220 lines
7.7 KiB
Plaintext
220 lines
7.7 KiB
Plaintext
{
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"cells": [
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{
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"cell_type": "code",
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"execution_count": 4,
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"id": "7c7601d6-3c91-453e-8c29-706528237596",
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"metadata": {
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"scrolled": true
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},
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"outputs": [
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{
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"name": "stdout",
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"output_type": "stream",
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"text": [
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"Python: 3.12.2 | packaged by conda-forge | (main, Feb 16 2024, 20:50:58) [GCC 12.3.0]\n",
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"NLTK : 3.9.2\n",
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"Resource punkt siap dipakai\n",
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"TEKS CONTOH:\n",
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"\n",
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"CEO Apple, Tim Cook, meluncurkan iPhone 15 pada 12 September 2023 di Cupertino, California.\n",
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"Pada hari berikutnya, ia menghadiri pertemuan investor di San Francisco.\n",
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"\n",
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"\n",
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"TOKENS:\n",
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"['CEO', 'Apple', ',', 'Tim', 'Cook', ',', 'meluncurkan', 'iPhone', '15', 'pada', '12', 'September', '2023', 'di', 'Cupertino', ',', 'California', '.', 'Pada', 'hari', 'berikutnya', ',', 'ia', 'menghadiri', 'pertemuan', 'investor', 'di', 'San', 'Francisco', '.']\n",
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"\n",
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"POS TAGS (30 pertama):\n",
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"[('CEO', 'NNP'), ('Apple', 'NNP'), (',', ','), ('Tim', 'NNP'), ('Cook', 'NNP'), (',', ','), ('meluncurkan', 'VBD'), ('iPhone', 'NN'), ('15', 'CD'), ('pada', 'NN'), ('12', 'CD'), ('September', 'NNP'), ('2023', 'CD'), ('di', 'NN'), ('Cupertino', 'NNP'), (',', ','), ('California', 'NNP'), ('.', '.'), ('Pada', 'NNP'), ('hari', 'NN'), ('berikutnya', 'NN'), (',', ','), ('ia', 'JJ'), ('menghadiri', 'NN'), ('pertemuan', 'JJ'), ('investor', 'NN'), ('di', 'JJ'), ('San', 'NNP'), ('Francisco', 'NNP'), ('.', '.')]\n",
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"\n",
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"CANDIDATE ENTITIES (sederhana):\n",
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"- Apple\n",
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"- Tim Cook\n",
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"- September\n",
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"- Cupertino\n",
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"- California\n",
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"- Pada\n",
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"- San Francisco\n",
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"\n",
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"TANGGAL YANG DITEMUKAN:\n",
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"- 12 September 2023\n",
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"\n",
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"TANGGAL (FORMAT ISO 8601):\n",
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"- 2023-09-12\n",
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"\n",
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"EVENT PELUNCURAN PRODUK:\n",
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" Perusahaan : CEO Apple, Tim Cook\n",
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" Produk : iPhone 15\n",
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" Tanggal : 12 September 2023\n",
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" Lokasi : September\n",
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"\n",
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"TEMPLATE EVENT (hasil akhir IE):\n",
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"{'Company': 'CEO Apple, Tim Cook', 'Product': 'iPhone 15', 'LaunchDateOriginal': '12 September 2023', 'LaunchDateISO': '2023-09-12', 'Location': 'September'}\n"
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]
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}
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],
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"source": [
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"# =========================\n",
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"# NLP – Information Extraction (IE)\n",
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"# Praktikum\n",
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"# =========================\n",
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"\n",
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"# 1. Cek versi & instalasi dasar\n",
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"import sys\n",
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"import nltk\n",
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"print(\"Python:\", sys.version)\n",
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"print(\"NLTK :\", nltk.__version__)\n",
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"\n",
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"# Jika di environment belum ada NLTK terbaru, aktifkan baris di bawah:\n",
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"# !{sys.executable} -m pip install --upgrade nltk\n",
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"\n",
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"# 2. Import pustaka\n",
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"import re\n",
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"from nltk.tokenize import wordpunct_tokenize\n",
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"from nltk import pos_tag\n",
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"\n",
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"# 3. Download resource NLTK yang stabil\n",
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"nltk.download('averaged_perceptron_tagger', quiet=True)\n",
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"try:\n",
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" nltk.download('punkt', quiet=True)\n",
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" print(\"Resource punkt siap dipakai\")\n",
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"except:\n",
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" print(\"Gagal download punkt, akan tetap pakai wordpunct_tokenize\")\n",
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"\n",
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"# 4. Contoh teks (bisa diganti)\n",
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"text = \"\"\"\n",
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"CEO Apple, Tim Cook, meluncurkan iPhone 15 pada 12 September 2023 di Cupertino, California.\n",
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"Pada hari berikutnya, ia menghadiri pertemuan investor di San Francisco.\n",
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"\"\"\"\n",
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"print(\"TEKS CONTOH:\")\n",
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"print(text)\n",
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"\n",
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"# 5. Tokenisasi dan POS tagging\n",
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"tokens = wordpunct_tokenize(text)\n",
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"print(\"\\nTOKENS:\")\n",
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"print(tokens)\n",
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"\n",
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"pos_tags = pos_tag(tokens)\n",
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"print(\"\\nPOS TAGS (30 pertama):\")\n",
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"print(pos_tags[:30])\n",
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"\n",
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"# 6. Ekstraksi “entitas” sederhana (berbasis huruf kapital)\n",
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"def simple_capital_ner(tokens):\n",
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" entities = []\n",
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" current = []\n",
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" for tok in tokens:\n",
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" if tok.istitle() and tok.isalpha():\n",
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" current.append(tok)\n",
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" else:\n",
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" if current:\n",
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" entities.append(\" \".join(current))\n",
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" current = []\n",
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" if current:\n",
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" entities.append(\" \".join(current))\n",
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" return entities\n",
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"\n",
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"candidate_entities = simple_capital_ner(tokens)\n",
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"print(\"\\nCANDIDATE ENTITIES (sederhana):\")\n",
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"for e in candidate_entities:\n",
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" print(\"-\", e)\n",
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"\n",
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"# 7. Ekstraksi tanggal (Ekstraksi Waktu) dengan RegEx\n",
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"bulan_id = r\"(Januari|Februari|Maret|April|Mei|Juni|Juli|Agustus|September|Oktober|November|Desember)\"\n",
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"date_pattern = rf\"\\b(\\d{{1,2}})\\s+{bulan_id}\\s+(\\d{{4}})\\b\"\n",
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"\n",
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"dates = re.findall(date_pattern, text)\n",
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"print(\"\\nTANGGAL YANG DITEMUKAN:\")\n",
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"for d in dates:\n",
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" print(\"-\", \" \".join(d))\n",
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"\n",
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"# 8. Normalisasi tanggal ke format ISO 8601 (YYYY-MM-DD)\n",
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"bulan_map = {\n",
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" \"Januari\": \"01\",\n",
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" \"Februari\": \"02\",\n",
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" \"Maret\": \"03\",\n",
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" \"April\": \"04\",\n",
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" \"Mei\": \"05\",\n",
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" \"Juni\": \"06\",\n",
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" \"Juli\": \"07\",\n",
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" \"Agustus\": \"08\",\n",
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" \"September\": \"09\",\n",
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" \"Oktober\": \"10\",\n",
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" \"November\": \"11\",\n",
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" \"Desember\": \"12\",\n",
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"}\n",
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"\n",
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"normalized_dates = []\n",
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"for hari, bulan, tahun in dates:\n",
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" bulan_num = bulan_map[bulan]\n",
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" hari_num = hari.zfill(2)\n",
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" iso = f\"{tahun}-{bulan_num}-{hari_num}\"\n",
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" normalized_dates.append(iso)\n",
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"\n",
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"print(\"\\nTANGGAL (FORMAT ISO 8601):\")\n",
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"for iso in normalized_dates:\n",
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" print(\"-\", iso)\n",
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"\n",
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"# 9. Ekstraksi event peluncuran produk (pattern-based)\n",
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"pattern = r\"(.+?) meluncurkan (.+?) pada (\\d{1,2} \" + bulan_id + r\" \\d{4}) di (.+?)\\.\"\n",
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"match = re.search(pattern, text)\n",
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"\n",
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"if match:\n",
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" company = match.group(1).strip(\" ,\")\n",
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" product = match.group(2).strip(\" ,\")\n",
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" tgl_str = match.group(3)\n",
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" location = match.group(4).strip(\" ,\")\n",
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"\n",
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" print(\"\\nEVENT PELUNCURAN PRODUK:\")\n",
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" print(\" Perusahaan :\", company)\n",
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" print(\" Produk :\", product)\n",
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" print(\" Tanggal :\", tgl_str)\n",
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" print(\" Lokasi :\", location)\n",
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"else:\n",
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" company = product = tgl_str = location = None\n",
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" print(\"\\nPola event peluncuran produk tidak ditemukan.\")\n",
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"\n",
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"# 10. Template IE (Template Extraction)\n",
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"event_template = {\n",
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" \"Company\": company,\n",
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" \"Product\": product,\n",
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" \"LaunchDateOriginal\": tgl_str,\n",
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" \"LaunchDateISO\": normalized_dates[0] if normalized_dates else None,\n",
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" \"Location\": location,\n",
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"}\n",
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"\n",
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"print(\"\\nTEMPLATE EVENT (hasil akhir IE):\")\n",
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"print(event_template)\n"
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]
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},
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{
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"cell_type": "code",
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"execution_count": null,
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"id": "1e128113-af1e-45a1-8586-48c4acf578b4",
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"metadata": {},
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"outputs": [],
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"source": []
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}
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],
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"metadata": {
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"kernelspec": {
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"display_name": "Python 3 (ipykernel)",
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"language": "python",
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"name": "python3"
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},
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"language_info": {
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"codemirror_mode": {
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"name": "ipython",
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"version": 3
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},
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"file_extension": ".py",
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"mimetype": "text/x-python",
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"name": "python",
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"nbconvert_exporter": "python",
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"pygments_lexer": "ipython3",
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"version": "3.12.2"
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}
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},
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"nbformat": 4,
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"nbformat_minor": 5
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}
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