Tuesday, September 05, 2017

[Links of the Day] 05/09/2017 : Patent Surviving Alice, Hot Cloud 17 conference papers

  • 7 Post-Alice Patent Cases That Survived 101 Rejections : Alice US supreme court decision started a slaughter in the US patent office regarding IT related patent: 8400 applications dropped and 60k+ rejected. While courts invalidated the vast majority of patent litigation. However, it seems that there is a way to survive the onslaught, and it's quite simple. You just need your patent to satisfy the following criteria: novelty, enablement, non-obvious, and last but not least useful. it seems like a no brainer, but it seems that the USPTO allowed itself to be flooded by sub par applications that gamed the system. Not to mention that the agency financially gained from such practice to some extent also. 
  • Hot cloud 17 : hot cloud conference just finished, here is a selection of interesting paper
    • JavaScript for extending low-latency in-memory key-value stores : Adrian Colyer takes a look at in memory javascript engine using RamCloud. RamCloud project is entering the use case phase of the research project,  eyeing the comercialisation. Sadly most solution put forward are extremely niche. The risk is for great people to be stuck in a zombie startup if they try to run with it. Taking separately, the tech that came out of the RamCloud project is amazing. However, the solution as a whole doesn't really have a great killer app or any potential beyond some niche market.  [paper]
    • Towards Index-based Global Trading in Cloud Spot Markets :  the authors propose to use an index based prediction model rather than per spot instance in order to obtain greater reliability at lower cost.
    • DAL: A Locality-Optimizing Distributed Shared Memory System :  Different take on the whole in memory K/V system, the authors aggressively move the data to the computation rather than offering remote access. This allows great data reuse. We used something similar in hecatonchire. However, there is a certain risk when you have a high level of churn or serial data access and local caching of data generate a high level of eviction, effectively doubling the bandwidth usage. 
    • Leader or Majority: Why have one when you can have both? : raft is a great consensus protocol ( and easier to understand). However, the over reliance on the leader is the main bottleneck for scalability of operations. The authors ( from cockroachdb ) propose a quorum based read operations that allow alleviating the load on the leader while still retaining strong consistency. This allows them to improve write by 4x write perf and increase throughput by 60%. Which is quite impressive. 
    • DCCast: Efficient Point to Multipoint Transfers Across Datacenters : the authors proposed an efficient multipoint data transfer protocol allowing greater efficiency and bandwidth usage.

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