วันอังคารที่ 31 สิงหาคม พ.ศ. 2553

Hunter Training Map

Mostly made for my friends. The captions are all jokes, completely. It didn't feel right to just have a montage so i added some funny things. Read the captions, watch the video, or do both, i believe all choices are enjoyable Song is Intervention by Logistics

วันอาทิตย์ที่ 29 สิงหาคม พ.ศ. 2553

The linear regression analysis - three reasons why researchers in psychology, regression, ANOVA should know


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Back when I was doing research in psychology, I knew ANOVA. I had a series of courses that is done, and you could run back and forth. I heard ANCOVA, ANOVA, but in any class that the last argument was about the curriculum, and we are always short of time.

The other thing that drove me crazy was the statistics professors always said, "ANOVA is a special case of regression." I could not for the life of me understand how or why.

Not beforeI turned on the statistics, I finally found a class of regression and found that everything was ANCOVA. And only when I started consulting, and see hundreds of different models of regression and ANOVA finally got the connection.

But if you're not driving curiosity ANOVA and regression, regression want to know why you should, as a researcher in psychology, education or agriculture, which forms in ANOVA? There are three main reasons.

There is a firstmany, many variables and continuous independent covariates should be included in the models. Without the tools to analyze as continuous, have left, forcing the shares ANOVA with any technology, as the median. At best, it is losing power. At worst, you are publishing your article because you are missing a real impact.

According After a solid understanding of the general linear model in its various forms equipped to truly understand the variablesand their relationships. It allows to model a different way - I try not fishing data, but in uncovering the true nature of the relationship. Having the ability to interact a term or a term add to the square allows you to hear your data and makes you a better researcher.

The third multiple linear regression model is the basis for many other statistical methods - logistic regression, multilevel models and mixed Poisson regression, survival analysis,and so on. Each of these represents a step (or smaller jump) on multiple regression. If you have problems with what variables or interactions at the center means to interpret the learning of a These other techniques is difficult, if not painful.

Have thousands of researchers led to their statistical analysis of the last 10 years, I am convinced that a strong intuitive understanding of the general linear model in its variety of forms, the key is not only asafe and effective statistical analyst. You are then free to learn and explore other methods if necessary.

วันเสาร์ที่ 28 สิงหาคม พ.ศ. 2553

Ships from Dubai


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Dubai is a booming market and is one of the main shopping centers in the world. It has access to markets outside the Middle East, as the Gulf States, CIS, East Africa and the Asian subcontinent. The domestic market has also established trade relations with prosperous AGCC, Iran and other developing countries. port facilities in Dubai and the airport in terms of size, flexibility and efficiency are the best in the region.

The shipment of Dubai and the transport sector is veryAdvanced with major shippers, shipping companies and insurance companies in the world, with their bases here. All this provides the right impetus to the shipment of Dubai.

The other side of Dubai Creek Dhow managed traffic. A sailing vessel with one or more traditional triangular sail known as dhows. These vessels are mainly used by local local traders in the Arabian Peninsula, India and East Africa. In previous days, using dhows, to make business trips betweenthe Persian Gulf and East Africa on the charge is mostly dates, fish and mangrove wood. With the advent of modern transport ships from Dubai has changed course and the use of dhows was limited.

Dubai currently has several commercial ports by Dubai Creek is primarily used by local merchants. Mina Rashid is a man of commercial deep sea port and is popularly called, Port Rashid. It complements the port of Jebel Ali passenger and ro-ro facilities. InThere is also a tool for dry dock in the Persian Gulf, the only in the region. And 'adjacent to the port of Mina Rashid. With all of these bodies transit in Dubai has become very convenient.

The port of Jebel Ali, which is about thirty-five kilometers from Dubai as the largest artificial harbor in the world. It also houses the largest port in the Middle East, bordering the Jebel Ali Free Zone is an industrial area known for its offshore business. Jebel AliInternational Airport is built in this area.

Recently, shipping from Dubai is very promising, with facilities such as Dubai and ship chartering aircraft, ship brokering, project forwarding and transport heavy loads. You can also self-propelled semi-submersible vessels, cargo ships, tugs, barges, landing craft, ships, etc. provide shipping lines in Dubai, specializing in services such as business, ship management, stock board, professional agenciesServices, etc.

วันพฤหัสบดีที่ 26 สิงหาคม พ.ศ. 2553

"Armed Serenity 2008" by Nutnfancy, Part 1

PART 1 of 2: A tactical shoot with Nutnfancy and friends out in 15º to 20ºF snowy conditions at a Law Enforcement range, western US. This shows the nuts and bolts behind my synopsis video Armed Serenity. Putting a shoot like this together is a lot of work requiring much attention to detail (especially in these conditions), safety, logistics, clothing, tactical gear, and consideration for various experience levels. Primary purpose was to have fun with friends and to make a good memory with them. The secondary purpose give exposure to combat-oriented shooting to reveal weaknesses in technique and systems so they can be improved. The course of fire is representative of many other goods ones that are run at this excellent range. As shown, the course consists of 3 rds shot at each of two bad guys targets in the kneeling and standing positions. These shots are taken after a run at 50, 25, 15, and then walking 7 to 3 yards. Video covers more specifics. The cold conditions and bad ammo choked some 10/22s but time was short so we had no time to troubleshoot; we just transitioned to our tactical carbines. Scoring system was simplified later (see Part 2) and is a necessary part of the course: competition, running, and timing all help build some beneficial stress levels for practice (and it makes it funner!). The result was excellent carbine training that rewarded speed and accuracy. Goal was to achieve the lowest time for the shoot. Any shots outside of the humanoid bowling pin kill ...

วันพุธที่ 25 สิงหาคม พ.ศ. 2553

Internet and World Wide Web Money Making (alternative source of income)


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opportunities of the Internet to make money, many new Internet users that make money, confused by it. Because of the global financial crisis, a lot of people are seeking alternative sources of income and I think they are right. largest Internet market, where many shops are such a transaction took place, has become the focal point of alternative sources of income.

Well, a lot of people desire to alternative online blow ResortMake money, but given the fact that they are beginners, they receive from others that they "get rich quick" products and will end up deceived and therefore losing money .. Their precious cheated

I am with this article, to tell you that there is no get rich quick order over the Internet. I mean, how rich the fastest way to start, "the money in 24 hours, two hours and the animals of the genus. Who offers a product rich quick is only with the intention of deceiving you, because II was a victim ..

The concept of making money on the World Wide Web requires patience, time, effort and consistency. What I mean by that? Consider an example. Suppose someone wants a computer to open the city Accessories Store, first, he / she will work hard to put a rental shop somewhere in town, supplies PC shop and other logistics to put together and use the store opened. Remember, at this stage is not expected to lead (people come to askComputer accessories).

Then secondly, it / see and a good display media to create a new computer, opened the shop in town .. write

Thirdly, start time, turnover, because he wants to watch ads leads converted, which in turn can be converted into sales. Now, with this analysis, you may find that such a process can take months and even years to store the presence of these computer accessories in the city felt the decision. Itrequires patience and time ..

From the above, you may find that those who have made it on the Internet that is never reached in a day or two. As the popular saying "Rome was not built in a day." I wish all those who want to succeed online or use the Internet for an alternative source of income generation to always remember that online fraud worldwide. They fill their Web sites covered with sugar, attract and deceive just words. Learn to succeed online the right wayand you will not regret all the tips of your actions. The truth remains that we certainly have everything online for real money, but came to be careful and cautious because many of those who want the easy money to enrich others have done.

Now that you have read this, I like to say that the Internet is to investigate money concept in fact your time and energy on the Internet and learned from it. Sometimes, busy, depending on the type of Internet activity, moneyare required of you. Could be to design a service, advertising, or the registration of a merchant. As I said, everything depends on the type of Internet activity you are working inside But for those looking for income alternatives to complete bare Their wages, I would like advice, stuck as I call it "The Free Internet Business Money" does not require start-up costs. I will talk about this on my next article ..

So be wise and not lose value when you try to get moneymore.

วันอังคารที่ 24 สิงหาคม พ.ศ. 2553

Study International Shipping - Ocean Cargo container shipments

Ocean shipping, international transportation, study courses at South San Francisco Adult education center. South San Francisco, Ca Classes start last week of Aug 2009. Check the school website for details: www.ssfusd.org Instructor: Emilio Milian, limited seating capacity, sign up early to reserve your space. Get valuable work skills and get certification in one semester. Please subscribe now to see more videos like this one.

วันจันทร์ที่ 23 สิงหาคม พ.ศ. 2553

What is rated the number one antivirus? - My personal choice


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Nothing can be annoying for the owner of an affected computer, such as its system by a virus. Apart from harassment, viruses can damage important files in your PC. Some people do not take seriously the viruses before they hit. Big mistake. Someone whose PC was hit by a terrible virus will tell you how difficult it is to clean that malware can not. This is why it is very important to install anti-virus software on your computer. If you're always online andDownload files from the internet then the more reason you should have an anti-virus.

When choosing an anti-virus, but you should always go for an estimated number Antivirus. First steps of a mediocre antivirus program is only a waste of computer resources do not make money if you paid for this to be mentioned. There are anti-virus programs to make available that you think you will be protected from malware, but in reality is only a sign to give defense. Then there are anti-virus programs, embracesall the computers on which other programs, such as a resistance. For me, the best anti-virus program, which offers the best protection, but is efficient when it comes to the use of PC resources.

There are countless anti-virus programs that is already taken. I tried Norton is one of the most common. Norton is good when it comes to protecting it, but I personally find annoying. We tend to block all programs on your computer.I also tried that is really a Spy Sweeper anti-spyware more than one Anti-Virus.

So what for me is the number one rated Anti-virus? There is nothing that the Kaspersky Anti-Virus. In tests I've done, they removed the highest number of viruses. It 'also the least irritating and consumes very little computer resources.

I am very happy with Kaspersky and I do not think that I use once again the anti-virus, if not something better.

วันอาทิตย์ที่ 22 สิงหาคม พ.ศ. 2553

World At War: Pacific 2 of 5

This is the 23rd segment in an exhaustive series covering the events of World War II. Much of the Pacific theater of the war has been largely neglected, though the battles fought here were usually a logistics nightmare and nearly all resulted in the loss of thousands in mere days. The Japanese were turned back from Australia in 1942, failing to get a foothold on the mainland. It then fell mainly to the American forces to island-hop, chasing the Japanese back to their own territory. The fighting conducted by the Marine Corps during this period was some of the most brutal of World War II.

วันเสาร์ที่ 21 สิงหาคม พ.ศ. 2553

วันพฤหัสบดีที่ 19 สิงหาคม พ.ศ. 2553

Unions demand DHL respect its workers' rights

UNI Global Union and the International Transport Workers' Federation are demanding Deutsche Post DHL respect workers rights, including their right to unionise and bargain collectively. You can find more information at: www.respect4workers.org

วันพุธที่ 18 สิงหาคม พ.ศ. 2553

OPENBOX films Showreel '09

WEBSITE: www.openboxfilms.com *ignore the imagine films logo at the beginning, i am now openbox films.* just put a couple videos together that i have made in the past. it messed up when i tried to export it so it might jitter or skip a few frames time to time. anyways hope you enjoy :) music: Cosmonaut by Logistics editing: Antoine Dutilh special thanks to the following for being plain awesome :D - - www.youtube.com - www.youtube.com - www.youtube.com - www.youtube.com - www.youtube.com - www.youtube.com - www.youtube.com - www.youtube.com (sorry if I've missed you out)

วันอังคารที่ 17 สิงหาคม พ.ศ. 2553

SC Storage No1 Storage in Hong Kong

SC Logistics Co Ltd, the largest mini storage supplier in Hong Kong

วันจันทร์ที่ 16 สิงหาคม พ.ศ. 2553

kibo :Japanese Flag in JLP

Japanese Logistics Module - Pressurized Section (JLP) The JLP is the first component of the Japan Aerospace Exploration Agency's Kibo laboratory.

วันอาทิตย์ที่ 15 สิงหาคม พ.ศ. 2553

Arsenal of Democracy Teaser Trailer

Buy the game here: www.gamersgate.com Developed by BL-Logic, a development studio made up by fans of the Hearts of Iron series and active member of the modding community, Arsenal of Democracy is the ultimate World War II simulation and is described by Project Leader Lennart Berg as Hearts of Iron II on steroids! Features * Increased resolution and windowed mode freely selectable * Totally reworked combat mechanics, new missions and realistic combat behavior and losses * Several new technologies * New espionage interface and reworked espionage system * One of the most detailed economy and production system found in any Hearts of Iron game * Realistic logistics system * Everything is moddable * AI reworked and now poses a genuine threat, even to experienced players * 4 new battle scenarios Read more on the Arsenal of Democracy webpage: www.aodgame.com

วันศุกร์ที่ 13 สิงหาคม พ.ศ. 2553

TL Logistics Software - How does it compare with Third Party Logistics?


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If your business is at the point that it ships the goods sufficient to qualify for truck (TL) shipping costs to Achieve the optimal transportation system management trucks should be carefully examined, starting with what should logistics option you choose. In many cases, companies have three basic options for the application of logistics for the shipping process: setting a house of experts in logistics, contracting with a third party logistics (3PL) provider of software implementation or TL- Also logisticsknown as truck logistics software.

If the company feels like other shippers, it would probably prefer their situation of logistics experts. But if you a $ 70,000 - $ 90,000 to pay your salary is not acceptable, then a contract with a provider of solutions for 3PL TL -Express Implementation of logistics software options are more accessible.

To understand what you get when you hire a 3PL provider, helps to distinguish the four types of 3PL providers: Standard 3PLProviders that offer basic services and usually do not have 3PL 3PL as Their most important function, the developers of services that offer a range of specialized services as standard 3PL Provider; developers who manage the client companies of the entire shipment process, but not to propose innovative solutions for customers shipping and adapters to control a business process and to propose innovative solutions Express.

If you were just looking for solutions TL Express, setting a standard 3PLService provider or developer would be the cheapest option. However, these types of providers are Usually held with its customers that air carriers third party logistics providers offer a reduced price, That made their customers at a speed that is more useful.

If you think that this scenario may seem disingenuous, it is, especially since it puts the interest of providers above the customer so that a customer has little chance of achieving optimalTruck Express solutions, because it changes the advertiser first. TL logistics software, however, removes this situation by an expert working and logistics enables logistics providers have become their own.

As a logistics expert and a client adapter software evaluates all aspects of truck-Express-process (eg, path analysis and optimization, optimization of freight, payment terms, etc.) and providesCompanies with a list of shipping options that rank can be selected through a user-friendly interface. If cost is an important objective in business process provides for the delivery of software logistics costs of a dual approach: cover negates the need to outsource logistics and express delivery solutions that offer the best price for your shipping needs .

วันพฤหัสบดีที่ 12 สิงหาคม พ.ศ. 2553

Nu Tone feat Logistics - Warriors

Nu Tone feat Logistics - Warriors.

วันพุธที่ 11 สิงหาคม พ.ศ. 2553

CNC Tutorials


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CNC became very popular not only as an hobby, but a business to explore and invest. For this reason many designs on CNC machines in use after working on the fun and adventure, you gain, offers a great comfort to him simply, as they say. It can be confusing at first, but all things are difficult, if it is the first time, be exposed to such technical progress.

But how to acquire knowledge and continuous information onfacts relating to CNC, handling and use of machines will now be easier and more comfortable.

A Computer Numerical Control Project is normally the following:

Others Design - this is the first thing to do. This thinking and planning of the facility or to produce what you have desired product.

b. CAD - software to design your project, your computer must be translated.

c. CAM - CAD is what convertsmachine language.

d. Control - This is the only and provides instructions for the machine motion.

e. development - that is where the building is done the part that will be procured on the basis of CAD / CAM.

These five elements are the bricks of the CNC project that you can not take the next step without passing the previous methods. For example, can not, without the use of CAM softwareFirst, the CAD is the product of the CAD software that is used by the CAM software.

CNC drills are usually available via the World Wide Web with the use of exercises on the Internet to save time, money and effort, not because the need for the visit and tutorials can easily take the lessons back to where you left off. CNC comes with a tutorial online magazines, training, and other visual materials.

There areSome CNC training and seminars, where qualified technicians and operators of some companies are those that provide lessons and hands-on, the students learn more about how to operate the CNC machines. "

วันอังคารที่ 10 สิงหาคม พ.ศ. 2553

Swift and Shift Couriers - Sexy Package 3/3

Swift and Shift Couriers Episode 4 Part 3 Sexy Package Swift and Shift gets new efficiency managers, Damien (Nick Godsell) and Karen (Nicola Parry), who change the computer and logistics system. Unfortunately the system crashes and shuts down the depot. The only courier working is Mario (Paul Fenech) who has to deliver a realistic looking sex doll to a farmer in a small bumpkin town called Gallops Crossing.

วันจันทร์ที่ 9 สิงหาคม พ.ศ. 2553

วันอาทิตย์ที่ 8 สิงหาคม พ.ศ. 2553

Hey Nice Package! Slayers Revolution, Case Closed Season 3-5 VC - Anime Packaging Preview

blog.funimation.com The return of the HNP giveaways! Watch the latest edition of Hey, Nice Package! featuring Slayers Revolution and Case Closed Seasons 3-5 Viridian Collections. FUNimation.com funimation.com

วันเสาร์ที่ 7 สิงหาคม พ.ศ. 2553

A Wal-Mart Logistics


Image : http://www.flickr.com


Many people wonder how Wal-Mart can ask for such low prices and still make a profit. There are several factors in their business model, this ability, but great is their ability to adapt to a changing global market. Some criticize Wal-Mart's efforts to provide its customers with high quality product at reasonable prices, but in reality, Wal-Mart is able, low prices moving to deliver more effectively. This efficiency is in many areas, but athe most important places, as they are able to manufacture products in the world and to retail outlets, which are also in the world. This ability requires a logistics system that is perfect market notice sent to all moments.

One of the keys to efficient logistics system of Wal-Mart is the flexibility that the selection of suppliers. A Wal-Mart is negotiating with vendors and suppliers know that Wal-Mart will pay onlycompetitive prices. This is because it is very easy for them to find another provider of this special material with a lower price and very few logistical problems. This gives Wal-Mart, a huge amount of leverage in relations with suppliers. If a particular supplier knows that a company has found a lower rate, will reduce its prices accordingly. However, if the supplier knows that it is incredibly difficult for companies to make the necessary adjustments to ensure a smoothThe transition to another supplier, then they are less inclined to lower their prices until now. This is not, as the existing supplier deal with Wal-Mart when he sees that Wal-Mart has a supplier who will back a lower price, the current provider found their prices accordingly. They know that Wal-Mart's logistics system can easily manage the transition and therefore gain more support because it will be difficult or expensive to vote for Wal-Mart, anotherSuppliers.

Another reason why Wal-Mart's prices are so competitive because they buy in quantities so great that from one end of the supply chain is transported to another not so expensive for the additional units. This aspect of the logistics system is not the skill or know-how is is simply the size of the company, but this is still a factor. Wal-Mart buys so many supplies from multiple locations around the world who have the luxury of using morego to truck fuel and with less back and forth. Even if you use the program randomly material from one place to another should be transported, Wal-Mart will give the companies so much that they get huge discounts.

The logistics system that Wal-Mart uses is so effective because it is so flexible. Therefore, Wal-Mart can offer things cheaper than other companies will be able to. Wal-Mart has a reputation for being capable of these things in an economical way to provide fordependent on low wages and human rights violations, but that is simply not the case.

วันศุกร์ที่ 6 สิงหาคม พ.ศ. 2553

Supplies Split Up on ISS

Relocating cargo from the Leonardo Multi-Purpose Logistics Module to various positions aboard the International Space Station is among the highlights of the shuttle Discovery crew's ninth day in space. Flight Day 9 also included installation of equipment outside the ISS on the third and final spacewalk of STS-131.

วันพฤหัสบดีที่ 5 สิงหาคม พ.ศ. 2553

US Army Logistics: Always there, always ready

Always There Always Ready: Logistics is often the unsung hero, but in every era, military leaders have understood that the success of logistics can determine a conflict's outcome. Logisticians are the people who support the full spectrum of combat. www.army.mil

วันอังคารที่ 3 สิงหาคม พ.ศ. 2553

Benefits of a shipping


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Most of us want to move or transport of goods from one place to another and experience tells us that you can tax actually was. However, if a greater quantity of goods is involved, the problems would multiply in direct proportion. A shipping company is one that makes you freight of every shape, size or contributes to almost every corner of the world. large shipping companies can transport thousands of containers are involved each year. Care> The Logistics and trucks, containers, ships and aircraft under them, such as the delivery of the security company of your goods over long distances.

Not only is the only transport of large quantities of goods from other companies, shipping companies are also useful if you need to send small packages or even to move your furniture and goods Within the country or abroad. While offering when it comes to the global economy, these companies, logisticsact as support structures for manufacturing firms. In a sense, are those lines that supply the world economy by the manufacturers to supply products to the customer. No company can hope to succeed without a perfect person, without the support of a shipping company.

It 'really important to choose a shipping company with care, because the safe delivery of your goods is in their hands. Points will be taken into account are:

-Check that the company is registered or not.

- Make sure do not need a specialized transport your goods in case of fragile or perishable.

- Run a background check on the company since its reputation in the market may be an important indicator of efficiency.

- Check the company's accident rate.

- A company that also offers insurance backup for your goods for damage or theft should be preferred over others.

- Depending on theType of cargo, you can select the type of car (open or closed, the capacity and the cost of the machine) you need.

- As most shipping companies have their employees themselves, things packed before shipping to discuss in advance if you want your products are packaged in a certain way or plastics or other materials.

- If you get your goods to be transported to other countries, obtain the necessary documents and additionalCosts are expected to create (such as import / export and customs duties) in the process.

- Lastly, all the things agreed in writing.

Ensure that these agreements may be taken over a large part, for the safe delivery of goods so vital to the growth of your company or elements that lovingly collected over a lifetime to their destination. With shipping, enjoy life.

วันจันทร์ที่ 2 สิงหาคม พ.ศ. 2553

Machine learning data - logistic regression with adjustment L2 Python


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logistic regression

Logistic regression is used for binary classification problems - where you have some examples of "on" and other examples that are "outside". It takes as input a career that said, some examples of each class with a label, where each example is "on" or "off." The goal is to learn a model from training data, so that the caption of the new examples that you have not seen and can not predictKnowing the label.

For an example: Suppose you have a lot of data of buildings and earthquakes (for example, the year the building was constructed to describe the type of material used, the strength of the earthquake, etc.), and you know where every building collapsed (ON) or not ("off") in each of the last earthquake. Using these data, you want to make predictions about whether a particular building will collapse in a hypothetical future earthquake.

One of the first models, which would be worthattempts, logistic regression.

Encodes the

He was not working on this exact problem, but I had to quit a job. In practice what they preach, I started looking for a dead simple Python class logistic regression. The only requirement is that I wanted to support the legalization L2 (more on that later). They are also code-share with a group of other people on many platforms, so I wanted as few dependenciesexternal libraries as possible.

I have not found exactly what I wanted, so I decided to take a walk in the past and I use. I've written in C + + and Matlab, but never before in Python.

I'm not the discharge, but there are many good explanations out there to follow if not a bit afraid of calculation '. Just do a little 'Googling for "derivation of logistic regression." The idea is to write the probability of dataas some internal settings of the parameter, the derivative, which show how to modify the internal parameters to make the data more likely. Got it? Good.

For those of you out there who know, inside and outside of logistic regression, see how short the train () method. I like how easy it is to do in Python.

Regularization

I caught a bit 'indirect flak speak during March Madness season, asI settled into my latent carriers of the matrix factorization model of team offensive and defensive strengths in predicting the outcome of NCAA basketball. Apparently, people thought I was stupid - crazy, right?

But seriously, people - legalization is a good idea.

I would home the point. Check out the results of running the code (below) is connected.

Take a look at the top row.

On the left is set training. There are25 examples from the x-axis position and the y-axis indicates whether the sample is "on" (1) or "off" (0). For each of these examples, there is a vector that describes its attributes, which I understand. After training the model, ask the training model that is developed to bypass the labels and the likelihood that each label is "on" only on the basis of the description and examples of carriers has learned that the model (estimate we hope things like strongest earthquake and old buildingsincrease the probability of collapse). Chances are shown red Xs. Top left, the red X on the right are the top of blue dots, it is very safe on the labels of the examples, and that is always correct.

Now, on the right side we have some new examples that the model has never seen before. This is called the test in September This is essentially the same as the left, but knows nothing of the test model of class labels (yellow dots). WhatYou see, there is still a decent job of providing the label, but there are some cases where it is worrying very confident and very wrong. This is known as overfitting.

This is where regularization a. While walking between the lines about, we will be stronger L2 regularization - or, equivalently, pressure on the internal parameters to zero. This has the effect of reducing the model of certainty. Just because it's perfectly reconstruct training setdoes not mean that you have discovered everything. You can imagine that if you rely on this model to make critical decisions, it would be desirable to have at least a little 'there in the regularization.

And here is the code. Seems long, but most of it is to generate the data, then the result. The bulk of the work is done by train () method, which only three (thick) lines. It requires NumPy, SciPy and pylab.

* For full disclosure, II admit that generates random data in order so that it is vulnerable to overfitting, logistic regression, without looking at regularization perhaps worst of them.

Python code

Importing scipy.optimize.optimize fmin_cg, fmin_bfgs, fmin

Import NumPy as NP

final sigma (x):

Return 1.0 / (1.0 + np.exp (-x))

Class SyntheticClassifierData ():

def __init__ (self,N, D)

"" "Create instances of input vectors and N d-dimensional 1D

Class labels (-1 or 1). ""

Mean = 0.05 np.random.randn * (2, d)

np.zeros self.X_train = ((Nd))

np.zeros self.Y_train = (N)

for i in range (N):

if np.random.random ()> 0.5

y = 1

Other:

y = 0

self.X_train [i:] = np.random.random (d) + y medium [:]

self.Y_train [i] = 2.0 * y - 1

self.X_test np.zeros = ((Nd))

self.Y_test np.zeros = (N)

for i in range (N):

if np.random.randn ()> 0.5

y = 1

Other:

y = 0

self.X_test [i:] = np.random.random (d) + y medium [:]

self.Y_test [i] = 2.0 * y - 1

Class LogisticRegression ():

"" "A simple logistic regression models L2 regularization(Zero-mean

priori Gaussian parameters). ""

def __init__ (self, x_train = None, y_train = None, x_test = None, y_test = None,

alpha =. 1, summary = False):

# Set the strength of regularization L2

self.alpha =Alpha

# Set the data.

self.set_data (x_train, y_train, x_test, y_test)

# Initialize the parameters to zero in the absence of a better choice.

self.betas np.zeros = (self.x_train.shape [1])

DEFnegative_lik (self, beta):

return -1 * self.lik (beta)

def lik (self, beta):

"Probability" of data according to current settings of the parameters. "

# A probability

L = 0

forself.n in range ():

+ L = log (sigma (self.y_train [i] *

np.dot (Beta self.x_train [i ,:])))

# BeforeProbability

for k in range (1, self.x_train.shape [1]):

L -= (self.alpha / 2.0) * self.betas [k] ** 2

Back to the

def train (self):

"" "Define the slope and hand out a SciPyGradient-based

Optimizer. ""

# Definition of the derivative of probability than beta_k.

# It is necessary to multiply by -1, because there will be minimal.

dB_k lambda = B, K: np.sum ([* [B-self.alpha k]+

self.y_train [i] * self.x_train [i, k] *

Sigma (-self.y_train [i] *

np.dot (Bself.x_train [i ,:]))

for i in (self.n range)]) * -1

# The full course is a series of derivatives componentwise

dB = lambda B: Np.array ([dB_k (B, K)

for k in range (self.x_train.shape [1])])

Optimize #

self.betas fmin_bfgs = (self.negative_lik, self.betas,fprime = dB)

final set_data (self, x_train, y_train, x_test y_test):

"" Take the data that has already generated. " ""

self.x_train = x_train

self.y_train = y_train

self.x_test = x_test

self.y_test = y_test

y_train.shape self.n = [0]

final training_reconstruction (self):

p_y1 np.zeros = (self.n)

for i in range (self.n):

[I] = p_y1 sigmoid (np.dot (self.betas,self.x_train [i ,:]))

Back p_y1

test_predictions DEF (self):

p_y1 np.zeros = (self.n)

for i in range (self.n):

[I] = p_y1 sigmoid (np.dot (self.betas,self.x_test [i ,:]))

Back p_y1

plot_training_reconstruction final (self):

plot (np.arange (self.n) self.y_train, 0.5 + 0.5 * "Bo")

plot (np.arange (self.n) self.training_reconstruction ()'RX')

ylim ([-. 1, 1.1])

plot_test_predictions DEF (self):

plot (np.arange (self.n) 0.5 + 0.5 * self.y_test, 'yo')

plot (np.arange (self.n) self.test_predictions (), 'RX')

ylim ([-. 1, 1.1])

if __name__ == "__main__":

Import pylab*

# 20 dimensional data set to create with 25 points - this is

# Sensitive to overfitting.

data SyntheticClassifierData = (25, 20)

# Run for a variety of strengths regularization

Alpha = [0, .001, .01, 0.1]

for j, a in enumerate (Alpha):

# Create a newLearners, but use the same data for each cycle

LR = LogisticRegression (= x_train data.Y_train data.X_train, y_train =

x_test = data.X_test,y_test = data.Y_test,

alpha = a)

print "initial probability:

printlr.lik (lr.betas)

# Train model

(Lr.train)

# Display version more

print "Final Beta"

Print lr.betas

print "Final lik"

Print lr.lik (lr.betas)

# Plot the results

Subplot (len (alpha), 2, 2 * j + 1)

lr.plot_training_reconstruction ()

ylabel ('alpha ='% s% a)

if j== 0:

Title ("reconstructions Student Set)

Subplot (len (alpha), 2, 2 * j + 2)

lr.plot_test_predictions ()

if j == 0:

Title ("Test SetForecast)

show ()

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