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排序方式: 共有541条查询结果,搜索用时 31 毫秒
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《Behaviour & Information Technology》2012,31(5):304-314
Abstract This paper describes a new method for knowledge elicitation that may contribute to effective expertise transfer from human experts to knowledge-based systems. The method was applied to knowledge transfer in an aerospace design context. Knowledge was transferred directly from an expert designer to both expert and novice “receivers” of information. Transfer occurred in a natural way, without intervention from a knowledge engineer. To evaluate the process, the information receivers were required to recall the transmitted knowledge after a seven week delay. Results suggest that this method can be effective for expertise transfer and can indicate desirable characteristics for knowledge-based systems which aim to be adaptable to users’ differing levels of competence. 相似文献
23.
针对查询分解算法查询的局限性和较低的查全率,提出了一种基于本体XQuery语言FWR表达式的查询分解算法.该算法利用XQuery全局查询语句,以FWR表达式的3项操作(构造查询范围、子查询条件和子查询输出属性集)将基于全局本体的查询分解到针对局部本体的子查询,能够降低查询分解的复杂性、保证查询的语义完整性,并能提高查全率.通过实例进行具体分析,验证了算法的有效性. 相似文献
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Watson Jason M.; Bunting Michael F.; Poole Bradley J.; Conway Andrew R. A. 《Canadian Metallurgical Quarterly》2005,31(1):76
The authors addressed whether individual differences in the working memory capacity (WMC) of young adults influence susceptibility to false memories for nonpresented critical words in the Deese-Roediger-McDermott associative list paradigm. The results of 2 experiments indicated that individuals with greater WMC recalled fewer critical words than individuals with reduced WMC when participants were forewarned about the tendency of associative lists (e.g., bed, rest, . . .) to elicit illusory memories for critical words (e.g., sleep). In contrast, both high and low WMC participants used repeated study-test trials to reduce recall of critical words. These findings suggest that individual differences in WMC influence cognitive control and the ability to actively maintain task goals in the face of interfering information or habit. (PsycINFO Database Record (c) 2010 APA, all rights reserved) 相似文献
26.
Kahana Michael J.; Rizzuto Daniel S.; Schneider Abraham R. 《Canadian Metallurgical Quarterly》2005,31(5):933
This article addresses the relation between item recognition and associative (cued) recall. Going beyond measures of performance on each task, the analysis focuses on the degree to which the contingency between successful recognition and successful recall of a studied item reflects the commonality of memory processes underlying the recognition and recall tasks. Specifically, 4 classes of distributed memory models are assessed for their ability to account for the relatively invariant correlation (≈ .5) between successive recognition and recall. Basic versions of each model either under- or overpredict the intertask correlation. Introducing variability in goodness-of-encoding and response criteria, as well as output encoding, enabled all 4 models to reproduce the moderate intertask correlation and the increase in correlation observed in 2 mixed-list experiments. This model-based analysis provides a general theoretical framework for interpreting contingencies between successive memory tests. (PsycINFO Database Record (c) 2010 APA, all rights reserved) 相似文献
27.
We present an efficient and accurate method for retrieving images based on color similarity with a given query image or histogram.
The method matches the query against parts of the image using histogram intersection. Efficient searching for the best matching
subimage is done by pruning the set of subimages using upper bound estimates. The method is fast, has high precision and recall
and also allows queries based on the positions of one or more objects in the database image. Experimental results showing
the efficiency of the proposed search method, and high precision and recall of retrieval are presented.
Received: 20 January 1997 / Accepted: 5 January 1998 相似文献
28.
Mayes Andrew R.; Montaldi Daniela; Spencer Tom J.; Roberts Neil 《Canadian Metallurgical Quarterly》2004,18(3):426
Activations produced by the recall of episodic and semantic memories differing in spatial content and age were examined. Recall of recent episodic memories with differing spatial content activated the medial temporal lobes and the retrosplenial-posterior cingulate cortex-precuneus complex more than recall of recent semantic memories with similarly differing spatial content. Some of these differences related to the amount of spatial information recalled because spatially richer recent memories, regardless of whether they were episodic or semantic, activated the right posterior parahippocampal cortex, precuneus, and posterior parietal cortex more. This spatial effect was found to be independent of memory age for semantic memories, although some episodic-semantic memory differences, including one in the left hippocampus, were not age independent. Episodic-semantic memory recall activation differences are therefore probably a function of the amount recalled, memory age, and what is recalled, particularly with respect to spatial information. (PsycINFO Database Record (c) 2010 APA, all rights reserved) 相似文献
29.
Marsh Elizabeth J.; Dolan Patrick O.; Balota David A.; Roediger Henry L. 《Canadian Metallurgical Quarterly》2004,19(1):134
In 3 experiments, the authors examined part-set cuing effects in younger and older adults. Participants heard lists of category exemplars and later recalled them. Recall was uncued or cued with a subset of studied items. In Experiment 1, participants were cued with some of the category names, and they remembered fewer never-cued categories than a free-recall condition. In Experiment 2, a similar effect was observed for category exemplar cues. There was also an age difference: By some measures, a small number of cues impaired older adults more than younger. Experiment 3 replicated this result and found that older adults were disproportionately slow in the presence of cues. Across experiments, older adults showed robust part-set cuing effects, and sometimes, they were disproportionately impaired by cues. (PsycINFO Database Record (c) 2010 APA, all rights reserved) 相似文献
30.
In 3 experiments, the authors investigated the effects of to-be-remembered (TBR) and intervening list length on free recall to determine whether selective rehearsal could explain the previous finding that recall was affected only by TBR list length. In Experiments 1 (covert rehearsal) and 2 (overt rehearsal), participants saw 5- and 20-word lists and had to recall the list prior to that last presented list. In Experiment 3, either 1 or 2 lists were presented, and recall of TBR list was postcued. Recall proportion decreased with increased TBR list length. Moreover, the authors found extended recency effects when recall was replotted by when words were last rehearsed (Experiments 2 and 3) and an effect of intervening list length when rehearsal was reduced (Experiment 3). (PsycINFO Database Record (c) 2010 APA, all rights reserved) 相似文献