Senin, 16 Januari 2012

Newspaper Reading for Language Students

A Khmer student wrote to me on YouTube and asked me to produce videos about how to read English language newspapers.

"I'd like to ask you to make videos how to read newspaper and translate it from English to Khmer. I Khmer and I having a problem to understand English phrases." Wrote the student.

Language learners often write telling me about some area of learning or area of their lives where they are experiencing difficulties of comprehension and ask me for a trick or a guide to help them learn.

As I have said in numerous other language learning articles, there are no tricks and no hints. The more hours you invest, the better you will get. And if your goal is to read at a native speaker level, then you need to read things a native speaker reads. If you are a 22 year-old university graduate, then you need to be reading at that level in the foreign language. And you won't get there by reading textbooks ABOUT the language. You will get there by reading books, articles, and textbooks IN rather than ABOUT the language.

If we analyze this latest email, the student says he has trouble reading, and he specifically singled out newspapers.

Obviously, reading is reading. On some level, reading a newspaper is no different than reading a novel or reading a short story.

If you are reading novels and short stories, you should be able to read newspapers. If I asked this student, however, he is probably is not reading one novel per month in English. If he were, newspaper reading would just come.

Therefore, the problem is not the reading or the newspapers, per se. The problem is the lack of practice.

I never took a course called "Newspaper Reading" in English. I just started reading newspapers. And at first, I had to learn to deal with the language, structure and organization of newspaper writing, but no one taught me, or you. It just came to us. The same was true for German or Spanish newspapers which I can read almost as well as English. No one taught me, or taught Gunther or Pablo, it just came through practice.

A point, that I have made many times in articles, is that when you begin learning a foreign language, you are not an idiot. You are not starting with an empty brain. One reason it takes babies three years to learn their native tongue is because they are also learning what a language is and how language works. You know all of that, and much more. Babies don't know that there is such a thing as grammar. Every single piece of vocabulary has to be learned. A seven year old may not know the words "population, economy, government, referendum, currency" in his native tongue. So, reading a foreign newspaper would be difficult for him, because reading a newspaper in his mother tongue is difficult for him.

If you are an adult, coming from a developed country, with at least a high school or university level of education, you should already be able to read newspapers in your native tongue. At that point, reading a newspaper in a foreign tongue is simply a matter of vocabulary.

True there are different uses of language, and styles of writing. And newspapers do have style which differs from other kinds of writing. But you just read, and read and figure them out.

The problem with most learners, however, is that they aren't reading novels and short stories. Most learners need to just accept that they need practice. They need to read, and read, and stumble, and fall, and read again, until they get it.

I didn't develop a taste for reading the newspaper in English until I was in my late twenties. But, by that time I had read countless books in English, and completed 16 years of education. I only began reading newspapers because I had to read foreign newspapers at college. Then I learned to read the newspapers in English first, to help me understand the foreign newspaper.

One of the problems, specifically with Khmer learners is that there is so little written material available in Khmer. American students have had exposure to newspapers, magazines, novels, reference books, poetry, plays, encyclopedias, diaries, biographies, textbooks, comic books... Most Khmers haven't had this exposure.

Know the Truth - Abstinence Education Works

Abstinence education is a useless construct of the Right...right? A survey of mainstream media would lead you to believe just that. the truth, should it ever get out, is shocking. There is an abundance of evidence that shows abstinence education is effective in reducing teen pregnancy. This evidence is important to consider now that the Democratically controlled congress has cut Title V funding (abstinence education) from the budget.

In Georgia, since adopting abstinence education the teen pregnancy rate has dropped 46 percent. The steepest declines occurred when abstinence was at its highest funding stage. This pregnancy decline started in 1995 when the state of Georgia made abstinence its statewide policy. Think about that, a 46 percent decline in teen pregnancy as a result of a statewide policy of abstinence education. Shouldn't that have received at least a footnote in the anti abstinence campaign the mainstream media has been waging?

A randomized controlled trial conducted by jimmott it al. found that abstinence-only intervention significantly reduced sexual initiation among young African American adolescents after a 24-month follow-up period, and did not reduce condom use for those virgins who did become sexually active.

An evaluation of "Reasons of the Heart" abstinence curriculum found that adolescent program participants were approximately one half as likely as the matched comparison group to initiate sexual activity after one year. The program effect was as strong for the African American subgroup in the sample as it was overall.

The "Sex Respect" and "Teen Aid" abstinence-only programs reduced the rate of initiation of sex by more than one third for the high-risk students in a Caucasian high school sample after 12 months.

These are just a few of the many peer reviewed studies out there that show abstinence education get positive measurable results. Have your heard of any of them? Why did the media ignore peer reviewed studies that showed abstinence education works? And, if the evidence that abstinence education works is so prevalent, why has funding for Title V been discontinued?

There is one study however, that enjoyed wide exposure and acceptance. It was quoted and covered by all the major news outlets. Can a study become a media darling? The Mathmatica Study did. The Mathmatica study showed conclusively that abstinence education doesn't work...right? If you read the headlines that is what you would have come away with. Headline after headline: "Abstinence Education Proven Ineffective". The Mathmatica study was championed by all the mainstream media and quoted by politicians that wanted to do away with abstinence programming. So, let's take a look at Mathmatica

The Mathmatica studey examined four abstinence programs, that's right, four. Those four programs showed no positive outcomes for teen sexual behavior (of this there is no debate, the four programs were not effective in reducing teen sexual activity). take a close look at the number of program Mathmatica examined: four. That's it. Now the headlines and articles never mentioned that only four programs were looked at. Why? The headlines and articles that ran in the national newspapers and were story leads on ABC, CNN, NBC, and CBS were clear: "Abstinence Education Ineffective". Wouldn't a much more honest and accurate headline have been, "Mathmatica Study shows four abstinence education programs ineffective"? Why did the mainstream media withhold the information that Mathmatica only looked at four programs? Can you honestly evaluate a national movement with thousands of programs by looking at four of them?

All four of the programs Mathmatica evaluated used a non-representative study sample. The four programs served African American youth from poor single-parent households. Why didn't the mainstream media cover this?

The programs themselves were flawed. I know that's harsh, but they were. The very structure of the programs guaranteed they would not be successful. The four programs that Mathmatica looked at had intervention ages that were young. Some students were involved with the program as young as 4th and 5th grade. And then never again. That's right, none of the programs had any contact with the students during the 9th, 10th, or 11th grade when transition to sexual activity typically occurs. Of course the programs failed. How could they succeed? How can you expect to impact sexual behavior if you don't intervene during the years that sexual behavior starts? They were failed programs to begin with.

Getting a Robust Algo

I'm working with the 21 guys that attended the recent FloBot workshop. BTW, the videos are now available. They come with mentoring so you get a lot of feedback and guidance as you work towards that robust FloBot.

Some of the guys have created some amazing stuff. It's funny how we all watch the same movie and get our own ideas from it. There's a few of them already in SIM with their versions of Flo. I'm pretty impressed, particularly with one guy that has been working with me for over a year. It looks like he's really found his niche with his algo. The amount of time and effort he put in was considerable.

The steps to go through to create your own algo are fairly simple though time consuming. Each step is dependent on the previous one. The goal is that at the end of SIM you can be as sure as possible that you have a robust profit making FloBot.

The steps are:

  1. Decide on your entry rules
  2. Do an optimization to find the correct inputs for the entries and exits using 4 to 6 months of data or more
  3. Do a walk forward optimization analysis using the above results but optmizing only the exits. I usually use 28 days InSample and 7 days OutOfSample but I try 21 days IS, 14 days IS and 7 days IS if 28 days does not provide good results.
  4. Once the WFO passes your tests (what you think PLUS 80% of the OOS periods are profitable enough) you have a model ready for SIM testing
  5. Load only the IS data that was the same as the good IS WFO and optimize the exits as you did in the WFO but with this lesser data.
  6. SIM trade, reoptimizing after each 7 days if that was your OOS period.
  7. Once you are satisfies with SIM, consider whether to go live on 1 contract.

The purpose of all of the above is to see that if you do an optimization over the, say, last 28 days and then trade that model for the next 7 days that you are likely to be profitable with acceptable drawdowns.

Without the WFO analysis, it's still just HOPE. I also strongly recommend the SIM as you need to see how things turn out using live data. What I want to see is how Flo reacts intra bar. An algo in backtesting has to guess whether the High or Low of the bar happened first and whether the guess is correct impacts the way that the algo operates. Seeing this in SIM may require a change in the periodicity used.

Minggu, 15 Januari 2012

Indelible Events This Week - Blogger and Writer chats

First a HUGE congrats to our very own Addison Moore, who's Celestra series has been optioned for a TV series by 20th Century Fox!! We are so over the moon excited for her! Check out her announcement.




As some of you know, we, the Indelibles launched last week with a Kindle Fire giveaway where the lucky winnerwas Chris Fenimore.

Now, we have two more exciting events for you this week:

ALL BOOK BLOGGERS
(*this means bloggers who review children's books on their blogs)

If you are a book blogger only - we are having a special appreciation chat to discuss what we all love - books. The Indelibles will also be giving away a slew of books.

Tuesday, Jan 17th from 8-9 pm EST HERE on this blog (Chat deets will be sent out Monday. It will only be sent out to the bloggers who fill out the INVITE FORM form with a Yes or maybe. So you need to email me for the INVITE if you want to attend.)

Leave me a comment or email me at shelli@srjohannes.com and I can add you to the invite. (BOOK BLOGGERS ONLY


ALL WRITERS

Don't worry writers - we would NEVER forget about you. :) We are also having a special writer chat where the Indelibles will chat about indie pubbing, writing, book marketing, and more. Once again, the Indelibles will be giving away a slew of books.

Jan 18th, Wed right before #yalitchat from 8-9 EST. Chat deets will be posted on Tuesday on each Indelible's blog and the main site.

We hope to see you all there!

Jumat, 13 Januari 2012

Who's driving innovation?


I used to think that progress in science drives technical innovation. With sequencing it is the other way around: The sequencing companies provide new technology (a recent example being the Ion Proton sequencer), and the scientists gratefully use it to produce new knowledge, or at least new data.


In other words, the companies that develop sequencing technology are at the top of the innovation pyramid. Illumina, Life Technologies, Pacific Biosciences, Complete Genomics and Oxford Nanopore produce the innovations that keep the sequencing market growing.

At the next level are the organisations that use sequencing technology directly. These come in two flavours. One is academia, dominated by large sequencing centres such as the BGI, the Broad Institute, the Sanger Institute or the Joint Genome Institute. The other is clinical sequencing companies such as Sequenom, Ambry Genetics, LifeCodexx or Good Start Genetics.

At the third level are companies that provide services or products that are accessory to sequencing technologies. Again, there are two types: There are bioinformatics companies such as DNAnexus, Personalis, GenomeQuest or Accelerys, and sample preparation and supplies companies such as Agilent, Fluidigm or Roche Nimblegen.

Whilst this structure with sequencing companies at the top of the pyramid in my opinion nicely characterises the current marketplace, it will be interesting to see how it develops in the future. Are there any trends that indicate that sequencing companies may lose the initiative?

Limber and flexible IT: YogaWorks goes Google


Editor’s note: Today’s guest blogger is Jay DeCoons, COO of YogaWorks. Renowned for its excellence in classroom instruction and teacher training, YogaWorks delivers yoga training and classes in 60 cities around the world. Learn more about other organizations that have gone Google on our community map.

At YogaWorks, we first and foremost consider ourselves to be educators of yoga. Since opening our first location in 1987, we’ve expanded our reach across the world, which means we’ve had to figure out how to effectively scale a growing organization while continuing to deliver the best training instruction possible. When we first took a look at Google Apps, we thought it would be a great cost savings tool but as we’ve discovered, Google Apps has also allowed us to easily and flexibly connect our business throughout the world.

Prior to Google Apps, we used a hosted Microsoft Exchange server. While on Exchange, we had to set a 2 gigabyte inbox quota and had difficulty achieving a simple, scalable email deployment for our staff’s mobile devices. We also had a lot of offline processes that were cluttering the operations of our studio managers and producing a lot of excess paperwork, which ran counter to our goal of running a sustainable and eco-friendly company. At the time, our IT costs were roughly $130 per user per year.

When we were evaluating Google Apps, we realized that the solution would allow us to further our green-friendly mission by reducing our overall environmental footprint and would enable us to create a truly mobile workforce with anytime, anywhere data access. We also saw the potential Google Apps held for collaboration among team members, with its unique communication and sharing capabilities.

We went Google with the help of Google Apps Authorized Reseller Dito, who assisted us in setting up Apps and training our team. With Google Apps, we’ve been able to reduce our total IT costs by over 60%. The ability to share documents and reach out to teammates quickly has boosted the morale and sense of community across our team. Mobility has also been a key gain for us, as Google Apps allows us to work seamlessly while on the go across our 24 studios and 60 cities where we hold teacher trainings. Through Google Docs, we have been able to save paper and eliminate tedious offline processes, making our day-to-day operation more environmentally-friendly and efficient.

Google Apps has helped us create a more efficient, more excited and more productive workforce, which in turn has helped us focus on what we care most about: bringing safe, compassionate and skillful teaching of yoga to all.



Friday 13th

I had a great dinner at the Lahore Kebab House last night. Great food if you're a lover of Indian food like I am, and are ever in London. The main branch is in the East End of London, which has historically been the home of the largest group of immigrants at any one time. At the moment it's Indians and Pakistanis. 50 years ago it was the Jews and there are still some remnants of Bagel houses and a couple of Kosher restaurants there, which I also love.


The pic below shows the last part of yesterday's Light Crude trades by Flo. The exits in autotrading can be improved considerably by using market action as revealed by the math of indicators rather than just straight dollar stops and targets. By making the exits more dynamic it's possible to capture more of the move, if that is what you want. This is different to more HF trading, which only looks for the setup and captures a set amount counting on an extremely high win rate. It all goes back to designing the algo to fit your goals.