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Speech recognition breakthrough from Microsoft
Recently, Microsoft Research published a demo video on YouTube that demonstrated simultaneously translating English speech to Chinese speech with Microsoft's new research achievement. The result is quite impressive, it has large improvement compared to previous speech recognition systems. It's a big breakthrough of speech recognition. In this demo, Microsoft Chief Research Officer Rick Rashid demonstrates a speech recognition breakthrough.First when he speaks, the screen will display what he is ...
Speech recognition, Text to speech,Machine translation 2012-11-09 23:53:21
Why Dynamic Programming Languages Are Slow
In a statically typed language, the compiler knows the data-type of a variable and how to represent that. In a dynamically-typed language, it has to keep flag describing the actual type of the value of the variable, and the program has to perform a data-dependent branch on that value each time it manipulates a variable. It also has to look up all methods and operators on it. The knock-on effect of this on branching and data locality is lethal to general purpose runtime performance. T...
Dynamic language,Slow,Analysis 2012-03-26 15:33:11
Why Programmers don’t have a High Social Status?
Up to date there is No single street name for a top programmer or computer scientist in any of the Top 20 most developed countries in the world during the last 60 years. There is no statue built in the center of a major city for a renown programmer or computer scientists. No “Presidential Medal†or “Congressional Gold Medal†has been awarded to a computer scientists or programmer. There is no nationally televised social reward ceremony for computer programmers and scie...
Propgrammer,Social status,Remember,Achievement 2012-01-04 02:43:05
A Peek Inside the Erlang Compiler
Erlang is a complex system, and I can’t do its inner workings justice in a short article, but I wanted to give some insight into what goes on when a module is compiled and loaded. As with most compilers, the first step is to convert the textual source to an abstract syntax tree, but that’s unremarkable. What is interesting is that the code goes through three major representations, and you can look at each of them. Erlang is unique among functional languages in its casual scop...
Erlang,Peek,Erlang compiler 2012-02-08 10:12:04
10 advice from Jack Ma on success
Jack Ma, the founder and executive chairman of the biggest e-commerce website Alibaba.com in China, started his business with $20,000 that his wife and friends helped him raise. He is the first mainland Chinese entrepreneur to appear on the cover of Forbes. He is the richest man in mainland China with net worth of $22.5 billion. During these years of running Alibaba Group, Jack Ma summarized 10 advice for success, these advice are coming from his experience and mistakes he made. ...
Why PHP is (so much) better than Ruby?
I attended this weekend my first Ruby conference, Ruby Lugdunum in Lyon. Besides cool talks and the fun of meeting people like Nick, Blake, or Laetitia, my friend Camille & I did a surprise lightning talk about how PHP is better than Ruby. Here are the slides and a more detailed transcript: A lot of free hosts: it’s easy to find a PHP host, you just have to google “free php host†and you find a ton of free PHP/MySQL hostsBigger community: The PHP community is really huge,...
PHP,Ruby,Comparism,Difference,Advantage 2011-06-29 08:34:12
Huawei phone with HarmonyOS installed is becoming real
In past few days, there is a photo of a Huawei phone with HarmonyOS installed appearing on the web. This is an engineering testing phone circulating inside Huawei according to the source. This is the first time that a real phone with Huawei's own operating system HarmonyOS installed is being seen on the web. This indicates that it will not be that far for general public to be able to access the new Huawei self developed OS. From the photo, there are a few indications: This phone sample s...
The world's first HTML5 SIP client
This is the world's first open source HTML5 SIP client (May 12, 2012) entirely written in javascript for integration in social networks (FaceBook, Twitter, Google+), online games, e-commerce sites... No extension, plugin or gateway is needed. The media stack rely on WebRTC. The client can be used to connect to any SIP or IMS network from your preferred browser to make and receive audio/video calls and instant messages. The protocol parsers (SIP, SDP...) are highly optimized using Ragel loo...
Before Python
This morning I had a chat with the students at Google's CAPE program. Since I wrote up what I wanted to say I figured I might as well blog it here. Warning: this is pretty unedited (or else it would never be published :-). I'm posting it in my "personal" blog instead of the "Python history" blog because it mostly touches on my career before Python. Here goes.Have you ever written a computer program? Using which language?HTMLJavascriptJavaPythonC++COther - which?[It turned out the students ha...
Python,History,Programming language,B 2012-01-18 08:08:53
Traditional recursion vs Tail recursion
Recursion is a frequently adopted pattern for solving some sort of algorithm problems which need to divide and conquer a big issue and solve the smaller but the same issue first. For example, calculating fibonacci accumulating sum and calculating factorials. In these kinds of issues, recursion is more straightforward than their loop counterpart. Furthermore, recursion may need less code and looks more concise. For example, let's calculate sum of a set of numbers starting with 0 and st...
ALGORITHM,RECURSION,TAIL RECURSION,TRADITIONAL RECURSION 2016-09-23 23:54:09
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