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bibrank_citation_searcher.py.wml
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Wed, Oct 9, 05:59
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text/x-python
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Fri, Oct 11, 05:59 (2 d)
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R3600 invenio-infoscience
bibrank_citation_searcher.py.wml
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## $Id$
## This file is part of the CERN Document Server Software (CDSware).
## Copyright (C) 2002 CERN.
##
## The CDSware is free software; you can redistribute it and/or
## modify it under the terms of the GNU General Public License as
## published by the Free Software Foundation; either version 2 of the
## License, or (at your option) any later version.
##
## The CDSware is distributed in the hope that it will be useful, but
## WITHOUT ANY WARRANTY; without even the implied warranty of
## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
## General Public License for more details.
##
## You should have received a copy of the GNU General Public License
## along with CDSware; if not, write to the Free Software Foundation, Inc.,
## 59 Temple Place, Suite 330, Boston, MA 02111-1307, USA.
<protect># -*- coding: utf-8 -*-</protect>
<protect>## $Id$</protect>
<protect>## DO NOT EDIT THIS FILE! IT WAS AUTOMATICALLY GENERATED FROM CDSware WML SOURCES.</protect>
from marshal import loads
from zlib import decompress
from dbquery import run_sql
def init_cited_by_dictionary():
"""return citation list dictionary from rnkCITATIONDATA
"""
query = "select citation_data from rnkCITATIONDATA"
compressed_citation_dic = run_sql(query)
citation_dic = None
if compressed_citation_dic and compressed_citation_dic[0]:
citation_dic = loads(decompress(compressed_citation_dic[0][0]))
return citation_dic
def init_reference_list_dictionary():
"""return reference list dictionary from rnkCITATIONDATA
"""
query = "select citation_data_reversed from rnkCITATIONDATA"
compressed_ref_dic = run_sql(query)
ref_dic = None
if compressed_ref_dic and compressed_ref_dic[0]:
ref_dic = loads(decompress(compressed_ref_dic[0][0]))
return ref_dic
cache_cited_by_dictionary = init_cited_by_dictionary()
cache_reference_list_dictionary = init_reference_list_dictionary()
### INTERFACE
def calculate_cited_by_list(record_id, sort_order="d"):
"""Return a tuple of ([recid,citation_weight],...) for all the
record in citing RECORD_ID. The resulting recids is sorted by
ascending/descending citation weights depending or SORT_ORDER.
"""
citation_list = []
result = []
# determine which record cite RECORD_ID:
if cache_cited_by_dictionary:
citation_list = cache_cited_by_dictionary.get(record_id, [])
# get their weights:
query = "select relevance_data from rnkMETHODDATA, rnkMETHOD WHERE rnkMETHOD.id=rnkMETHODDATA.id_rnkMETHOD and rnkMETHOD.name='cit'"
compressed_citation_weight_dic = run_sql(query)
if compressed_citation_weight_dic and compressed_citation_weight_dic[0]:
citation_dic = loads(decompress(compressed_citation_weight_dic[0][0]))
for id in citation_list:
tmp = [id, citation_dic[id]]
result.append(tmp)
# sort them:
if result:
if sort_order == "d":
result.sort(lambda x, y: cmp(y[1], x[1]))
else:
result.sort(lambda x, y: cmp(x[1], y[1]))
return result
def calculate_co_cited_with_list(record_id, sort_order="d"):
"""Return a tuple of ([recid,co-cited weight],...) for records
that are co-cited with RECORD_ID. The resulting recids is sorted by
ascending/descending citation weights depending or SORT_ORDER.
"""
result = []
result_intermediate = {}
citation_list = []
if cache_cited_by_dictionary:
citation_list = cache_cited_by_dictionary.get(record_id, [])
for cit_id in citation_list:
reference_list = []
if cache_reference_list_dictionary:
reference_list = cache_reference_list_dictionary.get(cit_id, [])
for ref_id in reference_list:
if not result_intermediate.has_key(ref_id):
result_intermediate[ref_id] = 1
else: result_intermediate[ref_id] += 1
for key, value in result_intermediate.iteritems():
if not (key==record_id):
result.append([key, value])
if result:
if sort_order == "d":
result.sort(lambda x, y: cmp(y[1], x[1]))
else:
result.sort(lambda x, y: cmp(x[1], y[1]))
return result
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