Thursday, November 28, 2019

Game Theory in Business Applications free essay sample

Nash equilibrium Now that we have realized that we have to move in a somewhat similar direction to the economists, maybe we should consult the experts of the game theory at this point. In the 1980s Axelrod and Hamilton worked on a famous problem in the game heory, the Prisoners Dilemma, exactly because it deals with this problem. The rational pursuit of individual self-interest drives everybody into an outcome that is not favored by anybody. Imagine two partners in a crime being interrogated at the same time. Each one has two options, cooperate with the other and keep quiet or betray the other and confess. Case C, we can say, is if both cooperate then the police cannot get much out of them and they will both get a light sentence (2 years); if one defects and the other keeps quiet then the traitor will get an even lighter sentence (1 ear) this is case B. We will write a custom essay sample on Game Theory in Business Applications or any similar topic specifically for you Do Not WasteYour Time HIRE WRITER Only 13.90 / page If the one who cooperates gets the longest sentence (10 years), this is the worst end of the deal and we can call this case S. In a case when both betray one another they will both get a sentence (6 years) longer than if they had cooperated but lighter than if one had kept quiet and the other spoke, and this is case D. Out of the four outcomes, B is the best and S is the worst from an individualistic point of view, while the order of preference is B, C, S, D. We should realize that this is a non-zero sum game. In a zero-sum game, my loss is your gain; for example, if we re trying to divide a certain amount of money in the bank into two, anything over fifty percent for me is a loss for you. On the other hand, in a non-zero sum game I can actually win without you losing. Each suspect has to make their decision without knowing what the other has done. What would a rational suspect do? The answer is simple; he would betray his partner in crime! Regardless of what the other suspect does, betrayal always pays better than cooperating. Here is the simple reasoning one would follow. Suppose my partner in crime cooperates. I could do quite well by also cooperating, I would get 2 years, (C). But it is even better to betray him, since I would then get 1 year instead of 2, (B). What if he betrays me? If I keep quiet then the worst is going to happen and I will get 10 years, (S), therefore I should defect and get 6 years, (D). In summary, all we are saying is that the second row in the chart is always more favorable than the first row, hence no matter what, a rational prisoner would always betray his partner! And here comes the dilemma: it pays each of them to defect, whatever the other one does, yet if both defect, each does less well than if both had cooperated. What is best or each individual leads to a mutual defection, while everybody would be better off Fortunately, the dilemma has a solution in our case. So far, we have only played the game once. What happens if the parties play the game repeatedly and for an indefinite number of times? After every single time they play they know that they are likely to meet again later. Under such conditions there is actually a cooperative strategy for the players that could be successful; this is a somewhat twisted version of the cooperation defined earlier in the prisoners dilemma case. First of all, we mmediately realize that always defecting is clearly not the smartest strategy, knowing that you will meet the other individual again in the future. Instead, consider this natural strategy, called Tit for Tat, which is never to be the first to defect, always imitate the other from his previous move and retaliate only when you have been betrayed. It turns out that this highly cooperative strategy can survive, even though initially it withstands the challenges of readily defecting strategies. And it can be stable against diminishing altogether. In order for this Tit for Tat strategy to have a chance to work, a critical proportion of he individuals have to cooperate. Otherwise the readily defective strategies would simply destroy the cooperative ones and dominate the whole system. But once the number of individuals who adopt a Tit for Tat strategy exceeds a critical ratio in the population then it survives and reaches a stable ratio able to withstand any other strategy. Axelrods theory is nice and easy to understand, but once again it prompts all sorts of other issues. How frequently the population is able to reach that critical level in the first place? On the other hand, what kind of a memory do individuals need in order to e able to execute a Tit for Tat strategy? What do we make of it? We could keep working on expanding these explanations and models, or at least the biologists should. But in any case, in order for any of these models to apply in what we see in nature we have to be demanding of the individuals who form the population. Every single time we come up with a new approach or an extended model it is difficult to explain many of the characteristics of altruistic behavior, even in idealized cases. Either there must be altruistic genes that can recognize the other altruistic genes carried in other individuals, or we all individuals have a well- eveloped memory that actually remembers all the moves that have been made by other individuals in the population, or one starts from an idealistic state in order to maintain the stability of the system without knowing how we are able to get there in the first place. It seems that the smarter we get, the better our theories are developed, and the more flawless our models become, the more we realize that all the individuals in the great ecosystem of nature that show some kind of altruistic behavior must have a great about the whole picture and they must have an authority that has a great impact on others, on and on and on.

Sunday, November 24, 2019

10 Useful Apps You’re Not Using That You Need to Download

10 Useful Apps You’re Not Using That You Need to Download You’re already tethered to your smartphone, why not start making the best of it? You might think you know everything there is to know about your phone, and possibly that it knows everything it needs to know about you, but there are still plenty of ways it can surprise you- and even help to make your work and play run that much more smoothly. Here are a few amazing apps you may have overlooked. Check out some of these hidden gems to unlock even more potential in your person-to-smartphone relationship.1. ClipsFree! Like the idea of Snapchat sometimes, but can’t commit? Apple’s Clips lets you shoot still and video shots with wacky filters. Add in Live Titles, which are subtitles you create simply by speaking, and you’re in business. It’s Snapchat for grown-ups and the terminally ironic.2. ProshotWant to improve your photography skills? No matter your skill level, this app can help you unlock advanced features in your device to help you take higher qual ity photos with better focus and light.3. GoodlookNever know what to wear? Keep up with the trends with daily looks and useful fashion and beauty tips. Figure out what to shop for and how to combine the clothing you already have to stay on trend.4. Remote MouseTurn your phone into a remote for your computer. Say your keyboard is low on battery, but you want to watch a movie or give a presentation? No problem!5. App DetoxWe all have that app- or those 10  apps- that eat up all of our time. Android users, you’re in luck. This app helps you distance yourself from your smart phone by blocking access to certain apps for a time period of your choosing. Very useful when you need to study or work and can’t be checking Twitter every five minutes.6. Moleskine TimepageLove having everything on your device, but miss the stylish days of your old Moleskine planner? Now you can have it all. A smart calendar/planner that is as stylish as it is functional and sexier than its counterp arts. Works with existing calendars like iCloud, Facebook, and Google.7. Just Press RecordNot impressed with Voice Memos anymore? Try this one-tap recording app that works across Apple products and even boasts built-in transcription for note taking- in multiple languages. You can even search your recordings for specific terms. You’re welcome.8. PatronusA personal security app named after a spell in Harry Potter? Yes please. With mobile 911 service (much more accurate than cell tower locations!) and location sharing, plus an â€Å"On My Way† feature that lets you share your location, destination, and progress with your contacts. It takes a village!9. SignalMove to fully encrypted communication in this scary world. WhatsApp is a bit behind the ball on this, so go straight to the source with Signal. It’s free all-in-one messaging with voice call functionality. You can even send media with the same protections. This one is very easy to use and is open source.10. Cla p! Phone FinderLose your phone a lot, only to find it by your toaster where you left it? This combines the find-your-phone technology with the old clap-on-clap-off satisfaction. Simply clap your hands to activate your phone to produce a customizable sound. Bonus? This app consumes very low amounts of battery power, so it won’t drain you while it runs.

Thursday, November 21, 2019

Semantic Web + Parallel Distributed data Research Paper

Semantic Web + Parallel Distributed data - Research Paper Example In tally, the Semantic Web is devoted to offering an info distribution model and platform that is suitable for both machine and human to comprehend and collaborate. Cognitive web search engines are one of the introductory structures that permit processor PC systems to spontaneously become intuitive and artificial intelligent over Semantic Web data conferring to some implication rules. Diverse neurodata sources and warehouses commonly use diverse data models and stock heterogeneous data. In the dynamic data federation method this is addressed concurrently to the glitches of data basis heterogeneity and data delivery. It depends on on the central federator, and a set of data suppliers. Given an exceptional inquiry, the federator is accountable for the intelligible sub-querying of the confederated data sources and for uniting all outcomes originated into a universal outcome set. This evades dependability and harmonization or synchronization subjects commonly witnessed in data stores whe re data alteration is done sporadically. Another related research associated to semantic web language includes is the active use of programmes algorithms which focus on the principle of the algorithms comprising of iterating codes over and over each in the design forming a triple pattern in the initial SPARQL query. Subsequently, The World Wide Web Consortium (W3C) has commended and normalized an amount of codes or values, web languages, and programmable web frameworks and the best performances which permit and allow the communication between the numerous metadata into a more understandable format for the next-generation web, that is, the Semantic Web. As a researcher, the assumption that the programmers have a comprehensive control over the machines in which the data is handled, then one is able to manipulate the queries and offer a commendable output on in iterative and interactive end user interface for examination and conclusion. Ultimately, the distribution and querying of data storage using high data base schemas is an appropriate approach towards implementing essential management of distributed semantic web data. Numerous semantic web requests need the incorporation of records from dispersed, independent databases. Pending to recent techniques it was relatively problematic to access and request for data in such a scenario since there was no customary request semantic or machine interface. The introduction of the SPARQL, and the W3C school endorsement for an RDF query semantic and procedure, this condition has altered. It is now conceivable to brand RDF data obtainable and accessible over a normal PC interface and request for it by means of a customary query semantic. The data does not require to be kept in RDF but can be generated on other interactive databanks. On the other hand, DARQ suggests a sole interface for enquiring on the numerous, dispersed SPARQL end-points and varies inquiry confederacy to the customer. A unique important characteristic of DARQ is that it exclusively depends on the SPARQL custom configuration and consequently is well-matched to several SPARQL endpoints applying this standard. Utilizing facility images delivers an influential way to enthusiastically add and remove endpoints to the inquiry engine in a way that is totally translucent to the end user. To decrease performance costs we present straightforward inquiry optimization for SPARQL inquiries. The web has developed a major automobile in executing research and instruction related