Learning Real-Time A* (LRTA*) is a real-time search method that makes decisions fast and still converges to a shortest path when it solves the same planning task repeatedly. In this paper, we propose new methods to speed up its convergence. We show that LRTA* often converges significantly faster when it breaks ties towards successors with smallest f-values (a la A*) and even faster when it move...

In this paper we characterise the distributions of the number of predecessors and of the number of successors of given set of vertices, A, in the random mapping model, T D̂ n , (see [10]) with exchangeable in-degree sequence (D̂1, D̂2, ..., D̂n). We show that the exact formulas for these distributions and their expected values can be given in terms of the distributions of simple functions of the in...

Reviewer Williamjames Hoffer explains that Segregating the New South "is an important contribution to history of South, Black America, and origins Jim Crow" convincingly challenges idea segregation began after Reconstruction, as otherwise argued by "C. Vann Woodward his successors."

Dutch words with certain final consonant clusters are subject to optional schwa epenthesis. The present research aimed at investigating how Dutch listeners deal with this type of phonological variation. By means of syllable monitoring experiments, it was investigated whether Dutch listeners process words with epenthetic schwa (e.g., ’balluk’) as bisyllabic words or rather as monosyllabic words....

Decision-theoretic control of search has previously used as its basic unit of com­ putation the generation and evaluation of a complete set of successors. Although this simplifies analysis. it results in some lost opportunities for pruning and satisficing. This paper therefore extends the analysis of the value of computation to cover in­ dividual successor evaluations. The ana­ lytic techniques...

Prevalence of double teeth in primary dentition of 0.5% was established in the sample of 2.987 preschool children of Zagreb. Between children with double teeth 60% were female and 40% males. Fusion ocurred in 66.7 percent and germination in 33.3 percent in the sample of children having double teeth. In all children with double teeth orthopantomograms were taken. Analysis of radiographs revealed...

In this paper, we investigate the extent to which techniques used in [8], [2], and [3] — developed to prove coloring theorems at successors of singular cardinals of uncountable cofinality — can be extended to cover the countable cofinality case.

We obtain strong coloring theorems at successors of singular cardinals from failures of certain instances of simultaneous reflection of stationary sets. Along the way, we establish new results in club-guessing and in the general theory of ideals.

We investigate the existence of strong colorings on successors of singular cardinals. This work continues Section 2 of [1], but now our emphasis is on finding colorings of pairs of ordinals, rather than colorings of finite sets of ordinals.

Consider a network of processes that exchange messages via FIFO communication channels. Each process chooses a subset of its neighboring processes to be its successors. Furthermore, there is a distinguished process, called root, that may be reached from any other process by following the successor relation at each hop. Thus, under the successor relation, the processes are arranged as a directed...