human: Given a node-centered hypergraph: <hypergraph>, where nodes represent papers and hyperedges represent sets of papers co-cited by a source paper.

Details of the hypergraph:
Center node: "clustered integer 3sum via additive combinatorics"
  Abstract: We present a collection of new results on problems related to 3SUM, including: #R##N#1. The first truly subquadratic algorithm for #R##N#$\ \ \ \ \ $ 1a. computing the (min,+) convolution for monotone increasing sequences with integer values bounded by $O(n)$, #R##N#$\ \ \ \ \ $1b. solving 3SUM for monotone sets in 2D with integer coordinates bounded by $O(n)$, and #R##N#$\ \ \ \ \ $1c. preprocessing a binary string for histogram indexing (also called jumbled indexing). #R##N#The running time is: $O(n^{(9+\sqrt{177})/12}\,\textrm{polylog}\,n)=O(n^{1.859})$ with randomization, or $O(n^{1.864})$ deterministically. This greatly improves the previous $n^2/2^{\Omega(\sqrt{\log n})}$ time bound obtained from Williams' recent result on all-pairs shortest paths [STOC'14], and answers an open question raised by several researchers studying the histogram indexing problem. #R##N#2. The first algorithm for histogram indexing for any constant alphabet size that achieves truly subquadratic preprocessing time and truly sublinear query time. #R##N#3. A truly subquadratic algorithm for integer 3SUM in the case when the given set can be partitioned into $n^{1-\delta}$ clusters each covered by an interval of length $n$, for any constant $\delta>0$. #R##N#4. An algorithm to preprocess any set of $n$ integers so that subsequently 3SUM on any given subset can be solved in $O(n^{13/7}\,\textrm{polylog}\,n)$ time. #R##N#All these results are obtained by a surprising new technique, based on the Balog--Szemer\'edi--Gowers Theorem from additive combinatorics.

Connected through hyperedge HE-1 (induced by source paper "all non trivial variants of 3 ldt are equivalent"):
  with members:
    - "the strong 3sum indexing conjecture is false"
    - "3sum with preprocessing algorithms lower bounds and cryptographic applications"
    - "near optimal linear decision trees for k sum and related problems"
    - "how hard is it to find honest witnesses"
    - "improved bounds for 3sum k sum and linear degeneracy"
    - "threesomes degenerates and love triangles"
    - "on hardness of jumbled indexing"
    - "higher lower bounds from the 3sum conjecture"

Connected through hyperedge HE-2 (induced by source paper "generating a gray code for prefix normal words in amortized polylogarithmic time per word"):
  with members:
    - "on collapsing prefix normal words"
    - "bubble flip a new generation algorithm for prefix normal words"
    - "on prefix normal words and prefix normal forms"
    - "on combinatorial generation of prefix normal words"
    - "normal abby normal prefix normal"
    - "on hardness of jumbled indexing"
    - "new algorithms for binary jumbled pattern matching"
    - "binary jumbled pattern matching on trees and tree like structures"

Connected through hyperedge HE-3 (induced by source paper "an optimal algorithm for bisection for bounded treewidth graphs"):
  with members:
    - "known algorithms on graphs of bounded treewidth are probably optimal"

Connected through hyperedge HE-4 (induced by source paper "approximating subset sum is equivalent to min plus convolution"):
  with members:
    - "an improved fptas for 0 1 knapsack"
    - "approximating apsp without scaling equivalence of approximate min plus and exact min max"
    - "on problems equivalent to min convolution"
    - "subquadratic approximation scheme for partition"
    - "fast algorithms for knapsack via convolution and prediction"
    - "an equivalence class for orthogonal vectors"
    - "on integer programming and convolution"
    - "on the hardness of approximate and exact bichromatic maximum inner product"

Connected through hyperedge HE-5 (induced by source paper "data structures meet cryptography 3sum with preprocessing"):
  with members:
    - "the strong 3sum indexing conjecture is false"
    - "equivalence of systematic linear data structures and matrix rigidity"
    - "lower bounds for oblivious data structures"
    - "static data structure lower bounds imply rigidity"
    - "how hard is it to find honest witnesses"
    - "conditional lower bounds for space time tradeoffs"
    - "orthogonal vectors indexing"
    - "popular conjectures imply strong lower bounds for dynamic problems"

Connected through hyperedge HE-6 (induced by source paper "3sum with preprocessing algorithms lower bounds and cryptographic applications"):
  with members:
    - "encoding 3sum"
    - "static data structure lower bounds imply rigidity"
    - "near optimal linear decision trees for k sum and related problems"
    - "conditional lower bounds for space time tradeoffs"
    - "orthogonal vectors indexing"
    - "threesomes degenerates and love triangles"
    - "on hardness of jumbled indexing"
    - "higher lower bounds from the 3sum conjecture"

Connected through hyperedge HE-7 (induced by source paper "on problems equivalent to min convolution"):
  with members:
    - "how hard is it to find honest witnesses"
    - "seth based lower bounds for subset sum and bicriteria path"
    - "on the fine grained complexity of one dimensional dynamic programming"
    - "on problems as hard as cnf sat"
    - "a near linear pseudopolynomial time algorithm for subset sum"
    - "a faster fptas for the unbounded knapsack problem"
    - "a faster pseudopolynomial time algorithm for subset sum"
    - "quadratic conditional lower bounds for string problems and dynamic time warping"

Connected through hyperedge HE-8 (induced by source paper "massively parallel algorithms for string matching with wildcards"):
  with members:
    - "fast algorithms for knapsack via convolution and prediction"
    - "round compression for parallel matching algorithms"
    - "a faster pseudopolynomial time algorithm for subset sum"
    - "space efficient string indexing for wildcard pattern matching"
    - "parallel algorithms for geometric graph problems"
    - "communication steps for parallel query processing"
    - "sorting searching and simulation in the mapreduce framework"

Question: Please tell me which class the center node belongs to. The 40 classes are: cs.NA(Numerical Analysis), cs.MM(Multimedia), cs.LO(Logic in Computer Science), cs.CY(Computers and Society), cs.CR(Cryptography and Security), cs.DC(Distributed, Parallel, and Cluster Computing), cs.HC(Human-Computer Interaction), cs.CE(Computational Engineering, Finance, and Science), cs.NI(Networking and Internet Architecture), cs.CC(Computational Complexity), cs.AI(Artificial Intelligence), cs.MA(Multiagent Systems), cs.GL(General Literature), cs.NE(Neural and Evolutionary Computing), cs.SC(Symbolic Computation), cs.AR(Hardware Architecture), cs.CV(Computer Vision and Pattern Recognition), cs.GR(Graphics), cs.ET(Emerging Technologies), cs.SY(Systems and Control), cs.CG(Computational Geometry), cs.OH(Other Computer Science), cs.PL(Programming Languages), cs.SE(Software Engineering), cs.LG(Machine Learning), cs.SD(Sound), cs.SI(Social and Information Networks), cs.RO(Robotics), cs.IT(Information Theory), cs.PF(Performance), cs.CL(Computation and Language), cs.IR(Information Retrieval), cs.MS(Mathematical Software), cs.FL(Formal Languages and Automata Theory), cs.DS(Data Structures and Algorithms), cs.OS(Operating Systems), cs.GT(Computer Science and Game Theory), cs.DB(Databases), cs.DL(Digital Libraries), cs.DM(Discrete Mathematics). Directly output the class name.

gpt: cs.DS(Data Structures and Algorithms)