Monday, February 27, 2023

 

DB Reading


BASE: An Acid Alternative: In partitioned databases, trading some consistency for availability can lead to dramatic improvements in scalability.

https://dl.acm.org/doi/10.1145/1394127.1394128

TAO: FB Graph  - https://engineering.fb.com/2013/06/25/core-data/tao-the-power-of-the-graph/

https://dx.tips/oops-database

Saturday, February 10, 2018

Neural Networks Resources



Demystifying Neural Networks
http://scs.ryerson.ca/~aharley/neural-networks/

Gradients
https://www.khanacademy.org/math/multivariable-calculus/multivariable-derivatives/gradient-and-directional-derivatives/v/gradient

Graphical Understanding of Partial Derivatives
https://www.khanacademy.org/math/multivariable-calculus/multivariable-derivatives/partial-derivatives/v/partial-derivatives-and-graphs

Thursday, June 22, 2017

Night Mode on OS X

System Preferences -> Accessibility ->

Enable
- Invert Colors
- Grayscale

Saturday, May 06, 2017

NLP Tools

Five Open Source NLP Tools:
https://opensource.com/business/15/7/five-open-source-nlp-tools

Friday, December 09, 2016

Conducting User Interviews - Resources

https://community.uservoice.com/blog/customer-interview-questions/

http://labs.openviewpartners.com/conducting-customer-interviews/?mc_cid=f43bec58c9&mc_eid=6ce1eb31c3#.WEsEa3eZM0o

https://www.youtube.com/watch?v=etSL8hvgU5A&mc_cid=f43bec58c9&mc_eid=6ce1eb31c3




Thursday, November 17, 2016

Apple Airport Extreme + Comcast (XFinity) Setup

After struggling a bit, this is now setup correctly.  Advanced Comcast support helped with fine tuning the setup. However, I spent a lot of fruitless hours with two first line Comcast support personnel who were following some scripts and did not have a full understanding. The third one I spoke to was smart enough to transfer me over to the advanced support. The advanced support person (Ameira) was very knowledgeable and provided excellent help.

I have  
1. Apple Airport Extreme (flat round rectangle shape - don't know which gen).

2. Xfinity Modem with WiFi - vertical one.

3. Vonage modem for landline

4. Network printer

Xfinity Modem Setup
1. Set Xfinity Model in Bridge Mode (not DHCP). This also disables its WiFi thus avoiding a duplicate WiFi network in case you don't want to use the WiFi network that comes with Xfinity modem.

You can either have the Comcast rep turn on Bridge mode remotely or connect locally to the router on the address 10.0.0.1 (default username / password is admin / password)

2. Connect Apple Extreme using Ethernet cable to the Xfinity modem in network jack #1. Not sure if #1 is critical but thats what Comcast support recommended.

Now, VERY IMPORTANT, don't use any of the other network ports on the Xfinity modem. Remember, its in Bridge mode and its not acting as a router anymore.

I had to figure this out myself because I had connected my Macbook using a wire directly to the modem to get access to the internet for troubleshooting not realizing that this was causing the Airport Extreme to not establish an Internet connection using the Bridged modem.

Airport Extreme Setup
1. Using Airport Utility on your Mac, connect to the Airport Extreme.

2. On the 'Internet' tab, set to DHCP. No need to fill in any of the other fields.

3. IMPORTANT -> On the 'Network' tab set to "DHCP and NAT". I had to change the NAT address range to use the 192.168. prefix instead of 10.0. Not sure of the reason for this.

4. Create your WiFi network.

After enabling both 2.4 and 5 GHZ and measuring download speeds, I found that when both are enabled 5 GHZ works faster. However, 2.4 GHZ only (i.e. disable 5 GHZ) works fastest - faster than 5 GHZ. So my setup is 2.4 GHZ enabled, 5 GHZ disabled.

5. Connect Vonage, Printer by ethernet cables to Airport Extreme.

Finally
Power cycle the Xfinity Modem, then power cycle the Airport Extreme.

  DB Reading BASE: An Acid Alternative: In partitioned databases, trading some consistency for availability can lead to dramatic improvement...