Re-estabslished rank-1. Gets same order of results, but slightly different

[idzebra-moved-to-github.git] / index / zvrank.c

diff --git a/index/zvrank.c b/index/zvrank.c
index 4c1c4b7..ecebce3 100644 (file)
--- a/index/zvrank.c
+++ b/index/zvrank.c
@@ -1,4 +1,4 @@
-/* $Id: zvrank.c,v 1.7 2004-06-13 18:44:57 adam Exp $
+/* $Id: zvrank.c,v 1.11 2004-10-26 15:32:11 heikki Exp $
    Copyright (C) 1995,1996,1997,1998,1999,2000,2001,2002,2003
    Index Data Aps
 
@@ -40,6 +40,8 @@ fernuni-hagen.de>
 ** "ntc-atn", "atc-atn", etc.
 */
 
+#if SKIPTHIS   /* FIXME - Disabled while changing the interface to ranking */
+
 #include <math.h>  /* for log */
 
 #include <stdio.h>
@@ -61,8 +63,7 @@ static double blog(double x) {
 
 /* structures */
 
-struct rank_class_info { /* now we need this */
-    int dummy;
+struct rank_class_info {
     char rscheme[8];    /* name of weighting scheme */
 };
 
@@ -76,6 +77,7 @@ struct rs_info {      /* for result set */
     char rscheme[8];    /* name of weighting scheme */
     /**/
     int veclen;
+    NMEM nmem;
     void (*d_tf_fct)(void *, void *);   /* doc term frequency function */
     void (*d_idf_fct)(void *, void *);  /* doc idf function */
     void (*d_norm_fct)(void *, void *); /* doc normalization function */
@@ -131,7 +133,7 @@ struct ts_info {       /* term info */
     char *name;
     int *id;
     /**/
-    int gocc;
+    zint gocc;
     int locc;
     double tf;
     double idf;
@@ -267,7 +269,7 @@ static void idf_none(void *rsi, void *dsi) {
 static void idf_tfidf(void *rsi, void *dsi) {
     RS rs=(RS)rsi;
     DS ds=(DS)dsi;
-    int num_docs, gocc;
+    zint num_docs, gocc;
     int i, veclen;
     double idf;
     /* normal tfidf weight */
@@ -278,7 +280,7 @@ static void idf_tfidf(void *rsi, void *dsi) {
         if (gocc==0) 
             idf=0.0; 
         else
-            idf=blog(num_docs/gocc);
+            idf=blog((double) (num_docs/gocc));
         ds->terms[i].idf=idf;
     }
     return;
@@ -287,7 +289,7 @@ static void idf_tfidf(void *rsi, void *dsi) {
 static void idf_prob(void *rsi, void *dsi) {
     RS rs=(RS)rsi;
     DS ds=(DS)dsi;
-    int num_docs, gocc;
+    zint num_docs, gocc;
     int i, veclen;
     double idf;
     /* probabilistic formulation */
@@ -298,7 +300,7 @@ static void idf_prob(void *rsi, void *dsi) {
         if (gocc==0)
             idf=0.0; 
         else
-            idf=blog((num_docs-gocc)/gocc);
+            idf=blog((double) ((num_docs-gocc)/gocc));
         ds->terms[i].idf=idf;
     }
     return;
@@ -326,7 +328,7 @@ static void idf_freq(void *rsi, void *dsi) {
 static void idf_squared(void *rsi, void *dsi) {
     RS rs=(RS)rsi;
     DS ds=(DS)dsi;
-    int num_docs, gocc;
+    zint num_docs, gocc;
     int i, veclen;
     double idf;
     /* idf ^ 2 */
@@ -684,16 +686,21 @@ static void zv_destroy (struct zebra_register *reg, void *class_handle) {
  *  each result set. The returned handle is a "set handle" and
  *  will be used in each of the handlers below.
  */
-static void *zv_begin(struct zebra_register *reg, void *class_handle, RSET rset)
+static void *zv_begin(struct zebra_register *reg, void *class_handle, 
+                      RSET rset, NMEM nmem)
 {
     struct rs_info *rs=(struct rs_info *)xmalloc(sizeof(*rs));
     struct rank_class_info *ci=(struct rank_class_info *)class_handle;
     int i;
-    int veclen, gocc;
+    int veclen;
+    zint gocc;
     /**/
     yaz_log(LOG_DEBUG, "zv_begin");
-    veclen=rset->no_rset_terms; /* smaller vector here */
+    veclen= 0 ; /* rset->no_rset_terms;*/  /* smaller vector here */
+    /* FIXME - Now that we don't have term lists in rsets, what do */
+    /* we do here ??? */
     zv_init(rs, ci->rscheme);
+    rs->nmem=nmem;
     rs->veclen=veclen;
     prn_rs(rs);
   
@@ -711,7 +718,7 @@ static void *zv_begin(struct zebra_register *reg, void *class_handle, RSET rset)
     /* yaz_log(LOG_DEBUG, "zv_begin_init"); */
     for (i = 0; i < rs->veclen; i++)
     {
-        gocc=rset->rset_terms[i]->nn;
+        gocc= 0; /* rset->rset_terms[i]->nn; */ /* FIXME ??? */
         /* yaz_log(LOG_DEBUG, "zv_begin_init i=%d gocc=%d", i, gocc); */
         rs->qdoc->terms[i].gocc=gocc;
         rs->qdoc->terms[i].locc=1;  /* assume query has no duplicate terms */
@@ -757,7 +764,7 @@ static void zv_add (void *rsi, int seqno, int i) {
  *  score should be between 0 and 1000. If score cannot be obtained
  *  -1 should be returned.
  */
-static int zv_calc (void *rsi, int sysno)
+static int zv_calc (void *rsi, zint sysno)
 {
     int i, veclen; 
     int score=0;
@@ -775,11 +782,11 @@ static int zv_calc (void *rsi, int sysno)
         (*rs->d_norm_fct)(rs, rs->rdoc);
         dscore=rs->sim_fct(rs->qdoc, rs->rdoc);
     }
-    score = dscore * 1000;
-    yaz_log (LOG_LOG, "sysno=%d score=%d", sysno, score);
+    score = (int) dscore * 1000;
+    yaz_log (LOG_LOG, "sysno=" ZINT_FORMAT " score=%d", sysno, score);
     if (score > 1000) /* should not happen */
         score = 1000;
-    return score;
+    return (int) score;
 }
 
 /*
@@ -812,4 +819,5 @@ static struct rank_control rank_control_vsm = {
  
 struct rank_control *rankzv_class = &rank_control_vsm;
 
+#endif /* SKIPTHIS */
 /* EOF */