How to Quick Search for Journal Impact Factor and Rankings 🔍

Feature Introduction

You can directly search for journal's JCR impact factor, journal quartiles, CAS rankings, and other key information within the PaperPop extension.

Search Steps

Step 1: Open Search Interface

1. Click the PaperPop icon in your browser toolbar 🔧
2. Find the "JCR & IF Search" section in the settings panel

Step 2: Enter Journal Information

Enter journal information in the search box, supporting multiple formats:

Full Journal Name Examples:

• Nature
• Science
• Cell
• The Lancet
• Journal of Machine Learning Research

Journal Abbreviation Examples:

• JMLR (Journal of Machine Learning Research)
• PNAS (Proceedings of the National Academy of Sciences)
• N ENGL J MED (New England Journal of Medicine)

Step 3: Execute Search

1. After entering the journal name, click the "Search" button 🔍
2. Or press Enter for quick search

Step 4: View Results

After a successful search, detailed journal information will be displayed below:

Impact Factor Information 📊

• Current Impact Factor (IF): Shows the latest annual impact factor value
• 5-Year Impact Factor (IF 5Y): Shows the five-year average impact factor
• Color Coding:
  • IF > 5: Excellent Journal
  • 2 < IF ≤ 5: Good Journal
  • 1 < IF ≤ 2: Average Journal
  • IF < 1: Low Impact Factor Journal

Journal Quartile Information 🏆

• JCR Quartiles: Q1, Q2, Q3, Q4 four levels
• CAS Categories: 1st, 2nd, 3rd, 4th tier four levels

Journal Ranking Information 📋

Display relevant rankings based on your settings:

• Core Journals: Peking University Core Journal Catalog
• CSSCI: Chinese Social Sciences Citation Index
• CCF Recommended: China Computer Federation Recommended Journals
• SWJTU Classification: Southwest Jiaotong University Journal Classification

Search Tips 💡

Input Tips

1. Fuzzy Matching Support: No need to enter the complete exact journal name
2. Case Insensitive: nature and Nature have the same effect
3. Automatic Stop Word Processing: Automatically ignores words like The, A, An
4. Full Name Priority: If journal abbreviations don't yield results, try using the full journal name.

Search Results Explanation

No Results Message

If "No results found" is displayed, possible reasons:

• Incorrect journal name input
• Journal not in database (e.g., newly established journals)
• Journal is a conference proceedings, not within journal database scope

Data Source Information

• JCR Data: From the latest 2024 Journal Citation Reports
• CAS Categories: From the latest 2025 Chinese Academy of Sciences Library and Information Center Journal Classification
• Journal Rankings: From authoritative institutions' publicly released journal catalogs -- Compiled from university library and public internet data, may contain errors or delays. Please report any errors to us, thank you~

Practical Use Cases 🎯

1. Before Paper Submission: Quickly understand target journal's impact factor and quartile
2. While Reading Literature: Evaluate the academic level of the journal where papers are published
3. Academic Evaluation: Provide journal quality reference for professional title evaluation and project applications
4. Research Planning: Select journals with appropriate impact factors for submission

Tips 💡

• Search results display in real-time, no need to refresh the page
• You can search multiple journals consecutively, each search will overwrite the previous result
• Recommend bookmarking frequently used journal impact factor information to avoid repeated searches
• PaperPop data is updated regularly to ensure timeliness and accuracy of information