Search (7 results, page 1 of 1)

  • × author_ss:"Liu, J."
  1. Liu, J.: CIP in China : the development and status quo (1996) 0.08
    0.07847315 = product of:
      0.18310402 = sum of:
        0.08483948 = weight(_text_:united in 5528) [ClassicSimilarity], result of:
          0.08483948 = score(doc=5528,freq=2.0), product of:
            0.22812355 = queryWeight, product of:
              5.6101127 = idf(docFreq=439, maxDocs=44218)
              0.04066292 = queryNorm
            0.37190145 = fieldWeight in 5528, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              5.6101127 = idf(docFreq=439, maxDocs=44218)
              0.046875 = fieldNorm(doc=5528)
        0.081736766 = weight(_text_:states in 5528) [ClassicSimilarity], result of:
          0.081736766 = score(doc=5528,freq=2.0), product of:
            0.22391328 = queryWeight, product of:
              5.506572 = idf(docFreq=487, maxDocs=44218)
              0.04066292 = queryNorm
            0.3650376 = fieldWeight in 5528, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              5.506572 = idf(docFreq=487, maxDocs=44218)
              0.046875 = fieldNorm(doc=5528)
        0.016527792 = product of:
          0.033055585 = sum of:
            0.033055585 = weight(_text_:22 in 5528) [ClassicSimilarity], result of:
              0.033055585 = score(doc=5528,freq=2.0), product of:
                0.14239462 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.04066292 = queryNorm
                0.23214069 = fieldWeight in 5528, 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=5528)
          0.5 = coord(1/2)
      0.42857143 = coord(3/7)
    
    Abstract
    This paper provides a brief overview of the development and current status of the Cataloging-in-Publication (CIP) project in China. The China CIP project is a new one implemented in 1993. In the paper, the development of CIP in the world is described, followed by when and how it was introduced into China. The paper tells the significances of CIP in detail. The implementation of the CIP project and differences of CIP work in China from that in the United States are also reflected here. Finally, the contribution discusses the problems in implementing the project and suggests ways to solve them. The project combines the publishing house, library, and distributor into the document information system. CIP is not only a kind of cataloging, but also a bond among them. It is believed that the CIP project in China has a bright future.
    Source
    Cataloging and classification quarterly. 22(1996) no.1, S.69-76
  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) 0.01
    0.010350773 = product of:
      0.072455406 = sum of:
        0.072455406 = sum of:
          0.044909086 = weight(_text_:design in 993) [ClassicSimilarity], result of:
            0.044909086 = score(doc=993,freq=4.0), product of:
              0.15288728 = queryWeight, product of:
                3.7598698 = idf(docFreq=2798, maxDocs=44218)
                0.04066292 = queryNorm
              0.29373983 = fieldWeight in 993, product of:
                2.0 = tf(freq=4.0), with freq of:
                  4.0 = termFreq=4.0
                3.7598698 = idf(docFreq=2798, maxDocs=44218)
                0.0390625 = fieldNorm(doc=993)
          0.027546322 = weight(_text_:22 in 993) [ClassicSimilarity], result of:
            0.027546322 = score(doc=993,freq=2.0), product of:
              0.14239462 = queryWeight, product of:
                3.5018296 = idf(docFreq=3622, maxDocs=44218)
                0.04066292 = 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)
      0.14285715 = coord(1/7)
    
    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. Zhou, D.; Lawless, S.; Wu, X.; Zhao, W.; Liu, J.: ¬A study of user profile representation for personalized cross-language information retrieval (2016) 0.01
    0.008471692 = product of:
      0.05930184 = sum of:
        0.05930184 = sum of:
          0.03175552 = weight(_text_:design in 3167) [ClassicSimilarity], result of:
            0.03175552 = score(doc=3167,freq=2.0), product of:
              0.15288728 = queryWeight, product of:
                3.7598698 = idf(docFreq=2798, maxDocs=44218)
                0.04066292 = queryNorm
              0.20770542 = fieldWeight in 3167, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                3.7598698 = idf(docFreq=2798, maxDocs=44218)
                0.0390625 = fieldNorm(doc=3167)
          0.027546322 = weight(_text_:22 in 3167) [ClassicSimilarity], result of:
            0.027546322 = score(doc=3167,freq=2.0), product of:
              0.14239462 = queryWeight, product of:
                3.5018296 = idf(docFreq=3622, maxDocs=44218)
                0.04066292 = queryNorm
              0.19345059 = fieldWeight in 3167, 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=3167)
      0.14285715 = coord(1/7)
    
    Abstract
    Purpose - With an increase in the amount of multilingual content on the World Wide Web, users are often striving to access information provided in a language of which they are non-native speakers. The purpose of this paper is to present a comprehensive study of user profile representation techniques and investigate their use in personalized cross-language information retrieval (CLIR) systems through the means of personalized query expansion. Design/methodology/approach - The user profiles consist of weighted terms computed by using frequency-based methods such as tf-idf and BM25, as well as various latent semantic models trained on monolingual documents and cross-lingual comparable documents. This paper also proposes an automatic evaluation method for comparing various user profile generation techniques and query expansion methods. Findings - Experimental results suggest that latent semantic-weighted user profile representation techniques are superior to frequency-based methods, and are particularly suitable for users with a sufficient amount of historical data. The study also confirmed that user profiles represented by latent semantic models trained on a cross-lingual level gained better performance than the models trained on a monolingual level. Originality/value - Previous studies on personalized information retrieval systems have primarily investigated user profiles and personalization strategies on a monolingual level. The effect of utilizing such monolingual profiles for personalized CLIR remains unclear. The current study fills the gap by a comprehensive study of user profile representation for personalized CLIR and a novel personalized CLIR evaluation methodology to ensure repeatable and controlled experiments can be conducted.
    Date
    20. 1.2015 18:30:22
  4. Zhang, X.; Li, Y.; Liu, J.; Zhang, Y.: Effects of interaction design in digital libraries on user interactions (2008) 0.01
    0.005071964 = product of:
      0.03550375 = sum of:
        0.03550375 = product of:
          0.0710075 = sum of:
            0.0710075 = weight(_text_:design in 1898) [ClassicSimilarity], result of:
              0.0710075 = score(doc=1898,freq=10.0), product of:
                0.15288728 = queryWeight, product of:
                  3.7598698 = idf(docFreq=2798, maxDocs=44218)
                  0.04066292 = queryNorm
                0.46444345 = fieldWeight in 1898, product of:
                  3.1622777 = tf(freq=10.0), with freq of:
                    10.0 = termFreq=10.0
                  3.7598698 = idf(docFreq=2798, maxDocs=44218)
                  0.0390625 = fieldNorm(doc=1898)
          0.5 = coord(1/2)
      0.14285715 = coord(1/7)
    
    Abstract
    Purpose - This study aims to investigate the effects of different search and browse features in digital libraries (DLs) on task interactions, and what features would lead to poor user experience. Design/methodology/approach - Three operational DLs: ACM, IEEE CS, and IEEE Xplore are used in this study. These three DLs present different features in their search and browsing designs. Two information-seeking tasks are constructed: one search task and one browsing task. An experiment was conducted in a usability laboratory. Data from 35 participants are collected on a set of measures for user interactions. Findings - The results demonstrate significant differences in many aspects of the user interactions between the three DLs. For both search and browse designs, the features that lead to poor user interactions are identified. Research limitations/implications - User interactions are affected by specific design features in DLs. Some of the design features may lead to poor user performance and should be improved. The study was limited mainly in the variety and the number of tasks used. Originality/value - The study provided empirical evidence to the effects of interaction design features in DLs on user interactions and performance. The results contribute to our knowledge about DL designs in general and about the three operational DLs in particular.
  5. Liu, J.; Li, Y.; Hastings, S.K.: Simplified scheme of search task difficulty reasons (2019) 0.00
    0.0027219015 = product of:
      0.01905331 = sum of:
        0.01905331 = product of:
          0.03810662 = sum of:
            0.03810662 = weight(_text_:design in 5224) [ClassicSimilarity], result of:
              0.03810662 = score(doc=5224,freq=2.0), product of:
                0.15288728 = queryWeight, product of:
                  3.7598698 = idf(docFreq=2798, maxDocs=44218)
                  0.04066292 = queryNorm
                0.24924651 = fieldWeight in 5224, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.7598698 = idf(docFreq=2798, maxDocs=44218)
                  0.046875 = fieldNorm(doc=5224)
          0.5 = coord(1/2)
      0.14285715 = coord(1/7)
    
    Abstract
    This article reports on a study that aimed at simplifying a search task difficulty reason scheme. Liu, Kim, and Creel (2015) (denoted LKC15) developed a 21-item search task difficulty reason scheme using a controlled laboratory experiment. The current study simplified the scheme through another experiment that followed the same design as LKC15 and involved 32 university students. The study had one added questionnaire item that provided a list of the 21 difficulty reasons in the multiple-choice format. By comparing the current study with LKC15, a concept of primary top difficulty reasons was proposed, which reasonably simplified the 21-item scheme to an 8-item top reason list. This limited number of reasons is more manageable and makes it feasible for search systems to predict task difficulty reasons from observable user behaviors, which builds the basis for systems to improve user satisfaction based on predicted search difficulty reasons.
  6. Liu, J.; Zhang, X.: ¬The role of domain knowledge in document selection from search results (2019) 0.00
    0.0022682515 = product of:
      0.01587776 = sum of:
        0.01587776 = product of:
          0.03175552 = sum of:
            0.03175552 = weight(_text_:design in 5410) [ClassicSimilarity], result of:
              0.03175552 = score(doc=5410,freq=2.0), product of:
                0.15288728 = queryWeight, product of:
                  3.7598698 = idf(docFreq=2798, maxDocs=44218)
                  0.04066292 = queryNorm
                0.20770542 = fieldWeight in 5410, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.7598698 = idf(docFreq=2798, maxDocs=44218)
                  0.0390625 = fieldNorm(doc=5410)
          0.5 = coord(1/2)
      0.14285715 = coord(1/7)
    
    Abstract
    It is a frequently seen scenario that when people are not familiar with their search topics, they use a simple keyword search, which leads to a large amount of search results in multiple pages. This makes it difficult for users to pick relevant documents, especially given that they are not knowledgeable of the topics. To explore how systems can better help users find relevant documents from search results, the current research analyzed document selection behaviors of users with different levels of domain knowledge (DK). Data were collected in a laboratory study with 35 participants each searching on four tasks in the genomics domain. The results show that users with high and low DK levels selected different sets of documents to view; those high in DK read more documents and gave higher relevance ratings for the viewed documents than those low in DK did. Users with low DK tended to select documents ranking toward the top of the search result lists, and those with high in DK tended to also select documents ranking down the search result lists. The findings help design search systems that can personalize search results to users with different levels of DK.
  7. Jiang, Y.; Meng, R.; Huang, Y.; Lu, W.; Liu, J.: Generating keyphrases for readers : a controllable keyphrase generation framework (2023) 0.00
    0.0019675945 = product of:
      0.013773161 = sum of:
        0.013773161 = product of:
          0.027546322 = sum of:
            0.027546322 = weight(_text_:22 in 1012) [ClassicSimilarity], result of:
              0.027546322 = score(doc=1012,freq=2.0), product of:
                0.14239462 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.04066292 = queryNorm
                0.19345059 = fieldWeight in 1012, 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=1012)
          0.5 = coord(1/2)
      0.14285715 = coord(1/7)
    
    Date
    22. 6.2023 14:55:20