Document (#31969)

Author

Arms, C.R.

Title

Getting the picture : observations from the Library of Congress on providing online access to pictorial images

Source

Library trends. 48(1999) no.2, S.379-409

Year

1999

Abstract

Over the last few years, the Library of Congress (LC) has increasingly created digital reproductions of visual materials to enhance access to its resources. Digitization is now a mainstream activity in the Prints and Photographs Division (P & P) and the Geography and Maps Division (G & M). Both divisions work closely with the National Digital Library Program to make their incomparable resources accessible over the Internet to the general public through the American Memory Web site (http://memory.loc.gov/). They also use the digital images to serve their more traditional clientele in the reading rooms. Retrieval from a collection of digital images offers special opportunities to apply new technological advances, as illustrated elsewhere in this issue. However, retrieval often takes place in broader contexts. The Print and Photographs Division seeks to enhance access to its international pictorial holdings, whether digitized or not. Within American Memory, the focus is on retrieval by the nonspecialist from a body of materials related to the history and culture of the United States, materials heterogeneous in both original and digital form. A yet broader context is retrieval from the comprehensive collections of the entire Library of Congress. Beyond enabling retrieval, LC is concerned with facilitating use of the materials retrieved, consistent with any associated rights. This article describes selected aspects of LC's practical experience and current practices from digital capture through interactions with users, with an emphasis on the integration of access to pictorial images online with other services and activities at LC.

Form

Bilder

Similar documents (author)

1. Arms, C.R.: Using the national networks : BITNET and the Internet (1990) 6.10

   6.0972233 = sum of:
     6.0972233 = weight(author_txt:arms in 3670) [ClassicSimilarity], result of:
       6.0972233 = fieldWeight in 3670, product of:
         1.0 = tf(freq=1.0), with freq of:
           1.0 = termFreq=1.0
         9.755557 = idf(docFreq=6, maxDocs=44421)
         0.625 = fieldNorm(doc=3670)
   

2. Arms, C.R.: ¬A new information infrastructure (1990) 6.10

   6.0972233 = sum of:
     6.0972233 = weight(author_txt:arms in 3672) [ClassicSimilarity], result of:
       6.0972233 = fieldWeight in 3672, product of:
         1.0 = tf(freq=1.0), with freq of:
           1.0 = termFreq=1.0
         9.755557 = idf(docFreq=6, maxDocs=44421)
         0.625 = fieldNorm(doc=3672)
   

3. Arms, C.R.: Available and useful : OAI at the Library of Congress (2003) 6.10

   6.0972233 = sum of:
     6.0972233 = weight(author_txt:arms in 5773) [ClassicSimilarity], result of:
       6.0972233 = fieldWeight in 5773, product of:
         1.0 = tf(freq=1.0), with freq of:
           1.0 = termFreq=1.0
         9.755557 = idf(docFreq=6, maxDocs=44421)
         0.625 = fieldNorm(doc=5773)
   

4. Arms, W.Y.; Blanchi, C.; Overly, E.A.: ¬An architecture for information in digital libraries (1997) 3.66

   3.6583338 = sum of:
     3.6583338 = weight(author_txt:arms in 2260) [ClassicSimilarity], result of:
       3.6583338 = fieldWeight in 2260, product of:
         1.0 = tf(freq=1.0), with freq of:
           1.0 = termFreq=1.0
         9.755557 = idf(docFreq=6, maxDocs=44421)
         0.375 = fieldNorm(doc=2260)
   

5. Arms, W.Y.; Dushay, N.; Fulker, D.; Lagoze, C.: ¬A case study in metadata harvesting : the NSDL (2003) 3.05

   3.0486116 = sum of:
     3.0486116 = weight(author_txt:arms in 5780) [ClassicSimilarity], result of:
       3.0486116 = fieldWeight in 5780, product of:
         1.0 = tf(freq=1.0), with freq of:
           1.0 = termFreq=1.0
         9.755557 = idf(docFreq=6, maxDocs=44421)
         0.3125 = fieldNorm(doc=5780)
   

Similar documents (content)

1. Thorin, S.E.: ¬The National Digital Library : digitization of the Library of Congress (1995) 0.38

   0.37683603 = sum of:
     0.37683603 = product of:
       0.94209003 = sum of:
         0.0233267 = weight(abstract_txt:through in 3364) [ClassicSimilarity], result of:
           0.0233267 = score(doc=3364,freq=1.0), product of:
             0.07464889 = queryWeight, product of:
               3.9998152 = idf(docFreq=2211, maxDocs=44421)
               0.018663084 = queryNorm
             0.31248558 = fieldWeight in 3364, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               3.9998152 = idf(docFreq=2211, maxDocs=44421)
               0.078125 = fieldNorm(doc=3364)
         0.03884885 = weight(abstract_txt:resources in 3364) [ClassicSimilarity], result of:
           0.03884885 = score(doc=3364,freq=2.0), product of:
             0.08324598 = queryWeight, product of:
               1.0560147 = boost
               4.2238636 = idf(docFreq=1767, maxDocs=44421)
               0.018663084 = queryNorm
             0.4666754 = fieldWeight in 3364, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               4.2238636 = idf(docFreq=1767, maxDocs=44421)
               0.078125 = fieldNorm(doc=3364)
         0.1700728 = weight(abstract_txt:lc's in 3364) [ClassicSimilarity], result of:
           0.1700728 = score(doc=3364,freq=2.0), product of:
             0.17681715 = queryWeight, product of:
               1.0882672 = boost
               8.705735 = idf(docFreq=19, maxDocs=44421)
               0.018663084 = queryNorm
             0.9618569 = fieldWeight in 3364, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               8.705735 = idf(docFreq=19, maxDocs=44421)
               0.078125 = fieldNorm(doc=3364)
         0.10294891 = weight(abstract_txt:american in 3364) [ClassicSimilarity], result of:
           0.10294891 = score(doc=3364,freq=3.0), product of:
             0.1392607 = queryWeight, product of:
               1.3658488 = boost
               5.463143 = idf(docFreq=511, maxDocs=44421)
               0.018663084 = queryNorm
             0.73925316 = fieldWeight in 3364, product of:
               1.7320508 = tf(freq=3.0), with freq of:
                 3.0 = termFreq=3.0
               5.463143 = idf(docFreq=511, maxDocs=44421)
               0.078125 = fieldNorm(doc=3364)
         0.040948756 = weight(abstract_txt:library in 3364) [ClassicSimilarity], result of:
           0.040948756 = score(doc=3364,freq=3.0), product of:
             0.09489672 = queryWeight, product of:
               1.5945162 = boost
               3.188885 = idf(docFreq=4976, maxDocs=44421)
               0.018663084 = queryNorm
             0.43150866 = fieldWeight in 3364, product of:
               1.7320508 = tf(freq=3.0), with freq of:
                 3.0 = termFreq=3.0
               3.188885 = idf(docFreq=4976, maxDocs=44421)
               0.078125 = fieldNorm(doc=3364)
         0.14790948 = weight(abstract_txt:memory in 3364) [ClassicSimilarity], result of:
           0.14790948 = score(doc=3364,freq=2.0), product of:
             0.20297466 = queryWeight, product of:
               1.6489567 = boost
               6.595522 = idf(docFreq=164, maxDocs=44421)
               0.018663084 = queryNorm
             0.7287091 = fieldWeight in 3364, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               6.595522 = idf(docFreq=164, maxDocs=44421)
               0.078125 = fieldNorm(doc=3364)
         0.017008321 = weight(abstract_txt:with in 3364) [ClassicSimilarity], result of:
           0.017008321 = score(doc=3364,freq=1.0), product of:
             0.08721728 = queryWeight, product of:
               1.8721913 = boost
               2.4961398 = idf(docFreq=9949, maxDocs=44421)
               0.018663084 = queryNorm
             0.19501092 = fieldWeight in 3364, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               2.4961398 = idf(docFreq=9949, maxDocs=44421)
               0.078125 = fieldNorm(doc=3364)
         0.0862211 = weight(abstract_txt:congress in 3364) [ClassicSimilarity], result of:
           0.0862211 = score(doc=3364,freq=1.0), product of:
             0.20428066 = queryWeight, product of:
               2.026038 = boost
               5.4025183 = idf(docFreq=543, maxDocs=44421)
               0.018663084 = queryNorm
             0.42207175 = fieldWeight in 3364, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               5.4025183 = idf(docFreq=543, maxDocs=44421)
               0.078125 = fieldNorm(doc=3364)
         0.1166339 = weight(abstract_txt:images in 3364) [ClassicSimilarity], result of:
           0.1166339 = score(doc=3364,freq=1.0), product of:
             0.27500948 = queryWeight, product of:
               2.7144208 = boost
               5.428591 = idf(docFreq=529, maxDocs=44421)
               0.018663084 = queryNorm
             0.42410865 = fieldWeight in 3364, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               5.428591 = idf(docFreq=529, maxDocs=44421)
               0.078125 = fieldNorm(doc=3364)
         0.19817123 = weight(abstract_txt:digital in 3364) [ClassicSimilarity], result of:
           0.19817123 = score(doc=3364,freq=5.0), product of:
             0.2621392 = queryWeight, product of:
               3.2457492 = boost
               4.3274655 = idf(docFreq=1593, maxDocs=44421)
               0.018663084 = queryNorm
             0.7559771 = fieldWeight in 3364, product of:
               2.236068 = tf(freq=5.0), with freq of:
                 5.0 = termFreq=5.0
               4.3274655 = idf(docFreq=1593, maxDocs=44421)
               0.078125 = fieldNorm(doc=3364)
       0.4 = coord(10/25)
   

2. Arms, W.Y.; Blanchi, C.; Overly, E.A.: ¬An architecture for information in digital libraries (1997) 0.31

   0.3077112 = sum of:
     0.3077112 = product of:
       0.59175235 = sum of:
         0.01166335 = weight(abstract_txt:through in 2260) [ClassicSimilarity], result of:
           0.01166335 = score(doc=2260,freq=1.0), product of:
             0.07464889 = queryWeight, product of:
               3.9998152 = idf(docFreq=2211, maxDocs=44421)
               0.018663084 = queryNorm
             0.15624279 = fieldWeight in 2260, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               3.9998152 = idf(docFreq=2211, maxDocs=44421)
               0.0390625 = fieldNorm(doc=2260)
         0.013735143 = weight(abstract_txt:resources in 2260) [ClassicSimilarity], result of:
           0.013735143 = score(doc=2260,freq=1.0), product of:
             0.08324598 = queryWeight, product of:
               1.0560147 = boost
               4.2238636 = idf(docFreq=1767, maxDocs=44421)
               0.018663084 = queryNorm
             0.16499467 = fieldWeight in 2260, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               4.2238636 = idf(docFreq=1767, maxDocs=44421)
               0.0390625 = fieldNorm(doc=2260)
         0.013919767 = weight(abstract_txt:over in 2260) [ClassicSimilarity], result of:
           0.013919767 = score(doc=2260,freq=1.0), product of:
             0.0839903 = queryWeight, product of:
               1.0607252 = boost
               4.242705 = idf(docFreq=1734, maxDocs=44421)
               0.018663084 = queryNorm
             0.16573066 = fieldWeight in 2260, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               4.242705 = idf(docFreq=1734, maxDocs=44421)
               0.0390625 = fieldNorm(doc=2260)
         0.029718792 = weight(abstract_txt:american in 2260) [ClassicSimilarity], result of:
           0.029718792 = score(doc=2260,freq=1.0), product of:
             0.1392607 = queryWeight, product of:
               1.3658488 = boost
               5.463143 = idf(docFreq=511, maxDocs=44421)
               0.018663084 = queryNorm
             0.21340401 = fieldWeight in 2260, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               5.463143 = idf(docFreq=511, maxDocs=44421)
               0.0390625 = fieldNorm(doc=2260)
         0.03920545 = weight(abstract_txt:library in 2260) [ClassicSimilarity], result of:
           0.03920545 = score(doc=2260,freq=11.0), product of:
             0.09489672 = queryWeight, product of:
               1.5945162 = boost
               3.188885 = idf(docFreq=4976, maxDocs=44421)
               0.018663084 = queryNorm
             0.4131381 = fieldWeight in 2260, product of:
               3.3166249 = tf(freq=11.0), with freq of:
                 11.0 = termFreq=11.0
               3.188885 = idf(docFreq=4976, maxDocs=44421)
               0.0390625 = fieldNorm(doc=2260)
         0.052293897 = weight(abstract_txt:memory in 2260) [ClassicSimilarity], result of:
           0.052293897 = score(doc=2260,freq=1.0), product of:
             0.20297466 = queryWeight, product of:
               1.6489567 = boost
               6.595522 = idf(docFreq=164, maxDocs=44421)
               0.018663084 = queryNorm
             0.25763756 = fieldWeight in 2260, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               6.595522 = idf(docFreq=164, maxDocs=44421)
               0.0390625 = fieldNorm(doc=2260)
         0.009573859 = weight(abstract_txt:from in 2260) [ClassicSimilarity], result of:
           0.009573859 = score(doc=2260,freq=1.0), product of:
             0.08882035 = queryWeight, product of:
               1.724704 = boost
               2.759399 = idf(docFreq=7646, maxDocs=44421)
               0.018663084 = queryNorm
             0.107789025 = fieldWeight in 2260, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               2.759399 = idf(docFreq=7646, maxDocs=44421)
               0.0390625 = fieldNorm(doc=2260)
         0.017741842 = weight(abstract_txt:access in 2260) [ClassicSimilarity], result of:
           0.017741842 = score(doc=2260,freq=1.0), product of:
             0.124399014 = queryWeight, product of:
               1.8256259 = boost
               3.6510832 = idf(docFreq=3134, maxDocs=44421)
               0.018663084 = queryNorm
             0.14262044 = fieldWeight in 2260, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               3.6510832 = idf(docFreq=3134, maxDocs=44421)
               0.0390625 = fieldNorm(doc=2260)
         0.07147222 = weight(abstract_txt:photographs in 2260) [ClassicSimilarity], result of:
           0.07147222 = score(doc=2260,freq=1.0), product of:
             0.24997658 = queryWeight, product of:
               1.8299447 = boost
               7.319441 = idf(docFreq=79, maxDocs=44421)
               0.018663084 = queryNorm
             0.28591567 = fieldWeight in 2260, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               7.319441 = idf(docFreq=79, maxDocs=44421)
               0.0390625 = fieldNorm(doc=2260)
         0.008504161 = weight(abstract_txt:with in 2260) [ClassicSimilarity], result of:
           0.008504161 = score(doc=2260,freq=1.0), product of:
             0.08721728 = queryWeight, product of:
               1.8721913 = boost
               2.4961398 = idf(docFreq=9949, maxDocs=44421)
               0.018663084 = queryNorm
             0.09750546 = fieldWeight in 2260, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               2.4961398 = idf(docFreq=9949, maxDocs=44421)
               0.0390625 = fieldNorm(doc=2260)
         0.06096752 = weight(abstract_txt:congress in 2260) [ClassicSimilarity], result of:
           0.06096752 = score(doc=2260,freq=2.0), product of:
             0.20428066 = queryWeight, product of:
               2.026038 = boost
               5.4025183 = idf(docFreq=543, maxDocs=44421)
               0.018663084 = queryNorm
             0.29844978 = fieldWeight in 2260, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               5.4025183 = idf(docFreq=543, maxDocs=44421)
               0.0390625 = fieldNorm(doc=2260)
         0.074954644 = weight(abstract_txt:materials in 2260) [ClassicSimilarity], result of:
           0.074954644 = score(doc=2260,freq=3.0), product of:
             0.2254117 = queryWeight, product of:
               2.4574888 = boost
               4.9147506 = idf(docFreq=885, maxDocs=44421)
               0.018663084 = queryNorm
             0.33252332 = fieldWeight in 2260, product of:
               1.7320508 = tf(freq=3.0), with freq of:
                 3.0 = termFreq=3.0
               4.9147506 = idf(docFreq=885, maxDocs=44421)
               0.0390625 = fieldNorm(doc=2260)
         0.18800174 = weight(abstract_txt:digital in 2260) [ClassicSimilarity], result of:
           0.18800174 = score(doc=2260,freq=18.0), product of:
             0.2621392 = queryWeight, product of:
               3.2457492 = boost
               4.3274655 = idf(docFreq=1593, maxDocs=44421)
               0.018663084 = queryNorm
             0.7171828 = fieldWeight in 2260, product of:
               4.2426405 = tf(freq=18.0), with freq of:
                 18.0 = termFreq=18.0
               4.3274655 = idf(docFreq=1593, maxDocs=44421)
               0.0390625 = fieldNorm(doc=2260)
       0.52 = coord(13/25)
   

3. Valauskas, E.J.: Digital images over the Internet : some reborn at the Library of Congress (1994) 0.30

   0.30417976 = sum of:
     0.30417976 = product of:
       0.95056176 = sum of:
         0.05349523 = weight(abstract_txt:library in 7820) [ClassicSimilarity], result of:
           0.05349523 = score(doc=7820,freq=2.0), product of:
             0.09489672 = queryWeight, product of:
               1.5945162 = boost
               3.188885 = idf(docFreq=4976, maxDocs=44421)
               0.018663084 = queryNorm
             0.5637205 = fieldWeight in 7820, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               3.188885 = idf(docFreq=4976, maxDocs=44421)
               0.125 = fieldNorm(doc=7820)
         0.030636348 = weight(abstract_txt:from in 7820) [ClassicSimilarity], result of:
           0.030636348 = score(doc=7820,freq=1.0), product of:
             0.08882035 = queryWeight, product of:
               1.724704 = boost
               2.759399 = idf(docFreq=7646, maxDocs=44421)
               0.018663084 = queryNorm
             0.34492487 = fieldWeight in 7820, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               2.759399 = idf(docFreq=7646, maxDocs=44421)
               0.125 = fieldNorm(doc=7820)
         0.098335266 = weight(abstract_txt:access in 7820) [ClassicSimilarity], result of:
           0.098335266 = score(doc=7820,freq=3.0), product of:
             0.124399014 = queryWeight, product of:
               1.8256259 = boost
               3.6510832 = idf(docFreq=3134, maxDocs=44421)
               0.018663084 = queryNorm
             0.7904827 = fieldWeight in 7820, product of:
               1.7320508 = tf(freq=3.0), with freq of:
                 3.0 = termFreq=3.0
               3.6510832 = idf(docFreq=3134, maxDocs=44421)
               0.125 = fieldNorm(doc=7820)
         0.027213315 = weight(abstract_txt:with in 7820) [ClassicSimilarity], result of:
           0.027213315 = score(doc=7820,freq=1.0), product of:
             0.08721728 = queryWeight, product of:
               1.8721913 = boost
               2.4961398 = idf(docFreq=9949, maxDocs=44421)
               0.018663084 = queryNorm
             0.31201747 = fieldWeight in 7820, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               2.4961398 = idf(docFreq=9949, maxDocs=44421)
               0.125 = fieldNorm(doc=7820)
         0.13795374 = weight(abstract_txt:congress in 7820) [ClassicSimilarity], result of:
           0.13795374 = score(doc=7820,freq=1.0), product of:
             0.20428066 = queryWeight, product of:
               2.026038 = boost
               5.4025183 = idf(docFreq=543, maxDocs=44421)
               0.018663084 = queryNorm
             0.6753148 = fieldWeight in 7820, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               5.4025183 = idf(docFreq=543, maxDocs=44421)
               0.125 = fieldNorm(doc=7820)
         0.13848029 = weight(abstract_txt:materials in 7820) [ClassicSimilarity], result of:
           0.13848029 = score(doc=7820,freq=1.0), product of:
             0.2254117 = queryWeight, product of:
               2.4574888 = boost
               4.9147506 = idf(docFreq=885, maxDocs=44421)
               0.018663084 = queryNorm
             0.6143438 = fieldWeight in 7820, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               4.9147506 = idf(docFreq=885, maxDocs=44421)
               0.125 = fieldNorm(doc=7820)
         0.26391238 = weight(abstract_txt:images in 7820) [ClassicSimilarity], result of:
           0.26391238 = score(doc=7820,freq=2.0), product of:
             0.27500948 = queryWeight, product of:
               2.7144208 = boost
               5.428591 = idf(docFreq=529, maxDocs=44421)
               0.018663084 = queryNorm
             0.9596483 = fieldWeight in 7820, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               5.428591 = idf(docFreq=529, maxDocs=44421)
               0.125 = fieldNorm(doc=7820)
         0.2005352 = weight(abstract_txt:digital in 7820) [ClassicSimilarity], result of:
           0.2005352 = score(doc=7820,freq=2.0), product of:
             0.2621392 = queryWeight, product of:
               3.2457492 = boost
               4.3274655 = idf(docFreq=1593, maxDocs=44421)
               0.018663084 = queryNorm
             0.76499504 = fieldWeight in 7820, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               4.3274655 = idf(docFreq=1593, maxDocs=44421)
               0.125 = fieldNorm(doc=7820)
       0.32 = coord(8/25)
   

4. Alexander, A.; Meehleib, T.: ¬The Thesaurus for Graphic Materials : its history, use and future (2001) 0.26

   0.2606639 = sum of:
     0.2606639 = product of:
       0.93094254 = sum of:
         0.1354333 = weight(abstract_txt:prints in 413) [ClassicSimilarity], result of:
           0.1354333 = score(doc=413,freq=1.0), product of:
             0.16948865 = queryWeight, product of:
               1.065476 = boost
               8.523414 = idf(docFreq=23, maxDocs=44421)
               0.018663084 = queryNorm
             0.79907 = fieldWeight in 413, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               8.523414 = idf(docFreq=23, maxDocs=44421)
               0.09375 = fieldNorm(doc=413)
         0.02837013 = weight(abstract_txt:library in 413) [ClassicSimilarity], result of:
           0.02837013 = score(doc=413,freq=1.0), product of:
             0.09489672 = queryWeight, product of:
               1.5945162 = boost
               3.188885 = idf(docFreq=4976, maxDocs=44421)
               0.018663084 = queryNorm
             0.29895797 = fieldWeight in 413, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               3.188885 = idf(docFreq=4976, maxDocs=44421)
               0.09375 = fieldNorm(doc=413)
         0.17153332 = weight(abstract_txt:photographs in 413) [ClassicSimilarity], result of:
           0.17153332 = score(doc=413,freq=1.0), product of:
             0.24997658 = queryWeight, product of:
               1.8299447 = boost
               7.319441 = idf(docFreq=79, maxDocs=44421)
               0.018663084 = queryNorm
             0.6861976 = fieldWeight in 413, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               7.319441 = idf(docFreq=79, maxDocs=44421)
               0.09375 = fieldNorm(doc=413)
         0.103465304 = weight(abstract_txt:congress in 413) [ClassicSimilarity], result of:
           0.103465304 = score(doc=413,freq=1.0), product of:
             0.20428066 = queryWeight, product of:
               2.026038 = boost
               5.4025183 = idf(docFreq=543, maxDocs=44421)
               0.018663084 = queryNorm
             0.50648606 = fieldWeight in 413, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               5.4025183 = idf(docFreq=543, maxDocs=44421)
               0.09375 = fieldNorm(doc=413)
         0.14688052 = weight(abstract_txt:materials in 413) [ClassicSimilarity], result of:
           0.14688052 = score(doc=413,freq=2.0), product of:
             0.2254117 = queryWeight, product of:
               2.4574888 = boost
               4.9147506 = idf(docFreq=885, maxDocs=44421)
               0.018663084 = queryNorm
             0.65161 = fieldWeight in 413, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               4.9147506 = idf(docFreq=885, maxDocs=44421)
               0.09375 = fieldNorm(doc=413)
         0.2052993 = weight(abstract_txt:division in 413) [ClassicSimilarity], result of:
           0.2052993 = score(doc=413,freq=1.0), product of:
             0.3225688 = queryWeight, product of:
               2.5459223 = boost
               6.7888126 = idf(docFreq=135, maxDocs=44421)
               0.018663084 = queryNorm
             0.6364512 = fieldWeight in 413, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               6.7888126 = idf(docFreq=135, maxDocs=44421)
               0.09375 = fieldNorm(doc=413)
         0.13996068 = weight(abstract_txt:images in 413) [ClassicSimilarity], result of:
           0.13996068 = score(doc=413,freq=1.0), product of:
             0.27500948 = queryWeight, product of:
               2.7144208 = boost
               5.428591 = idf(docFreq=529, maxDocs=44421)
               0.018663084 = queryNorm
             0.5089304 = fieldWeight in 413, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               5.428591 = idf(docFreq=529, maxDocs=44421)
               0.09375 = fieldNorm(doc=413)
       0.28 = coord(7/25)
   

5. Library of Congress adds to American Memory Web site (1998) 0.21

   0.20519878 = sum of:
     0.20519878 = product of:
       0.73285276 = sum of:
         0.11887517 = weight(abstract_txt:american in 5736) [ClassicSimilarity], result of:
           0.11887517 = score(doc=5736,freq=4.0), product of:
             0.1392607 = queryWeight, product of:
               1.3658488 = boost
               5.463143 = idf(docFreq=511, maxDocs=44421)
               0.018663084 = queryNorm
             0.85361606 = fieldWeight in 5736, product of:
               2.0 = tf(freq=4.0), with freq of:
                 4.0 = termFreq=4.0
               5.463143 = idf(docFreq=511, maxDocs=44421)
               0.078125 = fieldNorm(doc=5736)
         0.052864615 = weight(abstract_txt:library in 5736) [ClassicSimilarity], result of:
           0.052864615 = score(doc=5736,freq=5.0), product of:
             0.09489672 = queryWeight, product of:
               1.5945162 = boost
               3.188885 = idf(docFreq=4976, maxDocs=44421)
               0.018663084 = queryNorm
             0.55707526 = fieldWeight in 5736, product of:
               2.236068 = tf(freq=5.0), with freq of:
                 5.0 = termFreq=5.0
               3.188885 = idf(docFreq=4976, maxDocs=44421)
               0.078125 = fieldNorm(doc=5736)
         0.10458779 = weight(abstract_txt:memory in 5736) [ClassicSimilarity], result of:
           0.10458779 = score(doc=5736,freq=1.0), product of:
             0.20297466 = queryWeight, product of:
               1.6489567 = boost
               6.595522 = idf(docFreq=164, maxDocs=44421)
               0.018663084 = queryNorm
             0.5152751 = fieldWeight in 5736, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               6.595522 = idf(docFreq=164, maxDocs=44421)
               0.078125 = fieldNorm(doc=5736)
         0.0428156 = weight(abstract_txt:from in 5736) [ClassicSimilarity], result of:
           0.0428156 = score(doc=5736,freq=5.0), product of:
             0.08882035 = queryWeight, product of:
               1.724704 = boost
               2.759399 = idf(docFreq=7646, maxDocs=44421)
               0.018663084 = queryNorm
             0.48204717 = fieldWeight in 5736, product of:
               2.236068 = tf(freq=5.0), with freq of:
                 5.0 = termFreq=5.0
               2.759399 = idf(docFreq=7646, maxDocs=44421)
               0.078125 = fieldNorm(doc=5736)
         0.20215397 = weight(abstract_txt:photographs in 5736) [ClassicSimilarity], result of:
           0.20215397 = score(doc=5736,freq=2.0), product of:
             0.24997658 = queryWeight, product of:
               1.8299447 = boost
               7.319441 = idf(docFreq=79, maxDocs=44421)
               0.018663084 = queryNorm
             0.8086916 = fieldWeight in 5736, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               7.319441 = idf(docFreq=79, maxDocs=44421)
               0.078125 = fieldNorm(doc=5736)
         0.0862211 = weight(abstract_txt:congress in 5736) [ClassicSimilarity], result of:
           0.0862211 = score(doc=5736,freq=1.0), product of:
             0.20428066 = queryWeight, product of:
               2.026038 = boost
               5.4025183 = idf(docFreq=543, maxDocs=44421)
               0.018663084 = queryNorm
             0.42207175 = fieldWeight in 5736, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               5.4025183 = idf(docFreq=543, maxDocs=44421)
               0.078125 = fieldNorm(doc=5736)
         0.1253345 = weight(abstract_txt:digital in 5736) [ClassicSimilarity], result of:
           0.1253345 = score(doc=5736,freq=2.0), product of:
             0.2621392 = queryWeight, product of:
               3.2457492 = boost
               4.3274655 = idf(docFreq=1593, maxDocs=44421)
               0.018663084 = queryNorm
             0.4781219 = fieldWeight in 5736, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               4.3274655 = idf(docFreq=1593, maxDocs=44421)
               0.078125 = fieldNorm(doc=5736)
       0.28 = coord(7/25)