Characterizing Scalability Issues in Spreadsheet Software using Online Forums

In traditional usability studies, researchers talk to users of tools to understand their needs and challenges. Insights gained via such interviews offer context, detail, and background. Due to costs in time and money, we are beginning to see a new form of tool interrogation that prioritizes scale, cost, and breadth by utilizing existing data from online forums. In this case study, we set out to apply this method of using online forum data to a specific issue---challenges that users face with Excel spreadsheets. Spreadsheets are a versatile and powerful processing tool if used properly. However, with versatility and power come errors, from both users and the software, which make using spreadsheets less effective. By scraping posts from the website Reddit, we collected a dataset of questions and complaints about Excel. Specifically, we explored and characterized the issues users were facing with spreadsheet software in general, and in particular, as resulting from a large amount of data in their spreadsheets. We discuss the implications of our findings on the design of next-generation spreadsheet software

Applying Quantum Principles to Psychology

This article starts out with a detailed example illustrating the utility of applying quantum probability to psychology. Then it describes several alternative mathematical methods for mapping fundamental quantum concepts (such as state preparation, measurement, state evolution) to fundamental psychological concepts (such as stimulus, response, information processing). For state preparation, we consider both pure states and densities with mixtures. For measurement, we consider projective measurements and positive operator valued measurements. The advantages and disadvantages of each method with respect to applications in psychology are discussed.Comment: one of the aims of this review paper is to attract attention of experts in quantum information and probability (as well as in quantum foundations) to a new rapidly growing field of applications of quantum theory. The paper establishes the correspondence between concepts of quantum theory and concepts of cognitive science and psychology. Submitted to Physica Script

An Analysis of Clustering Algorithms for Big Data

Clustering is an important data mining and tool for reading big records. There are difficulties for making use of clustering strategies to huge data duo to new challenges which might be raised with massive records. As large information is relating to terabytes and peta bytes of information and clustering algorithms are come with excessive computational costs, the question is the way to take care of with this hassle and how to install clustering techniques to big information and get the outcomes in a reasonable time. This study is aimed to review the style and progress of agglomeration algorithms to cope with massive knowledge challenges from first projected algorithms until modern novel solutions. The algorithms and the centered demanding situations for generating stepped forward clustering algorithms are introduced and analyzed, and later on the viable future path for extra superior algorithms are based on computational complexity. In this paper we discuss clustering algorithms and big data applications for real world things

A simplified activity-based costing approach for SMEs : the case study of an Italian small road company

Purpose: The paper proposes an original conceptual model for designing a simplified Activity-Based Costing (ABC) approach for Small and Medium-sized Enterprises (SMEs) by focusing on the transport sector. Design/Methodology/Approach: The model is designed starting from the distinctive characteristics of the SMEs’ collaborative culture. The approach is then tested in the case of an Italian small-road company. Findings: The simplified ABC, which was gradually introduced in the SME, allowed the firm to gain confidence with the costing system. Moreover, the discussion of the results led to identifying the main areas to improve. Practical Implications: Costing systems based on collaboration can lead to operational improvements in SMEs operating in dynamic and competitive sectors as transport. Moreover, advanced technologies may hold a crucial role for their development. Originality/Value: Not much research has considered collaboration as a driver for introducing ABC in SMEs. The paper contributes to the literature on simplified managerial approaches, suggesting trends for future research.peer-reviewe