---
title: "Opportunistic Memory"
authors:
  - "Kristian J. Hammond"
doi: ""
url: "https://ijcai.org/proceedings/1989/81"
pdf: "https://ijcai.org/proceedings/1989/0081.pdf"
venue: "Proceedings of the Eleventh International Joint Conference on Artificial Intelligence"
year: 1989
pages: "504-509"
track: "Cognitive Models"
keywords:
---

# Opportunistic Memory

Kristian J. Hammond

*Proceedings of the Eleventh International Joint Conference on Artificial Intelligence*, pages 504-509.

## Abstract

In this paper, we present a model of opportunistic planning that uses planning-time reasoning about the opportunities that might arise during plan execution. The model is composed of three parts: a planning-time mechanism that places blocked goals into memory for later activation, an understanding system that activates suspended goals as a byproduct of parsing the world, and an executiontime process for evaluating opportunities and merging newly activated goals into the planning/execution agenda. We discuss this model in terms of examples from TRUCKER, a routescheduling system, and RUNNER, an errand planner.