Call for Insights: Revitalizing Analysis of Competing Hypotheses (ACH)
We’re exploring innovative software, services, and methods for Analysis of Competing Hypotheses (ACH)—a structured analytic technique used to evaluate multiple hypotheses systematically.
ACH encourages rejecting hypotheses rather than confirming the most likely one, which aligns with scientific principles like Karl Popper’s philosophy of falsifiability. It’s particularly effective for intelligence analysis, criminal investigations, and other areas requiring detailed, systematic evaluations of ambiguous or incomplete data.
What is ACH?
ACH identifies mutually exclusive hypotheses and evaluates them against evidence to determine the least inconsistent one. Unlike satisficing (settling for the first plausible explanation), ACH requires analysts to:
- Identify alternative hypotheses.
- Analyze the consistency/inconsistency of evidence for each hypothesis.
- Focus on rejecting hypotheses systematically.
ACH promotes better transparency, mitigates bias, and ensures a comprehensive audit trail for decision-making processes.
Example done with ChatGPT for the Sixth Sense Movie.
Why Now?
The 2005 ACH software by Palo Alto Research Center (PARC), created with Richards J. Heuer Jr., was a significant step forward. However, modern analysis demands updated tools that incorporate advancements in computing, machine learning, and collaborative technologies. The old software is still available here but feels dated.
We aim to build upon this foundation to create tools that better suit the needs of today’s analysts.
Call to Action
We’re looking for:
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Software: Are there better alternatives to Excel or the PARC tool?
Tools like Python Jupyter Notebooks, R, or newer AI-powered platforms could provide a more streamlined ACH experience. -
Innovative Techniques: How does ACH compare with statistical models like AIC/BIC or Bayesian analysis? Are there hybrid approaches to improve evidence evaluation?
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Collaboration: Can we design a modern, open-source ACH tool for collaborative teams?
Features like:- Hypotheses and evidence matrices with visualization.
- Manual and automated evidence integration.
- Sensitivity analyses to identify key assumptions and gaps.
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Benchmark Datasets: Share example data to test and refine ACH tools. For instance:
- “Which weapons system is this part for?”
- “What missile system is Country X developing?”
Lessons from History
We’ve seen how publicly sourced analysis can lead to flawed conclusions, as during the Boston Marathon Bombings, where internet forums misidentified suspects, creating chaos. ACH tools could help avoid such errors by emphasizing evidence consistency and transparency. Read more here:
Boston Marathon Bombings Analysis Thread
Related Links
Join the Conversation
Let’s discuss:
- What tools or techniques do you use for ACH or similar structured analysis?
- How can we improve ACH for modern analysis needs?
- Should we collaborate on building an open-source solution?
Comment below or share your ideas in the thread!