human: Given a hyperedge-centered hypergraph: <hypergraph>, where the center hyperedge is induced by one source paper and its member nodes are the cited papers.

Details of the hypergraph:
Center hyperedge (induced by source paper "about birds project bioinformatics and information retrieval data structures analysis and design"):
  Abstract: BIRDS stands for "Bioinformatics and Information Retrieval Data Structures analysis and design" and is a 4-year project (2016--2019) that has received funding from the European Union's Horizon 2020 research and innovation programme under the Marie Sklodowska-Curie grant agreement No 690941.   The overall goal of BIRDS is to establish a long term international network involving leading researchers in the development of efficient data structures in the fields of Bioinformatics and Information Retrieval, to strengthen the partnership through the exchange of knowledge and expertise, and to develop integrated approaches to improve current approaches in both fields. The research will address challenges in storing, processing, indexing, searching and navigating genome-scale data by designing new algorithms and data structures for sequence analysis, networks representation or compressing and indexing repetitive data.   BIRDS project is carried out by 7 research institutions from Australia (University of Melbourne), Chile (University of Chile and University of Conception), Finland (University of Helsinki), Japan (Kyushu University), Portugal (Instituto de Engenharia de Sistemas e Computadores, Investigacao e Desenvolvimento em Lisboa, INESC-ID), and Spain (University of A Coruna), and a Spanish SME (Enxenio S.L.). It is coordinated by the University of A Coruna (Spain).

Includes members:
  Member "compact representations of event sequences":
    also connected through other hyperedges:
      (none)
  Member "parallel construction of wavelet trees on multicore architectures":
    also connected through other hyperedges:
      - Hyperedge HE-1 (induced by source paper "improved parallel construction of wavelet trees and rank select structures")
  Member "run compressed rank select for large alphabets":
    also connected through other hyperedges:
      (none)
  Member "efficient compression and indexing of trajectories":
    also connected through other hyperedges:
      - Hyperedge HE-2 (induced by source paper "faster and smaller two level index for network based trajectories")
  Member "grammar compressed sequences with rank select support":
    also connected through other hyperedges:
      (none)
  Member "compressed representation of dynamic binary relations with applications":
    also connected through other hyperedges:
      - Hyperedge HE-3 (induced by source paper "compressed data structures for binary relations in practice")
  Member "a succinct data structure for self indexing ternary relations":
    also connected through other hyperedges:
      - Hyperedge HE-4 (induced by source paper "extending general compact querieable representations to gis applications")
  Member "aggregated 2d range queries on clustered points":
    also connected through other hyperedges:
      - Hyperedge HE-5 (induced by source paper "path query data structures in practice")

Question: Please tell me which class the source paper 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)