Luca Becchetti

118 papers A* 16A 13B 8C 2Journal 59Unranked 17
YearRankTypeTitle / Venue / Authors
2025 J jnl
Approximate 2-hop neighborhoods on incremental graphs: An efficient lazy approach.
CoRR
Luca Becchetti, Andrea Clementi, Luciano Gualà, Luca Pepè Sciarria, Alessandro Straziota, Matteo Stromieri
2025 J jnl
Approximate 2-hop neighborhoods on incremental graphs: An efficient lazy approach.
Proc. VLDB Endow.
Luca Becchetti, Andrea Clementi, Luciano Gualà, Luca Pepè Sciarria, Alessandro Straziota, Matteo Stromieri
2025 J jnl
Fair Projections as a Means toward Balanced Recommendations.
ACM Trans. Intell. Syst. Technol.
Aris Anagnostopoulos, Luca Becchetti, Matteo Böhm, Adriano Fazzone, Stefano Leonardi, Cristina Menghini, Chris Schwiegelshohn
2024 J jnl
Bond percolation in small-world graphs with power-law distribution.
Theor. Comput. Sci.
Luca Becchetti, Andrea Clementi, Francesco Pasquale, Luca Trevisan, Isabella Ziccardi
2024 A* conf
The Minority Dynamics and the Power of Synchronicity.
SODA
Luca Becchetti, Andrea Clementi, Francesco Pasquale, Luca Trevisan, Robin Vacus, Isabella Ziccardi
2023 — conf
Bond Percolation in Small-World Graphs with Power-Law Distribution.
SAND
Luca Becchetti, Andrea Clementi, Francesco Pasquale, Luca Trevisan, Isabella Ziccardi
2023 J jnl
Expansion and flooding in dynamic random networks with node churn.
Random Struct. Algorithms
Luca Becchetti, Andrea Clementi, Francesco Pasquale, Luca Trevisan, Isabella Ziccardi
2023 A conf
On a Voter Model with Context-Dependent Opinion Adoption.
AAMAS
Luca Becchetti, Vincenzo Bonifaci, Emilio Cruciani, Francesco Pasquale
2023 A* conf
On a Voter Model with Context-Dependent Opinion Adoption.
IJCAI
Luca Becchetti, Vincenzo Bonifaci, Emilio Cruciani, Francesco Pasquale
2023 J jnl
On a Voter Model with Context-Dependent Opinion Adoption.
CoRR
Luca Becchetti, Vincenzo Bonifaci, Emilio Cruciani, Francesco Pasquale
2023 A* conf
On the Role of Memory in Robust Opinion Dynamics.
IJCAI
Luca Becchetti, Andrea Clementi, Amos Korman, Francesco Pasquale, Luca Trevisan, Robin Vacus
2023 J jnl
On the Role of Memory in Robust Opinion Dynamics.
CoRR
Luca Becchetti, Andrea Clementi, Amos Korman, Francesco Pasquale, Luca Trevisan, Robin Vacus
2023 J jnl
The Minority Dynamics and the Power of Synchronicity.
CoRR
Luca Becchetti, Andrea Clementi, Francesco Pasquale, Luca Trevisan, Robin Vacus, Isabella Ziccardi
2022 J jnl
Biased opinion dynamics: when the devil is in the details.
Inf. Sci.
Aris Anagnostopoulos, Luca Becchetti, Emilio Cruciani, Francesco Pasquale, Sara Rizzo
2022 J jnl
Biological Random Walks: multi-omics integration for disease gene prioritization.
Bioinform.
Michele Gentili, Leonardo Martini, Marialuisa Sponziello, Luca Becchetti
2022 J jnl
Bond Percolation in Small-World Graphs with Power-Law Distribution.
CoRR
Luca Becchetti, Andrea Clementi, Francesco Pasquale, Luca Trevisan, Isabella Ziccardi
2022 J jnl
On the Multidimensional Random Subset Sum Problem.
CoRR
Luca Becchetti, Arthur Carvalho Walraven da Cunha, Andrea Clementi, Francesco d'Amore, Hicham Lesfari, Emanuele Natale, Luca Trevisan
2022 B conf
Percolation and Epidemic Processes in One-Dimensional Small-World Networks - (Extended Abstract).
LATIN
Luca Becchetti, Andrea Clementi, Riccardo Denni, Francesco Pasquale, Luca Trevisan, Isabella Ziccardi
2021 A conf
Expansion and Flooding in Dynamic Random Networks with Node Churn.
ICDCS
Luca Becchetti, Andrea Clementi, Francesco Pasquale, Luca Trevisan, Isabella Ziccardi
2021 J jnl
Network and Sequence-Based Prediction of Protein-Protein Interactions.
CoRR
Luca Becchetti, Adriano Fazzone, Leonardo Martini
2021 J jnl
Sharp Thresholds for a SIR Model on One-Dimensional Small-World Networks.
CoRR
Luca Becchetti, Andrea Clementi, Riccardo Denni, Francesco Pasquale, Luca Trevisan, Isabella Ziccardi
2020 J jnl
Biased Opinion Dynamics: When the Devil Is in the Details.
CoRR
Aris Anagnostopoulos, Luca Becchetti, Emilio Cruciani, Francesco Pasquale, Sara Rizzo
2020 A* conf
Biased Opinion Dynamics: When the Devil is in the Details.
IJCAI
Aris Anagnostopoulos, Luca Becchetti, Emilio Cruciani, Francesco Pasquale, Sara Rizzo
2020 J jnl
Biological Random Walks: integrating heterogeneous data in disease gene prioritization.
CoRR
Michele Gentili, Leonardo Martini, Manuela Petti, Lorenzo Farina, Luca Becchetti
2020 J jnl
Consensus Dynamics: An Overview.
SIGACT News
Luca Becchetti, Andrea Clementi, Emanuele Natale
2020 J jnl
Expansion and Flooding in Dynamic Random Networks with Node Churn.
CoRR
Luca Becchetti, Andrea Clementi, Francesco Pasquale, Luca Trevisan, Isabella Ziccardi
2020 J jnl
Find Your Place: Simple Distributed Algorithms for Community Detection.
SIAM J. Comput.
Luca Becchetti, Andrea E. F. Clementi, Emanuele Natale, Francesco Pasquale, Luca Trevisan
2020 A* conf
Finding a Bounded-Degree Expander Inside a Dense One.
SODA
Luca Becchetti, Andrea Clementi, Emanuele Natale, Francesco Pasquale, Luca Trevisan
2020 A conf
Spectral Relaxations and Fair Densest Subgraphs.
CIKM
Aris Anagnostopoulos, Luca Becchetti, Adriano Fazzone, Cristina Menghini, Chris Schwiegelshohn
2020 J jnl
Step-by-step community detection in volume-regular graphs.
Theor. Comput. Sci.
Luca Becchetti, Emilio Cruciani, Francesco Pasquale, Sara Rizzo
2019 C conf
Biological Random Walks: Integrating heterogeneous data in disease gene prioritization.
CIBCB
Michele Gentili, Leonardo Martini, Manuela Petti, Lorenzo Farina, Luca Becchetti
2019 A* conf
Oblivious dimension reduction for
STOC
Luca Becchetti, Marc Bury, Vincent Cohen-Addad, Fabrizio Grandoni, Chris Schwiegelshohn
2019 J jnl
Principal Fairness: \\ Removing Bias via Projections.
CoRR
Aris Anagnostopoulos, Luca Becchetti, Matteo Böhm, Adriano Fazzone, Stefano Leonardi, Cristina Menghini, Chris Schwiegelshohn
2019 J jnl
Self-stabilizing repeated balls-into-bins.
Distributed Comput.
Luca Becchetti, Andrea Clementi, Emanuele Natale, Francesco Pasquale, Gustavo Posta
2019 B conf
Step-By-Step Community Detection in Volume-Regular Graphs.
ISAAC
Luca Becchetti, Emilio Cruciani, Francesco Pasquale, Sara Rizzo
2019 J jnl
Step-by-Step Community Detection for Volume-Regular Graphs.
CoRR
Luca Becchetti, Emilio Cruciani, Francesco Pasquale, Sara Rizzo
2018 A conf
Average Whenever You Meet: Opportunistic Protocols for Community Detection.
ESA
Luca Becchetti, Andrea Clementi, Pasin Manurangsi, Emanuele Natale, Francesco Pasquale, Prasad Raghavendra, Luca Trevisan
2018 J jnl
Finding a Bounded-Degree Expander Inside a Dense One.
CoRR
Luca Becchetti, Andrea Clementi, Emanuele Natale, Francesco Pasquale, Luca Trevisan
2018 A conf
Pooling or Sampling: Collective Dynamics for Electrical Flow Estimation.
AAMAS
Luca Becchetti, Vincenzo Bonifaci, Emanuele Natale
2018 J jnl
Pooling or Sampling: Collective Dynamics for Electrical Flow Estimation.
CoRR
Luca Becchetti, Vincenzo Bonifaci, Emanuele Natale
2018 — ed.
Proceedings of the 9th Italian Information Retrieval Workshop, Rome, Italy, May, 28-30, 2018.
IIR
Nicola Tonellotto, Luca Becchetti, Marko Tkalcic
2017 A* conf
Find Your Place: Simple Distributed Algorithms for Community Detection.
SODA
Luca Becchetti, Andrea Clementi, Emanuele Natale, Francesco Pasquale, Luca Trevisan
2017 J jnl
Friend or Foe? Population Protocols can perform Community Detection.
CoRR
Luca Becchetti, Andrea Clementi, Emanuele Natale, Francesco Pasquale, Prasad Raghavendra, Luca Trevisan
2017 J jnl
Performance improvements for search systems using an integrated cache of lists + intersections.
Inf. Retr. J.
Gabriel Tolosa, Esteban Feuerstein, Luca Becchetti, Alberto Marchetti-Spaccamela
2017 J jnl
Simple dynamics for plurality consensus.
Distributed Comput.
Luca Becchetti, Andrea Clementi, Emanuele Natale, Francesco Pasquale, Riccardo Silvestri, Luca Trevisan
2017 J jnl
Tour recommendation for groups.
Data Min. Knowl. Discov.
Aris Anagnostopoulos, Reem Atassi, Luca Becchetti, Adriano Fazzone, Fabrizio Silvestri
2016 — ch.
Flow Time Minimization.
Encyclopedia of Algorithms
Luca Becchetti, Stefano Leonardi, Alberto Marchetti-Spaccamela, Kirk Pruhs
2016 A* conf
Stabilizing Consensus with Many Opinions.
SODA
Luca Becchetti, Andrea Clementi, Emanuele Natale, Francesco Pasquale, Luca Trevisan
2015 J jnl
Find Your Place: Simple Distributed Algorithms for Community Detection.
CoRR
Luca Becchetti, Andrea Clementi, Emanuele Natale, Francesco Pasquale, Luca Trevisan
2015 J jnl
Inefficiency of Games with Social Context.
Theory Comput. Syst.
Aris Anagnostopoulos, Luca Becchetti, Bart de Keijzer, Guido Schäfer
2015 — conf
P. polycephalum Can Compute Shortest Paths.
BICT
Luca Becchetti, Vincenzo Bonifaci, Michael Dirnberger, Andreas Karrenbauer, Kurt Mehlhorn, Girish Varma
2015 A* conf
Plurality Consensus in the Gossip Model.
SODA
Luca Becchetti, Andrea Clementi, Emanuele Natale, Francesco Pasquale, Riccardo Silvestri
2015 J jnl
Probabilistic Self-Stabilization.
CoRR
Luca Becchetti, Andrea Clementi, Emanuele Natale, Francesco Pasquale
2015 B conf
Self-Stabilizing Repeated Balls-into-Bins.
SPAA
Luca Becchetti, Andrea Clementi, Emanuele Natale, Francesco Pasquale, Gustavo Posta
2015 J jnl
Self-Stabilizing Repeated Balls-into-Bins.
CoRR
Luca Becchetti, Andrea Clementi, Emanuele Natale, Francesco Pasquale, Gustavo Posta
2015 J jnl
Stabilizing Consensus with Many Opinions.
CoRR
Luca Becchetti, Andrea Clementi, Emanuele Natale, Francesco Pasquale, Luca Trevisan
2015 J jnl
Stochastic Query Covering for Fast Approximate Document Retrieval.
ACM Trans. Inf. Syst.
Aris Anagnostopoulos, Luca Becchetti, Ilaria Bordino, Stefano Leonardi, Ida Mele, Piotr Sankowski
2015 — conf
The Importance of Being Expert: Efficient Max-Finding in Crowdsourcing.
SIGMOD Conference
Aris Anagnostopoulos, Luca Becchetti, Adriano Fazzone, Ida Mele, Matteo Riondato
2014 J jnl
A lightweight privacy preserving SMS-based recommendation system for mobile users.
Knowl. Inf. Syst.
Luca Becchetti, Lorenzo Bergamini, Ugo Maria Colesanti, Luca Filipponi, Giuseppe Persiano, Andrea Vitaletti
2014 J jnl
Flooding Time in Opportunistic Networks under Power Law and Exponential Intercontact Times.
IEEE Trans. Parallel Distributed Syst.
Luca Becchetti, Andrea Clementi, Francesco Pasquale, Giovanni Resta, Paolo Santi, Riccardo Silvestri
2014 C conf
Performance Improvements for Search Systems Using an Integrated Cache of Lists+Intersections.
SPIRE
Gabriel Tolosa, Luca Becchetti, Esteban Feuerstein, Alberto Marchetti-Spaccamela
2014 J jnl
Plurality Consensus in the Gossip Model.
CoRR
Luca Becchetti, Andrea Clementi, Emanuele Natale, Francesco Pasquale, Riccardo Silvestri
2014 B conf
Simple dynamics for plurality consensus.
SPAA
Luca Becchetti, Andrea Clementi, Emanuele Natale, Francesco Pasquale, Riccardo Silvestri, Luca Trevisan
2013 B conf
Inefficiency of Games with Social Context.
SAGT
Aris Anagnostopoulos, Luca Becchetti, Bart de Keijzer, Guido Schäfer
2013 — conf
Physarum Can Compute Shortest Paths: Convergence Proofs and Complexity Bounds.
ICALP (2)
Luca Becchetti, Vincenzo Bonifaci, Michael Dirnberger, Andreas Karrenbauer, Kurt Mehlhorn
2013 J jnl
Simple Dynamics for Majority Consensus.
CoRR
Luca Becchetti, Andrea Clementi, Emanuele Natale, Francesco Pasquale, Riccardo Silvestri, Luca Trevisan
2012 — conf
First Experiences with the Implementation and Evaluation of Population Protocols on Physical Devices.
GreenCom
Luca Becchetti, Lorenzo Bergamini, Francesco Ficarola, Francesco Salvatore, Andrea Vitaletti
2012 A* conf
Online team formation in social networks.
WWW
Aris Anagnostopoulos, Luca Becchetti, Carlos Castillo, Aristides Gionis, Stefano Leonardi
2012 — conf
Population protocols on real social networks.
PE-WASUN
Luca Becchetti, Lorenzo Bergamini, Francesco Ficarola, Andrea Vitaletti
2012 — conf
Population protocols on real social networks.
SNS
Luca Becchetti, Lorenzo Bergamini, Francesco Ficarola, Andrea Vitaletti
2012 J jnl
Privacy support in people-centric sensing.
J. Commun.
Luca Becchetti, Luca Filipponi, Andrea Vitaletti
2011 J jnl
Information Spreading in Opportunistic Networks is Fast
CoRR
Luca Becchetti, Andrea Clementi, Francesco Pasquale, Giovanni Resta, Paolo Santi, Riccardo Silvestri
2011 — conf
Privacy-Preserving Environment Monitoring in Networks of Mobile Devices.
Networking Workshops
Lorenzo Bergamini, Luca Becchetti, Andrea Vitaletti
2011 J jnl
Recommending items in pervasive scenarios: models and experimental analysis.
Knowl. Inf. Syst.
Luca Becchetti, Ugo Maria Colesanti, Alberto Marchetti-Spaccamela, Andrea Vitaletti
2011 A conf
Stochastic query covering.
WSDM
Aris Anagnostopoulos, Luca Becchetti, Stefano Leonardi, Ida Mele, Piotr Sankowski
2011 J jnl
Streaming techniques and data aggregation in networks of tiny artefacts.
Comput. Sci. Rev.
Luca Becchetti, Ioannis Chatzigiannakis, Yiannis Giannakopoulos
2010 A conf
A lightweight privacy preserving SMS-based recommendation system for mobile users.
RecSys
Elisa Baglioni, Luca Becchetti, Lorenzo Bergamini, Ugo Maria Colesanti, Luca Filipponi, Andrea Vitaletti, Giuseppe Persiano
2010 A conf
An optimization framework for query recommendation.
WSDM
Aris Anagnostopoulos, Luca Becchetti, Carlos Castillo, Aristides Gionis
2010 J jnl
Efficient algorithms for large-scale local triangle counting.
ACM Trans. Knowl. Discov. Data
Luca Becchetti, Paolo Boldi, Carlos Castillo, Aristides Gionis
2010 — conf
Fully decentralized computation of aggregates over data streams.
StreamKDD@KDD
Luca Becchetti, Ilaria Bordino, Stefano Leonardi, Adi Rosén
2010 J jnl
Fully decentralized computation of aggregates over data streams.
SIGKDD Explor.
Luca Becchetti, Ilaria Bordino, Stefano Leonardi, Adi Rosén
2010 A conf
Power in unity: forming teams in large-scale community systems.
CIKM
Aris Anagnostopoulos, Luca Becchetti, Carlos Castillo, Aristides Gionis, Stefano Leonardi
2009 — conf
Competitive Analysis of Aggregate Max in Windowed Streaming.
ICALP (1)
Luca Becchetti, Elias Koutsoupias
2009 J jnl
Latency-constrained aggregation in sensor networks.
ACM Trans. Algorithms
Luca Becchetti, Alberto Marchetti-Spaccamela, Andrea Vitaletti, Peter Korteweg, Martin Skutella, Leen Stougie
2008 A* conf
Efficient semi-streaming algorithms for local triangle counting in massive graphs.
KDD
Luca Becchetti, Paolo Boldi, Carlos Castillo, Aristides Gionis
2008 — ch.
Flow Time Minimization.
Encyclopedia of Algorithms
Luca Becchetti, Stefano Leonardi, Alberto Marchetti-Spaccamela, Kirk Pruhs
2008 J jnl
Link analysis for Web spam detection.
ACM Trans. Web
Luca Becchetti, Carlos Castillo, Debora Donato, Ricardo Baeza-Yates, Stefano Leonardi
2008 — conf
Self-Adaptive Recommendation Systems: Models and Experimental Analysis.
SASO
Luca Becchetti, Ugo Maria Colesanti, Alberto Marchetti-Spaccamela, Andrea Vitaletti
2007 J jnl
Sharing the cost more efficiently: Improved approximation for multicommodity rent-or-buy.
ACM Trans. Algorithms
Luca Becchetti, Jochen Könemann, Stefano Leonardi, Martin Pál
2006 J jnl
A reference collection for web spam.
SIGIR Forum
Carlos Castillo, Debora Donato, Luca Becchetti, Paolo Boldi, Stefano Leonardi, Massimo Santini, Sebastiano Vigna
2006 J jnl
Average-Case and Smoothed Competitive Analysis of the Multilevel Feedback Algorithm.
Math. Oper. Res.
Luca Becchetti, Stefano Leonardi, Alberto Marchetti-Spaccamela, Guido Schäfer, Tjark Vredeveld
2006 A conf
Latency Constrained Aggregation in Sensor Networks.
ESA
Luca Becchetti, Peter Korteweg, Alberto Marchetti-Spaccamela, Martin Skutella, Leen Stougie, Andrea Vitaletti
2006 — conf
Link-Based Characterization and Detection of Web Spam.
AIRWeb
Luca Becchetti, Carlos Castillo, Debora Donato, Stefano Leonardi, Ricardo A. Baeza-Yates
2006 J jnl
Online weighted flow time and deadline scheduling.
J. Discrete Algorithms
Luca Becchetti, Stefano Leonardi, Alberto Marchetti-Spaccamela, Kirk Pruhs
2006 A* conf
The distribution of pageRank follows a power-law only for particular values of the damping factor.
WWW
Luca Becchetti, Carlos Castillo
2005 — conf
Average Case and Smoothed Competitive Analysis of the Multi-Level Feedback Algorithm.
Algorithms for Optimization with Incomplete Information
Luca Becchetti, Stefano Leonardi, Alberto Marchetti-Spaccamela, Guido Schäfer, Tjark Vredeveld
2005 J jnl
Parallel scheduling problems in next generation wireless networks.
Networks
Luca Becchetti, Stefano Leonardi, Alberto Marchetti-Spaccamela, Andrea Vitaletti, Suhas N. Diggavi, S. Muthukrishnan, Thyagarajan Nandagopal
2005 A* conf
Sharing the cost more efficiently: improved approximation for multicommodity rent-or-buy.
SODA
Luca Becchetti, Jochen Könemann, Stefano Leonardi, Martin Pál
2004 J jnl
Approximating call-scheduling makespan in all-optical networks.
J. Discrete Algorithms
Luca Becchetti, Miriam Di Ianni, Alberto Marchetti-Spaccamela
2004 J jnl
Average stretch without migration.
J. Comput. Syst. Sci.
Luca Becchetti, Stefano Leonardi, S. Muthukrishnan
2004 A conf
Modeling Locality: A Probabilistic Analysis of LRU and FWF.
ESA
Luca Becchetti
2004 J jnl
Nonclairvoyant scheduling to minimize the total flow time on single and parallel machines.
J. ACM
Luca Becchetti, Stefano Leonardi
2004 J jnl
Semi-clairvoyant scheduling.
Theor. Comput. Sci.
Luca Becchetti, Stefano Leonardi, Alberto Marchetti-Spaccamela, Kirk Pruhs
2003 A* conf
Average Case and Smoothed Competitive Analysis of the Multi-Level Feedback Algorithm.
FOCS
Luca Becchetti, Stefano Leonardi, Alberto Marchetti-Spaccamela, Guido Schäfer, Tjark Vredeveld
2003 A conf
Scheduling to Minimize Flow Time Metrics.
IPDPS
Luca Becchetti, Stefano Leonardi, Alberto Marchetti-Spaccamela, Guido Schäfer
2003 A conf
Semi-clairvoyant Scheduling.
ESA
Luca Becchetti, Stefano Leonardi, Alberto Marchetti-Spaccamela, Kirk Pruhs
2002 J jnl
Approximation algorithms for routing and call scheduling in all-optical chains and rings.
Theor. Comput. Sci.
Luca Becchetti, Miriam Di Ianni, Alberto Marchetti-Spaccamela
2002 J jnl
On the design of efficient ATM routing schemes.
Theor. Comput. Sci.
Luca Becchetti, Paola Bertolazzi, Carlo Gaibisso, Giorgio Gambosi
2002 B conf
Parallel scheduling problems in next generation wireless networks.
SPAA
Luca Becchetti, Suhas N. Diggavi, Stefano Leonardi, Alberto Marchetti-Spaccamela, S. Muthukrishnan, Thyagarajan Nandagopal, Andrea Vitaletti
2001 — conf
A Java Implementation of a Reliable Multicast File Transfer Protocol: Design and Evaluation.
IMSA
Luca Becchetti, Mauro Draoli, Carlo Gaibisso, Flavio Lombardi
2001 J jnl
Enhancing IP service provision over heterogeneous wireless networks: a path toward 4G.
IEEE Commun. Mag.
Luca Becchetti, Francesco Delli Priscoli, Tiziano Inzerilli, Petri Mähönen, Luis Muñoz
2001 A* conf
Non-clairvoyant scheduling to minimize the average flow time on single and parallel machines.
STOC
Luca Becchetti, Stefano Leonardi
2001 — conf
Online Weighted Flow Time and Deadline Scheduling.
RANDOM-APPROX
Luca Becchetti, Stefano Leonardi, Alberto Marchetti-Spaccamela, Kirk Pruhs
2000 B conf
Approximating Call-Scheduling Makespan in All-Optical Networks.
WG
Luca Becchetti, Miriam Di Ianni, Alberto Marchetti-Spaccamela
2000 A* conf
Scheduling to minimize average stretch without migration.
SODA
Luca Becchetti, Stefano Leonardi, S. Muthukrishnan
1999 — conf
Approximation Algorithms for Routing and Call Scheduling in All-Optical Chains and Rings.
FSTTCS
Luca Becchetti, Miriam Di Ianni, Alberto Marchetti-Spaccamela
1997 B conf
Lower Bounds for the Virtual Path Layout Problem in ATM Networks.
SOFSEM
Luca Becchetti, Carlo Gaibisso
1997 — conf
On the Embedding of Refinements of 2-dimensional Grids.
Euro-Par
Fabrizio d'Amore, Luca Becchetti, Sergei L. Bezrukov, Alberto Marchetti-Spaccamela, M. Ottaviani, Robert Preis, Markus Röttger, Ulf-Peter Schroeder