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Rank-weight may be controlled via query.
[idzebra-moved-to-github.git]
/
index
/
rank1.c
diff --git
a/index/rank1.c
b/index/rank1.c
index
d947684
..
29fcb58
100644
(file)
--- a/
index/rank1.c
+++ b/
index/rank1.c
@@
-4,7
+4,10
@@
* Sebastian Hammer, Adam Dickmeiss
*
* $Log: rank1.c,v $
* Sebastian Hammer, Adam Dickmeiss
*
* $Log: rank1.c,v $
- * Revision 1.6 2000-03-15 15:00:30 adam
+ * Revision 1.7 2001-11-14 22:06:27 adam
+ * Rank-weight may be controlled via query.
+ *
+ * Revision 1.6 2000/03/15 15:00:30 adam
* First work on threaded version.
*
* Revision 1.5 1999/05/26 07:49:13 adam
* First work on threaded version.
*
* Revision 1.5 1999/05/26 07:49:13 adam
@@
-44,6
+47,7
@@
struct rank_term_info {
int global_occur;
int global_inv;
int rank_flag;
int global_occur;
int global_inv;
int rank_flag;
+ int rank_weight;
};
struct rank_set_info {
};
struct rank_set_info {
@@
-106,9
+110,12
@@
static void *begin (ZebraHandle zh, void *class_handle, RSET rset)
for (i = 0; i < si->no_entries; i++)
{
int g = rset->rset_terms[i]->nn;
for (i = 0; i < si->no_entries; i++)
{
int g = rset->rset_terms[i]->nn;
- if (!strcmp (rset->rset_terms[i]->flags, "rank"))
+ if (!strncmp (rset->rset_terms[i]->flags, "rank,", 5))
{
{
+ yaz_log (LOG_LOG, "%s", rset->rset_terms[i]->flags);
si->entries[i].rank_flag = 1;
si->entries[i].rank_flag = 1;
+ si->entries[i].rank_weight = atoi (rset->rset_terms[i]->flags+5);
+ yaz_log (LOG_LOG, "i=%d weight=%d", i, si->entries[i].rank_weight);
(si->no_rank_entries)++;
}
else
(si->no_rank_entries)++;
}
else
@@
-163,10
+170,11
@@
static int calc (void *set_handle, int sysno)
return -1;
for (i = 0; i < si->no_entries; i++)
if (si->entries[i].rank_flag && (lo = si->entries[i].local_occur))
return -1;
for (i = 0; i < si->no_entries; i++)
if (si->entries[i].rank_flag && (lo = si->entries[i].local_occur))
- score += (8+log2_int (lo)) * si->entries[i].global_inv;
- score *= 34;
+ score += (8+log2_int (lo)) * si->entries[i].global_inv *
+ si->entries[i].rank_weight;
divisor = si->no_rank_entries * (8+log2_int (si->last_pos/si->no_entries));
score = score / divisor;
divisor = si->no_rank_entries * (8+log2_int (si->last_pos/si->no_entries));
score = score / divisor;
+ yaz_log (LOG_LOG, "score=%d", score);
if (score > 1000)
score = 1000;
for (i = 0; i < si->no_entries; i++)
if (score > 1000)
score = 1000;
for (i = 0; i < si->no_entries; i++)