@inproceedings{24731,
  author       = {{Wilke, Adrian and Bannoura, Arwa and Ngonga Ngomo, Axel-Cyrille}},
  booktitle    = {{15th {IEEE} International Conference on Semantic Computing, {ICSC} 2021, Laguna Hills, CA, USA, January 27-29, 2021}},
  pages        = {{241--247}},
  publisher    = {{{IEEE}}},
  title        = {{{Relicensing Combined Datasets}}},
  doi          = {{10.1109/ICSC50631.2021.00050}},
  year         = {{2021}},
}

@inproceedings{24732,
  author       = {{Röder, Michael and de Souza, Geraldo and Kuchelev, Denis and Amer Desouki, Abdelmoneim and Ngonga Ngomo, Axel-Cyrille}},
  booktitle    = {{15th {IEEE} International Conference on Semantic Computing, {ICSC} 2021, Laguna Hills, CA, USA, January 27-29, 2021}},
  pages        = {{272--279}},
  publisher    = {{{IEEE}}},
  title        = {{{ORCA - a Benchmark for Data Web Crawlers}}},
  doi          = {{10.1109/ICSC50631.2021.00054}},
  year         = {{2021}},
}

@phdthesis{24887,
  author       = {{Hinnenthal, Kristian}},
  title        = {{{Models and Algorithms for Hybrid Networks and Hybrid Programmable Matter}}},
  doi          = {{10.17619/UNIPB/1-1169 }},
  year         = {{2021}},
}

@misc{25126,
  abstract     = {{Motivated by the prospect of computing agents that explore unknown environments and construct convex hulls on the nanoscale, we investigate the capabilities and limitations of a single deterministic finite automaton robot in the three-dimensional hybrid model for programmable matter. In this model, active robots move on a set of passive tiles, called configuration, with the geometric shape of rhombic dodecahedra on the adjacency graph of the face-centered cubic sphere-packing. We show that the exploration problem is equally hard in the hybrid model and in three-dimensional mazes, in which tiles have the shape of cubes and are positioned at the vertices of $\mathbb{Z}^3$. Thereby, a single robot with a constant number of pebbles cannot solve this problem in the hybrid model on arbitrary configurations. We provide algorithms for a robot with two pebbles that solve the exploration problem in the subclass of compact configurations of size $n$ in $\O(n^3)$ rounds. Further, we investigate the robot's capabilities of detection and hull construction in terms of restricted orientation convexity. We show that a robot without any pebble can detect strong $\O$-convexity in $\O(n)$ rounds, but cannot detect weak $\O$-convexity, not even if provided with a single pebble. Assuming that a robot can construct tiles from scratch and deconstruct previously constructed tiles, we show that the strong $\O$-hull of any given configuration of size $n$ can be constructed in $\O(n^4)$ rounds, even if the robot cannot distinguish constructed from native tiles.}},
  author       = {{Liedtke, David Jan}},
  keywords     = {{Robot Exploration, Finite Automaton, Hybrid Model for Programmable Matter, Convex Hull}},
  title        = {{{Exploration and Convex Hull Construction in the Three-Dimensional Hybrid Model}}},
  year         = {{2021}},
}

@inproceedings{25203,
  author       = {{Alexandra Morim da Silva, Ana and Röder, Michael and Ngonga Ngomo, Axel-Cyrille}},
  booktitle    = {{The Semantic Web - {ISWC} 2021 - 20th International Semantic Web Conference, {ISWC} 2021, Virtual Event, October 24-28, 2021, Proceedings}},
  editor       = {{Hotho, Andreas and Blomqvist, Eva and Dietze, Stefan and Fokoue, Achille and Ding, Ying and M. Barnaghi, Payam and Haller, Armin and Dragoni, Mauro and Alani, Harith}},
  pages        = {{270--286}},
  publisher    = {{Springer}},
  title        = {{{Using Compositional Embeddings for Fact Checking}}},
  doi          = {{10.1007/978-3-030-88361-4\_16}},
  volume       = {{12922}},
  year         = {{2021}},
}

@inproceedings{25206,
  author       = {{Demir, Caglar and Ngonga Ngomo, Axel-Cyrille}},
  booktitle    = {{The Semantic Web - 18th International Conference, {ESWC} 2021, Virtual Event, June 6-10, 2021, Proceedings}},
  editor       = {{Verborgh, Ruben and Hose, Katja and Paulheim, Heiko and Champin, Pierre{-}Antoine and Maleshkova, Maria and Corcho, Oscar and Ristoski, Petar and Alam, Mehwish}},
  pages        = {{409--424}},
  publisher    = {{Springer}},
  title        = {{{Convolutional Complex Knowledge Graph Embeddings}}},
  doi          = {{10.1007/978-3-030-77385-4\_24}},
  volume       = {{12731}},
  year         = {{2021}},
}

@inproceedings{25208,
  author       = {{Speck, Ren{\'{e}} and Moussallem, Diego and Ngonga Ngomo, Axel-Cyrille}},
  booktitle    = {{15th {IEEE} International Conference on Semantic Computing, {ICSC} 2021, Laguna Hills, CA, USA, January 27-29, 2021}},
  pages        = {{298--305}},
  publisher    = {{{IEEE}}},
  title        = {{{Twitter Network Mimicking for Data Storage Benchmarking}}},
  doi          = {{10.1109/ICSC50631.2021.00057}},
  year         = {{2021}},
}

@article{25209,
  author       = {{Demir, Caglar and Moussallem, Diego and Ngonga Ngomo, Axel-Cyrille}},
  journal      = {{CoRR}},
  title        = {{{A shallow neural model for relation prediction}}},
  volume       = {{abs/2101.09090}},
  year         = {{2021}},
}

@article{25210,
  author       = {{Ali, Waqas and Saleem, Muhammad and Yao, Bin and Hogan, Aidan and Ngonga Ngomo, Axel-Cyrille}},
  journal      = {{CoRR}},
  title        = {{{A Survey of RDF Stores \& SPARQL Engines for Querying Knowledge Graphs}}},
  volume       = {{abs/2102.13027}},
  year         = {{2021}},
}

@article{25211,
  author       = {{Vollmers, Daniel and Jalota, Rricha and Moussallem, Diego and Topiwala, Hardik and Ngonga Ngomo, Axel-Cyrille and Usbeck, Ricardo}},
  journal      = {{CoRR}},
  title        = {{{Knowledge Graph Question Answering using Graph-Pattern Isomorphism}}},
  volume       = {{abs/2103.06752}},
  year         = {{2021}},
}

@article{25213,
  author       = {{Sharma, Arnab and Demir, Caglar and Ngonga Ngomo, Axel-Cyrille and Wehrheim, Heike}},
  journal      = {{CoRR}},
  title        = {{{MLCheck- Property-Driven Testing of Machine Learning Models}}},
  volume       = {{abs/2105.00741}},
  year         = {{2021}},
}

@article{25214,
  author       = {{Wilke, Adrian and Ngonga Ngomo, Axel-Cyrille}},
  journal      = {{CoRR}},
  title        = {{{Open Data Portal Germany (OPAL) Projektergebnisse}}},
  volume       = {{abs/2105.03161}},
  year         = {{2021}},
}

@article{25215,
  author       = {{Demir, Caglar and Ngonga Ngomo, Axel-Cyrille}},
  journal      = {{CoRR}},
  title        = {{{Out-of-Vocabulary Entities in Link Prediction}}},
  volume       = {{abs/2105.12524}},
  year         = {{2021}},
}

@article{25217,
  author       = {{Demir, Caglar and Ngonga Ngomo, Axel-Cyrille}},
  journal      = {{CoRR}},
  title        = {{{DRILL- Deep Reinforcement Learning for Refinement Operators in ALC}}},
  volume       = {{abs/2106.15373}},
  year         = {{2021}},
}

@inproceedings{25331,
  author       = {{Brinkmann, Marcus and Dresen, Christian and Merget, Robert and Poddebniak, Damian and Müller, Jens and Somorovsky, Juraj and Schwenk, Jörg and Schinzel, Sebastian}},
  booktitle    = {{30th {USENIX} Security Symposium ({USENIX} Security 21)}},
  isbn         = {{978-1-939133-24-3}},
  pages        = {{4293--4310}},
  publisher    = {{{USENIX} Association}},
  title        = {{{ALPACA: Application Layer Protocol Confusion - Analyzing and Mitigating Cracks in TLS Authentication}}},
  year         = {{2021}},
}

@inproceedings{25332,
  author       = {{Merget, Robert and Brinkmann, Marcus and Aviram, Nimrod and Somorovsky, Juraj and Mittmann, Johannes and Schwenk, Jörg}},
  booktitle    = {{30th {USENIX} Security Symposium ({USENIX} Security 21)}},
  isbn         = {{978-1-939133-24-3}},
  pages        = {{213--230}},
  publisher    = {{{USENIX} Association}},
  title        = {{{Raccoon Attack: Finding and Exploiting Most-Significant-Bit-Oracles in TLS-DH(E)}}},
  year         = {{2021}},
}

@proceedings{25521,
  editor       = {{Schulte, Carsten and A. Becker, Brett and Divitini, Monica and Barendsen, Erik}},
  isbn         = {{978-1-4503-8397-4}},
  publisher    = {{ACM}},
  title        = {{{ITiCSE 2021: 26th ACM Conference on Innovation and Technology in Computer Science Education, Virtual Event, Germany, June 26 - July 1, 2021 - Working Group Reports}}},
  doi          = {{10.1145/3456565}},
  year         = {{2021}},
}

@proceedings{25522,
  editor       = {{Schulte, Carsten and A. Becker, Brett and Divitini, Monica and Barendsen, Erik}},
  isbn         = {{978-1-4503-8214-4}},
  publisher    = {{ACM}},
  title        = {{{ITiCSE 2021: 26th ACM Conference on Innovation and Technology in Computer Science Education, Virtual Event, Germany, June 26 - July 1, 2021}}},
  doi          = {{10.1145/3430665}},
  year         = {{2021}},
}

@inproceedings{25525,
  author       = {{Große-Bölting, Gregor and Gerstenberger, Dietrich Karl-Heinz and Gildehaus, Lara and Mühling, Andreas and Schulte, Carsten}},
  booktitle    = {{ICER 2021: ACM Conference on International Computing Education Research, Virtual Event, USA, August 16-19, 2021}},
  editor       = {{J. Ko, Amy and Vahrenhold, Jan and McCauley, René and Hauswirth, Matthias}},
  pages        = {{169--183}},
  publisher    = {{ACM}},
  title        = {{{Identity in K-12 Computer Education Research: A Systematic Literature Review}}},
  doi          = {{10.1145/3446871.3469757}},
  year         = {{2021}},
}

@article{25527,
  author       = {{Schulte, Carsten and A. Becker, Brett}},
  journal      = {{ACM SIGCSE Bull.}},
  number       = {{3}},
  pages        = {{3--4}},
  title        = {{{ITiCSE 2021 recap}}},
  doi          = {{10.1145/3483403.3483405}},
  volume       = {{53}},
  year         = {{2021}},
}