R. Alterman, "An Adaptive Planner", Proceedings of 5th AAAI, 1986, 65-69. . J. G. Carbonell, "Derivational Analogy and its Role in n D Problem Solving", Proceedings of AAAI, Washingto .C., 1983, 64-69.  Home/Search   Document Not in Database   Summary   Related Articles   Check

....] Diagnosis Therapy MPA [ Ram and Francis Jr. 1996] Navigation Planning MRL [ Koehler, 1994; Koehler, 1995; Koehler, 1996 ] Software Reuse Murdock et al. Murdock et al. 1997 ] Other PARIS [ Bergmann and Wilke, 1995; Bergmann and Wilke, 1996; Veloso et al. 1996 ] Process Planning PLEXUS [ Alterman, 1986; Alterman, 1988] Other PPR [ Plaza et al. 1997] Other PRIAR [ Kambhampati and Hendler, 1992 ] Other PRODIGY ANALOGY [ Veloso, 1994; Veloso et al. 1995; Veloso et al. 1996 ] Logistics ROBBIE [ Fox and Leake, 1995a; Fox and Leake, 1995b ] Navigation Planning ROUTER [ Goel et al. 1994; Goel ....

R. Alterman. An adaptive planner. In Proc. of the 5th National Conference on Artificial Intelligence, pages 65--71, Philadelphia, PA, 1986.

....alters its indexing, but uses an analysis of its reasoning process to detect a broader class of failures: its introspective reasoning allows it to detect a bad retrieval even when its case adaptor can repair the problems to produce a successful solution. Other case based planners include PLEXUS #Alterman, 1986# which applies cases describing routine, everyday plans for traveling by public transportation. PLEXUS is concerned with the integration of planning and action, as ROBBIE is, and performs adaptation of retrieved routine plans as an execution task. A plan step which cannot be applied immediately ....

Alterman, R. #1986#. An adaptive planner. In Proceedings of the Fifth National Conference on Arti#cial Intelligence,pp.65#69 Philadelphia, PA. AAAI.

....in an attempt to acquire the missing knowledge. They implement their approach of plan transformation in an exploratory discovery system, IULIAN (Interrogative Understanding and Learning In AberdeeN) and test the system in various problem domains. 18 2.3. 3 Adaptive Planning Adaptive planning [Alt86a, Alt86b, Alt88] is an approach to the flexible utilization of the old plans. It takes advantage of the details associated with specific plans while still maintaining the flexibility of a planner that works from general plans to specific ones. The adaptive planning techniques are thus sufficiently robust to ....

....cost as a measurement of plan efficiency, which can be viewed as a negative reward. CADDY tries to find a plan with low estimated costs. 6.2 CADDY and Plan Adaptation We next compare CADDY with several plan adaptation systems. HACKER [Sus75] WOK [Ham83] CHEF [Ham86a, Ham86b, Ham89] PLEXUS [Alt86a, Alt86b, Alt88], GTD paradigm [Sim88a, Sim88b] and CADDY are similar in a number of respects. They are all single agent planning systems; they attempt to use past experiences to overcome current problems encountered; they use a collection of plans to serve as past experiences; and they use heuristics (or ....

Richard Alterman. An Adaptive Planner. In Proceedings of the Fifth National Conference on Artificial Intelligence, pages 65--69, Philadelphia, Pennsylvania, U.S.A., August 11 -- 15 1986. American Association for Artificial Intelligence.

....and problem decomposition can be turned into a PM. Some of the ones we have been considering are abstraction hierarchies [70] 71] 72] case based planning [28] 29] 37] constraint based planners [80] 81] plan reuse [20] mixedinitiative planning [65] agent planning [2] 59] 67] and others [6] [23] 84] The one we describe here is a distributed planning PM called the Horde Planner (HP) The HP tries to collect together a complete set of resources that can solve a problem (or a set of problems) before any resources are applied. The HP uses the information in the WKB in a planning ....

Richard Alterman, "An Adaptive Planner", pp. 6569 in Proceedings AAAI'86: The Fifth National Conference on Artificial Intelligence, 11-15 August 1986, Philadelphia, Pennsylvania, AAAI (1986); reprinted in pp. 660-664 in [4]

....Hendler, 1989] in which the internal dependency structure of the plan, annotated by the planner during planning, 34 can be utilized in identifying potential failures and refitting old solutions to new problems [Kambhampati and Hendler, 1989, p. 38] Alterman s Plexus system [Alterman, 1988; Alterman, 1986] is an adaptive planner: it uses general plans in combination with old specific plans to generate needed plans for new situations: the general plan constrains the search space associated with adapting a specific plan. Information about the new context is used to determine which aspects of the ....

Richard Alterman. An Adaptive planner. In Proceedings of the 5 th National Conference on Artificial Intelligence, 1986.

.... and then debugging it (GTD generate, test and debug paradigm) Simmons 88] However, a close look at these examples reveals that systems built accordingly have been considered either as early CBR systems (e.g. CHEF [Hammond 86] PERSUADER [Sycara 88] or their precursors (e.g. PLEXUS [Alterman 86] or the techniques developed therein, e.g. plan transformations using indices [Owens 88] and adaptation of explanations [Kass 88, Kass 89] seem to have been taken over by CBR specialists, as historical near ancestors of modern CBR. These observations can be taken to justify the view that CBR ....

Alterman R.: An Adaptive Planner. Proc. AAAI-86, AAAI Press/MIT Press, 1986, pp 65 - 69.

....be complex. 2. Parametrized solutions, a structural adaptation, is probably best understood. It is based on the comparison of the retrieved and input problem descriptions along the specified parameters. Parametrized adaptation is used in HYPO (Ashley, 1990) PERSUADER (Sycara, 1987) and PLEXUS (Alterman, 1986). 3. Abstraction and respecialization is a general structural adaptation technique that abstracts the piece of the retrieved solution, and respecializes it later. Respecialization results in applying other specializations of the abstractions to the current situation. Thus, it results in analogical ....

....structural adaptation technique that abstracts the piece of the retrieved solution, and respecializes it later. Respecialization results in applying other specializations of the abstractions to the current situation. Thus, it results in analogical problem solving. This technique is used in PLEXUS (Alterman, 1986) as a second step in adaptation process (first, a null adaptation is used, and only if something fails, the system replans it using abstraction and respecialization) A similar approach is used in PERSUADER (Sycara, 1987) 4. Critic based adaptation is a structural adaptation based on using ....

Alterman, R. (1986). An adaptive planner. In Proc. of AAAI-86, pages 65--69, Philadelphia, PA.

....since it signifies important rules of thumb, policies, and past experience. 4.4 Dynamic Real World Problems Require Dynamic Solutions The fourth similarity is that both DCSP and CBR have been applied to the same types of problems. These are problems such as design [21, 11, 10, 14] planning [3, 20], and scheduling [17] where the problem characteristics evolve as time progresses. 5 Results and Observations from Combining CBR and CSP Through our previous work on combining CSP and CBR, we found that the challenges for dynamic CSP and case adaptation are the same. We first describe our ....

R. Alterman. An adaptive planner. In Proceedings of the Fifth National Conference on Artificial Intelligence, 1986.

....and Hendler, 1989) in which the internal dependency structure of the plan, annotated by the planner during planning, can be utilized in identifying potential failures and refitting old solutions to new problems (Kambhampati and Hendler, 1989, p. 38) Alterman s PLEXUS system (Alterman, 1988; Alterman, 1986) is an adaptive planner: it uses general plans in combination with old specific plans to generate needed plans for new situations: the general plan constrains the search space associated with adapting a specific plan. Information about the new context is used to determine which aspects of the ....

Alterman, R. (1986). An adaptive planner. In Proceedings of the 5 th National Conference on Artificial Intelligence.

....In general, prophylactic treatment is suitable for patients with frequent migraines. Inderal may not be suitable for you if you have diabetes, problems with your heart, or a severe pulmonary disease such as asthma. Some side effects of Inderal are lowered blood pressure, fatigue, and depression. [2] USER Describe Elavil. 3] SYSTEM Like Inderal, Elavil is used for prophylactic treatment of migraine. Elavil may not be suitable for you if you have irregular heartbeat or if you experience dizziness when you stand up. Elavil is better than Inderal for patients who experience depression, because ....

....check for certain patterns in the user model and dialogue history. This may lead to a proliferation of plan operators. An alternative approach is to apply techniques from the work in plan reuse and adaptation that have emerged in the the Artificial Intelligence planning community (e.g. [2, 9]) and we are considering this alternative. ACKNOWLEDGEMENTS The research described in this paper was supported by Grant No. R01 LM05299 01 from the National Library of Medicine, National Institute of Health. Johanna Moore is also supported by a Research Initiation Award from the National Science ....

Alterman, R. An adaptive planner. In Proceedings of the Fifth National Conference on Artificial Intelligence (Philadelphia, Pennsylvania, August 11-15, 1986), pp. 65--69.

....planning and planning by constraint satisfaction. O PLAN[5] Currie Tate 1985 A general domain planner notable for modularity and integration a close decedent of NONLIN CHEF[16] Hammond 1986 Case based planning, learns from past plans and maintains memory of success and failure. PLEXUS[1] Alterman 1986 Adaptive planning, adapts old plans for use in new situations TWEAK[4] Chapman 1987 used a mathematically robust bases, was proved sound and complete but was to restrictive to use GEMPLAN[19] Lansky 1988 Uses event location to limit the search space and create parallel muti agent ....

R. Alterman. An adaptive planner. In Proceedings AAAI '86, pages 65--69. American Association for Artificial Intelligence, 1986.

....and what we can conclude from them. 2 The ROBBIE System The ROBBIE system demonstrates the application of an introspective self model to the task of refining the indices used to retrieve cases from memory.The system has two main parts: a planner which develops plans through case based reasoning [2, 14, 15] and applies them through execution in a simulated world, and an introspective model based reasoner which detects, explains, and repairs reasoning failures caused by poor indexing criteria. The performance task of ROBBIE is to navigate around a simulated set of city streets as a pedestrian. ROBBIE ....

R. Alterman. An adaptive planner. In Proceedings of the Fifth National Conference on Artificial Intelligence, pages 65--69, Philadelphia, PA, August 1986. AAAI.

....actor s particular circumstances [Suchman, 1988, p. 27] On the other hand, a routine might be a plan, a set of policies, or a script to be followed. I consider plans and scripts to be routines at the conscious level. 2 In computational terms, this is like a macro. In memory based planning [Alterman, 1986, Hammond, 1986] old plans (cases) are modified to suit new situations, and from this new plans are learned. The problem in memory based planning is debugging the ordering of acts in a plan. Often a few of the steps in a plan may need to be excluded, reordered, or modified. Our problem is not ....

Alterman, R. (1986). An adaptive planner. In Proceedings of AAAI-86, pages 65--69, Boston.

....approach to AI planning assumes that plans are guaranteed to work and that nothing unexpected can happen during their execution. However, in many real world domains the inevitability of the unexpected means that any plans that are made in advance will have to be changed during execution (Alterman 1986; Firby 1987; Hammond 1989; Pryor Collins 1994) Expending a great deal of effort on constructing elaborate and detailed plans by trying to predict exactly what will happen is therefore often unproductive. A more effective approach is to choose simple plans and adapt them when unforeseen ....

Alterman, R. 1986. An adaptive planner. In Proc. 5th Nat. Conf. on Artificial Intelligence, 65--69. AAAI.

....to retrieve cases or abstractions relevant to the current situation in which the system finds itself. But the specifics of functional relevance depend upon the task in which the system is engaged: ffl For case based planners like chef (Hammond, 1989) clavier (Barletta and Mark, 1988) plexus (Alterman, 1986), or julia (Hinrichs, 1988) Kolodner, 1987) a case is relevant to the degree to which the plan constructed from that case satisfies the system s current goals. ffl For a system whose goal is to build explanations, like swale (Kass et al. 1986) or casey (Koton, 1988) a case is relevant to the ....

Alterman, R. (1986). An adaptive planner. In Proceedings of the Fifth National Conference on Artificial Intelligence, pages 65--69, Philadelphia, PA. AAAI.

....email: rao sunrise.stanford.ed he ability to modify an existing plan to make it conform to the t f constraints of a new (or changed) planning situation is importan or plan reuse, replanning and case based planning. While , significant amount of past work addressed this problem (e.g. 2, 3] [5, 1] [13] 17] 16] there is still a lack of understanding . F of the general types of modification strategies and their coverage or example, while it is generally agreed that the information e fl about the internal structure of the plan is important to facilitat exible plan modification, the ....

R. Alterman, "An Adaptive Planner", Proceedings of 5th

....alters its indexing, but uses an analysis of its reasoning process to detect a broader class of failures: its introspective reasoning allows it to detect a bad retrieval even when its case adaptor can repair the problems to produce a successful solution. Other case based planners include PLEXUS (Alterman, 1986) which applies cases describing routine, everyday plans for traveling by public transportation. PLEXUS is concerned with the integration of planning and action, as ROBBIE is, and performs adaptation of retrieved routine plans as an execution task. A plan step which cannot be applied immediately is ....

Alterman, R. (1986). An adaptive planner. In Proceedings of the Fifth National Conference on Artificial Intelligence, pp. 65--69 Philadelphia, PA. AAAI.

....fits in and what we can conclude. The ROBBIE system The ROBBIE system is, at the most basic task level, a planning system, which interacts with a user and a simulated world to generate and execute plans for that world. That performance task is performed by a case based planner (Hammond, 1989; Alterman, 1986; Kolodner, 1993) combined with a simple reactive style execution system (Firby, 1989) Overarching the performance task is the task of learning introspectively about the planning and execution process itself, which is done using model based reasoning about the system s own reasoning process ....

Alterman, R. (1986). An adaptive planner. In Proceedings of the Fifth National Conference on Artificial Intelligence, pp. 65--69 Philadelphia, PA. AAAI.

No context found.

R. Alterman, "An Adaptive Planner", Proceedings of 5th AAAI, 1986, 65-69. . J. G. Carbonell, "Derivational Analogy and its Role in n D Problem Solving", Proceedings of AAAI, Washingto .C., 1983, 64-69.

No context found.

R. Alterman. An adaptive planner.

Online articles have much greater impact   More about CiteSeer.IST   Add search form to your site   Submit documents   Feedback  

CiteSeer.IST - Copyright Penn State and NEC