Search (96 results, page 5 of 5)

0.0018253836 = product of:
  0.010952301 = sum of:
    0.010952301 = product of:
      0.032856904 = sum of:
        0.032856904 = weight(_text_:system in 4831) [ClassicSimilarity], result of:
          0.032856904 = score(doc=4831,freq=4.0), product of:
            0.13353272 = queryWeight, product of:
              3.1495528 = idf(docFreq=5152, maxDocs=44218)
              0.042397358 = queryNorm
            0.24605882 = fieldWeight in 4831, product of:
              2.0 = tf(freq=4.0), with freq of:
                4.0 = termFreq=4.0
              3.1495528 = idf(docFreq=5152, maxDocs=44218)
              0.0390625 = fieldNorm(doc=4831)
      0.33333334 = coord(1/3)
  0.16666667 = coord(1/6)

Abstract

In the 1950s, the "universe of knowledge" metaphor returned in discussions around the "first theory of faceted classification'; the Colon Classification (CC) of S.R. Ranganathan, to stress the differences within an "universe of concepts" system. Here we claim that the Universal Decimal Classification (UDC) has been either ignored or incorrectly represented in studies that focused on the pivotal role of Ranganathan in a transition from "top-down universe of concepts systems" to "bottom-up universe of concepts systems." Early 20th century designs from Paul Otlet reveal a two directional interaction between "elements" and "ensembles"that can be compared to the relations between the universe of knowledge and universe of concepts systems. Moreover, an unpublished manuscript with the title "Theorie schematique de la Classification" of 1908 includes sketches that demonstrate an exploration by Paul Otlet of the multidimensional characteristics of the UDC. The interactions between these one- and multidimensional representations of the UDC support Donker Duyvis' critical comments to Ranganathan who had dismissed it as a rigid hierarchical system in comparison to his own Colon Classification. A visualization of the experiments of the Knowledge Space Lab in which main categories of Wikipedia were mapped on the UDC provides empirical evidence of its faceted structure's flexibility.

0.0018253836 = product of:
  0.010952301 = sum of:
    0.010952301 = product of:
      0.032856904 = sum of:
        0.032856904 = weight(_text_:system in 3917) [ClassicSimilarity], result of:
          0.032856904 = score(doc=3917,freq=4.0), product of:
            0.13353272 = queryWeight, product of:
              3.1495528 = idf(docFreq=5152, maxDocs=44218)
              0.042397358 = queryNorm
            0.24605882 = fieldWeight in 3917, product of:
              2.0 = tf(freq=4.0), with freq of:
                4.0 = termFreq=4.0
              3.1495528 = idf(docFreq=5152, maxDocs=44218)
              0.0390625 = fieldNorm(doc=3917)
      0.33333334 = coord(1/3)
  0.16666667 = coord(1/6)

Abstract

Many successful digital interfaces employ visual metaphors to convey features or data properties to users, but the characteristics that make a visual metaphor effective are not well understood. We used a theoretical conception of metaphor from cognitive linguistics to design an interactive system for viewing the citation network of the corpora of literature in the JSTOR database, a highly connected compound graph of 2 million papers linked by 8 million citations. We created 4 variants of this system, manipulating 2 distinct properties of metaphor. We conducted a between-subjects experimental study with 80 participants to compare understanding and engagement when working with each version. We found that building on known image schemas improved response time on look-up tasks, while contextual detail predicted increases in persistence and the number of inferences drawn from the data. Schema-congruency combined with contextual detail produced the highest gains in comprehension. These findings provide concrete mechanisms by which designers presenting large data sets through metaphorical interfaces may improve their effectiveness and appeal with users.

0.0018070375 = product of:
  0.010842225 = sum of:
    0.010842225 = product of:
      0.032526672 = sum of:
        0.032526672 = weight(_text_:system in 2307) [ClassicSimilarity], result of:
          0.032526672 = score(doc=2307,freq=2.0), product of:
            0.13353272 = queryWeight, product of:
              3.1495528 = idf(docFreq=5152, maxDocs=44218)
              0.042397358 = queryNorm
            0.2435858 = fieldWeight in 2307, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.1495528 = idf(docFreq=5152, maxDocs=44218)
              0.0546875 = fieldNorm(doc=2307)
      0.33333334 = coord(1/3)
  0.16666667 = coord(1/6)

Abstract

Map-based visualizations of document collections have become popular in recent times. However, most of these visualizations emphasize only geospatial properties of objects, leaving out other ontological properties. In this paper we propose to extend these visualizations to include nongeospatial properties of documents to support users with elementary and synoptic visual tasks. More specifically, additional suitable representations that can enhance the utility of map-based visualizations are discussed. To demonstrate the utility of the proposed solution, we have developed a prototype map-based visualization system using Google Maps (GM), which demonstrates how additional representations can be beneficial.

0.0018070375 = product of:
  0.010842225 = sum of:
    0.010842225 = product of:
      0.032526672 = sum of:
        0.032526672 = weight(_text_:system in 4646) [ClassicSimilarity], result of:
          0.032526672 = score(doc=4646,freq=2.0), product of:
            0.13353272 = queryWeight, product of:
              3.1495528 = idf(docFreq=5152, maxDocs=44218)
              0.042397358 = queryNorm
            0.2435858 = fieldWeight in 4646, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.1495528 = idf(docFreq=5152, maxDocs=44218)
              0.0546875 = fieldNorm(doc=4646)
      0.33333334 = coord(1/3)
  0.16666667 = coord(1/6)

0.0016101109 = product of:
  0.009660665 = sum of:
    0.009660665 = product of:
      0.028981995 = sum of:
        0.028981995 = weight(_text_:29 in 1463) [ClassicSimilarity], result of:
          0.028981995 = score(doc=1463,freq=2.0), product of:
            0.14914064 = queryWeight, product of:
              3.5176873 = idf(docFreq=3565, maxDocs=44218)
              0.042397358 = queryNorm
            0.19432661 = fieldWeight in 1463, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.5176873 = idf(docFreq=3565, maxDocs=44218)
              0.0390625 = fieldNorm(doc=1463)
      0.33333334 = coord(1/3)
  0.16666667 = coord(1/6)

Date

28. 2.2008 14:16:29

0.0016101109 = product of:
  0.009660665 = sum of:
    0.009660665 = product of:
      0.028981995 = sum of:
        0.028981995 = weight(_text_:29 in 3437) [ClassicSimilarity], result of:
          0.028981995 = score(doc=3437,freq=2.0), product of:
            0.14914064 = queryWeight, product of:
              3.5176873 = idf(docFreq=3565, maxDocs=44218)
              0.042397358 = queryNorm
            0.19432661 = fieldWeight in 3437, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.5176873 = idf(docFreq=3565, maxDocs=44218)
              0.0390625 = fieldNorm(doc=3437)
      0.33333334 = coord(1/3)
  0.16666667 = coord(1/6)

Date

16.11.2017 13:29:12

0.0015956269 = product of:
  0.009573761 = sum of:
    0.009573761 = product of:
      0.028721282 = sum of:
        0.028721282 = weight(_text_:22 in 5272) [ClassicSimilarity], result of:
          0.028721282 = score(doc=5272,freq=2.0), product of:
            0.14846832 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.042397358 = queryNorm
            0.19345059 = fieldWeight in 5272, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.0390625 = fieldNorm(doc=5272)
      0.33333334 = coord(1/3)
  0.16666667 = coord(1/6)

Date

22. 7.2006 16:11:05

0.0015956269 = product of:
  0.009573761 = sum of:
    0.009573761 = product of:
      0.028721282 = sum of:
        0.028721282 = weight(_text_:22 in 4573) [ClassicSimilarity], result of:
          0.028721282 = score(doc=4573,freq=2.0), product of:
            0.14846832 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.042397358 = queryNorm
            0.19345059 = fieldWeight in 4573, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.0390625 = fieldNorm(doc=4573)
      0.33333334 = coord(1/3)
  0.16666667 = coord(1/6)

Date

9.12.2018 16:22:25

0.0015488893 = product of:
  0.0092933355 = sum of:
    0.0092933355 = product of:
      0.027880006 = sum of:
        0.027880006 = weight(_text_:system in 4757) [ClassicSimilarity], result of:
          0.027880006 = score(doc=4757,freq=2.0), product of:
            0.13353272 = queryWeight, product of:
              3.1495528 = idf(docFreq=5152, maxDocs=44218)
              0.042397358 = queryNorm
            0.20878783 = fieldWeight in 4757, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.1495528 = idf(docFreq=5152, maxDocs=44218)
              0.046875 = fieldNorm(doc=4757)
      0.33333334 = coord(1/3)
  0.16666667 = coord(1/6)

Abstract

The editor's decision where and how to place items on a screen is crucial for the design of information displays, such as websites. We developed a statistical model that can facilitate automating this process by predicting the perceived importance of screen items from their location and size. The model was developed based on a 2-step experiment in which we asked participants to rate the importance of text articles that differed in size, screen location, and title size. Articles were either presented for 0.5 seconds or for unlimited time. In a stepwise regression analysis, the model's variables accounted for 65% of the variance in the importance ratings. In a validation study, the model predicted 85% of the variance of the mean apparent importance of screen items. The model also predicted individual raters' importance perception ratings. We discuss the implications of such a model in the context of automating layout generation. An automated system for layout generation can optimize data presentation to suit users' individual information and display preferences.

0.0014603068 = product of:
  0.008761841 = sum of:
    0.008761841 = product of:
      0.026285522 = sum of:
        0.026285522 = weight(_text_:system in 2547) [ClassicSimilarity], result of:
          0.026285522 = score(doc=2547,freq=4.0), product of:
            0.13353272 = queryWeight, product of:
              3.1495528 = idf(docFreq=5152, maxDocs=44218)
              0.042397358 = queryNorm
            0.19684705 = fieldWeight in 2547, product of:
              2.0 = tf(freq=4.0), with freq of:
                4.0 = termFreq=4.0
              3.1495528 = idf(docFreq=5152, maxDocs=44218)
              0.03125 = fieldNorm(doc=2547)
      0.33333334 = coord(1/3)
  0.16666667 = coord(1/6)

Abstract

The discovery service (a search engine and service called WILBERT) used at our library at the Technical University of Applied Sciences Wildau (TUAS Wildau) is comprised of more than 8 million items. If we were to record all licensed publications in this tool to a higher level of articles, including their bibliographic records and full texts, we would have a holding estimated at a hundred million documents. A lot of features, such as ranking, autocompletion, multi-faceted classification, refining opportunities reduce the number of hits. However, it is not enough to give intuitive support for a systematic overview of topics related to documents in the library. John Naisbitt once said: "We are drowning in information, but starving for knowledge." This quote is still very true today. Two years ago, we started to develop micro thesauri for MINT topics in order to develop an advanced indexing of the library stock. We use iQvoc as a vocabulary management system to create the thesaurus. It provides an easy-to-use browser interface that builds a SKOS thesaurus in the background. The purpose of this is to integrate the thesauri in WILBERT in order to offer a better subject-related search. This approach especially supports first-year students by giving them the possibility to browse through a hierarchical alignment of a subject, for instance, logistics or computer science, and thereby discover how the terms are related. It also supports the students with an insight into established abbreviations and alternative labels. Students at the TUAS Wildau were involved in the developmental process of the software regarding the interface and functionality of iQvoc. The first steps have been taken and involve the inclusion of 3000 terms in our discovery tool WILBERT.

0.001428726 = product of:
  0.008572356 = sum of:
    0.008572356 = weight(_text_:retrieval in 3884) [ClassicSimilarity], result of:
      0.008572356 = score(doc=3884,freq=2.0), product of:
        0.12824841 = queryWeight, product of:
          3.024915 = idf(docFreq=5836, maxDocs=44218)
          0.042397358 = queryNorm
        0.06684181 = fieldWeight in 3884, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          3.024915 = idf(docFreq=5836, maxDocs=44218)
          0.015625 = fieldNorm(doc=3884)
  0.16666667 = coord(1/6)

Footnote

The sixth chapter looks at this interfacing of humans and machines and begins with a series of questions. The crucial one, to my mind, is this: "Does the distinction between humans and technology contribute to a lack of understanding of the continuous interrelationship and interdependence that exists between humans and all of their creations?" (p. 125) Burnett suggests that to use biological or mechanical views of the computer/mind (the computer as an input/output device) Limits our understanding of the ways in which we interact with machines. He thus points to the role of language, the conversations (including the one we held with machines when we were children) that seem to suggest a wholly different kind of relationship. Peer-to-peer communication (P2P), which is arguably the most widely used exchange mode of images today, is the subject of chapter seven. The issue here is whether P2P affects community building or community destruction. Burnett argues that the trope of community can be used to explore the flow of historical events that make up a continuum-from 17th-century letter writing to e-mail. In the new media-and Burnett uses the example of popular music which can be sampled, and reedited to create new compositions - the interpretive space is more flexible. Private networks can be set up, and the process of information retrieval (about which Burnett has already expended considerable space in the early chapters) involves a lot more of visualization. P2P networks, as Burnett points out, are about information management. They are about the harmony between machines and humans, and constitute a new ecology of communications. Turning to computer games, Burnett looks at the processes of interaction, experience, and reconstruction in simulated artificial life worlds, animations, and video images. For Burnett (like Andrew Darley, 2000 and Richard Doyle, 2003) the interactivity of the new media games suggests a greater degree of engagement with imageworlds. Today many facets of looking, listening, and gazing can be turned into aesthetic forms with the new media. Digital technology literally reanimates the world, as Burnett demonstrates in bis concluding chapter. Burnett concludes that images no longer simply represent the world-they shape our very interaction with it; they become the foundation for our understanding the spaces, places, and historical moments that we inhabit. Burnett concludes his book with the suggestion that intelligence is now a distributed phenomenon (here closely paralleling Katherine Hayles' argument that subjectivity is dispersed through the cybernetic circuit, 1999). There is no one center of information or knowledge. Intersections of human creativity, work, and connectivity "spread" (Burnett's term) "intelligence through the use of mediated devices and images, as well as sounds" (p. 221).

0.001290741 = product of:
  0.007744446 = sum of:
    0.007744446 = product of:
      0.023233337 = sum of:
        0.023233337 = weight(_text_:system in 1214) [ClassicSimilarity], result of:
          0.023233337 = score(doc=1214,freq=2.0), product of:
            0.13353272 = queryWeight, product of:
              3.1495528 = idf(docFreq=5152, maxDocs=44218)
              0.042397358 = queryNorm
            0.17398985 = fieldWeight in 1214, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.1495528 = idf(docFreq=5152, maxDocs=44218)
              0.0390625 = fieldNorm(doc=1214)
      0.33333334 = coord(1/3)
  0.16666667 = coord(1/6)

Abstract

Complex cognitive activities, such as analytical reasoning, problem solving, and sense making, are often performed through the mediation of interactive computational tools. Examples include visual analytics, decision support, and educational tools. Through interaction with visual representations of information at the visual interface of these tools, a joint, coordinated cognitive system is formed. This partnership results in a number of relational properties-those depending on both humans and tools-that researchers and designers must be aware of if such tools are to effectively support the performance of complex cognitive activities. This article presents 10 properties of interactive visual representations that are essential and relational and whose values can be adjusted through interaction. By adjusting the values of these properties, better coordination between humans and tools can be effected, leading to higher quality performance of complex cognitive activities. This article examines how the values of these properties affect cognitive processing and visual reasoning and demonstrates the necessity of making their values adjustable-all of which is situated within a broader theoretical framework concerned with human-information interaction in complex cognitive activities. This framework can facilitate systematic research, design, and evaluation in numerous fields including information visualization, health informatics, visual analytics, and educational technology.

0.001290741 = product of:
  0.007744446 = sum of:
    0.007744446 = product of:
      0.023233337 = sum of:
        0.023233337 = weight(_text_:system in 3756) [ClassicSimilarity], result of:
          0.023233337 = score(doc=3756,freq=2.0), product of:
            0.13353272 = queryWeight, product of:
              3.1495528 = idf(docFreq=5152, maxDocs=44218)
              0.042397358 = queryNorm
            0.17398985 = fieldWeight in 3756, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.1495528 = idf(docFreq=5152, maxDocs=44218)
              0.0390625 = fieldNorm(doc=3756)
      0.33333334 = coord(1/3)
  0.16666667 = coord(1/6)

Abstract

Visitors to museums and other cultural heritage sites encounter a wealth of exhibits in a variety of subject areas, but can explore only a small number of them. Moreover, there typically exists rich complementary information that can be delivered to the visitor about exhibits of interest, but only a fraction of this information can be consumed during the limited time of the visit. Recommender systems may help visitors to cope with this information overload. Ideally, the recommender system of choice should model user preferences, as well as background knowledge about the museum's environment, considering aspects of physical and thematic relevancy. We propose a personalized graph-based recommender framework, representing rating history and background multi-facet information jointly as a relational graph. A random walk measure is applied to rank available complementary multimedia presentations by their relevancy to a visitor's profile, integrating the various dimensions. We report the results of experiments conducted using authentic data collected at the Hecht museum. An evaluation of multiple graph variants, compared with several popular and state-of-the-art recommendation methods, indicates on advantages of the graph-based approach.

0.001290741 = product of:
  0.007744446 = sum of:
    0.007744446 = product of:
      0.023233337 = sum of:
        0.023233337 = weight(_text_:system in 687) [ClassicSimilarity], result of:
          0.023233337 = score(doc=687,freq=2.0), product of:
            0.13353272 = queryWeight, product of:
              3.1495528 = idf(docFreq=5152, maxDocs=44218)
              0.042397358 = queryNorm
            0.17398985 = fieldWeight in 687, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.1495528 = idf(docFreq=5152, maxDocs=44218)
              0.0390625 = fieldNorm(doc=687)
      0.33333334 = coord(1/3)
  0.16666667 = coord(1/6)

Abstract

Purpose The purpose of this paper is to examine whether and how a methodological coupling of visualisations of trace data and interview methods can be utilised for information practices studies. Design/methodology/approach Trace data visualisation enquiry is suggested as the coupling of visualising exported data from an information system and using these visualisations as basis for interview guides and elicitation in information practices research. The methodology is illustrated and applied through a small-scale empirical study of a citizen science project. Findings The study found that trace data visualisation enquiry enabled fine-grained investigations of temporal aspects of information practices and to compare and explore temporal and geographical aspects of practices. Moreover, the methodology made possible inquiries for understanding information practices through trace data that were discussed through elicitation with participants. The study also found that it can aid a researcher of gaining a simultaneous overarching and close picture of information practices, which can lead to theoretical and methodological implications for information practices research. Originality/value Trace data visualisation enquiry extends current methods for investigating information practices as it enables focus to be placed on the traces of practices as recorded through interactions with information systems and study participants' accounts of activities.

0.0012880887 = product of:
  0.007728532 = sum of:
    0.007728532 = product of:
      0.023185596 = sum of:
        0.023185596 = weight(_text_:29 in 595) [ClassicSimilarity], result of:
          0.023185596 = score(doc=595,freq=2.0), product of:
            0.14914064 = queryWeight, product of:
              3.5176873 = idf(docFreq=3565, maxDocs=44218)
              0.042397358 = queryNorm
            0.15546128 = fieldWeight in 595, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.5176873 = idf(docFreq=3565, maxDocs=44218)
              0.03125 = fieldNorm(doc=595)
      0.33333334 = coord(1/3)
  0.16666667 = coord(1/6)

Date

27. 5.2022 18:19:29

0.001032593 = product of:
  0.0061955573 = sum of:
    0.0061955573 = product of:
      0.018586671 = sum of:
        0.018586671 = weight(_text_:system in 1292) [ClassicSimilarity], result of:
          0.018586671 = score(doc=1292,freq=2.0), product of:
            0.13353272 = queryWeight, product of:
              3.1495528 = idf(docFreq=5152, maxDocs=44218)
              0.042397358 = queryNorm
            0.13919188 = fieldWeight in 1292, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.1495528 = idf(docFreq=5152, maxDocs=44218)
              0.03125 = fieldNorm(doc=1292)
      0.33333334 = coord(1/3)
  0.16666667 = coord(1/6)

Abstract

A visual thesaurus system and method for displaying a selected term in association with its one or more meanings, other words to which it is related, and further relationship information. The results of a search are presented in a directed graph that provides more information than an ordered list. When a user selects one of the results, the display reorganizes around the user's search allowing for further searches, without the interruption of going to additional pages.