Document (#33050)

Author

Lim, E.-P.
Liu, Z.
Yin, M.
Goh, D.H.-L.
Theng, Y.-L.
Ng, W.K.

Title

On organizing and accessing geospatial and georeferenced Web resources using the G-Portal system

Source

Information processing and management. 41(2005) no.5, S.1277-1298

Year

2005

Abstract

In order to organise and manage geospatial and georeferenced information on the Web making them convenient for searching and browsing, a digital portal known as G-Portal has been designed and implemented. Compared to other digital libraries, G-Portal is unique for several of its features. It maintains metadata resources in XML with flexible resource schemas. Logical groupings of metadata resources as projects and layers are possible to allow the entire metadata collection to be partitioned differently for users with different information needs. These metadata resources can be displayed in both the classification-based and map-based interfaces provided by G-Portal. G-Portal further incorporates both a query module and an annotation module for users to search metadata and to create additional knowledge for sharing respectively. G-Portal also includes a resource classification module that categorizes resources into one or more hierarchical category trees based on user-defined classification schemas. This paper gives an overview of the G-Portal design and implementation. The portal features will be illustrated using a collection of high school geography examination-related resources.

Field

Geowissenschaften

Similar documents (author)

1. Lee, S.-S.; Theng, Y.-L.; Goh, D.H.-L.: Creative information seeking : Part I: a conceptual framework (2005) 3.01

   3.0068831 = sum of:
     3.0068831 = weight(author_txt:theng in 5891) [ClassicSimilarity], result of:
       3.0068831 = fieldWeight in 5891, product of:
         1.0 = tf(freq=1.0), with freq of:
           1.0 = termFreq=1.0
         9.622026 = idf(docFreq=7, maxDocs=44421)
         0.3125 = fieldNorm(doc=5891)
   

2. Lee, S.-S.; Theng, Y.-L.; Goh, D.H.-L.: Creative information seeking : part II: empirical verification (2007) 3.01

   3.0068831 = sum of:
     3.0068831 = weight(author_txt:theng in 1813) [ClassicSimilarity], result of:
       3.0068831 = fieldWeight in 1813, product of:
         1.0 = tf(freq=1.0), with freq of:
           1.0 = termFreq=1.0
         9.622026 = idf(docFreq=7, maxDocs=44421)
         0.3125 = fieldNorm(doc=1813)
   

3. Zheng, H.; Aung, H.H.; Erdt, M.; Peng, T.-Q.; Raamkumar, A.S.; Theng, Y.-L.: Social media presence of scholarly journals (2019) 2.41

   2.4055066 = sum of:
     2.4055066 = weight(author_txt:theng in 987) [ClassicSimilarity], result of:
       2.4055066 = fieldWeight in 987, product of:
         1.0 = tf(freq=1.0), with freq of:
           1.0 = termFreq=1.0
         9.622026 = idf(docFreq=7, maxDocs=44421)
         0.25 = fieldNorm(doc=987)
   

4. Aung, H.H.; Zheng, H.; Erdt, M.; Aw, A.S.; Sin, S.-C.J.; Theng, Y.-L.: Investigating familiarity and usage of traditional metrics and altmetrics (2019) 2.41

   2.4055066 = sum of:
     2.4055066 = weight(author_txt:theng in 328) [ClassicSimilarity], result of:
       2.4055066 = fieldWeight in 328, product of:
         1.0 = tf(freq=1.0), with freq of:
           1.0 = termFreq=1.0
         9.622026 = idf(docFreq=7, maxDocs=44421)
         0.25 = fieldNorm(doc=328)
   

5. Zheng, H.; Goh, D.H.-L.; Lee, E.W.J.; Lee, C.S.; Theng, Y.-L.: Understanding the effects of message cues on COVID-19 information sharing on Twitter (2022) 2.41

   2.4055066 = sum of:
     2.4055066 = weight(author_txt:theng in 1565) [ClassicSimilarity], result of:
       2.4055066 = fieldWeight in 1565, product of:
         1.0 = tf(freq=1.0), with freq of:
           1.0 = termFreq=1.0
         9.622026 = idf(docFreq=7, maxDocs=44421)
         0.25 = fieldNorm(doc=1565)
   

Similar documents (content)

1. Theng, Y.-L.; Goh, D.H.-L.; Lim, E.-P.; Liu, Z.; Yin, M.; Pang, N.L.-S.; Wong, P.B.-B.: Applying scenario-based design and claims analysis to the design of a digital library of geography examination resources (2005) 0.29

   0.28824252 = sum of:
     0.28824252 = product of:
       1.0294375 = sum of:
         0.07184922 = weight(abstract_txt:geography in 2002) [ClassicSimilarity], result of:
           0.07184922 = score(doc=2002,freq=1.0), product of:
             0.11441662 = queryWeight, product of:
               1.1266112 = boost
               8.037906 = idf(docFreq=38, maxDocs=44421)
               0.01263491 = queryNorm
             0.6279614 = fieldWeight in 2002, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               8.037906 = idf(docFreq=38, maxDocs=44421)
               0.078125 = fieldNorm(doc=2002)
         0.038840503 = weight(abstract_txt:digital in 2002) [ClassicSimilarity], result of:
           0.038840503 = score(doc=2002,freq=3.0), product of:
             0.066328555 = queryWeight, product of:
               1.213095 = boost
               4.3274655 = idf(docFreq=1593, maxDocs=44421)
               0.01263491 = queryNorm
             0.58557737 = fieldWeight in 2002, product of:
               1.7320508 = tf(freq=3.0), with freq of:
                 3.0 = termFreq=3.0
               4.3274655 = idf(docFreq=1593, maxDocs=44421)
               0.078125 = fieldNorm(doc=2002)
         0.023185473 = weight(abstract_txt:based in 2002) [ClassicSimilarity], result of:
           0.023185473 = score(doc=2002,freq=3.0), product of:
             0.053829256 = queryWeight, product of:
               1.3384414 = boost
               3.1830752 = idf(docFreq=5005, maxDocs=44421)
               0.01263491 = queryNorm
             0.4307225 = fieldWeight in 2002, product of:
               1.7320508 = tf(freq=3.0), with freq of:
                 3.0 = termFreq=3.0
               3.1830752 = idf(docFreq=5005, maxDocs=44421)
               0.078125 = fieldNorm(doc=2002)
         0.24231431 = weight(abstract_txt:geospatial in 2002) [ClassicSimilarity], result of:
           0.24231431 = score(doc=2002,freq=2.0), product of:
             0.25731224 = queryWeight, product of:
               2.3893223 = boost
               8.523414 = idf(docFreq=23, maxDocs=44421)
               0.01263491 = queryNorm
             0.9417131 = fieldWeight in 2002, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               8.523414 = idf(docFreq=23, maxDocs=44421)
               0.078125 = fieldNorm(doc=2002)
         0.24650343 = weight(abstract_txt:georeferenced in 2002) [ClassicSimilarity], result of:
           0.24650343 = score(doc=2002,freq=1.0), product of:
             0.32791886 = queryWeight, product of:
               2.6972904 = boost
               9.622026 = idf(docFreq=7, maxDocs=44421)
               0.01263491 = queryNorm
             0.7517208 = fieldWeight in 2002, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               9.622026 = idf(docFreq=7, maxDocs=44421)
               0.078125 = fieldNorm(doc=2002)
         0.06255676 = weight(abstract_txt:resources in 2002) [ClassicSimilarity], result of:
           0.06255676 = score(doc=2002,freq=1.0), product of:
             0.18957207 = queryWeight, product of:
               3.5521584 = boost
               4.2238636 = idf(docFreq=1767, maxDocs=44421)
               0.01263491 = queryNorm
             0.32998934 = fieldWeight in 2002, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               4.2238636 = idf(docFreq=1767, maxDocs=44421)
               0.078125 = fieldNorm(doc=2002)
         0.34418786 = weight(abstract_txt:portal in 2002) [ClassicSimilarity], result of:
           0.34418786 = score(doc=2002,freq=1.0), product of:
             0.6763201 = queryWeight, product of:
               8.2172575 = boost
               6.514082 = idf(docFreq=178, maxDocs=44421)
               0.01263491 = queryNorm
             0.5089127 = fieldWeight in 2002, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               6.514082 = idf(docFreq=178, maxDocs=44421)
               0.078125 = fieldNorm(doc=2002)
       0.28 = coord(7/25)
   

2. Janée, G.; Frew, J.; Hill, L.L.: Issues in georeferenced digital libraries (2004) 0.25

   0.24682957 = sum of:
     0.24682957 = product of:
       1.0284566 = sum of:
         0.038055763 = weight(abstract_txt:digital in 2165) [ClassicSimilarity], result of:
           0.038055763 = score(doc=2165,freq=2.0), product of:
             0.066328555 = queryWeight, product of:
               1.213095 = boost
               4.3274655 = idf(docFreq=1593, maxDocs=44421)
               0.01263491 = queryNorm
             0.57374626 = fieldWeight in 2165, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               4.3274655 = idf(docFreq=1593, maxDocs=44421)
               0.09375 = fieldNorm(doc=2165)
         0.016063366 = weight(abstract_txt:based in 2165) [ClassicSimilarity], result of:
           0.016063366 = score(doc=2165,freq=1.0), product of:
             0.053829256 = queryWeight, product of:
               1.3384414 = boost
               3.1830752 = idf(docFreq=5005, maxDocs=44421)
               0.01263491 = queryNorm
             0.2984133 = fieldWeight in 2165, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               3.1830752 = idf(docFreq=5005, maxDocs=44421)
               0.09375 = fieldNorm(doc=2165)
         0.041190803 = weight(abstract_txt:resource in 2165) [ClassicSimilarity], result of:
           0.041190803 = score(doc=2165,freq=1.0), product of:
             0.088097535 = queryWeight, product of:
               1.3980619 = boost
               4.987297 = idf(docFreq=823, maxDocs=44421)
               0.01263491 = queryNorm
             0.4675591 = fieldWeight in 2165, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               4.987297 = idf(docFreq=823, maxDocs=44421)
               0.09375 = fieldNorm(doc=2165)
         0.29077715 = weight(abstract_txt:geospatial in 2165) [ClassicSimilarity], result of:
           0.29077715 = score(doc=2165,freq=2.0), product of:
             0.25731224 = queryWeight, product of:
               2.3893223 = boost
               8.523414 = idf(docFreq=23, maxDocs=44421)
               0.01263491 = queryNorm
             1.1300557 = fieldWeight in 2165, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               8.523414 = idf(docFreq=23, maxDocs=44421)
               0.09375 = fieldNorm(doc=2165)
         0.5123477 = weight(abstract_txt:georeferenced in 2165) [ClassicSimilarity], result of:
           0.5123477 = score(doc=2165,freq=3.0), product of:
             0.32791886 = queryWeight, product of:
               2.6972904 = boost
               9.622026 = idf(docFreq=7, maxDocs=44421)
               0.01263491 = queryNorm
             1.5624223 = fieldWeight in 2165, product of:
               1.7320508 = tf(freq=3.0), with freq of:
                 3.0 = termFreq=3.0
               9.622026 = idf(docFreq=7, maxDocs=44421)
               0.09375 = fieldNorm(doc=2165)
         0.13002178 = weight(abstract_txt:resources in 2165) [ClassicSimilarity], result of:
           0.13002178 = score(doc=2165,freq=3.0), product of:
             0.18957207 = queryWeight, product of:
               3.5521584 = boost
               4.2238636 = idf(docFreq=1767, maxDocs=44421)
               0.01263491 = queryNorm
             0.68586993 = fieldWeight in 2165, product of:
               1.7320508 = tf(freq=3.0), with freq of:
                 3.0 = termFreq=3.0
               4.2238636 = idf(docFreq=1767, maxDocs=44421)
               0.09375 = fieldNorm(doc=2165)
       0.24 = coord(6/25)
   

3. Lichtenstein, A.; Plank, M.; Neumann, J.: TIB's portal for audiovisual media : combining manual and automatic indexing (2014) 0.16

   0.16387334 = sum of:
     0.16387334 = product of:
       1.0242084 = sum of:
         0.015073742 = weight(abstract_txt:users in 2981) [ClassicSimilarity], result of:
           0.015073742 = score(doc=2981,freq=1.0), product of:
             0.04507243 = queryWeight, product of:
               3.5672934 = idf(docFreq=3408, maxDocs=44421)
               0.01263491 = queryNorm
             0.33443376 = fieldWeight in 2981, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               3.5672934 = idf(docFreq=3408, maxDocs=44421)
               0.09375 = fieldNorm(doc=2981)
         0.016063366 = weight(abstract_txt:based in 2981) [ClassicSimilarity], result of:
           0.016063366 = score(doc=2981,freq=1.0), product of:
             0.053829256 = queryWeight, product of:
               1.3384414 = boost
               3.1830752 = idf(docFreq=5005, maxDocs=44421)
               0.01263491 = queryNorm
             0.2984133 = fieldWeight in 2981, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               3.1830752 = idf(docFreq=5005, maxDocs=44421)
               0.09375 = fieldNorm(doc=2981)
         0.1670205 = weight(abstract_txt:metadata in 2981) [ClassicSimilarity], result of:
           0.1670205 = score(doc=2981,freq=3.0), product of:
             0.21080604 = queryWeight, product of:
               3.4194484 = boost
               4.87927 = idf(docFreq=917, maxDocs=44421)
               0.01263491 = queryNorm
             0.7922947 = fieldWeight in 2981, product of:
               1.7320508 = tf(freq=3.0), with freq of:
                 3.0 = termFreq=3.0
               4.87927 = idf(docFreq=917, maxDocs=44421)
               0.09375 = fieldNorm(doc=2981)
         0.8260508 = weight(abstract_txt:portal in 2981) [ClassicSimilarity], result of:
           0.8260508 = score(doc=2981,freq=4.0), product of:
             0.6763201 = queryWeight, product of:
               8.2172575 = boost
               6.514082 = idf(docFreq=178, maxDocs=44421)
               0.01263491 = queryNorm
             1.2213904 = fieldWeight in 2981, product of:
               2.0 = tf(freq=4.0), with freq of:
                 4.0 = termFreq=4.0
               6.514082 = idf(docFreq=178, maxDocs=44421)
               0.09375 = fieldNorm(doc=2981)
       0.16 = coord(4/25)
   

4. Baldonado, M.Q.W.: ¬A user-centered interface for information exploration in a heterogeneous digital library (2000) 0.15

   0.14792335 = sum of:
     0.14792335 = product of:
       0.6163473 = sum of:
         0.017764574 = weight(abstract_txt:users in 5437) [ClassicSimilarity], result of:
           0.017764574 = score(doc=5437,freq=2.0), product of:
             0.04507243 = queryWeight, product of:
               3.5672934 = idf(docFreq=3408, maxDocs=44421)
               0.01263491 = queryNorm
             0.39413396 = fieldWeight in 5437, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               3.5672934 = idf(docFreq=3408, maxDocs=44421)
               0.078125 = fieldNorm(doc=5437)
         0.038840503 = weight(abstract_txt:digital in 5437) [ClassicSimilarity], result of:
           0.038840503 = score(doc=5437,freq=3.0), product of:
             0.066328555 = queryWeight, product of:
               1.213095 = boost
               4.3274655 = idf(docFreq=1593, maxDocs=44421)
               0.01263491 = queryNorm
             0.58557737 = fieldWeight in 5437, product of:
               1.7320508 = tf(freq=3.0), with freq of:
                 3.0 = termFreq=3.0
               4.3274655 = idf(docFreq=1593, maxDocs=44421)
               0.078125 = fieldNorm(doc=5437)
         0.023185473 = weight(abstract_txt:based in 5437) [ClassicSimilarity], result of:
           0.023185473 = score(doc=5437,freq=3.0), product of:
             0.053829256 = queryWeight, product of:
               1.3384414 = boost
               3.1830752 = idf(docFreq=5005, maxDocs=44421)
               0.01263491 = queryNorm
             0.4307225 = fieldWeight in 5437, product of:
               1.7320508 = tf(freq=3.0), with freq of:
                 3.0 = termFreq=3.0
               3.1830752 = idf(docFreq=5005, maxDocs=44421)
               0.078125 = fieldNorm(doc=5437)
         0.112011105 = weight(abstract_txt:schemas in 5437) [ClassicSimilarity], result of:
           0.112011105 = score(doc=5437,freq=1.0), product of:
             0.19381697 = queryWeight, product of:
               2.0736737 = boost
               7.3974023 = idf(docFreq=73, maxDocs=44421)
               0.01263491 = queryNorm
             0.57792205 = fieldWeight in 5437, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               7.3974023 = idf(docFreq=73, maxDocs=44421)
               0.078125 = fieldNorm(doc=5437)
         0.08035778 = weight(abstract_txt:metadata in 5437) [ClassicSimilarity], result of:
           0.08035778 = score(doc=5437,freq=1.0), product of:
             0.21080604 = queryWeight, product of:
               3.4194484 = boost
               4.87927 = idf(docFreq=917, maxDocs=44421)
               0.01263491 = queryNorm
             0.38119298 = fieldWeight in 5437, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               4.87927 = idf(docFreq=917, maxDocs=44421)
               0.078125 = fieldNorm(doc=5437)
         0.34418786 = weight(abstract_txt:portal in 5437) [ClassicSimilarity], result of:
           0.34418786 = score(doc=5437,freq=1.0), product of:
             0.6763201 = queryWeight, product of:
               8.2172575 = boost
               6.514082 = idf(docFreq=178, maxDocs=44421)
               0.01263491 = queryNorm
             0.5089127 = fieldWeight in 5437, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               6.514082 = idf(docFreq=178, maxDocs=44421)
               0.078125 = fieldNorm(doc=5437)
       0.24 = coord(6/25)
   

5. Wackerow, J.: ¬The Data Documentation Initiative (DDI) (2008) 0.14

   0.13851953 = sum of:
     0.13851953 = product of:
       0.4947126 = sum of:
         0.006280726 = weight(abstract_txt:users in 3662) [ClassicSimilarity], result of:
           0.006280726 = score(doc=3662,freq=1.0), product of:
             0.04507243 = queryWeight, product of:
               3.5672934 = idf(docFreq=3408, maxDocs=44421)
               0.01263491 = queryNorm
             0.1393474 = fieldWeight in 3662, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               3.5672934 = idf(docFreq=3408, maxDocs=44421)
               0.0390625 = fieldNorm(doc=3662)
         0.019667923 = weight(abstract_txt:collection in 3662) [ClassicSimilarity], result of:
           0.019667923 = score(doc=3662,freq=2.0), product of:
             0.07657143 = queryWeight, product of:
               1.3034005 = boost
               4.649612 = idf(docFreq=1154, maxDocs=44421)
               0.01263491 = queryNorm
             0.25685722 = fieldWeight in 3662, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               4.649612 = idf(docFreq=1154, maxDocs=44421)
               0.0390625 = fieldNorm(doc=3662)
         0.006693069 = weight(abstract_txt:based in 3662) [ClassicSimilarity], result of:
           0.006693069 = score(doc=3662,freq=1.0), product of:
             0.053829256 = queryWeight, product of:
               1.3384414 = boost
               3.1830752 = idf(docFreq=5005, maxDocs=44421)
               0.01263491 = queryNorm
             0.12433887 = fieldWeight in 3662, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               3.1830752 = idf(docFreq=5005, maxDocs=44421)
               0.0390625 = fieldNorm(doc=3662)
         0.056005552 = weight(abstract_txt:schemas in 3662) [ClassicSimilarity], result of:
           0.056005552 = score(doc=3662,freq=1.0), product of:
             0.19381697 = queryWeight, product of:
               2.0736737 = boost
               7.3974023 = idf(docFreq=73, maxDocs=44421)
               0.01263491 = queryNorm
             0.28896102 = fieldWeight in 3662, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               7.3974023 = idf(docFreq=73, maxDocs=44421)
               0.0390625 = fieldNorm(doc=3662)
         0.15361361 = weight(abstract_txt:module in 3662) [ClassicSimilarity], result of:
           0.15361361 = score(doc=3662,freq=4.0), product of:
             0.2738638 = queryWeight, product of:
               3.0189605 = boost
               7.179679 = idf(docFreq=91, maxDocs=44421)
               0.01263491 = queryNorm
             0.56091243 = fieldWeight in 3662, product of:
               2.0 = tf(freq=4.0), with freq of:
                 4.0 = termFreq=4.0
               7.179679 = idf(docFreq=91, maxDocs=44421)
               0.0390625 = fieldNorm(doc=3662)
         0.08035778 = weight(abstract_txt:metadata in 3662) [ClassicSimilarity], result of:
           0.08035778 = score(doc=3662,freq=4.0), product of:
             0.21080604 = queryWeight, product of:
               3.4194484 = boost
               4.87927 = idf(docFreq=917, maxDocs=44421)
               0.01263491 = queryNorm
             0.38119298 = fieldWeight in 3662, product of:
               2.0 = tf(freq=4.0), with freq of:
                 4.0 = termFreq=4.0
               4.87927 = idf(docFreq=917, maxDocs=44421)
               0.0390625 = fieldNorm(doc=3662)
         0.17209393 = weight(abstract_txt:portal in 3662) [ClassicSimilarity], result of:
           0.17209393 = score(doc=3662,freq=1.0), product of:
             0.6763201 = queryWeight, product of:
               8.2172575 = boost
               6.514082 = idf(docFreq=178, maxDocs=44421)
               0.01263491 = queryNorm
             0.25445634 = fieldWeight in 3662, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               6.514082 = idf(docFreq=178, maxDocs=44421)
               0.0390625 = fieldNorm(doc=3662)
       0.28 = coord(7/25)