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Questions tagged [succinct]

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Encoding of nodes in Binary Decision Diagrams

A straightforward implementation of Binary Decision Diagrams (BDDs) typically requires 12 bytes per node, with an additional 4 bytes commonly used for auxiliary data. Each node is encoded as a 4-tuple ...
Taylor Sasser's user avatar
2 votes
0 answers
185 views

Can an $n$-element subset of a $2n$-element set be stored in $2n - \omega(1)$ bits?

There are $\binom{2n}{n} = \frac{4^n}{\sqrt{\pi n}} \cdot (1 - o(1))$ possible $n$-element subsets of a $2n$-element set. Therefore, any data structure storing such a set must use at least $2n - O(\...
templatetypedef's user avatar
1 vote
0 answers
73 views

Is there a succinct representation of factoring which remains computationally intractable?

I'm looking for a succinct version of the factoring problem: i.e. given integers N and k, does N have a prime factor less than k, but somehow the input takes exponentially fewer bits to input? Ideally ...
Hans Schmuber's user avatar
3 votes
0 answers
93 views

Succinct problems over uniform computational models

For a language $\Pi$, the traditional definition of "Succinct-$\Pi$" is the set of encodings of circuits whose truth tables are members of $\Pi$. This definition is essentially restricted (...
Jake's user avatar
  • 1,234
5 votes
0 answers
106 views

Data structures to store monotone functions

I am looking for approaches storing strictly increasing natural-valued functions defined on a (subset of) $[0..N]$: $$ \forall x \in X: 0 \le x \le N\\ f: X \to \mathbb N\\ \forall x,y\in X:\quad x<...
TZakrevskiy's user avatar
3 votes
1 answer
178 views

CNF encoding of set cover - NExpTime-completness

Notation: given a CNF formula A over variables X, we write $[A(X)]$ for the set of valuations $v: X \to \{0,1\}$ such that $A(X/v)$ is true, i.e. the set of valuations that makes formula A true. I ...
Jean-Francois Raskin's user avatar
2 votes
0 answers
180 views

Time complexity of Succinct-CVP

I want to know what is the best known lower time complexity of Succinct-CVP? The succinct version of many P-complete problems are EXP-complete and Succinct-CVP is EXP-complete too (It is because of ...
Mohsen Ghorbani's user avatar
14 votes
0 answers
475 views

Is there a P-complete language X such that succinct-X is in P?

I came across a paper called "A Note on Succinct Representation of Graphs". It seems that in the discussion section they claim that for any problem $X$ that is $\mathrm{P}$-hard under projections, $\...
Michael Wehar's user avatar
4 votes
0 answers
112 views

A succinct version of permanent that is $EXP$-complete

Succinct version of permanent is $NEXP$-hard (https://eccc.weizmann.ac.il/report/2012/086/) and so unlikely to be $EXP$-complete. Permanent mod $2$ is in $\oplus L$ and so succinct version is ...
Turbo's user avatar
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6 votes
1 answer
569 views

On succinct $EXP$ and $NEXP$ complete problems?

We know succinct version of many $P$-complete problems are $EXP$-complete. There are standard ways to define $EXP$-complete graph problems from succinct representations of these $P$ complete problems. ...
Turbo's user avatar
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1 vote
0 answers
149 views

Information theoretic lower-bound on object graph serialization

This might be a daft quesstion, but here comes. I became intriqued about data serialization formats and tried to look for research on what could be the information theoric lower bound on encoding ...
Veksi's user avatar
  • 111
9 votes
0 answers
199 views

Is there a counting complexity class for succint problems?

Encoding NP-complete problems succintly often makes them NEXP-complete. I am wondering if counting the number of solutions to such a problem with a succint encoding would be any harder than solving ...
Abdallah's user avatar
  • 813
1 vote
0 answers
100 views

What is the name of this data structure? (hash table with a limit on the number of entries)

Denote $[n] \triangleq \{1,2,\ldots,n\}$. Assume we would like to have a data structure $S$ which kinda works as a dictionary from $[k]$ to $[v]$, and supports add/remove/update/query functionality, ...
R B's user avatar
  • 9,508
6 votes
0 answers
120 views

Practical algorithms for finding small arithmetic circuits

I have a multivariate integer polynomial $f : \mathbb{Z}^n \to \mathbb{Z}$ given as either as a circuit or as a list of monomials. I am interested in practical (though obviously exponential time) ...
Geoffrey Irving's user avatar
21 votes
3 answers
1k views

Using Kolmogorov complexity as input "size"

Say we have a computational problem, e.g. 3-SAT, that has a set of problem instances (possible inputs) $S$. Normally in the analysis of algorithms or computational complexity theory, we have some ...
Andrew's user avatar
  • 284
3 votes
1 answer
289 views

Succinct Representation and Communication complexity

Succinct representation is often used to define NEXP or EXP complete problems. For example, when a graph is given as a circuit to compute the existence of edge between vertex $i,j$ for indices of $i,j$...
poul's user avatar
  • 39
9 votes
1 answer
429 views

Who coined the term "empirical entropy"?

I know of Shannon's work with entropy, but lately I have worked on succinct data structures in which empirical entropy is often used as part of the storage analysis. Shannon defined the entropy of ...
deleted user 42's user avatar
47 votes
0 answers
1k views

Problem unsolvable in $2^{o(n)}$ on inputs with $n$ bits, assuming ETH?

If we assume the Exponential-Time Hypothesis, then there is no $2^{o(n)}$ algorithm for $n$-variable 3-SAT, and many other natural problems, such as 3-COLORING on graphs with $n$ vertices. Notice ...
Michael Lampis's user avatar
4 votes
2 answers
259 views

Dynamic and/or practical succinct data structures for triangulations

Does anybody know of any results on succinct data structures for triangulations that can be constructed efficiently, and preferably also updated efficiently? Does anybody know of practical ...
Herman Haverkort's user avatar
5 votes
0 answers
143 views

Succinct graphs with ability to perform random walk

Suppose I have an exponentially large graph $G$ ($|G|=2^n$) supplied with an efficient (of size $poly(n)$) randomized circuit $C_G$ implementing the random walk on $G$ - that is, $C_G$ takes a vertex ...
Marcin Kotowski's user avatar
7 votes
1 answer
231 views

Simple succinct dynamic predecessor with $O(\sqrt{n})$ redundancy in contiguous space

A dynamic predecessor data structure supporting findPredecessor, insert, and delete over ...
jbapple's user avatar
  • 11.2k