Several methods to limit the information disclosure exist today, such as access control lists, firewalls, and cryptography.

Several algorithms for performing such a transformation are known.

Several algorithms that preserve the uniformity property but require time proportional to n to compute the value of H ( z, n ) have been invented.

Several algorithms are freely available to solve knapsack problems, based on dynamic programming approach, branch and bound approach or hybridizations of both approaches.

Several algorithms exist for decoding convolutional codes.

* Several algorithms created by British mathematician John Pollard:

Several authors have therefore proposed algorithms which exploit the structure of the Vandermonde matrix to compute numerically stable solutions in operations instead of the required by Gaussian elimination.

Several learning algorithms, mostly unsupervised learning algorithms, aim at discovering better representations of the inputs provided during training.

Several algorithms are known for solving the 2-satisfiability problem ; the most efficient of them take linear time.

Several general-purpose algorithms and techniques have been developed for image segmentation.

Several papers have investigated the hardness of creating wait-free algorithms.

Several Monte-Carlo-based algorithms exist:

Several papers exist that propose algorithms for scatternet formation, and many different approaches have been simulated in both academic and corporate R & D environments.

Several useful algorithms such as that for determining experience costs have been either reverse-engineered or extracted from the released code by players, however, and can be generally found on various informational websites.

Several authors have investigated algorithms for testing whether a given matroid is graphic.

Several Web search ranking algorithms use link-based centrality metrics, including Google's PageRank, Kleinberg's HITS algorithm, the CheiRank and TrustRank algorithms.

Several simplifying assumptions are made while considering the development of algorithms for PRAM.

Several researchers have studied the complexity of exponential time algorithms restricted to cubic graphs.

Several important graph optimization problems are APX hard, meaning that, although they have approximation algorithms whose approximation ratio is bounded by a constant, they do not have polynomial time approximation schemes whose approximation ratio tends to 1 unless P = NP.

Several simple algorithms exist to construct a tree directly from pairwise distances, including UPGMA and neighbor joining ( NJ ), but these will not necessarily produce the best tree for the data.

Several algorithms have been proposed ( e. g., CGLS, LSQR ).

Several authors have studied the parameterized complexity of graph algorithms, parameterized by.

Several algorithms exist to provide an efficient way to determine string distance and specify the minimum number of transformation operations required.

Several organizations, such as the American Association of Variable Star Observers and Center for Backyard Astrophysics, exist to help coordinate these contributions.

Several of the dialects have been influenced by contact with non-Germanic linguistic groups, such as the dialect of Carinthia, where in the past many speakers were bilingual with Slovene, and the dialect of Vienna, which has been influenced by immigration during the Austro-Hungarian period, particularly from what is today the Czech Republic.

Several unusual applications, such as a nuclear battery or fuel for space ships with nuclear propulsion, have been proposed for the isotope < sup > 242m </ sup > Am, but they are as yet hindered by the scarcity and high price of this nuclear isomer.

Several biographical programs have been made, such as the 2004 BBC television programme entitled Agatha Christie: A Life in Pictures, in which she is portrayed by Olivia Williams, Anna Massey, and Bonnie Wright.

Several references to the god Abraxas appear in Hermann Hesse's 1919 novel, Demian, such as:

Several attempts to find a new home failed ; one such stop was on Sicily where in Drepanum, on the island's western coast, his father, Anchises, died peacefully.

Several cultivars are known, such as ' Albus ' ( with white flowers ), ' Sapphire ' ( dark blue flowers ), ' Aureus ' ( leaves striped with yellow ), and ' Variegatus ' ( leaves almost entirely white with a few green bands ).

Several people who spoke to Selkirk after his rescue ( such as Captain Rogers and the journalist Steele ) were impressed by the tranquillity of mind and vigour of the body that Selkirk had attained while on the island.

Several related flagellates, such as Perkinsus and Colpodella have structures similar to the polar ring and were formerly included here, but most appear to be closer relatives of the dinoflagellates.

Several new commercial Atari 7800 titles such as Beef Drop, B * nQ, Pac Man Collection, Combat 1990, Santa Simon, and Space War have been created and released.

Several modern approaches build on such continental European exemplars as Heidegger, and apply metaphysical results to the understanding of human psychology and the human condition generally ( notably in the Existentialist tradition ).

Several crashed airplanes and large equipment such as bulldozers are scattered around the island.

Several Eastern Bloc countries adopted trolleybus systems, and their manufacturers such as Trolza exported trolleybuses to other friendly states.

Several arboreal primate species, such as Gibbons and Indriids, exclusively utilise bipedal locomotion during the brief periods they spend on the ground.

( Several Labour ministers of later generations, such as Michael Foot and Tony Benn, were the sons of Liberal MPs.

Several other territorial claims such as Sipadan were resolved at The Hague international courts.

Several rating scales for the screening and evaluation of bipolar disorder exist, such as the Bipolar spectrum diagnostic scale.

Several of Canada's largest companies are based in natural resource industries, such as EnCana, Cameco, Goldcorp, and Barrick Gold.

Several contemporary bands have Welsh language songs, such as Ceredwen, which fuses traditional instruments with trip-hop beats, the Super Furry Animals, Fernhill, and so on ( see the Music of Wales article for more Welsh and Welsh-language bands ).

Several condensed matter experiments involve scattering of an experimental probe, such as X-ray and optical photons, neutrons etc., off constituents of a material.

Several languages of North America, such as Mohawk, lack both of the labials and.

Several brain imaging techniques, such as EEG and fMRI, have been used for physical measures of brain activity in these studies.

Several impact craters and massive volcanic activity, such as that in the Deccan Traps, have been dated to the approximate time of the extinction event.

Several churches, such as the Anabaptists and Socinians of the Reformation, then Seventh-day Adventist Church, Christadelphians, Jehovah's Witnesses, and theologians of different traditions reject the idea of the immortality of a non-physical soul as a vestige of Neoplatonism, and other pagan traditions.

Several serpentinite deposits are being investigated as potentially large scale CO < sub > 2 </ sub > storage sinks such as those found in NSW, Australia, where the first mineral carbonation pilot plant project is underway.