problem with too many options

... Recall In fact if tn is large with respect to both rp and pp, and thus with respect to components tp, fp and fn, then both tn/pn and tn/rn approach as tn increases without bound As discussed earlier, ... benefit AUC is the area under the curve joining the systems with straight edges and AUCH is the area under the convex hull where points within it are ignored The height above the chance line of ... replace AUC by AUK corresponds to a Cohen Kappa reweighting of ROC that eliminates many of its useful properties, without any expectation that the measure, as an integration across a surrogate cost

Ngày tải lên: 22/02/2014, 02:20

... Too Many Cases, Too Many Deaths: Lung Cancer in African Americans Too Many Cases, Too Many Deaths: Lung Cancer in African Americans Disparities ... time and even cure lung cancer 15 Too Many Cases, Too Many Deaths: Lung Cancer in African. .. R 17 Too Many Cases, Too Many Deaths: Lung Cancer in African ... work with it rather than really have a concern as less supportive, less partnering against it in treatment for me, personally, and my well-being.” – Michael R 13 Too Many Cases, Too Many

Ngày tải lên: 15/03/2014, 01:20

... three-body problem with various choices of masses By Kuo-Chang Chen Annals of Mathematics, 167 (2008), 325–348 Existence and minimizing properties of retrograde orbits to the three-body problem ... minimizing methods useful for the N-body problem? Concerning this question, Chenciner- Venturelli [8] constructed the “hip-hop” orbit for the four-body problem with equal masses and, a few months ... masses are identical? This article is concerned with variational methods on the existence of certain types of solutions to the planar three-body problem with various choices of masses. There is a

Ngày tải lên: 29/03/2014, 07:20

... Publishing Corporation Boundary Value Problems Volume 2011, Article ID 569191, 13 pages doi:10.1155/2011/569191 Research Article A Fourth-Order Boundary Value Problem with One-Sided Nagumo Condition ... every solution u t of problems 1.1 and 1.2 with u ≤ ρ, u ≥ −ρ, γi t ≤ u i t ≤ Γi t , for i 0, 1, and every t ∈ 0, , one has u ∞ 2.7 2.8 < R Proof Let u be a solution of problems 1.1 and 1.2 such ... and location results for problems 1.1 and 1.2 can be obtained Boundary Value Problems Theorem 3.1 Suppose that there exist lower and upper functions α t and β t of problems 1.1 and 1.2 , respectively

Ngày tải lên: 21/06/2014, 05:20

... Corporation Boundary Value Problems Volume 2011, Article ID 827510, 15 pages doi:10.1155/2011/827510 Research Article Positive Solutions for Integral Boundary Value Problem with φ-Laplacian Operator ... boundary value problem, ” Nonlinear Analysis: Theory, Methods & Applications, vol 69, no 11, pp 3910–3918, 2008 9 L Kong, “Second order singular boundary value problems with integral ... value problems,” Applied Mathematics and Computation, vol 187, no 2, pp 1315–1325, 2007 5 H Feng, W Ge, and M Jiang, “Multiple positive solutions for m-point boundary- value problems with.

Ngày tải lên: 21/06/2014, 05:20

... Corporation Boundary Value Problems Volume 2011, Article ID 416416, 15 pages doi:10.1155/2011/416416 Research Article Existence of Solutions to a Nonlocal Boundary Value Problem with Nonlinear Growth ... nondecreasing function with g00. In boundary conditions 1.2, the integral is meant in the Riemann-Stieltjes sense. 2 Boundary Value Problems We say that BVP 1.1, 1.2 is a problem at resonance, ... t   0,t∈  0, 1  , 1.3 with the boundary condition 1.2 has nontrivial solutions. Otherwise, we call them a problem at nonresonance. Nonlocal boundary value problems were first considered

Ngày tải lên: 21/06/2014, 11:20

... mathematical problems with variable exponent growth condition has been received considerable attention in recent years These problems are interesting in applications and raise many difficult mathematical problems ... equations and the corresponding variational problems Since many free boundary problems and obstacle problems may be reduced to partial differential equations with discontinuous nonlinearities, the ... soon Existence of solutions for a differential inclusion problem with singular coefficients involving the $p(x)$-Laplacian Boundary Value Problems 2012, 2012:11 doi:10.1186/1687-2770-2012-11 Guowei

Ngày tải lên: 21/06/2014, 17:20

... Lidstone problem with parameters,” Applied ´ Mathematics and Computation, vol 214, no 2, pp 523–533, 2009 12 T He and Y Su, “On discrete fourth-order boundary value problems with three ... existence and multiplicity of positive solutions of fourth-order problem, for example, 8–10,andin particular the discrete problem with Lidstone boundary conditions 11–17. However, very little ... with Applications, vol 59, no 1, pp 532–538, 2010 19 C B Zhai, W X Wang,... Introduction with Applications, Academic Press, Boston, Mass, USA, 1991 6 J Yu and Z Guo, “On boundary value problems

Ngày tải lên: 21/06/2014, 18:20

... boundary value problem with p-Laplacian on time scales. By using the well-known Krasnosel’ski’s fixed- point theorem, some new existence criteria for positive solutions of the boundary value problem ... motivated by the wide application of boundary value problems in physical and applied mathematics, boundary value problems for dynamic equations with p-Laplacian on time scales have received lots ... doi:10.1155/2009/312058 Research Article Existence of Positive Solutions for Multipoint Boundary Value Problem with p-Laplacian on Time Scales Meng Zhang, 1 Shurong Sun, 1 and Zhenlai Han 1, 2 1 School of

Ngày tải lên: 21/06/2014, 20:20

... M-partition problems with small matrices M ; for instance if we consider M-partitions with lists, one such problem with m = 4 is described in [4]; see also [10, 25]. Each M-partition problem can ... questions on the descriptive and computational complexity of matrix partition problems. 1 Introduction Many graph partition problems (especially those arising from the study of perfect graphs [6, 7, ... ∗, then the C m -partition problem asks whether or not the graph G is m-colourable, in the usual sense. Many other examples are described in [16, 25, 27]; they include problems such as H-colourability

Ngày tải lên: 07/08/2014, 15:22

... with the... underperformance! Options are a misunderstood investment tool Options were designed to reduce investment risk, but too many investment advisors tell their customers that options ... the record and examine how well... unfamiliar with stock options, you’ll see how to adopt either (or a combination) of two conservative options strategies to help you enhance your stock ... the fact (many do not) that it’s difficult to beat the market averages, here’s a method that greatly increases your chances to do so If you love trading and want to be involved with the

Ngày tải lên: 10/08/2014, 07:21

... derivative products, such as options and futures, and have the ability... investment portfolio provides you with many of the benefits of investing in a hedge fund, but without having to pay ... do not beat the market.” 15 Many individual investors make their investment decisions on their own, without the comfort of being able to discuss those selections with other investment club members. ... YOU ARE UNLIKELY TO BEAT THE MARKET Beating the market is a difficult task. With so many individual investors and so many professional money managers trying, the laws of probability tell us that

Ngày tải lên: 10/08/2014, 07:21

... understand how options work and how you can use them intelligently to achieve your investment goals Many texts devoted to options are available for readers who want a more complete options ... Does an Option Work? f you are unfamiliar with options, you will not be left behind We’ll begin our discussion with the most basic concepts of options, ... shares of various ETFs DIVERSIFICATION ... most serious problem with mutual funds is their under- performance. Much could be forgiven if the managers were able to provide outstanding investment results for their clients. Many investors

Ngày tải lên: 10/08/2014, 07:21

... time. Unfortu- nately, options also can be used for risky propositions. Far too many op- tions novices learn to use options only as tools for speculation. That’s why so many people have negative ... as easily as stock. Trading options on an exchange began with the listing of call options on 16 stocks at the Chicago Board Options Exchange. Today there are six options exchanges in the United ... options on individual stocks in April 1973, it revolutionized the way options were traded. Previously, trading in puts and calls was haphazard, with brokers and dealers advertising specific options

Ngày tải lên: 10/08/2014, 07:21

... Expiration Month As with writing covered call options, selling near-term options allows you the opportunity to earn the highest annualized profits Writing options with more time remaining ... (70.4 percent annualized). STRATEGY 4: WRITING OPTIONS WITH MORE DISTANT EXPIRATION DATES This strategy is more conservative than writing options with shorter expi- rations because you receive ... downside. Remember, options with more time remaining until expiration are worth more and trade for higher prices than shorter-term options. You can combine this technique with writing either

Ngày tải lên: 10/08/2014, 07:21

... (compared with buy and hold) when you write uncovered put options (or covered call options). An investor who buys 1,000 shares of stock at $20 per share is investing $20,000. When you write 10 put options ... careless decisions and find themselves in trouble. This occurs when investors sell too many put options. Investors with $20,000 to invest know that $20,000 is the maximum possible loss (un- less ... risk with adopting a strategy of writing uncovered put op- tions for unwary investors is not the strategy itself, but their inability to rec- ognize that it is easy to sell too many put options.

Ngày tải lên: 10/08/2014, 07:21

... significant profits from writing options and to gain some insurance against loss? Then you want to write at-the-money (ATM) and/or in-the-money (ITM) options and occasionally options that are slightly ... choice of selling a call option with strike prices ranging from 36 to 44, in 1-point in- crements. How do you determine which to sell? Options are always available with at least four different expiration ... style—after you discover what it is. DETERMINE YOUR INVESTMENT OBJECTIVE If you invest without writing any covered call options, your potential gains are unlimited and you own your investments unhedged.

Ngày tải lên: 10/08/2014, 07:21

... Thus, I’ll stay with writing options that are at the money for domestic in- vestments and one point out of the money for my foreign holdings. The high prices present another problem. I no longer ... downward move is without conviction, and January expiration arrives with the market losing less than one-half of 1 percent for... all your positions As you become more acquainted with writing ... new call options against them I now own 200 IWM shares, so I have two call options to write Because I want a position representing 400 shares and because I prefer to write put options,

Ngày tải lên: 10/08/2014, 07:21

... Standardization of options Establishing consistent and predictable expiration dates and strike prices for options Options became standardized when the Chicago Board Options Exchange (CBOE) ... three months, when the market has declined in value. I’m pleased with my performance. I plan to continue writing uncovered put options and switching to covered call writing if and when I am assigned ... strategy provides a constant income stream. Coupled with covered call writing, this strategy allows you to op- erate your own hedge fund—providing you with reduced risk and an in- creased chance of

Ngày tải lên: 10/08/2014, 07:21

... interest to many researchers. It is well known that optimal control problems with continuous variables can be transferred to discrete optimal control problems by discretization. There have been many ... Control Problem with Mixed Constraints --Manuscript Draft-Manuscript Number: JOGO-D-14-00359 Full Title: Second-Order Necessary Optimality Conditions for a Discrete Optimal Control Problem with ... the discrete optimal control problems in the case where objective functions are nonconvex and mixed constraints. There are many open problems related to this research topic. Some problems are stated directly

Ngày tải lên: 14/10/2015, 08:39