Search (12 results, page 1 of 1)

  • × author_ss:"Zhang, Y."
  1. Zhang, Y.: Scholarly use of Internet-based electronic resources (2001) 0.03 
    0.033989757 = product of:
  0.067979515 = sum of:
    0.04116606 = weight(_text_:26 in 5212) [ClassicSimilarity], result of:
      0.04116606 = score(doc=5212,freq=2.0), product of:
        0.17584132 = queryWeight, product of:
          3.5315237 = idf(docFreq=3516, maxDocs=44218)
          0.04979191 = queryNorm
        0.23410915 = fieldWeight in 5212, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          3.5315237 = idf(docFreq=3516, maxDocs=44218)
          0.046875 = fieldNorm(doc=5212)
    0.026813459 = product of:
      0.053626917 = sum of:
        0.053626917 = weight(_text_:access in 5212) [ClassicSimilarity], result of:
          0.053626917 = score(doc=5212,freq=4.0), product of:
            0.16876608 = queryWeight, product of:
              3.389428 = idf(docFreq=4053, maxDocs=44218)
              0.04979191 = queryNorm
            0.31775886 = fieldWeight in 5212, product of:
              2.0 = tf(freq=4.0), with freq of:
                4.0 = termFreq=4.0
              3.389428 = idf(docFreq=4053, maxDocs=44218)
              0.046875 = fieldNorm(doc=5212)
      0.5 = coord(1/2)
  0.5 = coord(2/4)
    Abstract
    By Internet resources Zhang means any electronic file accessible by any Internet protocol. Their usage is determined by an examination of the citations to such sources in a nine-year sample of four print and four electronic LIS journals, by a survey of editors of these journals, and by a survey of scholars with "in press" papers in these journals. Citations were gathered from Social Science Citation Index and manually classed as e-sources by the format used. All authors with "in press" papers were asked about their use and opinion of Internet sources and for any suggestions for improvement. Use of electronic sources is heavy and access is very high. Access and ability explain most usage while satisfaction was not significant. Citation of e-journals increases over the eight years. Authors report under citation of e-journals in favor of print equivalents. Traditional reasons are given for citing and not citing, but additional reasons are also present for e-journals.
    Date
    17. 7.2006 13:06:26
  2. Zhang, Y.; Liu, J.; Song, S.: ¬The design and evaluation of a nudge-based interface to facilitate consumers' evaluation of online health information credibility (2023) 0.02 
    0.016332638 = product of:
  0.06533055 = sum of:
    0.06533055 = sum of:
      0.031599965 = weight(_text_:access in 993) [ClassicSimilarity], result of:
        0.031599965 = score(doc=993,freq=2.0), product of:
          0.16876608 = queryWeight, product of:
            3.389428 = idf(docFreq=4053, maxDocs=44218)
            0.04979191 = queryNorm
          0.18724121 = fieldWeight in 993, product of:
            1.4142135 = tf(freq=2.0), with freq of:
              2.0 = termFreq=2.0
            3.389428 = idf(docFreq=4053, maxDocs=44218)
            0.0390625 = fieldNorm(doc=993)
      0.03373058 = weight(_text_:22 in 993) [ClassicSimilarity], result of:
        0.03373058 = score(doc=993,freq=2.0), product of:
          0.17436278 = queryWeight, product of:
            3.5018296 = idf(docFreq=3622, maxDocs=44218)
            0.04979191 = queryNorm
          0.19345059 = fieldWeight in 993, 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=993)
  0.25 = coord(1/4)
    Abstract
    Evaluating the quality of online health information (OHI) is a major challenge facing consumers. We designed PageGraph, an interface that displays quality indicators and associated values for a webpage, based on credibility evaluation models, the nudge theory, and existing empirical research concerning professionals' and consumers' evaluation of OHI quality. A qualitative evaluation of the interface with 16 participants revealed that PageGraph rendered the information and presentation nudges as intended. It provided the participants with easier access to quality indicators, encouraged fresh angles to assess information credibility, provided an evaluation framework, and encouraged validation of initial judgments. We then conducted a quantitative evaluation of the interface involving 60 participants using a between-subject experimental design. The control group used a regular web browser and evaluated the credibility of 12 preselected webpages, whereas the experimental group evaluated the same webpages with the assistance of PageGraph. PageGraph did not significantly influence participants' evaluation results. The results may be attributed to the insufficiency of the saliency and structure of the nudges implemented and the webpage stimuli's lack of sensitivity to the intervention. Future directions for applying nudges to support OHI evaluation were discussed.
    Date
    22. 6.2023 18:18:34
  3. Zhang, Y.: Searching for specific health-related information in MedlinePlus : behavioral patterns and user experience (2014) 0.01 
    0.008576263 = product of:
  0.03430505 = sum of:
    0.03430505 = weight(_text_:26 in 1180) [ClassicSimilarity], result of:
      0.03430505 = score(doc=1180,freq=2.0), product of:
        0.17584132 = queryWeight, product of:
          3.5315237 = idf(docFreq=3516, maxDocs=44218)
          0.04979191 = queryNorm
        0.19509095 = fieldWeight in 1180, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          3.5315237 = idf(docFreq=3516, maxDocs=44218)
          0.0390625 = fieldNorm(doc=1180)
  0.25 = coord(1/4)
    Date
    26. 1.2014 19:07:54
  4. Zhang, Y.: ¬The effect of open access on citation impact : a comparison study based on Web citation analysis (2006) 0.01 
    0.007899991 = product of:
  0.031599965 = sum of:
    0.031599965 = product of:
      0.06319993 = sum of:
        0.06319993 = weight(_text_:access in 5071) [ClassicSimilarity], result of:
          0.06319993 = score(doc=5071,freq=8.0), product of:
            0.16876608 = queryWeight, product of:
              3.389428 = idf(docFreq=4053, maxDocs=44218)
              0.04979191 = queryNorm
            0.37448242 = fieldWeight in 5071, product of:
              2.828427 = tf(freq=8.0), with freq of:
                8.0 = termFreq=8.0
              3.389428 = idf(docFreq=4053, maxDocs=44218)
              0.0390625 = fieldNorm(doc=5071)
      0.5 = coord(1/2)
  0.25 = coord(1/4)
    Abstract
    The academic impact advantage of Open Access (OA) is a prominent topic of debate in the library and publishing communities. Web citations have been proposed as comparable to, even replacements for, bibliographic citations in assessing the academic impact of journals. In our study, we compare Web citations to articles in an OA journal, the Journal of Computer-Mediated Communication (JCMC), and a traditional access journal, New Media & Society (NMS), in the communication discipline. Web citation counts for JCMC are significantly higher than those for NMS. Furthermore, JCMC receives significantly higher Web citations from the formal scholarly publications posted on the Web than NMS does. The types of Web citations for journal articles were also examined. In the Web context, the impact of a journal can be assessed using more than one type of source: citations from scholarly articles, teaching materials and non-authoritative documents. The OA journal has higher percentages of citations from the third type, which suggests that, in addition to the research community, the impact advantage of open access is also detectable among ordinary users participating in Web-based academic communication. Moreover, our study also proves that the OA journal has impact advantage in developing countries. Compared with NMS, JCMC has more Web citations from developing countries.
  5. Zhang, Y.: ¬The impact of Internet-based electronic resources on formal scholarly communication in the area of library and information science : a citation analysis (1998) 0.01 
    0.0059627807 = product of:
  0.023851123 = sum of:
    0.023851123 = product of:
      0.047702245 = sum of:
        0.047702245 = weight(_text_:22 in 2808) [ClassicSimilarity], result of:
          0.047702245 = score(doc=2808,freq=4.0), product of:
            0.17436278 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.04979191 = queryNorm
            0.27358043 = fieldWeight in 2808, product of:
              2.0 = tf(freq=4.0), with freq of:
                4.0 = termFreq=4.0
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.0390625 = fieldNorm(doc=2808)
      0.5 = coord(1/2)
  0.25 = coord(1/4)
    Date
    30. 1.1999 17:22:22
  6. Zhang, Y.; Broussard, R.; Ke, W.; Gong, X.: Evaluation of a scatter/gather interface for supporting distinct health information search tasks (2014) 0.01 
    0.0055861375 = product of:
  0.02234455 = sum of:
    0.02234455 = product of:
      0.0446891 = sum of:
        0.0446891 = weight(_text_:access in 1261) [ClassicSimilarity], result of:
          0.0446891 = score(doc=1261,freq=4.0), product of:
            0.16876608 = queryWeight, product of:
              3.389428 = idf(docFreq=4053, maxDocs=44218)
              0.04979191 = queryNorm
            0.26479906 = fieldWeight in 1261, product of:
              2.0 = tf(freq=4.0), with freq of:
                4.0 = termFreq=4.0
              3.389428 = idf(docFreq=4053, maxDocs=44218)
              0.0390625 = fieldNorm(doc=1261)
      0.5 = coord(1/2)
  0.25 = coord(1/4)
    Abstract
    Web search engines are important gateways for users to access health information. This study explored whether a search interface based on the Bing API and enabled by Scatter/Gather, a well-known document-clustering technique, can improve health information searches. Forty participants without medical backgrounds were randomly assigned to two interfaces: a baseline interface that resembles typical web search engines and a Scatter/Gather interface. Both groups performed two lookup and two exploratory health-related tasks. It was found that the baseline group was more likely to rephrase queries and less likely to access general-purpose sites than the Scatter/Gather group when completing exploratory tasks. Otherwise, the two groups did not differ in behavior and task performance, with participants in the Scatter/Gather group largely overlooking the features (key words, clusters, and the recluster function) designed to facilitate the exploration of semantic relationships between information objects, a potentially useful means for users in the rather unfamiliar domain of health. The results suggest a strong effect of users' mental models of search on their use of search interfaces and a high cognitive cost associated with using the Scatter/Gather features. It follows that novel features of a search interface should not only be compatible with users' mental models but also provide sufficient affordance to inform users of how they can be used. Compared with the interface, tasks showed more significant impacts on search behavior. In future studies, more effort should be devoted to identify salient features of health-related information needs.
  7. Trace, C.B.; Zhang, Y.; Yi, S.; Williams-Brown, M.Y.: Information practices around genetic testing for ovarian cancer patients (2023) 0.01 
    0.0055861375 = product of:
  0.02234455 = sum of:
    0.02234455 = product of:
      0.0446891 = sum of:
        0.0446891 = weight(_text_:access in 1071) [ClassicSimilarity], result of:
          0.0446891 = score(doc=1071,freq=4.0), product of:
            0.16876608 = queryWeight, product of:
              3.389428 = idf(docFreq=4053, maxDocs=44218)
              0.04979191 = queryNorm
            0.26479906 = fieldWeight in 1071, product of:
              2.0 = tf(freq=4.0), with freq of:
                4.0 = termFreq=4.0
              3.389428 = idf(docFreq=4053, maxDocs=44218)
              0.0390625 = fieldNorm(doc=1071)
      0.5 = coord(1/2)
  0.25 = coord(1/4)
    Abstract
    Knowledge of ovarian cancer patients' information practices around cancer genetic testing (GT) is needed to inform interventions that promote patient access to GT-related information. We interviewed 21 ovarian cancer patients and survivors who had GT as part of the treatment process and analyzed the transcripts using the qualitative content analysis method. We found that patients' information practices, manifested in their information-seeking mode, information sources utilized, information assessment, and information use, showed three distinct styles: passive, semi-active, and active. Patients with the passive style primarily received information from clinical sources, encountered information, or delegated information-seeking to family members; they were not inclined to assess information themselves and seldom used it to learn or influence others. Women with semi-active and active styles adopted more active information-seeking modes to approach information, utilized information sources beyond clinical settings, attempted to assess the information found, and actively used it to learn, educate others, or advocate GT to family and friends. Guided by the social ecological model, we found multiple levels of influences, including personal, interpersonal, organizational, community, and societal, acting as motivators or barriers to patients' information practice. Based on these findings, we discussed strategies to promote patient access to GT-related information.
  8. Zhang, Y.: Developing a holistic model for digital library evaluation (2010) 0.01 
    0.005059587 = product of:
  0.020238347 = sum of:
    0.020238347 = product of:
      0.040476695 = sum of:
        0.040476695 = weight(_text_:22 in 2360) [ClassicSimilarity], result of:
          0.040476695 = score(doc=2360,freq=2.0), product of:
            0.17436278 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.04979191 = queryNorm
            0.23214069 = fieldWeight in 2360, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.046875 = fieldNorm(doc=2360)
      0.5 = coord(1/2)
  0.25 = coord(1/4)
    Abstract
    This article reports the author's recent research in developing a holistic model for various levels of digital library (DL) evaluation in which perceived important criteria from heterogeneous stakeholder groups are organized and presented. To develop such a model, the author applied a three-stage research approach: exploration, confirmation, and verification. During the exploration stage, a literature review was conducted followed by an interview, along with a card sorting technique, to collect important criteria perceived by DL experts. Then the criteria identified were used for developing an online survey during the confirmation stage. Survey respondents (431 in total) from 22 countries rated the importance of the criteria. A holistic DL evaluation model was constructed using statistical techniques. Eventually, the verification stage was devised to test the reliability of the model in the context of searching and evaluating an operational DL. The proposed model fills two lacunae in the DL domain: (a) the lack of a comprehensive and flexible framework to guide and benchmark evaluations, and (b) the uncertainty about what divergence exists among heterogeneous DL stakeholders, including general users.
  9. Zhang, Y.; Jansen, B.J.; Spink, A.: Identification of factors predicting clickthrough in Web searching using neural network analysis (2009) 0.01 
    0.005059587 = product of:
  0.020238347 = sum of:
    0.020238347 = product of:
      0.040476695 = sum of:
        0.040476695 = weight(_text_:22 in 2742) [ClassicSimilarity], result of:
          0.040476695 = score(doc=2742,freq=2.0), product of:
            0.17436278 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.04979191 = queryNorm
            0.23214069 = fieldWeight in 2742, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.046875 = fieldNorm(doc=2742)
      0.5 = coord(1/2)
  0.25 = coord(1/4)
    Date
    22. 3.2009 17:49:11
  10. Zhang, Y.; Wu, M.; Zhang, G.; Lu, J.: Stepping beyond your comfort zone : diffusion-based network analytics for knowledge trajectory recommendation (2023) 0.00 
    0.0042163227 = product of:
  0.01686529 = sum of:
    0.01686529 = product of:
      0.03373058 = sum of:
        0.03373058 = weight(_text_:22 in 994) [ClassicSimilarity], result of:
          0.03373058 = score(doc=994,freq=2.0), product of:
            0.17436278 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.04979191 = queryNorm
            0.19345059 = fieldWeight in 994, 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=994)
      0.5 = coord(1/2)
  0.25 = coord(1/4)
    Date
    22. 6.2023 18:07:12
  11. Zhang, Y.: Beyond quality and accessibility : source selection in consumer health information searching (2014) 0.00 
    0.0039499956 = product of:
  0.015799982 = sum of:
    0.015799982 = product of:
      0.031599965 = sum of:
        0.031599965 = weight(_text_:access in 1252) [ClassicSimilarity], result of:
          0.031599965 = score(doc=1252,freq=2.0), product of:
            0.16876608 = queryWeight, product of:
              3.389428 = idf(docFreq=4053, maxDocs=44218)
              0.04979191 = queryNorm
            0.18724121 = fieldWeight in 1252, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.389428 = idf(docFreq=4053, maxDocs=44218)
              0.0390625 = fieldNorm(doc=1252)
      0.5 = coord(1/2)
  0.25 = coord(1/4)
    Abstract
    A systematic understanding of factors and criteria that affect consumers' selection of sources for health information is necessary for the design of effective health information services and information systems. However, current studies have overly focused on source attributes as indicators for 2 criteria, source quality and accessibility, and overlooked the role of other factors and criteria that help determine source selection. To fill this gap, guided by decision-making theories and the cognitive perspective to information search, we interviewed 30 participants about their reasons for using a wide range of sources for health information. Additionally, we asked each of them to report a critical incident in which sources were selected to fulfill a specific information need. Based on the analysis of the transcripts, 5 categories of factors were identified as influential to source selection: source-related factors, user-related factors, user-source relationships, characteristics of the problematic situation, and social influences. In addition, about a dozen criteria that mediate the influence of the factors on source-selection decisions were identified, including accessibility, quality, usability, interactivity, relevance, usefulness, familiarity, affection, anonymity, and appropriateness. These results significantly expanded the current understanding of the nature of costs and benefits involved in source-selection decisions, and strongly indicated that a personalized approach is needed for information services and information systems to provide effective access to health information sources for consumers.
  12. Zhang, Y.; Kudva, S.: E-books versus print books : readers' choices and preferences across contexts (2014) 0.00 
    0.0039499956 = product of:
  0.015799982 = sum of:
    0.015799982 = product of:
      0.031599965 = sum of:
        0.031599965 = weight(_text_:access in 1335) [ClassicSimilarity], result of:
          0.031599965 = score(doc=1335,freq=2.0), product of:
            0.16876608 = queryWeight, product of:
              3.389428 = idf(docFreq=4053, maxDocs=44218)
              0.04979191 = queryNorm
            0.18724121 = fieldWeight in 1335, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.389428 = idf(docFreq=4053, maxDocs=44218)
              0.0390625 = fieldNorm(doc=1335)
      0.5 = coord(1/2)
  0.25 = coord(1/4)
    Abstract
    With electronic book (e-book) sales and readership rising, are e-books positioned to replace print books? This study examines the preference for e-books and print books in the contexts of reading purpose, reading situation, and contextual variables such as age, gender, education level, race/ethnicity, income, community type, and Internet use. In addition, this study aims to identify factors that contribute to e-book adoption. Participants were a nationally representative sample of 2,986 people in the United States from the Reading Habits Survey, conducted by the Pew Research Center's Internet & American Life Project (http://pewinternet.org/Shared-Content/Data-Sets/2011/December-2011--Reading-Habits.aspx). While the results of this study support the notion that e-books have firmly established a place in people's lives, due to their convenience of access, e-books are not yet positioned to replace print books. Both print books and e-books have unique attributes and serve irreplaceable functions to meet people's reading needs, which may vary by individual demographic, contextual, and situational factors. At this point, the leading significant predictors of e-book adoption are the number of books read, the individual's income, the occurrence and frequency of reading for research topics of interest, and the individual's Internet use, followed by other variables such as race/ethnicity, reading for work/school, age, and education.

Authors

Years

Themes