Then, an on demand routing algorithm (OQRA) (Algorithm 2) activates when there is an incoming request with QoS requirements to find the path that satisfies QoS constraints from these
precomputed paths.
Superscripts indicate the algorithm used, namely, fully
precomputed matrices (e), direct evaluation of matrix-vector products (d) and FMM-accelerated evaluation of matrix-vector products (f).
As they do not depend on [eta] or [tau], the keys can also be
precomputed. The algorithm is based on the Feistel network, whereby the secret key is first divided into two halves, [kappa] = [k.sub.1] [paragraph] [k.sub.0] x [k.sub.0] and [k.sub.1] are then XOR-ed into two registers that have initial values of [reg.sub.0] = f492e42164c7fb0d and [reg.sub.1] = f683d0ad038f17d.
Thus [PSI] is also constant over time, and it can be
precomputed. The above equation shows that, as in the generalized displacement in Eq.
The rules for part-of-speech tagging are heavily influenced by
precomputed word lists (lexicons) in which words are associated with parts of speech derived from a large corpus of annotated textual data.
As noted earlier, paths can be viewed as
precomputed joins.
The constant scaling factor K is fixed and can be
precomputed as long as the precision N is determined.
The efficiency of the scheme is only affected by one extra pairing operation that can be
precomputed at the Extract stage for each user, therefore does not incur additional cost to the protocol itself.
Another research aim is the development of
precomputed informative and admissible estimates for explicit and symbolic search based on heuristic pattern databases.
But not observe that entering all the possible responses (schedules) into the computer by hand would require an extremely large amount of data space and a relatively small lookup computation; automating the response construction process would instead require much more computation and (in extreme0 no data space for storing
precomputed responses, only some data to enable the response construction--data we might like to call "the domain model." From there, the time required to construct responses might be reduced by storing some "search control knowledge" (space).
In the indirect approach, the knots are not initially the subject of optimization but
precomputed with a coarse approximation scheme, which will be further improved at a later stage.
In addition, if the values e([g.sub.1], [g.sub.2])and e([T.sub.1], [g.sub.2]) can be
precomputed and cached, so no pairing computations are needed at the phase of Threshold Encryption.
