Document (#21045)

Author

Rowley, J.

Title

¬The changing face of current awareness services

Source

Journal of librarianship and information science. 30(1998) no.3, S.177-183

Year

1998

Abstract

Presents a state of the art review of current awareness services in 1997 noting: the components of typical current awareness services; the range and types of databases that may be scanned during searches; and the role of feedback and document delivery mechanisms. Includes a checklist of criteria which may be used to evaluate current awreness services, including: database coverage; timeliness and currency; cost; and mechansims for creating and maintaining user SDI profiles. Discusses the main types of current awareness services: contents page services; abstracting and indexing services; and integrated online products (such as Engineering Index's Engineering Village), including SDI. Considers the concept of currency and remarks on the tendency for current awareness services to be products of a producer led rather than a user led culture

Theme

Informationsdienstleistungen

Object

SDI

Similar documents (author)

1. Rowley, J.: Mechanised in-house information systems (1979) 4.94

   4.938556 = sum of:
     4.938556 = weight(author_txt:rowley in 3044) [ClassicSimilarity], result of:
       4.938556 = score(doc=3044,freq=1.0), product of:
         0.99999994 = queryWeight, product of:
           7.9016905 = idf(docFreq=42, maxDocs=42740)
           0.12655519 = queryNorm
         4.9385567 = fieldWeight in 3044, product of:
           1.0 = tf(freq=1.0), with freq of:
             1.0 = termFreq=1.0
           7.9016905 = idf(docFreq=42, maxDocs=42740)
           0.625 = fieldNorm(doc=3044)
   

2. Rowley, J.E.: Selection and evaluation of software (1993) 4.94

   4.938556 = sum of:
     4.938556 = weight(author_txt:rowley in 6048) [ClassicSimilarity], result of:
       4.938556 = score(doc=6048,freq=1.0), product of:
         0.99999994 = queryWeight, product of:
           7.9016905 = idf(docFreq=42, maxDocs=42740)
           0.12655519 = queryNorm
         4.9385567 = fieldWeight in 6048, product of:
           1.0 = tf(freq=1.0), with freq of:
             1.0 = termFreq=1.0
           7.9016905 = idf(docFreq=42, maxDocs=42740)
           0.625 = fieldNorm(doc=6048)
   

3. Rowley, J.: ¬The controlled versus natural indexing languages debate revisited : a perspective on information retrieval practice and research (1994) 4.94

   4.938556 = sum of:
     4.938556 = weight(author_txt:rowley in 7151) [ClassicSimilarity], result of:
       4.938556 = score(doc=7151,freq=1.0), product of:
         0.99999994 = queryWeight, product of:
           7.9016905 = idf(docFreq=42, maxDocs=42740)
           0.12655519 = queryNorm
         4.9385567 = fieldWeight in 7151, product of:
           1.0 = tf(freq=1.0), with freq of:
             1.0 = termFreq=1.0
           7.9016905 = idf(docFreq=42, maxDocs=42740)
           0.625 = fieldNorm(doc=7151)
   

4. Rowley, J.: Revolution in current awareness services (1994) 4.94

   4.938556 = sum of:
     4.938556 = weight(author_txt:rowley in 7184) [ClassicSimilarity], result of:
       4.938556 = score(doc=7184,freq=1.0), product of:
         0.99999994 = queryWeight, product of:
           7.9016905 = idf(docFreq=42, maxDocs=42740)
           0.12655519 = queryNorm
         4.9385567 = fieldWeight in 7184, product of:
           1.0 = tf(freq=1.0), with freq of:
             1.0 = termFreq=1.0
           7.9016905 = idf(docFreq=42, maxDocs=42740)
           0.625 = fieldNorm(doc=7184)
   

5. Rowley, J.E.: Pricing strategies for CD-ROM products (1994) 4.94

   4.938556 = sum of:
     4.938556 = weight(author_txt:rowley in 7915) [ClassicSimilarity], result of:
       4.938556 = score(doc=7915,freq=1.0), product of:
         0.99999994 = queryWeight, product of:
           7.9016905 = idf(docFreq=42, maxDocs=42740)
           0.12655519 = queryNorm
         4.9385567 = fieldWeight in 7915, product of:
           1.0 = tf(freq=1.0), with freq of:
             1.0 = termFreq=1.0
           7.9016905 = idf(docFreq=42, maxDocs=42740)
           0.625 = fieldNorm(doc=7915)
   

Similar documents (content)

1. Mountifield, H.M.: Electronic current awareness service : a survival tool for the information age? (1995) 0.47

   0.47176486 = sum of:
     0.47176486 = product of:
       1.6848745 = sum of:
         0.061184 = weight(abstract_txt:delivery in 3448) [ClassicSimilarity], result of:
           0.061184 = score(doc=3448,freq=1.0), product of:
             0.09290784 = queryWeight, product of:
               1.0005883 = boost
               6.0209837 = idf(docFreq=281, maxDocs=42740)
               0.015421603 = queryNorm
             0.6585451 = fieldWeight in 3448, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               6.0209837 = idf(docFreq=281, maxDocs=42740)
               0.109375 = fieldNorm(doc=3448)
         0.066688426 = weight(abstract_txt:including in 3448) [ClassicSimilarity], result of:
           0.066688426 = score(doc=3448,freq=2.0), product of:
             0.09839978 = queryWeight, product of:
               1.456268 = boost
               4.381505 = idf(docFreq=1452, maxDocs=42740)
               0.015421603 = queryNorm
             0.6777294 = fieldWeight in 3448, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               4.381505 = idf(docFreq=1452, maxDocs=42740)
               0.109375 = fieldNorm(doc=3448)
         0.18923809 = weight(abstract_txt:timeliness in 3448) [ClassicSimilarity], result of:
           0.18923809 = score(doc=3448,freq=1.0), product of:
             0.1972269 = queryWeight, product of:
               1.4578482 = boost
               8.772519 = idf(docFreq=17, maxDocs=42740)
               0.015421603 = queryNorm
             0.9594943 = fieldWeight in 3448, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               8.772519 = idf(docFreq=17, maxDocs=42740)
               0.109375 = fieldNorm(doc=3448)
         0.2414651 = weight(abstract_txt:currency in 3448) [ClassicSimilarity], result of:
           0.2414651 = score(doc=3448,freq=1.0), product of:
             0.29233 = queryWeight, product of:
               2.5100415 = boost
               7.5520167 = idf(docFreq=60, maxDocs=42740)
               0.015421603 = queryNorm
             0.8260018 = fieldWeight in 3448, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               7.5520167 = idf(docFreq=60, maxDocs=42740)
               0.109375 = fieldNorm(doc=3448)
         0.23278101 = weight(abstract_txt:current in 3448) [ClassicSimilarity], result of:
           0.23278101 = score(doc=3448,freq=3.0), product of:
             0.28527835 = queryWeight, product of:
               4.2947636 = boost
               4.3072495 = idf(docFreq=1564, maxDocs=42740)
               0.015421603 = queryNorm
             0.8159785 = fieldWeight in 3448, product of:
               1.7320508 = tf(freq=3.0), with freq of:
                 3.0 = termFreq=3.0
               4.3072495 = idf(docFreq=1564, maxDocs=42740)
               0.109375 = fieldNorm(doc=3448)
         0.52605796 = weight(abstract_txt:awareness in 3448) [ClassicSimilarity], result of:
           0.52605796 = score(doc=3448,freq=2.0), product of:
             0.5292118 = queryWeight, product of:
               5.339849 = boost
               6.4264483 = idf(docFreq=187, maxDocs=42740)
               0.015421603 = queryNorm
             0.9940405 = fieldWeight in 3448, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               6.4264483 = idf(docFreq=187, maxDocs=42740)
               0.109375 = fieldNorm(doc=3448)
         0.36746 = weight(abstract_txt:services in 3448) [ClassicSimilarity], result of:
           0.36746 = score(doc=3448,freq=5.0), product of:
             0.35903808 = queryWeight, product of:
               5.5634537 = boost
               4.184721 = idf(docFreq=1768, maxDocs=42740)
               0.015421603 = queryNorm
             1.0234569 = fieldWeight in 3448, product of:
               2.236068 = tf(freq=5.0), with freq of:
                 5.0 = termFreq=5.0
               4.184721 = idf(docFreq=1768, maxDocs=42740)
               0.109375 = fieldNorm(doc=3448)
       0.28 = coord(7/25)
   

2. Rowley, J.: Current awareness in an electronic age (1998) 0.31

   0.314972 = sum of:
     0.314972 = product of:
       1.3123834 = sum of:
         0.08740572 = weight(abstract_txt:delivery in 184) [ClassicSimilarity], result of:
           0.08740572 = score(doc=184,freq=1.0), product of:
             0.09290784 = queryWeight, product of:
               1.0005883 = boost
               6.0209837 = idf(docFreq=281, maxDocs=42740)
               0.015421603 = queryNorm
             0.94077873 = fieldWeight in 184, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               6.0209837 = idf(docFreq=281, maxDocs=42740)
               0.15625 = fieldNorm(doc=184)
         0.1296754 = weight(abstract_txt:profiles in 184) [ClassicSimilarity], result of:
           0.1296754 = score(doc=184,freq=1.0), product of:
             0.120854884 = queryWeight, product of:
               1.1411989 = boost
               6.8671 = idf(docFreq=120, maxDocs=42740)
               0.015421603 = queryNorm
             1.0729843 = fieldWeight in 184, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               6.8671 = idf(docFreq=120, maxDocs=42740)
               0.15625 = fieldNorm(doc=184)
         0.03990591 = weight(abstract_txt:user in 184) [ClassicSimilarity], result of:
           0.03990591 = score(doc=184,freq=1.0), product of:
             0.06940551 = queryWeight, product of:
               1.2230415 = boost
               3.6797917 = idf(docFreq=2930, maxDocs=42740)
               0.015421603 = queryNorm
             0.57496744 = fieldWeight in 184, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               3.6797917 = idf(docFreq=2930, maxDocs=42740)
               0.15625 = fieldNorm(doc=184)
         0.19199453 = weight(abstract_txt:current in 184) [ClassicSimilarity], result of:
           0.19199453 = score(doc=184,freq=1.0), product of:
             0.28527835 = queryWeight, product of:
               4.2947636 = boost
               4.3072495 = idf(docFreq=1564, maxDocs=42740)
               0.015421603 = queryNorm
             0.6730077 = fieldWeight in 184, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               4.3072495 = idf(docFreq=1564, maxDocs=42740)
               0.15625 = fieldNorm(doc=184)
         0.5313988 = weight(abstract_txt:awareness in 184) [ClassicSimilarity], result of:
           0.5313988 = score(doc=184,freq=1.0), product of:
             0.5292118 = queryWeight, product of:
               5.339849 = boost
               6.4264483 = idf(docFreq=187, maxDocs=42740)
               0.015421603 = queryNorm
             1.0041325 = fieldWeight in 184, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               6.4264483 = idf(docFreq=187, maxDocs=42740)
               0.15625 = fieldNorm(doc=184)
         0.33200303 = weight(abstract_txt:services in 184) [ClassicSimilarity], result of:
           0.33200303 = score(doc=184,freq=2.0), product of:
             0.35903808 = queryWeight, product of:
               5.5634537 = boost
               4.184721 = idf(docFreq=1768, maxDocs=42740)
               0.015421603 = queryNorm
             0.9247014 = fieldWeight in 184, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               4.184721 = idf(docFreq=1768, maxDocs=42740)
               0.15625 = fieldNorm(doc=184)
       0.24 = coord(6/25)
   

3. Butler, J.T.: ¬A current awareness service using microcomputer databases and electronic mail (1993) 0.22

   0.21816468 = sum of:
     0.21816468 = product of:
       1.0908234 = sum of:
         0.10374032 = weight(abstract_txt:profiles in 4539) [ClassicSimilarity], result of:
           0.10374032 = score(doc=4539,freq=1.0), product of:
             0.120854884 = queryWeight, product of:
               1.1411989 = boost
               6.8671 = idf(docFreq=120, maxDocs=42740)
               0.015421603 = queryNorm
             0.8583875 = fieldWeight in 4539, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               6.8671 = idf(docFreq=120, maxDocs=42740)
               0.125 = fieldNorm(doc=4539)
         0.03192473 = weight(abstract_txt:user in 4539) [ClassicSimilarity], result of:
           0.03192473 = score(doc=4539,freq=1.0), product of:
             0.06940551 = queryWeight, product of:
               1.2230415 = boost
               3.6797917 = idf(docFreq=2930, maxDocs=42740)
               0.015421603 = queryNorm
             0.45997396 = fieldWeight in 4539, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               3.6797917 = idf(docFreq=2930, maxDocs=42740)
               0.125 = fieldNorm(doc=4539)
         0.13673216 = weight(abstract_txt:engineering in 4539) [ClassicSimilarity], result of:
           0.13673216 = score(doc=4539,freq=1.0), product of:
             0.18304433 = queryWeight, product of:
               1.9861972 = boost
               5.975915 = idf(docFreq=294, maxDocs=42740)
               0.015421603 = queryNorm
             0.74698937 = fieldWeight in 4539, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               5.975915 = idf(docFreq=294, maxDocs=42740)
               0.125 = fieldNorm(doc=4539)
         0.21721701 = weight(abstract_txt:current in 4539) [ClassicSimilarity], result of:
           0.21721701 = score(doc=4539,freq=2.0), product of:
             0.28527835 = queryWeight, product of:
               4.2947636 = boost
               4.3072495 = idf(docFreq=1564, maxDocs=42740)
               0.015421603 = queryNorm
             0.7614213 = fieldWeight in 4539, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               4.3072495 = idf(docFreq=1564, maxDocs=42740)
               0.125 = fieldNorm(doc=4539)
         0.6012091 = weight(abstract_txt:awareness in 4539) [ClassicSimilarity], result of:
           0.6012091 = score(doc=4539,freq=2.0), product of:
             0.5292118 = queryWeight, product of:
               5.339849 = boost
               6.4264483 = idf(docFreq=187, maxDocs=42740)
               0.015421603 = queryNorm
             1.1360463 = fieldWeight in 4539, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               6.4264483 = idf(docFreq=187, maxDocs=42740)
               0.125 = fieldNorm(doc=4539)
       0.2 = coord(5/25)
   

4. Rowley, J.: Revolution in current awareness services (1994) 0.14

   0.14407472 = sum of:
     0.14407472 = product of:
       0.7203736 = sum of:
         0.030592 = weight(abstract_txt:delivery in 7184) [ClassicSimilarity], result of:
           0.030592 = score(doc=7184,freq=1.0), product of:
             0.09290784 = queryWeight, product of:
               1.0005883 = boost
               6.0209837 = idf(docFreq=281, maxDocs=42740)
               0.015421603 = queryNorm
             0.32927254 = fieldWeight in 7184, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               6.0209837 = idf(docFreq=281, maxDocs=42740)
               0.0546875 = fieldNorm(doc=7184)
         0.04951197 = weight(abstract_txt:products in 7184) [ClassicSimilarity], result of:
           0.04951197 = score(doc=7184,freq=1.0), product of:
             0.1613605 = queryWeight, product of:
               1.8648454 = boost
               5.610801 = idf(docFreq=424, maxDocs=42740)
               0.015421603 = queryNorm
             0.3068407 = fieldWeight in 7184, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               5.610801 = idf(docFreq=424, maxDocs=42740)
               0.0546875 = fieldNorm(doc=7184)
         0.13439618 = weight(abstract_txt:current in 7184) [ClassicSimilarity], result of:
           0.13439618 = score(doc=7184,freq=4.0), product of:
             0.28527835 = queryWeight, product of:
               4.2947636 = boost
               4.3072495 = idf(docFreq=1564, maxDocs=42740)
               0.015421603 = queryNorm
             0.47110543 = fieldWeight in 7184, product of:
               2.0 = tf(freq=4.0), with freq of:
                 4.0 = termFreq=4.0
               4.3072495 = idf(docFreq=1564, maxDocs=42740)
               0.0546875 = fieldNorm(doc=7184)
         0.3221434 = weight(abstract_txt:awareness in 7184) [ClassicSimilarity], result of:
           0.3221434 = score(doc=7184,freq=3.0), product of:
             0.5292118 = queryWeight, product of:
               5.339849 = boost
               6.4264483 = idf(docFreq=187, maxDocs=42740)
               0.015421603 = queryNorm
             0.608723 = fieldWeight in 7184, product of:
               1.7320508 = tf(freq=3.0), with freq of:
                 3.0 = termFreq=3.0
               6.4264483 = idf(docFreq=187, maxDocs=42740)
               0.0546875 = fieldNorm(doc=7184)
         0.18373 = weight(abstract_txt:services in 7184) [ClassicSimilarity], result of:
           0.18373 = score(doc=7184,freq=5.0), product of:
             0.35903808 = queryWeight, product of:
               5.5634537 = boost
               4.184721 = idf(docFreq=1768, maxDocs=42740)
               0.015421603 = queryNorm
             0.51172847 = fieldWeight in 7184, product of:
               2.236068 = tf(freq=5.0), with freq of:
                 5.0 = termFreq=5.0
               4.184721 = idf(docFreq=1768, maxDocs=42740)
               0.0546875 = fieldNorm(doc=7184)
       0.2 = coord(5/25)
   

5. Kibbee, J.: ¬A virtual library for librarians : JANET's Bulletin Board for Libraries (1994) 0.14

   0.13910072 = sum of:
     0.13910072 = product of:
       0.8693795 = sum of:
         0.07837092 = weight(abstract_txt:maintaining in 955) [ClassicSimilarity], result of:
           0.07837092 = score(doc=955,freq=1.0), product of:
             0.10957977 = queryWeight, product of:
               1.0866618 = boost
               6.5389266 = idf(docFreq=167, maxDocs=42740)
               0.015421603 = queryNorm
             0.7151951 = fieldWeight in 955, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               6.5389266 = idf(docFreq=167, maxDocs=42740)
               0.109375 = fieldNorm(doc=955)
         0.13439618 = weight(abstract_txt:current in 955) [ClassicSimilarity], result of:
           0.13439618 = score(doc=955,freq=1.0), product of:
             0.28527835 = queryWeight, product of:
               4.2947636 = boost
               4.3072495 = idf(docFreq=1564, maxDocs=42740)
               0.015421603 = queryNorm
             0.47110543 = fieldWeight in 955, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               4.3072495 = idf(docFreq=1564, maxDocs=42740)
               0.109375 = fieldNorm(doc=955)
         0.37197918 = weight(abstract_txt:awareness in 955) [ClassicSimilarity], result of:
           0.37197918 = score(doc=955,freq=1.0), product of:
             0.5292118 = queryWeight, product of:
               5.339849 = boost
               6.4264483 = idf(docFreq=187, maxDocs=42740)
               0.015421603 = queryNorm
             0.7028928 = fieldWeight in 955, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               6.4264483 = idf(docFreq=187, maxDocs=42740)
               0.109375 = fieldNorm(doc=955)
         0.2846333 = weight(abstract_txt:services in 955) [ClassicSimilarity], result of:
           0.2846333 = score(doc=955,freq=3.0), product of:
             0.35903808 = queryWeight, product of:
               5.5634537 = boost
               4.184721 = idf(docFreq=1768, maxDocs=42740)
               0.015421603 = queryNorm
             0.79276633 = fieldWeight in 955, product of:
               1.7320508 = tf(freq=3.0), with freq of:
                 3.0 = termFreq=3.0
               4.184721 = idf(docFreq=1768, maxDocs=42740)
               0.109375 = fieldNorm(doc=955)
       0.16 = coord(4/25)