| 2021 | ICASSP | Effect of Language Proficiency on Subjective Evaluation of Noise Suppression Algorithms. | Babak Naderi, Gabriel Mittag, Rafael Zequeira Jimnez, Sebastian Mller |
| 2021 | QoMEX | Removing the Bias in Speech Quality Scores Collected in Noisy Crowdsourcing Environments. | Rafael Zequeira Jimnez, Gabriel Mittag, Sebastian Mller |
| 2021 | QoMEX | Influence of Language Differences in Crowdsourcing Speech Quality Assessment Studies. | Rafael Zequeira Jimnez, Babak Naderi, Sebastian Mller |
| 2020 | QoMEX | Effect of Environmental Noise in Speech Quality Assessment Studies using Crowdsourcing. | Rafael Zequeira Jimnez, Babak Naderi, Sebastian Mller |
| 2020 | QoMEX | Impact of the Number of Votes on the Reliability and Validity of Subjective Speech Quality Assessment in the Crowdsourcing Approach. | Babak Naderi, Tobias Hofeld, Matthias Hirth, Florian Metzger, Sebastian Mller, Rafael Zequeira Jimnez |
| 2019 | QoMEX | Modeling Worker Performance Based on Intra-rater Reliability in Crowdsourcing : A Case Study of Speech Quality Assessment. | Rafael Zequeira Jimnez, Anna Llagostera, Babak Naderi, Sebastian Mller, Jens Berger |
| 2019 | QoMEX | Background Environment Characteristics of Crowd-Workers from German Speaking Countries Experimental Survey on User Environment Characteristics. | Rafael Zequeira Jimnez, Babak Naderi, Sebastian Mller |
| 2019 | WWW | Intra- and Inter-rater Agreement in a Subjective Speech Quality Assessment Task in Crowdsourcing. | Rafael Zequeira Jimnez, Anna Llagostera, Babak Naderi, Sebastian Mller, Jens Berger |
| 2018 | ISM | Effect of Number of Stimuli on Users Perception of Different Speech Degradations. A Crowdsourcing Case Study. | Rafael Zequeira Jimnez, Gabriel Mittag, Sebastian Mller |
| 2018 | QoMEX | Influence of Number of Stimuli for Subjective Speech Quality Assessment in Crowdsourcing. | Rafael Zequeira Jimnez, Laura Fernndez Gallardo, Sebastian Mller |
| 2018 | WWW | Outliers Detection vs. Control Questions to Ensure Reliable Results in Crowdsourcing.: A Speech Quality Assessment Case Study. | Rafael Zequeira Jimnez, Laura Fernndez Gallardo, Sebastian Mller |
| 2017 | Interspeech | Perceptual Ratings of Voice Likability Collected Through In-Lab Listening Tests vs. Mobile-Based Crowdsourcing. | Laura Fernndez Gallardo, Rafael Zequeira Jimnez, Sebastian Mller |
| 2017 | QoMEX | Scoring voice likability using pair-comparison: Laboratory vs. crowdsourcing approach. | Rafael Zequeira Jimnez, Laura Fernndez Gallardo, Sebastian Mller |