Comprehensive Working Memory Activation in Soar

نویسندگان

  • John E. Laird
  • Andrew Nuxoll
چکیده

Memory activation has been modeled in symbolic architectures in the past, but usually at the level of individual chunks or productions in long term memory. Recent research (Chong 2003) has demonstrated activation at the level of individual elements of working memory. In this paper, we present a comprehensive implementation of working memory activation in Soar that takes advantage of the unique characteristic of Soar's working memory structure, namely persistence. We also explore modifications to activation so that the activation of new working memory elements is not a fixed level, but is based on the activation of the working memory elements tested in its creation. We demonstrate our model in terms of how it aids the selection of features relevant to learning.

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Effective and Efficient Management of Soar's Working Memory via Base-Level Activation

This paper documents a functionality-driven exploration of automatic working-memory management in Soar. We first derive and discuss desiderata that arise from the need to embed a mechanism for managing working memory within a general cognitive architecture that is used to develop realtime agents. We provide details of our mechanism, including the decay model and architecture-independent data st...

متن کامل

Spontaneous Retrieval for Prospective Memory: Effects of Encoding Specificity and Retention Interval

This paper explores the role of spontaneous retrieval in prospective memory, in an agent implemented in the Soar cognitive architecture. At goal initiation time, spreading activation causes the goal to be the most activated element in long-term memory, at which point it is spontaneously retrieved into working memory and pursued. We show that goal encoding specificity increases prospective memor...

متن کامل

Citicoline Improves Human Vigilance and Visual Working Memory: The Role of Neuronal Activation and Oxidative Stress

Introduction: Psychomotor performance task is used to assess the arousal and cognitive functions of the central nervous system. Alternatively, human visual working memory reflects the capability of the individual’s short-term memory. Psycho-mental stimuli are linked to the stimulation of Malondialdehyde (MDA) formations. Citicoline is a nootropic nucleotide agent with a favorable effect on the ...

متن کامل

The Effect of Dual Task Interference on Gait in Aging: Role of Working Memory Components

The purpose of the present study was to investigate the effect of concurrent cognitive tasks activating phonological loop and visuospatial scratchpad of working memory on gait in older adults.12 older adults with the age range of 65-70 years performed walking trials in 3 counterbalanced testing conditions including single walking, walking while performing visuospatial task and walking while per...

متن کامل

The Soar Cognitive Architecture and Human Working Memory

(3) Soar does not currently include any capacity limits on its dynamic memory (SDM), but is compatible with certain such limitations. In particular, a constraint that SDM can hold at most two items of the same “type” (suitably defined) yields a coherent explanation for many psycholinguistic phenomena in the comprehension of sentences. This constraint is motivated by computational efficiency con...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

عنوان ژورنال:

دوره   شماره 

صفحات  -

تاریخ انتشار 2004