Java Hyd Team
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Java Hyd Team pinned ยซOn Sunday if you guys are available I will conduct one masterclass for end to end FullStack related to the concept not for programming will clear each n every concept with real-time implementation of that particular keywordยป
Just focus on the concept of today's paper
ALGORITHM YOU SHOULD KNOW for PREPARING SYSTEM DESIGN INTERVIEW ๐Ÿ’ก

๐Ÿ”บREQUIREMENTS :-
KNOW WHEN TO USE
KNOW HOW IT WORKS

โ—พ1) BLOOM FILTER
It is a data structure designed to tell you, rapidly and memory-efficiently, whether an element is present in a set.
- use case :: Build a Web crawler

โ—พ2) FRUGAL STREAMING
It uses only one unit of memory per group to compute a quantile for each group.
-use case :: Find the nth percentile of the data stream.

โ—พ3) GEOHASH/ S2 GEOMETRY
A collection of efficient yet exact mathematical predicates for testing relationships among geometric primitives.
-use case :: Location-based search results with DynamoDb and Geohash.

โ—พ4) HYPERLOGLOG
It is an algorithm for the count-distinct problem, approximating the number of distinct elements in a multiset.
-use case :: privacy-preserving traffic heat map for the city.

โ—พ5) LEAKY BUCKET/ TOKEN BUCKET
A mechanism to control the amount and the rate of the traffic sent to the network.
-use case :: Design a scalable rate-limiting algorithm.

โ—พ6) LOSSY COUNT
It is used to identify elements in a data stream whose frequency count exceeds a user-given threshold.
-use case :: Frequency count over the data streams.

โ—พ7) OPERATIONAL TRANSFORMATION
It is used for supporting a range of collaboration functionalities in advanced collaborative software systems.
-use case :: Handling editing collision in Google docs.

โ—พ8) QUADTREE/ RTREE
It is a two-dimensional analog of octrees and is most often used to partition a two-dimensional space by recursively subdividing it into four quadrants or regions.
-use case :: Find nearby interest points

โ—พ9) RAY CASTING
It is the most basic of many computer graphics rendering algo that uses geometric algo of ray tracing.
-use case :: Using longitude and latitude, return the Country of the point.

โ—พ10) REVERSE INDEX
It is an index of keywords that stores records of documents that contain keywords in the list.
-use case: Building a complete Tweet index.

โ—พ11) RSYNC ALGORITHM
Used for reducing the cost of a file transfer by avoiding the transfer of blocks that are already at the destination.
-use case :: Streaming file Sync

โ—พ12) TRIE ALGORITHM
Trie is an efficient information reTrieval data structure. Using Trie, search complexities can be brought to optimal limit (key length)
-use case :: Autocomplete features using Trie

13) STRING BUFFER
-use case ::  Banking transactions because it follows thread synchronisation

13) STRING BUILDER
-use case ::  BOOKMYSHOW OR IRCTC ticket booking because it NOT following thread synchronisation


collab credit - windsoon / ansh /Aman

#software #design #google #systemdesign #backend #backenddeveloper #softwareengineer #algorithms