Linn Marks Collins, Jeremy A.T. Hussell, Robert K. Hettinga, James E. Powell, Ketan K. Mane and Mark L.B. Martinez
To describe how information visualization can be used in the design of interface tools for large‐scale repositories.
Abstract
Purpose
To describe how information visualization can be used in the design of interface tools for large‐scale repositories.
Design/methodology/approach
One challenge for designers in the context of large‐scale repositories is to create interface tools that help users find specific information of interest. In order to be most effective, these tools need to leverage the cognitive characteristics of the target users. At the Los Alamos National Laboratory, the authors' target users are scientists and engineers who can be characterized as higher‐order, analytical thinkers. In this paper, the authors describe a visualization tool they have created for making the authors' large‐scale digital object repositories more usable for them: SearchGraph, which facilitates data set analysis by displaying search results in the form of a two‐ or three‐dimensional interactive scatter plot.
Findings
Using SearchGraph, users can view a condensed, abstract visualization of search results. They can view the same dataset from multiple perspectives by manipulating several display, sort, and filter options. Doing so allows them to see different patterns in the dataset. For example, they can apply a logarithmic transformation in order to create more scatter in a dense cluster of data points or they can apply filters in order to focus on a specific subset of data points.
Originality/value
SearchGraph is a creative solution to the problem of how to design interface tools for large‐scale repositories. It is particularly appropriate for the authors' target users, who are scientists and engineers. It extends the work of the first two authors on ActiveGraph, a read‐write digital library visualization tool.
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James Powell, Ketan Mane, Linn Marks Collins, Mark L.B. Martinez and Tamara McMahon
The purpose of this paper is to explore motivations for libraries to build location aware services.
Abstract
Purpose
The purpose of this paper is to explore motivations for libraries to build location aware services.
Design/methodology/approach
The paper examines various techniques for generating geo‐referenced metadata, including converting placenames to coordinates and using entity extraction to discover places in unstructured text, such as abstracts. It describes several prototype services developed, which deliver geo‐referenced data in different ways – as search results overlaid onto a map, as location specific data delivered to location aware mobile devices just in time, and as raw structured metadata supplied by web services, which could be combined with other data sets in support of e‐science.
Findings
Although library metadata standards can accommodate location, catalogers rarely provide location information related to the content of the intellectual product. Entity extraction services can find location information in free text contents, such as abstracts, and even provide the appropriate coordinates for the identified places, thus enabling geo‐referenced browsing and searching of metadata. Libraries should consider multiple strategies for delivering these data, to maximize its utility for end users. Just‐in‐time information retrieval is rarely used in library systems, but is an essential technique for mobile location‐based information services.
Originality/value
The paper describes several distinct ways in which location‐based information services can be delivered to end users. It also examines techniques for enhancing bibliographic metadata with location information.
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Enrique Martínez-García and Mark A. Wynne
We investigate the Bayesian approach to model comparison within a two-country framework with nominal rigidities using the workhorse New Keynesian open-economy model of Martínez…
Abstract
We investigate the Bayesian approach to model comparison within a two-country framework with nominal rigidities using the workhorse New Keynesian open-economy model of Martínez-García and Wynne (2010). We discuss the trade-offs that monetary policy – characterized by a Taylor-type rule – faces in an interconnected world, with perfectly flexible exchange rates. We then use posterior model probabilities to evaluate the weight of evidence in support of such a model when estimated against more parsimonious specifications that either abstract from monetary frictions or assume autarky by means of controlled experiments that employ simulated data. We argue that Bayesian model comparison with posterior odds is sensitive to sample size and the choice of observable variables for estimation. We show that posterior model probabilities strongly penalize overfitting, which can lead us to favor a less parameterized model against the true data-generating process when the two become arbitrarily close to each other. We also illustrate that the spillovers from monetary policy across countries have an added confounding effect.
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The global slack hypothesis is central to the discussion of the trade-offs that monetary policy faces in an increasingly more integrated world. The workhorse New Open Economy…
Abstract
The global slack hypothesis is central to the discussion of the trade-offs that monetary policy faces in an increasingly more integrated world. The workhorse New Open Economy Macro (NOEM) model of Martínez-García and Wynne (2010), which fleshes out this hypothesis, shows how expected future local inflation and global slack affect current local inflation. In this chapter, I propose the use of the orthogonalization method of Aoki (1981) and Fukuda (1993) on the workhorse NOEM model to further decompose local inflation into a global component and an inflation differential component. I find that the log-linearized rational expectations model of Martínez-García and Wynne (2010) can be solved with two separate subsystems to describe each of these two components of inflation.
I estimate the full NOEM model with Bayesian techniques using data for the United States and an aggregate of its 38 largest trading partners from 1980Q1 until 2011Q4. The Bayesian estimation recognizes the parameter uncertainty surrounding the model and calls on the data (inflation and output) to discipline the parameterization. My findings show that the strength of the international spillovers through trade – even in the absence of common shocks – is reflected in the response of global inflation and is incorporated into local inflation dynamics. Furthermore, I find that key features of the economy can have different impacts on global and local inflation – in particular, I show that the parameters that determine the import share and the price-elasticity of trade matter in explaining the inflation differential component but not the global component of inflation.
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Ho Kwan Cheung, Eden King, Alex Lindsey, Ashley Membere, Hannah M. Markell and Molly Kilcullen
Even more than 50 years after the Civil Rights Act of 1964 prohibited discrimination toward a number of groups in employment settings in the United States, workplace…
Abstract
Even more than 50 years after the Civil Rights Act of 1964 prohibited discrimination toward a number of groups in employment settings in the United States, workplace discrimination remains a persistent problem in organizations. This chapter provides a comprehensive review and analysis of contemporary theory and evidence on the nature, causes, and consequences of discrimination before synthesizing potential methods for its reduction. We note the strengths and weaknesses of this scholarship and highlight meaningful future directions. In so doing, we hope to both inform and inspire organizational and scholarly efforts to understand and eliminate workplace discrimination.
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With numerous and ambiguous sets of information and often conflicting requirements, construction management is a complex process involving much uncertainty. Decision makers may be…
Abstract
With numerous and ambiguous sets of information and often conflicting requirements, construction management is a complex process involving much uncertainty. Decision makers may be challenged with satisfying multiple criteria using vague information. Fuzzy multi-criteria decision-making (FMCDM) provides an innovative approach for addressing complex problems featuring diverse decision makers’ interests, conflicting objectives and numerous but uncertain bits of information. FMCDM has therefore been widely applied in construction management. With the increase in information complexity, extensions of fuzzy set (FS) theory have been generated and adopted to improve its capacity to address this complexity. Examples include hesitant FSs (HFSs), intuitionistic FSs (IFSs) and type-2 FSs (T2FSs). This chapter introduces commonly used FMCDM methods, examines their applications in construction management and discusses trends in future research and application. The chapter first introduces the MCDM process as well as FS theory and its three main extensions, namely, HFSs, IFSs and T2FSs. The chapter then explores the linkage between FS theory and its extensions and MCDM approaches. In total, 17 FMCDM methods are reviewed and two FMCDM methods (i.e. T2FS-TOPSIS and T2FS-PROMETHEE) are further improved based on the literature. These 19 FMCDM methods with their corresponding applications in construction management are discussed in a systematic manner. This review and development of FS theory and its extensions should help both researchers and practitioners better understand and handle information uncertainty in complex decision problems.
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Tessa Withorn, Joanna Messer Kimmitt, Carolyn Caffrey, Anthony Andora, Cristina Springfield, Dana Ospina, Maggie Clarke, George Martinez, Amalia Castañeda, Aric Haas and Wendolyn Vermeer
This paper aims to present recently published resources on library instruction and information literacy, providing an introductory overview and a selected annotated bibliography…
Abstract
Purpose
This paper aims to present recently published resources on library instruction and information literacy, providing an introductory overview and a selected annotated bibliography of publications covering various library types, study populations and research contexts.
Design/methodology/approach
This paper introduces and annotates English-language periodical articles, monographs, dissertations, reports and other materials on library instruction and information literacy published in 2019.
Findings
The paper provides a brief description of all 370 sources and highlights sources that contain unique or significant scholarly contributions.
Originality/value
The information may be used by librarians, researchers and anyone interested as a quick and comprehensive reference to literature on library instruction and information literacy.
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Many jurisdictions fine illegal cartels using penalty guidelines that presume an arbitrary 10% overcharge. This article surveys more than 700 published economic studies and…
Abstract
Many jurisdictions fine illegal cartels using penalty guidelines that presume an arbitrary 10% overcharge. This article surveys more than 700 published economic studies and judicial decisions that contain 2,041 quantitative estimates of overcharges of hard-core cartels. The primary findings are: (1) the median average long-run overcharge for all types of cartels over all time periods is 23.0%; (2) the mean average is at least 49%; (3) overcharges reached their zenith in 1891–1945 and have trended downward ever since; (4) 6% of the cartel episodes are zero; (5) median overcharges of international-membership cartels are 38% higher than those of domestic cartels; (6) convicted cartels are on average 19% more effective at raising prices as unpunished cartels; (7) bid-rigging conduct displays 25% lower markups than price-fixing cartels; (8) contemporary cartels targeted by class actions have higher overcharges; and (9) when cartels operate at peak effectiveness, price changes are 60–80% higher than the whole episode. Historical penalty guidelines aimed at optimally deterring cartels are likely to be too low.
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Latisha Reynolds, Samantha McClellan, Susan Finley, George Martinez and Rosalinda Hernandez Linares
This paper aims to highlight recent resources on information literacy (IL) and library instruction, providing an introductory overview and a selected annotated bibliography of…
Abstract
Purpose
This paper aims to highlight recent resources on information literacy (IL) and library instruction, providing an introductory overview and a selected annotated bibliography of publications covering all library types.
Design/methodology/approach
This paper introduces and annotates English-language periodical articles, monographs, dissertations and other materials on library instruction and IL published in 2015.
Findings
This paper provides information about each source, describes the characteristics of current scholarship and highlights sources that contain either unique or significant scholarly contributions.
Originality/value
The information may be used by librarians and interested parties as a quick reference to literature on library instruction and IL.