diff --git a/aider/coders/base_coder.py b/aider/coders/base_coder.py
index 477446eb9..1c94beff6 100755
--- a/aider/coders/base_coder.py
+++ b/aider/coders/base_coder.py
@@ -8,6 +8,7 @@ import sys
 import threading
 import time
 import traceback
+from collections import defaultdict
 from json.decoder import JSONDecodeError
 from pathlib import Path
 
@@ -472,6 +473,21 @@ class Coder:
         words = set(re.split(r"\W+", text))
         return words
 
+    def get_ident_filename_matches(self, idents):
+        all_fnames = defaultdict(set)
+        for fname in self.get_all_relative_files():
+            base = Path(fname).with_suffix("").name.lower()
+            if len(base) >= 5:
+                all_fnames[base].add(fname)
+
+        matches = set()
+        for ident in idents:
+            if len(ident) < 5:
+                continue
+            matches.update(all_fnames[ident.lower()])
+
+        return matches
+
     def get_repo_map(self):
         if not self.repo_map:
             return
@@ -480,6 +496,8 @@ class Coder:
         mentioned_fnames = self.get_file_mentions(cur_msg_text)
         mentioned_idents = self.get_ident_mentions(cur_msg_text)
 
+        mentioned_fnames.update(self.get_ident_filename_matches(mentioned_idents))
+
         other_files = set(self.get_all_abs_files()) - set(self.abs_fnames)
         repo_content = self.repo_map.get_repo_map(
             self.abs_fnames,
diff --git a/aider/repomap.py b/aider/repomap.py
index 38a30cd35..20b675549 100644
--- a/aider/repomap.py
+++ b/aider/repomap.py
@@ -1,4 +1,5 @@
 import colorsys
+import math
 import os
 import random
 import sys
@@ -242,7 +243,7 @@ class RepoMap:
 
         # Default personalization for unspecified files is 1/num_nodes
         # https://networkx.org/documentation/stable/_modules/networkx/algorithms/link_analysis/pagerank_alg.html#pagerank
-        personalize = 10 / len(fnames)
+        personalize = 100 / len(fnames)
 
         if self.cache_missing:
             fnames = tqdm(fnames)
@@ -268,7 +269,7 @@ class RepoMap:
                 personalization[rel_fname] = personalize
                 chat_rel_fnames.add(rel_fname)
 
-            if fname in mentioned_fnames:
+            if rel_fname in mentioned_fnames:
                 personalization[rel_fname] = personalize
 
             tags = list(self.get_tags(fname, rel_fname))
@@ -300,12 +301,20 @@ class RepoMap:
             definers = defines[ident]
             if ident in mentioned_idents:
                 mul = 10
+            elif ident.startswith("_"):
+                mul = 0.1
             else:
                 mul = 1
+
             for referencer, num_refs in Counter(references[ident]).items():
                 for definer in definers:
+                    # dump(referencer, definer, num_refs, mul)
                     # if referencer == definer:
                     #    continue
+
+                    # scale down so high freq (low value) mentions don't dominate
+                    num_refs = math.sqrt(num_refs)
+
                     G.add_edge(referencer, definer, weight=mul * num_refs, ident=ident)
 
         if not references: