Definitions for rehashing
re·hash·ing

WikipediaRate this definition:0.0 / 0 votes

1. rehashing

   Double hashing is a computer programming technique used in conjunction with open addressing in hash tables to resolve hash collisions, by using a secondary hash of the key as an offset when a collision occurs. Double hashing with open addressing is a classical data structure on a table T {\displaystyle T} . The double hashing technique uses one hash value as an index into the table and then repeatedly steps forward an interval until the desired value is located, an empty location is reached, or the entire table has been searched; but this interval is set by a second, independent hash function. Unlike the alternative collision-resolution methods of linear probing and quadratic probing, the interval depends on the data, so that values mapping to the same location have different bucket sequences; this minimizes repeated collisions and the effects of clustering. Given two random, uniform, and independent hash functions h 1 {\displaystyle h_{1}} and h 2 {\displaystyle h_{2}} , the i {\displaystyle i} th location in the bucket sequence for value k {\displaystyle k} in a hash table of | T | {\displaystyle |T|} buckets is: h ( i , k ) = ( h 1 ( k ) + i ⋅ h 2 ( k ) ) mod | T | . {\displaystyle h(i,k)=(h_{1}(k)+i\cdot h_{2}(k)){\bmod {|}}T|.} Generally, h 1 {\displaystyle h_{1}} and h 2 {\displaystyle h_{2}} are selected from a set of universal hash functions; h 1 {\displaystyle h_{1}} is selected to have a range of { 0 , | T | − 1 } {\displaystyle \{0,|T|-1\}} and h 2 {\displaystyle h_{2}} to have a range of { 1 , | T | − 1 } {\displaystyle \{1,|T|-1\}} . Double hashing approximates a random distribution; more precisely, pair-wise independent hash functions yield a probability of ( n / | T | ) 2 {\displaystyle (n/|T|)^{2}} that any pair of keys will follow the same bucket sequence.

How to pronounce rehashing?

1. Alex

   US English

   David

   US English

   Mark

   US English

   Daniel

   British

   Libby

   British

   Mia

   British

   Karen

   Australian

   Hayley

   Australian

   Natasha

   Australian

   Veena

   Indian

   Priya

   Indian

   Neerja

   Indian

   Zira

   US English

   Oliver

   British

   Wendy

   British

   Fred

   US English

   Tessa

   South African

How to say rehashing in sign language?

Numerology

1. Chaldean Numerology

   The numerical value of rehashing in Chaldean Numerology is: 3

2. Pythagorean Numerology

   The numerical value of rehashing in Pythagorean Numerology is: 8

Examples of rehashing in a Sentence

1. Justin Johnson:

   Rehashing the same evidence already considered by Circuit Court is a waste of time and needlessly prolongs the pain for all involved, charles Baltzell has not committed any crime, as Circuit Court has already found, and will once again vigorously defend Charles Baltzell.

2. Democratic State Representative Jonathan Singer:

   The sky hasn't fallen, we have to stop rehashing the fights of old.

3. John Thune:

   But I think any time we're talking about the 2020 election and rehashing that, it takes our eyes off the ultimate prize. And so I think most Republican senators understand that in order for us to be successful as a country that we have to get the majority back in the Senate and that means focusing on the future not the past, we welcome the former president's support of that, but would hope that he would play a constructive role and contribute to helping us win the majority back in 2022.

4. David Tawil:

   If there's no deal anymore and there's no chance for rehashing the one that was voted down, I think there will be a lot of concern, definitely from bondholders, now it seems that there is really no direction. I think that will give a considerable chill to the markets here.

5. Frank Luntz:

   They won't say it, but behind his back, they think he's a child. They're laughing at him... Donald Trump isn't the same man Donald Trump was a year ago. Even many Republicans are tired of going back and rehashing the 2020 election.

Popularity rank by frequency of use

References

1. ^ Wikipedia
   https://en.wikipedia.org/wiki/Rehashing