منابع مشابه
Two Heads are Better than Two
We show that a Turing machine with two single-head one-dimensional tapes cannot recognize the set f x2x 0 j x 2 f0;1g and x 0 is a preex of x g in real time, although it can do so with three tapes, two two-dimensional tapes, or one two-head tape, or in linear time with just one tape. In particular, this settles the longstanding conjecture that a two-head Turing machine can recognize more langua...
متن کاملA Prioritized Communication Based Clustered Architecture with Two Cluster Heads
To improve clustered communication architecture, in this work a prioritized clustering mechanism is defined. The prioritization is here provided under energy based analysis. The improved formed cluster is defined here with two cluster head. One cluster to control the communication for high energy nodes and other to control the communication for low energy nodes. The work includes a parametric a...
متن کاملSeek Distances in Disks with Two Independent Heads Per Surface
Two-headed disk systems are commercially available, however their special characteristics are not broadly studied. As categorized in [5], these systems may have (a) two arms autonomously controlled, (b) two arms and a single controller or, finally, (c) a single arm with two fixed heads. The last case is examined in [1,3,6-81, the second case is examined in [2], while the first case is examined,...
متن کاملWhy two heads apart are better than two heads together: multiple mechanisms underlie the collaborative inhibition effect in memory.
Although a group of people working together remembers more than any one individual, they recall less than their predicted potential. This finding is known as collaborative inhibition and is generally thought to arise due to retrieval disruption. However, there is growing evidence that is inconsistent with the retrieval disruption account, suggesting that additional mechanisms also contribute to...
متن کاملWhen Three Heads Are Better Than Two
The present study investigated the effects of both group size and heterogeneity in relevant math skill on collaborative problem solving. Overall, triads demonstrated better reasoning and more effective cryptarithmetic problem solving than dyads and singletons. Importantly, triads outperformed the best individuals in a nominal groups analysis. Triads were also better able than dyads to take adva...
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ژورنال
عنوان ژورنال: Traditiones
سال: 2012
ISSN: 0352-0447
DOI: 10.3986/traditio2012410212