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khmel

231 karma · joined September 30, 2012

expertise in social networks monetization, payment systems, natural language processing and data mining\algorithmic trading
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khmel··on Introducing Graph Search
FB search as it is not capable to become kickass end-user-oriented product yet, it's more like a set of technologies that could be used by app developers to create cool dating\hiring\recommendation services and widgets using real-time api requests. The best apps will be acquired by Fb or just copied :)
khmel··on The Maximum, Beautiful Product
Problem with MVP is the loss aversion bias + limited resources that entrepreneurs have - often 'lean' founders choose idea that is close to existing business process \ customer habits or investment trends (this decreases risk to lose) and then 'pivot' changing small things - one thing at a time trying to get the new service. It works well for theatretical improvisation and business improvements, but will not put product away from existing trends. For the same reason, Silicon Valley is sometimes too trendy and short-sighted. Many big ideas emerged outside of the Valley and then came here to 'pivot'
khmel··on LinkedIn Hacks
Cycling through colleagues and peripheral network is a very clever backdoor way to find people on LinkedIn. http://www.linkedinsights.com/10-common-mistakes-that-will-c...
khmel··on Hacking my Vagina
Vagina rocks! This topic would never get so much attention if this would be 'Hacking my ... nose, knee, hand etc..'. Some star topics are easy to predict.

Nerds have their own weaknesses

khmel··on Facebook makes it official — an external advertising network is coming soon
This will have marginal impact on Fb revenue for 2 reasons:

1. What people share on Facebook <> what people really want to buy\consume\order

People are trying to look nice on Facebook. Facebook has to come up with some non-trivial statistics. What those guy who liked SF Giants and Obama is willing to buy. This requires 'Hunch-like' insights. And we know that Hunch business model was not a big success. Google's exercise is much easier, becuase Google knows what user's looking for, privacy of search request helps a lot. This could be fixed in only one way - through introduction of search engine within Facebook. Facebook could acquire Blekko or hire bunch of people from Google\Bing.

2. Site owners will get higher CPM with Google than Facebook. And will prefer using Google ads in most cases, not Facebook ad.

This will happen for the same reason as N1, Google has higher advertising relevancy and offered price than Facebook. Facebook will be sucessful at niche sites only - like Zynga, junk sites that are blocked by Google, etc. This could work for brand advertising, with pay-per-view model.

khmel··on Facebook makes it official — an external advertising network is coming soon
It does not matter if site already has any Fb services (likes, recommends, sharing)- Facebook callback could be easily added to any site together with advertisment module. It means that Facebook will deliver to ad module that ad that is most likely will be clicked according to site's user fb profile, likes, etc.
khmel··on Ask HN: Can I work as Fb product manager and build my startup at the same time?
nobody is an expert?
khmel··on Rapid prototyping techniques / testing without building
very useful class from Staford CS, that is what Lean methodology is missing - How to build MVP
khmel··on Ask HN: Why is AAPL down to $527 a share from $705?
My perception is that this is zero sum game. For big companies like Apple their capitalization makret is driven mostly by institutional and megafunds money. Those guys are very inertial in their invetsment strategies, and their ammount of funds is stable. Decrease in Apple demand should mean that those guys realocated their funding to other IT companies, or moved money to another industry (this is less probable and takes more time).
khmel··on Ask HN: Why is AAPL down to $527 a share from $705?
Because, it was overpriced. Too many people believed that this gonna be the first 1 Trillion company in market cap.

Problems started before launch of IPhone 5 when it became obvious that IPhone maps are not good - market did not like this Apple vs. Google war. Then there was not very successful launch Ipad mini - it was way too expensive to become killer-product. Apple fired few top managers becaus of this drawback - also not a good sign. Finally, Microsoft 'cope' Apple format for retail stores and launched Windows 8 with more revolutional design then Apple products have.

I was personally disappointed with absence of NFC chip in IPhone 5. Apple mossed good opportunity to enter NFC payments market, while Android is already there.

Apple is loosing their edge.

khmel··on Ask HN: Is really Y Combinator selection process fair?
YC became a very good brand that attracts best startups all over the world. I believe, you could make good make good portfolio from rejected companies. It could be good market for crowdfunding.

Problem is that not many investors have sellection skill and experience that YC or some other industry leaders have. That's why investors prefer to follow, 'lemming role' is safer and psychologically more comfortable. Difficult to fing reason to be the first investor in the pool.

What would help for everybody in ecosystem - more transparency in YCombinator selection process. Min Scoretable - team score, market score, product score, stage. Startups could opt-out from public scoretable while applying.

This will become point of reference for other investors and crowdfunding platforms and valuable feedback for entrepreneurs. YC as industry leader could bring this public good to the table.

khmel··on YC Rejection Emails Are Out
You could make huge fund money on hurricane preditions - it matters for commodity market. I know guys who made 300M because predicted Katrina. Approach this market!
khmel··on YC Rejection Emails Are Out
I found video experience very useful - I found 200K angels because of my team video. Share this with other investors - they will appreciate.
khmel··on Ask HN: Anyone heard anything regarding YC Winter 2013 Applications?
YC guys like .59 as I see ))

little imperfections make this life interesting

khmel··on 5000 human feelings in real time - from blogs
When the applet is first opened, the initial dataset consists of the most recent 1,500 feelings collected by our system. The applet's panel can then be used to arbitrarily specify different populations, constrained by any combination of:

- Feeling (happy, sad, depressed, etc.)

- Age (in ten year increments - 20s, 30s, etc.)

- Gender (male or female)

- Weather (sunny, cloudy, rainy, or snowy)

- Location (country, state, and/or city)

- Date (year, month, and/or day)

khmel··on 5000 human feelings in real time - from blogs
At the core of We Feel Fine is a data collection engine that automatically scours the Internet every ten minutes, harvesting human feelings from a large number of blogs. Blog data comes from a variety of online sources, including LiveJournal, MSN Spaces, MySpace, Blogger, Flickr, Technorati, Feedster, Ice Rocket, and Google.

We Feel Fine scans blog posts for occurrences of the phrases "I feel" and "I am feeling".

Once a sentence containing "I feel" or "I am feeling" is found, the system looks backward to the beginning of the sentence, and forward to the end of the sentence, and then saves the full sentence in a database.

Once saved, the sentence is scanned to see if it includes one of about 5,000 pre-identified "feelings". This list of valid feelings was constructed by hand, but basically consists of adjectives and some adverbs. The full list of valid feelings, along with the total count of each feeling, and the color assigned to each feeling, is here.

If a valid feeling is found, the sentence is said to represent one person who feels that way.

If an image is found in the post, the image is saved along with the sentence, and the image is said to represent one person who feels the feeling expressed in the sentence.

Because a high percentage of all blogs are hosted by one of several large blogging companies (Blogger, MySpace, MSN Spaces, LiveJournal, etc), the URL format of many blog posts can be used to extract the username of the post's author. Given the author's username, we can automatically traverse the given blogging site to find that user's profile page. From the profile page, we can often extract the age, gender, country, state, and city of the blog's owner. Given the country, state, and city, we can then retrieve the local weather conditions for that city at the time the post was written. We extract and save as much of this information as we can, along with the post.

This process is repeated automatically every ten minutes, generally identifying and saving between 15,000 and 20,000 feelings per day.

khmel··on Ask HN: YC applicants, who's up for a morale-boosting meetup/hangout?
Would be glad to join - I live in Menlo Park, office in Palo Alto. Coupa or Nola are good places to meet. I also like smoking shisha - there's one place in PA, and a good place in Sunnyvale. Igor
khmel··on In the Olympics of Algorithms, a Russian Keeps Winning Gold
yes dikshun, university is the same, but I studied journalism there, not math&physics :)
khmel··on In the Olympics of Algorithms, a Russian Keeps Winning Gold
I know that most of them allow Pascal, C and C++. Some of them alllow Java.

I coded on Pascal myself when I was of the winners of Ukranian computer science olympiad.

khmel··on In the Olympics of Algorithms, a Russian Keeps Winning Gold
Gennady is the student of Saint-Petersburg State University of Information Technology, Mechanics and Optics now
khmel··on In the Olympics of Algorithms, a Russian Keeps Winning Gold
The current high school level in Russia is not so bad guys.

These are results of the last International Olympiad in Informatics (2012, Italy):

1. China - 4 gold out of 4 - total score 1847

2. Russia - 4 gold out of 4 - total score 1765

3. USA - 3 gold and 1 bronze - total score 1637

http://www.ioi2012.org/competition/results-2/

khmel··on In the Olympics of Algorithms, a Russian Keeps Winning Gold
He has YouTube channel. Thse are few videos from there: http://www.youtube.com/watch?v=QKuMGhPHqOI http://www.youtube.com/watch?v=9HX2QQIj3GY
khmel··on In the Olympics of Algorithms, a Russian Keeps Winning Gold
nice
khmel··on In the Olympics of Algorithms, a Russian Keeps Winning Gold
you should report a bug to them!
khmel··on In the Olympics of Algorithms, a Russian Keeps Winning Gold
Topcoder is famous for pure computer science competitions - probably, they just don't care about captcha ))
khmel··on In the Olympics of Algorithms, a Russian Keeps Winning Gold
It was quote from MIT Technology review paper. Objectively I agree. TopCoder is very well known competition, also Petr won Facebook's Hacker Cup. But this is not the whole World. There're also ACM competitions, International computer science olympiads and many other corporate contests.
khmel··on In the Olympics of Algorithms, a Russian Keeps Winning Gold
there's high density of post-Soviet block people in TopCoder ranking - out of TOP10 7 are from Russia, Belarus and Poland. Other 3 - China, Japan, South Africa http://community.topcoder.com/tc?module=AlgoRank
khmel··on Y Combinator interview decisions postponed to November 15
Read news about 3.2M round by Amicus (YC-S2012). Feel very excited! We're solving the same problem in another way - combining micropayments and social graphs for non-profit fundraising. Looking forward for Day X! Good luck everyone!
khmel··on Next Year's Top 20 Startups
Congrats to SoFi that is transforming the student loan industry and was co-founded by my classmate Jim! Good idea to push student interest down though refinancing from alumni. Good way to monetize social capital of university communities.
khmel··on Jewish Problems
I believe, issue was not the final numbers - % of Jewish people/Jewish population was the highest compare to other nations in the USSR. Number of Jewish professors, academics and billionaries with academic background is amazing.

I understand why USSR did that. Government sponsored education. Number of places in best universities was very limited, it was nation's genome and capital. People who supposed to develop new weapons and economy. Soviet government did not trust Jewish people - as we see from the history, Jewish people were often the first who left the country in case of problems. It was hard to imagine that they will become Soviet patriots. That's why USSR came up with artificial barriers in order to give more places in universities to more potentionally patriotic students. USSR wanted to save its intelligent capital investment and feel more save.

The problem was the rude way how artificial barrier was created by USSR. Instead of organizing super-complex writing exams for Jewish people, or making ideological interviews they tried to eliminate them with fake oral exams.

See below how US handles the same issue with asian students (reposted from user continuations).

http://www.boston.com/news/education/higher/articles/2011/04.... "Princeton sociologist Thomas Espenshade and researcher Alexandria Walton Radford examined data on students applying to college in 1997 and found what looks like different standards for different racial groups. They calculated that Asian-Americans needed nearly perfect SAT scores of 1550 to have the same chance of being accepted at a top private university as whites who scored 1410 and African-Americans who got 1100. Whites were three times, Hispanics six times, and blacks more than 15 times as likely to be accepted at a US university as Asian-Americans."

In Russia a minority like Jews are asked special questions in admission tests to make it harder for them to get in, while in America a minority like Asians are hit with a penalty of 450 points in SAT to make it harder (15 times harder) for them to get in. There's no difference.

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