Abstract Given the importance of collocational knowledge for second language learning, how collocation learning can be facilitated is an important question. The present study examined effects three different practice schedules on learning: node massed, and spaced. In node-massed schedule, collocations same verb were studied day. collocation-massed in weeks. collocation-spaced participants encou...

A single item is sold to two bidders by way of a sealed bid second price auction in which bids are restricted to a set of discrete values. Restricting attention to symmetric pure strategy behavior on the part of bidders, a unique equilibrium exists. When following these equilibrium strategies bidders may bid strictly above or below their valuation, implying that the item may be awarded to a bid...

the best diet for a healthy life. One characteristic these examples all share is that they fade quickly, only to be replaced by a new ultimate answer. Sometimes rather than fading, the thrilling discovery has a second life in checkout-line tabloids. A few of these items are hoaxes, some are merely consequences of over-enthusiasm about preliminary results, but many are honest mistakes carried to...

Spaced practice affects learning efficiency in humans and other animals. However, it is not well understood how spaced practice contributes to learning during development. Here, we show the behavioral significance of singing frequency in song development in a songbird, the zebra finch. Songbirds learn a complex song pattern by trial-and-error vocalizations as self-motivated practice, which is e...

Spaced seeds are important tools for similarity search in bioinformatics, and using several seeds together often significantly improves their performance. With existing approaches, however, for each seed we keep a separate linear-size data structure, either a hash table or a spaced suffix array (SSA). In this paper we show how to compress SSAs relative to normal suffix arrays (SAs) and still su...

^*3^The major purpo»e of this study was nft discover the influence of intraliit similarity and intertrial interval on retention of serial adjectives. With regard to retention as a function of intralist similarity, several studies (4, 6, 7, 8) indicate that while intralist similarity may influence rate of learning, it has no influence on recall taken 24 hr. following learning. As yet, however, n...

In the study of human learning, there is broad evidence that our ability to retain a piece of information improves with repeated exposure, and that it decays with delay since the last exposure. This plays a crucial role in the design of educational software, leading to a trade-off between teaching new material and reviewing what has already been taught. A common way to balance this trade-off is...