Wu-Weism can analyze research papers directly. You can attach a PDF to any Causal Chat message — the extracted evidence then grounds the response in the paper’s actual data — or use the dedicated PDF Synthesis tool to cross-analyze up to six papers simultaneously. Both surfaces extract structured numeric evidence, generate governed claims, and record everything in the Claim Ledger.Documentation Index
Fetch the complete documentation index at: https://wuweism.com/llms.txt
Use this file to discover all available pages before exploring further.
Two ways to use PDFs
- Causal Chat attachment
- PDF Synthesis (/pdf-synthesis)
Attach a single PDF to a Causal Chat message. The PDF’s content is extracted and used to inform the causal response to your question. Best for:
- Grounding a specific causal question in a paper’s reported data
- Checking whether a paper’s findings support or contradict a claim
- Extracting key statistics while also running causal analysis
Analyzing a single paper in Causal Chat
Open a Causal Chat conversation
Navigate to /chat and start a new conversation or continue an existing one.
Click the attachment button
Click the paperclip icon (attachment button) in the message input bar. A file picker will open. Select your PDF file.The PDF name will appear as an attachment chip next to the message input. You can attach one PDF per message.
Type your question
Write your causal question in the message input as you normally would. The question will be analyzed in the context of the attached paper.
Example question with PDF attached
Another example
Read the three-section output
When a PDF is attached, the response follows a structured three-section output contract:
Section 1: All explicit numbers with contextEvery numeric value extracted from the paper, grouped by category:
Section 2: Claim-eligible numericsA filtered subset of Section 1 containing only the values that are precise enough and contextually clear enough to anchor a governed claim. Values with ambiguous units, missing context, or contradictory definitions elsewhere in the paper are excluded from this section.
Section 3: Three claims with uncertainty labelsThree governed claims derived from the paper’s evidence. Each claim carries an evidence class label:
All three claims are automatically recorded in the Claim Ledger.
Section 1: All explicit numbers with contextEvery numeric value extracted from the paper, grouped by category:
| Category | Examples |
|---|---|
| Potential metrics | Effect sizes, p-values, confidence intervals, odds ratios |
| Structural | Sample sizes, group counts, time points, dosages |
| Bibliographic | Publication year, journal impact factor if present |
| Citation years | Years of cited works |
| Reference indices | Reference numbers linked to cited claims |
Section 2: Claim-eligible numericsA filtered subset of Section 1 containing only the values that are precise enough and contextually clear enough to anchor a governed claim. Values with ambiguous units, missing context, or contradictory definitions elsewhere in the paper are excluded from this section.
Section 3: Three claims with uncertainty labelsThree governed claims derived from the paper’s evidence. Each claim carries an evidence class label:
| Evidence class | Meaning |
|---|---|
bibliographic/structural only | The claim is supported only by citation references or study design information — no direct numeric metrics |
mixed | The claim combines structural evidence with some numeric data, but the metrics are indirect or aggregated |
metric-bearing | The claim is directly supported by explicit numeric measurements from the paper |
Example Section 3 output
Using PDF Synthesis for multi-paper analysis
PDF Synthesis is a dedicated research surface at /pdf-synthesis designed for analyzing multiple papers at once.Upload your PDFs
Drag and drop up to six PDF files into the upload area, or click Select files to use the file picker. Each file appears in the upload queue with its name and size.
Optionally specify a research focus
In the Research focus field, enter a brief description of what you are investigating. This helps Wu-Weism weight evidence and frame claims around your specific question rather than the papers’ full scope.
Example research
Review synthesized output
The synthesis produces:
- Numeric evidence summary: Aggregated metrics across all papers, including table counts, trusted table counts (tables where headers and data are reliably parsed), and total data point counts per paper.
- Cross-paper claim comparison: Where multiple papers address the same causal relationship, Wu-Weism surfaces agreement and contradiction.
- Governed claims set: Claims derived from the full corpus, each attributed to the source paper(s) and labeled with an evidence class.
- Reconciliation notes: Where papers conflict on effect direction or magnitude, the synthesis explicitly flags the disagreement rather than averaging it away.
What gets extracted
When Wu-Weism processes a PDF — whether in Causal Chat or PDF Synthesis — it extracts:| Extracted field | Description |
|---|---|
| Numeric evidence | All numeric values with surrounding context |
| Table counts | Number of tables identified in the document |
| Trusted table counts | Tables where structure is reliably parsed (headers and rows matched) |
| Data point counts | Total discrete numeric data points extracted |
| Claims | Candidate claims derived from evidence |
| Bibliographic metadata | Where present: authors, year, journal |
Claims and the Claim Ledger
Every claim produced from a PDF analysis — whether in Causal Chat or PDF Synthesis — is automatically recorded in the Claim Ledger with:- Source paper name
- Section of the paper the claim derives from
- Evidence class label
- Confidence score
- Session and timestamp
Limitations
- Text layer required: PDFs must have an embedded text layer. Scanned-only documents have significantly degraded extraction.
- Complex table layouts: Multi-level headers, merged cells, and sideways tables may not parse correctly into the trusted table count.
- Supplementary materials: If supplementary data is in a separate file, upload it as a separate document in PDF Synthesis or attach it in a second Causal Chat message.
- Non-English papers: Extraction and claim generation quality is highest for English-language documents.
Next steps
- Combine PDF evidence with intervention questions: Running interventions
- Understand how claims are governed and audited: Claim Ledger
- Run a full multi-paper synthesis with the Hybrid Synthesis tool: Hybrid Synthesis
