USING RESTRICTED RANDOM WALKS FOR LIBRARY RECOMMENDATIONS AND KNOWLEDGE SPACE EXPLORATION

2007 ◽  
Vol 21 (02) ◽  
pp. 355-373 ◽  
Author(s):  
MARKUS FRANKE ◽  
ANDREAS GEYER-SCHULZ
Keyword(s):  
User Interface ◽  
Random Walks ◽  
Recommender Systems ◽  
Space Exploration ◽  
Knowledge Space ◽  
Online Catalog ◽  
Different Levels ◽  
Cluster Level ◽  
Do So

Implicit recommender systems provide a valuable aid to customers browsing through library corpora. We present a method to realize such a recommender especially for, but not limited to, libraries. The method is cluster-based, scales well for large collections, and produces recommendations of good quality. The approach is based on using session histories of visitors of the library's online catalog in order to generate a hierarchy of nondisjunctive clusters. Depending on the user's needs, the clusters at different levels of the hierarchy can be employed as recommendations. Using the prototype of a user interface we show that, if, for instance, the user is willing to sacrifice some precision in order to gain a higher number of documents during a specific session, he or she can do so easily by adjusting the cluster level via a slider.

scholarly journals Explaining Review-Based Recommendations: Effects of Profile Transparency, Presentation Style and User Characteristics

i-com ◽  
2020 ◽  
Vol 19 (3) ◽  
pp. 181-200
Author(s):  
Diana C. Hernandez-Bocanegra ◽  
Jürgen Ziegler
Keyword(s):  
Decision Making ◽  
Individual Differences ◽  
User Interface ◽  
Recommender Systems ◽  
Social Awareness ◽  
User Characteristics ◽  
Presentation Style ◽  
User Reviews ◽  
Decision Making Styles

Abstract Providing explanations based on user reviews in recommender systems (RS) may increase users’ perception of transparency or effectiveness. However, little is known about how these explanations should be presented to users, or which types of user interface components should be included in explanations, in order to increase both their comprehensibility and acceptance. To investigate such matters, we conducted two experiments and evaluated the differences in users’ perception when providing information about their own profiles, in addition to a summarized view on the opinions of other customers about the recommended hotel. Additionally, we also aimed to test the effect of different display styles (bar chart and table) on the perception of review-based explanations for recommended hotels, as well as how useful users find different explanatory interface components. Our results suggest that the perception of an RS and its explanations given profile transparency and different presentation styles, may vary depending on individual differences on user characteristics, such as decision-making styles, social awareness, or visualization familiarity.

Accessing offshoring advantages: what and how to offshore

2015 ◽  
Vol 8 (2/3) ◽  
pp. 262-283 ◽  
Author(s):  
Alona Mykhaylenko ◽  
Ágnes Motika ◽  
Brian Vejrum Waehrens ◽  
Dmitrij Slepniov
Keyword(s):  
Performance Outcomes ◽  
Offshore Outsourcing ◽  
Strategic Decisions ◽  
Content Type ◽  
Different Types ◽  
Captive Offshoring ◽  
Performance Results ◽  
Governance Modes ◽  
Different Levels ◽  
Do So

Purpose – The purpose of this paper is to advance the understanding of factors that affect offshoring performance results. To do so, this paper focuses on the access to location-specific advantages, rather than solely on the properties of the offshoring company, its strategy or environment. Assuming that different levels of synergy may exist between particular offshoring strategic decisions (choosing offshore outsourcing or captive offshoring and the type of function) and different offshoring advantages, this work advocates that the actual fact of realization of certain offshoring advantages (getting or not getting access to them) is a more reliable predictor of offshoring success. Design/methodology/approach – A set of hypotheses derived from the extant literature is tested on the data from a quantitative survey of 1,143 Scandinavian firms. Findings – The paper demonstrates that different governance modes and types of offshored function indeed provide different levels of access to different types of location-specific offshoring advantages. This difference may help to explain the ambiguity of offshoring initiatives performance results. Research limitations/implications – Limitations of the work include using only the offshoring strategy elements and only their limited variety as factors potentially influencing access to offshoring advantages. Also, the findings are limited to Scandinavian companies. Originality/value – The paper introduces a new concept of access, which can help to more reliably predict performance outcomes of offshoring initiatives. Recommendations are also provided to practitioners dealing with offshoring initiatives.

Following Gesture Following: Grounding the Documentation of a Multi-Agent Music Creation Process

2012 ◽  
Vol 36 (4) ◽  
pp. 59-80 ◽  
Author(s):  
Guillaume Boutard ◽  
Catherine Guastavino
Keyword(s):  
Conceptual Framework ◽  
Creative Process ◽  
Relevant Information ◽  
Musical Work ◽  
Levels Of Abstraction ◽  
Musical Works ◽  
Multi Agent ◽  
Ethnographic Data ◽  
Different Levels ◽  
Do So

The documentation of electroacoustic and mixed musical works typically relies on a posteriori data collection. In this article, we argue that the preservation of musical works having technological components should be grounded in a thorough documentation of the creative process that accounts for both human and nonhuman agents of creation. The present research aims at providing a ground for documentation policies that account for the creative process and provide relevant information for performance, migration, and analysis. To do so, we analyzed secondary ethnographic data from a two-year creation and production process of a musical work having a focus on gesture following. Using grounded theory, we developed a conceptual framework with different levels of abstraction and consequent levels of transferability to other creative contexts. Finally, we propose several paths for grounding a subsequent documentation framework in this conceptual framework.

On Islands and Deserts

2019 ◽  
Vol 4 (2) ◽  
pp. 215-236
Author(s):  
Tristan Leperlier
Keyword(s):  
National Identity ◽  
World Literature ◽  
Postcolonial Studies ◽  
Literary Field ◽  
Literary Works ◽  
Local Practices ◽  
Rachid Boudjedra ◽  
Different Levels ◽  
Do So

Abstract This article argues for the necessity for world literature and postcolonial studies to examine both global hierarchies of literary legitimacy and those local practices which might challenge them, and give perspectives for other significant geographies. To do so, it focuses on the bilingual and transnational Algerian literary field; this requires different levels of interconnected analysis, namely of the two linguistic subfields, the intermediary level of national literary field and the two Francophone and Arabophone transnational literary fields. Trajectories and literary works of three very different yet linked writers, Rachid Boudjedra, Tahar Djaout and Tahar Ouettar, are examined in turn. The article traces both the global and linguistic inequalities to which they were subjected as well as their practices in order to argue that they reveal unexpected vectors of circulation between spaces and languages. Finally, this piece explores how and why each writer reinvents a world within their desert novels, that is, by narrating wanderings in the desert that are also explorations of national identity.

Enabling parametric design space exploration by non-designers

2020 ◽  
Vol 34 (2) ◽  
pp. 160-175 ◽  
Author(s):  
Eduardo Castro e Costa ◽  
Joaquim Jorge ◽  
Aaron D. Knochel ◽  
José Pinto Duarte
Keyword(s):  
User Interface ◽  
Mass Customization ◽  
Design Space Exploration ◽  
Design Space ◽  
Parametric Design ◽  
Space Exploration ◽  
End Users ◽  
Parametric Models ◽  
Direct Manipulation ◽  
Barycentric Interpolation

AbstractIn mass customization, software configurators enable novice end-users to design customized products and services according to their needs and preferences. However, traditional configurators hardly provide an engaging experience while avoiding the burden of choice. We propose a Design Participation Model to facilitate navigating the design space, based on two modules. Modeler enables designers to create customizable designs as parametric models, and Navigator subsequently permits novice end-users to explore these designs. While most parametric designs support direct manipulation of low-level features, we propose interpolation features to give customers more flexibility. In this paper, we focus on the implementation of such interpolation features into Navigator and its user interface. To assess our approach, we designed and performed user experiments to test and compare Modeler and Navigator, thus providing insights for further developments of our approach. Our results suggest that barycentric interpolation between qualitative parameters provides a more easily understandable interface that empowers novice customers to explore the design space expeditiously.

scholarly journals Living on mars: how to produce oxygen and fuel to get home

2018 ◽  
Vol 49 (3) ◽  
pp. 15-18 ◽  
Author(s):  
Vasco Guerra ◽  
Tiago Silva ◽  
Olivier Guaitella
Keyword(s):  
Carbon Dioxide ◽  
Oxygen Supply ◽  
Space Exploration ◽  
Martian Atmosphere ◽  
Plasma Technology ◽  
Do So ◽  
The Way

Sending a manned mission to Mars is one of the next major steps in space exploration. Creating a breathable environment, however, is a substantial challenge. A sustainable oxygen supply on the red planet can be achieved by converting carbon dioxide directly from the Martian atmosphere. A new solution to do so is on the way: plasma technology.

Changing Technology in Control Room Design: Is One Graphical Interface Worth 1000 Indicators?

1995 ◽  
Vol 39 (21) ◽  
pp. 1435-1439 ◽  
Author(s):  
Leon D. Segal ◽  
Anthony D. Andre
Keyword(s):  
User Interface ◽  
Wind Tunnel ◽  
Graphical User Interface ◽  
Graphical Interface ◽  
Control Room ◽  
Analog To Digital ◽  
Room Design ◽  
Design Program ◽  
Actual Content ◽  
Different Levels

This paper presents a review of human factors (HF) efforts toward the introduction of a graphical user interface (GUI) designed for operators in the control room of the world's largest wind tunnel at NASA's Ames Research Center, located in Moffett Field, California. Design of GUIs for the control room of this facility involved application of HF principles at many different levels of the design program: the design process itself, the environmental context for design, and the actual content of the graphical interface. This paper presents the particular challenges associated with transforming a control room from analog to digital, as well as the specific advantages and drawbacks of using GUIs in the context of large, multi-operator, environments.

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