last

chroma_db/9ad1879a-6f5a-4003-a25f-df9f5ed8a1e8/length.bin

@@ -0,0 +1 @@
+invalid type: string "vention\n \nis\n \nnot\n \nused\n \nin\n \nevery\n \ncase\n \nbecause\n \nsometimes\n \nthe\n \nargument\n \nname\n \nand\n \nthe\n \nvariable\n \nname\n \nare\n \ndifferent.\n \nFor\n \nexample:\n \ntext\n \ncontext:\n \nshortUrlBase\n \nHere,\n \n`context`\n \nis\n \nthe\n \nargument\n \nname\n \nand\n \n`shortUrlBase`\n \nis\n \nthe\n \nvariable\n \nbeing\n \npassed\n \nto

lab3_hit_at_k.py

@@ -1,86 +1,53 @@
-
 from pathlib import Path
 from pypdf import PdfReader
 import chromadb
 from chromadb.utils import embedding_functions
 
 # ==========================================
-# 1. MEMBACA DOKUMEN PDF
+# FUNGSI BANTU
 # ==========================================
 
 def baca_pdf(path):
     reader = PdfReader(path)
     return "\n".join((p.extract_text() or "") for p in reader.pages)
 
-
-# ==========================================
-# 2. MEMBAGI DOKUMEN MENJADI CHUNK
-# ==========================================
-
 def potong(teks, ukuran=800, tumpang=100):
-    hasil = []
+    hasil, mulai = [], 0
-    mulai = 0
-
     while mulai < len(teks):
         hasil.append(teks[mulai:mulai + ukuran])
         mulai += ukuran - tumpang
-
     return [h for h in hasil if h.strip()]
 
-
 # ==========================================
-# 3. PENGATURAN EMBEDDING DAN DATABASE
+# SETUP EMBEDDING & CLIENT
 # ==========================================
 
 emb = embedding_functions.SentenceTransformerEmbeddingFunction(
-    model_name="paraphrase-multilingual-MiniLM-L12-v2"
+    model_name="paraphrase-multilingual-MiniLM-L12-v2")
-)
 
 client = chromadb.PersistentClient(path="./chroma_db")
 
-
-# ==========================================
-# 4. MEMBUAT KOLEKSI
-# ==========================================
-
 def buat_koleksi(nama, ukuran, tumpang):
-
     try:
         client.delete_collection(nama)
     except Exception:
         pass
-
     kol = client.get_or_create_collection(
-        name=nama,
+        name=nama, embedding_function=emb,
-        embedding_function=emb,
+        metadata={"hnsw:space": "cosine"})
-        metadata={"hnsw:space": "cosine"}
-    )
-
     for pdf in Path("dokumen").glob("*.pdf"):
-
+        chunks = potong(baca_pdf(pdf), ukuran, tumpang)
-        teks = baca_pdf(pdf)
-        chunks = potong(teks, ukuran, tumpang)
-
-        if not chunks:
-            continue
-
         kol.upsert(
-            ids=[
+            ids=[f"{nama}-{pdf.stem}-{i}" for i in range(len(chunks))],
-                f"{nama}-{pdf.stem}-{i}"
-                for i in range(len(chunks))
-            ],
             documents=chunks,
-            metadatas=[
+            metadatas=[{"sumber": pdf.name, "chunk": i} for i in range(len(chunks))],
-                {"sumber": pdf.name, "chunk": i}
-                for i in range(len(chunks))
-            ]
         )
-
+        print(f"  {nama}: {pdf.name} -> {len(chunks)} chunk")
     return kol
 
-
 # ==========================================
-# 5. 15 PERTANYAAN DAN KATA KUNCI
+# 15 PERTANYAAN + KATA KUNCI
+# (disesuaikan dengan isi PDF probabilitas)
 # ==========================================
 
 UJI = [
@@ -101,124 +68,42 @@ UJI = [
     ("What is a random variable?",                             "random variable"),
 ]
 
-
-# ==========================================
-# 6. FUNGSI HIT@K
-# ==========================================
-
 def hit_at_k(koleksi, uji, k):
-
     benar = 0
-    jumlah = min(k, koleksi.count())
-
-    if jumlah == 0:
-        return 0
-
     for pertanyaan, kunci in uji:
-
+        docs = koleksi.query(query_texts=[pertanyaan], n_results=k)["documents"][0]
-        docs = koleksi.query(
-            query_texts=[pertanyaan],
-            n_results=jumlah
-        )["documents"][0]
-
         if any(kunci.lower() in d.lower() for d in docs):
             benar += 1
-
     return benar / len(uji)
 
-
 # ==========================================
-# 7. MEMBUAT DUA KOLEKSI BERBEDA
+# JALANKAN: BUAT 2 KOLEKSI
 # ==========================================
 
+print("=== MEMBUAT KOLEKSI ===")
 kol_500  = buat_koleksi("chunk_500",  500,  75)
 kol_1500 = buat_koleksi("chunk_1500", 1500, 225)
 
+print("\n=== CEK ISI KOLEKSI ===")
+print(f"  chunk_500  : {kol_500.count()} dokumen")
+print(f"  chunk_1500 : {kol_1500.count()} dokumen")
 
 # ==========================================
-# 8. MENAMPILKAN TABEL HASIL HIT@K
+# HITUNG HIT@K
 # ==========================================
 
-print("\n========== TABEL HIT@K ==========")
+print("\n=== TABEL HIT@K ===")
-
+print(f"{'k':<4}{'Chunk 500':<14}{'Chunk 1500':<14}")
-print(f"{'k':<5}{'Chunk 500':<15}{'Chunk 1500':<15}")
-
-hasil = {}
-
 for k in (1, 3, 5):
+    print(f"{k:<4}{hit_at_k(kol_500, UJI, k):<14.2f}{hit_at_k(kol_1500, UJI, k):<14.2f}")
 
-    h500 = hit_at_k(kol_500, UJI, k)
+print("\n=== PERTANYAAN GAGAL di k=3 ===")
-    h1500 = hit_at_k(kol_1500, UJI, k)
-
-    hasil[k] = (h500, h1500)
-
-    print(f"{k:<5}{h500:<15.2f}{h1500:<15.2f}")
-
-
-# ==========================================
-# 9. MENAMPILKAN PERTANYAAN YANG GAGAL
-# ==========================================
-
-print("\n========== PERTANYAAN GAGAL DI k=3 ==========")
-
-gagal = []
-
 for pertanyaan, kunci in UJI:
+    ok_500  = any(kunci.lower() in d.lower()
+                  for d in kol_500.query(query_texts=[pertanyaan], n_results=3)["documents"][0])
+    ok_1500 = any(kunci.lower() in d.lower()
+                  for d in kol_1500.query(query_texts=[pertanyaan], n_results=3)["documents"][0])
+    if not ok_500 and not ok_1500:
+        print(f"X {pertanyaan}  (kunci: '{kunci}')")
 
-    docs_500 = kol_500.query(
+print("\n=== SELESAI ===")
-        query_texts=[pertanyaan],
-        n_results=min(3, kol_500.count())
-    )["documents"][0]
-
-    docs_1500 = kol_1500.query(
-        query_texts=[pertanyaan],
-        n_results=min(3, kol_1500.count())
-    )["documents"][0]
-
-    ok_500 = any(kunci.lower() in d.lower() for d in docs_500)
-    ok_1500 = any(kunci.lower() in d.lower() for d in docs_1500)
-
-    if not ok_500 or not ok_1500:
-
-        gagal.append(pertanyaan)
-
-        print(f"\nPertanyaan: {pertanyaan}")
-        print(f"Kata kunci: {kunci}")
-        print(f"Chunk 500 : {'Berhasil' if ok_500 else 'Gagal'}")
-        print(f"Chunk 1500: {'Berhasil' if ok_1500 else 'Gagal'}")
-
-if not gagal:
-    print("Semua pertanyaan berhasil ditemukan pada kedua koleksi.")
-
-
-# ==========================================
-# 10. KESIMPULAN OTOMATIS
-# ==========================================
-
-print("\n========== KESIMPULAN ==========")
-
-rata_500 = sum(v[0] for v in hasil.values()) / len(hasil)
-rata_1500 = sum(v[1] for v in hasil.values()) / len(hasil)
-
-print(f"Rata-rata Hit@K Chunk 500  : {rata_500:.2f}")
-print(f"Rata-rata Hit@K Chunk 1500 : {rata_1500:.2f}")
-
-if rata_500 > rata_1500:
-    print("Chunk 500 memiliki hasil pencarian lebih baik.")
-elif rata_1500 > rata_500:
-    print("Chunk 1500 memiliki hasil pencarian lebih baik.")
-else:
-    print("Kedua ukuran chunk memiliki hasil rata-rata yang sama.")
-
-print(
-    f"Jumlah pertanyaan yang gagal pada minimal satu koleksi "
-    f"di k=3: {len(gagal)} dari {len(UJI)}."
-)
-
-print(
-    "Kegagalan pencarian dapat disebabkan oleh perbedaan istilah, "
-    "informasi yang tersebar di beberapa chunk, atau hasil embedding "
-    "yang kurang relevan."
-)
-
-print("\n========== PENGUJIAN SELESAI ==========")