All posts by rehnhorngong


Tired to clean your house?

Two years ago, was established as a platform that connect cleaners and clients who needs their house be clean but have not time to do so. After two years, now Homejoy expands to more than 30 cities in United States and launched its European headquarter in London this year. How kind of innovation or business model that enabling all this happen? According to Homejoy, the website is less about selling things (cleaning service), but more about backend technology. Continue reading Homejoy

Quora: New way for Answers & Questions

Nowadays, if you have a question in mind, what would you do? Google it? Check Wikipedia? Either these ways are the most common method we use for searching an answer. However, what if the question is more complex that you can barely find a relevant answer by google or Wikipedia? There is a new choice you should try – Quora. It is basically a Q & A website which provides a platform for people can ask questions in variety areas. As guideline gave by Quora:

Quora works by having the community ask and answer questions.
When you want to know more about something, Quora delivers you answers and content from people who share your interests and people who have first-hand knowledge — like real doctors, economists, screenwriters, police officers, and military veterans.

beginning page

You need to sign in by email or facebook/google account before start using website, then choose topics interested you. After several step about personal information, you can start ask a question or answer a question from other people, or just check discussions from topic interested you. You can also follow people in Quora, but that will cost you credits, an important element which will be explained in the next paragraph. The recommendation agent works vigorously at Quora by active and passive content filtering and collaborative filtering. By the topic you select in the beginning, Quora displays relevant contents on your homepage and by the questions you are viewing, it shows relevant or similar questions on the ride-down side of screen.

topic choosing

However, how to evaluate quality of answers to the question or the question itself? Continue reading Quora: New way for Answers & Questions

New way of sharing your voice

Nowadays, human life mainly relies on electronic devices, including computer, cellphone, and television. Internet plays a role of catalysis of increasing connection between people and electronic devices. Because of this, more and more brick-and-mortar stores/services are gradually digitalized or replaced by on-line store/service, karaoke industry is not an exception. iKala, an online karaoke service provider, develops new way for people singing the song with low cost and convenience. It operates at multiple platform- cellphone, computer, and television- that connected by internet.


The way to use the iKala is intuitive. Continue reading New way of sharing your voice