Persistent Temporal Streams

Summary

• Programming Paradigms
• Novel Multimedia Apps
• Programming Model for Situation Awareness
• PTS Programming Model
  • Bundling Streams
  • Power of Simplicity
• PTS Design Principles

Programming Paradigms

• Parallel Program
  • pthreads
• Distributed Systems
  • Sockets

Novel Multimedia Apps

Sensor-based

• Cameras, radars, etc

Sensors -> distribution -> computation

Programming Model for Situation Awareness

Sequential Program for video analytics

Objective in Situation Awarenes apps

• Process streams for high level inference

How do we scale?

PTS Programming Model

Threads talk to other threads through channels to create a process graph

Channels holds sequenced data objects ordered by timestamps

Bundling Streams

Can name stream groups and name an anchor

groupget: Get corresponding time-stamped streams from all streams in the group

Power of Simplicity

Sequential Program for video analytics

Distributed Program for video analytics

PTS Design Principles

• Simple Abstractions
  • Channel and get/put
• Do the Heavy Lifting under the covers
• PTS Channels
  • Can be anywhere
  • Can be access from anywhere
  • Network-wide unique
    • Above are similar to Unix sockets
  • time is first-class entity
  • persist streams under App control
  • Seamlessly handle live and historical data