/[Semantic-Engine]/EPrints/search.cgi
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Annotation of /EPrints/search.cgi

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Revision 5 - (hide annotations)
Fri Jun 29 10:01:31 2007 UTC (16 years, 9 months ago) by dpavlin
File size: 3673 byte(s)
checkbox for expansion into slogovi
1 dpavlin 1 #!/usr/bin/perl -w
2    
3    
4     ######################################
5     #
6     # A simple search engine program
7     #
8     ######################################
9    
10    
11     use strict;
12     use CGI::Carp qw(fatalsToBrowser);
13     use Semantic::API;
14     use CGI;
15     use Data::Dump qw/dump/;
16     use EPrints;
17     use Cwd qw/abs_path/;
18    
19     my $abs_path = abs_path( $0 );
20     $abs_path =~ s!/[^/]*$!/!; #!fix-vim
21    
22     #############################################################
23     my $COLLECTION = 'EPrints';
24     my ( @TERMS, @RESULTS );
25 dpavlin 5 my ( $RESULTS_TO_DISPLAY, $TERMS_TO_DISPLAY ) = ( 20, 20 );
26 dpavlin 1 #############################################################
27    
28    
29     ###############################
30     # CGI Variables
31     ###############################
32     my $cgi = new CGI;
33     my $start = $cgi->param( 'start' ) || 0;
34     my $query = $cgi->param( 'query' ) || '';
35     my $similar = $cgi->param( 'similar' ) || '';
36 dpavlin 5 my $slogovi = $cgi->param( 'slogovi' );
37 dpavlin 1
38     my $charset='iso-8859-2';
39    
40 dpavlin 5 my $full_query = $query;
41     $full_query .= " " . join(" ", EPrints::slogovi( $query )) if ($slogovi);
42 dpavlin 1
43     ##############################
44     # Start the HTML output
45     ##############################
46     print "Content-type: text/html; charset=$charset\n\n";
47     print qq|<?xml version="1.0" encoding="$charset"?>
48     <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN"
49     "http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd">
50     <html xmlns="http://www.w3.org/1999/xhtml">
51     <head>
52     <meta http-equiv="content-type" content="text/html; charset=$charset" />
53     <title>Search Engine</title>
54     </head>
55     <body>
56     <form method="get" action="">
57     <p>
58     <input type="text" name="query" value="$query" />
59     <input type="submit" />
60 dpavlin 5 |, $cgi->checkbox( -name => 'slogovi' ), qq|
61 dpavlin 1 </p>\n|;
62    
63    
64    
65     ##########################
66     # Do the actual search
67     ##########################
68     if( $query || $similar ) {
69    
70     # Create collection-based objects
71     my $semantic = Semantic::API::Search->new( storage => 'sqlite',
72     database => "$abs_path/eprints.db",
73     collection => $COLLECTION );
74    
75     my ($results, $terms);
76     if ( $query ) {
77 dpavlin 4 ($results, $terms) = $semantic->semantic_search( $full_query );
78 dpavlin 1 } else {
79     ($results, $terms) = $semantic->find_similar( $similar );
80     }
81    
82     warn "results = ",dump( $results );
83     warn "terms = ",dump( $terms );
84    
85     ##################################
86     # TERM BASED CALCULATIONS
87     ##################################
88     my @sorted_terms = sort { $terms->{$b} <=> $terms->{$a} } keys %$terms;
89     my @top_terms = splice( @sorted_terms, $start, $TERMS_TO_DISPLAY );
90    
91 dpavlin 4 print "<p>Full query: $full_query</p>\n";
92 dpavlin 1 print "<p>Related Terms: ". ( join ", ", @top_terms ) ."</p>\n";
93     print "<hr />\n";
94    
95    
96     ##################################
97     # DOCUMENT BASED CALCULATIONS
98     ##################################
99    
100     print "<p>Result Count: ".(scalar keys %$results)."</p>\n";
101    
102     my @sorted_results = sort { $results->{$b} <=> $results->{$a} } keys %$results;
103     my @display_results = splice( @sorted_results, $start, $RESULTS_TO_DISPLAY );
104    
105     warn dump( @display_results );
106    
107     ##################################
108     # Access the storage engine to
109     # retrieve the title and text
110     ##################################
111     my $i = 1 + $start;
112     print $semantic->paginate( "?query=$query;similar=$similar", $start, scalar keys %$results, $RESULTS_TO_DISPLAY);
113     foreach my $id ( @display_results ){
114     EPrints->id( $id );
115     print "<p>$i. <b>", EPrints->lookup( 'title' ), "</b> <em>", sprintf("%.2f",$results->{$id}), "</em> <a href=\"?similar=$id\">similar</a></p>\n";
116     print "<p>";
117     # print $semantic->summarize($id);
118     print "<small>", EPrints->lookup('abstract'), "</small>";
119     print "</p>\n";
120     $i++;
121     }
122    
123     }
124    
125    
126     print "</body>\n</html>\n";

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