al. [1992]; Vaishnavi and Kuechler...

Enhancement of recall within technology-mediated teams through the use of online visual artifacts
K. Asli Basoglu, Mark A. Fuller, Joseph S. Valacich
Article No.: 2
DOI: 10.1145/2151163.2151165

Given the distributed nature of modern organizations, the use of technology-mediated teams is a critical aspect of their success. These teams use various media that are arguably less personal than face-to-face communication. One factor influencing...

Impact of data characteristics on recommender systems performance
Gediminas Adomavicius, Jingjing Zhang
Article No.: 3
DOI: 10.1145/2151163.2151166

This article investigates the impact of rating data characteristics on the performance of several popular recommendation algorithms, including user-based and item-based collaborative filtering, as well as matrix factorization. We focus on three...

Discovery and diagnosis of behavioral transitions in patient event streams
William N. Robinson, Arash Akhlaghi, Tianjie Deng, Ali Raza Syed
Article No.: 4
DOI: 10.1145/2151163.2151167

Users with cognitive impairments use assistive technology (AT) as part of a clinical treatment plan. As the AT interface is manipulated, data stream mining techniques are used to monitor user goals. In this context, real-time data mining aids...

Deciphering word-of-mouth in social media: Text-based metrics of consumer reviews
Zhu Zhang, Xin Li, Yubo Chen
Article No.: 5
DOI: 10.1145/2151163.2151168

Enabled by Web 2.0 technologies, social media provide an unparalleled platform for consumers to share their product experiences and opinions through word-of-mouth (WOM) or consumer reviews. It has become increasingly important to understand how...

How virtual teams use their virtual workspace to coordinate knowledge
Arvind Malhotra, Ann Majchrzak
Article No.: 6
DOI: 10.1145/2151163.2151169

Virtual team members increasingly rely on virtual workspace tools to coordinate knowledge that each individual brings to the team. How the use of these tools affects knowledge coordination within virtual teams is not well understood. We...