Searched for: author:"Hauff, C."
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Penha, G. (author), Hauff, C. (author)
The area of conversational search has gained significant traction in the IR research community, motivated by the widespread use of personal assistants. An often researched task in this setting is conversation response ranking, that is, to retrieve the best response for a given ongoing conversation from a corpus of historic conversations....
conference paper 2020
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Clancy, Ryan (author), Ferro, Nicola (author), Hauff, C. (author), Lin, Jimmy (author), Sakai, Tetsuya (author), Wu, Ze Zhong (author)
conference paper 2019
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Moraes Gomes, F. (author), Hauff, C. (author)
We introduce node-indri, a Node.js module that acts as a wrapper around the Indri toolkit, and thus makes an established IR toolkit accessible to the modern web stack. node-indri exposes many of Indri’s functionalities and provides direct access to document content and retrieval scores for web development (in contrast to, for instance, the...
conference paper 2019
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Rennings, Daniël (author), Moraes Gomes, F. (author), Hauff, C. (author)
Traditional retrieval models such as BM25 or language models have been engineered based on search heuristics that later have been formalized into axioms. The axiomatic approach to information retrieval (IR) has shown that the effectiveness of a retrieval method is connected to its fulfillment of axioms. This approach enabled researchers to...
conference paper 2019
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Bountouridis, D. (author), Harambam, Jaron (author), Makhortykh, Mykola (author), Marrero Llinares, M. (author), Tintarev, N. (author), Hauff, C. (author)
The growing volume of digital data stimulates the adoption of recommender systems in different socioeconomic domains, including news industries. While news recommenders help consumers deal with information overload and increase their engagement, their use also raises an increasing number of societal concerns, such as “Matthew effects”, “filter...
conference paper 2019
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Clancy, Ryan (author), Ferro, Nicola (author), Hauff, C. (author), Lin, Jimmy (author), Sakai, Tetsuya (author), Wu, Ze Zhong (author)
The Open-Source IR Replicability Challenge (OSIRRC 2019), organized as a workshop at SIGIR 2019, aims to improve the replicability of ad hoc retrieval experiments in information retrieval by gathering a community of researchers to jointly develop a common Docker specification and build Docker images that encapsulate a diversity of systems and...
conference paper 2019
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Hauff, C. (author)
The Lemur Project was set up in 2000 by the Center for Intelligent Information Retrieval at UMass Amherst. It is one of the longest lasting open-source projects in the information retrieval (IR) research community. Among the released tools is Indri, a popular search engine that was designed for language-modeling based approaches to IR. For...
conference paper 2019
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Zhao, Y. (author), Robal, T. (author), Lofi, C. (author), Hauff, C. (author)
The use of mobile technology has become a part of our daily<br/>lives and enabled us to perform tasks that once were possible only on<br/>stationary computers on-the-go anywhere and at any time. This shift<br/>has also affected the way we learn. The use of mobile devices on-the-go<br/>requires users to multitask and divide attention between...
conference paper 2018
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Chen, G. (author), Yang, J. (author), Hauff, C. (author), Houben, G.J.P.M. (author)
We present LearningQ, a challenging educational question generation dataset containing over 230K document-question pairs. It includes 7K instructor-designed questions assessing knowledge concepts being taught and 223K learner-generated questions seeking in-depth understanding of the taught concepts. We show that, compared to existing datasets...
conference paper 2018
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Robal, T. (author), Zhao, Y. (author), Lofi, C. (author), Hauff, C. (author)
Massive Open Online Courses (MOOCs) have become an attractive opportunity for people around the world to gain knowledge and skills. Despite the initial enthusiasm of the first wave of MOOCs and the subsequent research efforts, MOOCs today suffer from retention issues: many MOOC learners start but do not finish. A main culprit is the lack of...
conference paper 2018
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Davis, D.J. (author), Seaton, Daniel (author), Hauff, C. (author), Houben, G.J.P.M. (author)
This paper applies theory and methodology from the learning design literature to large-scale learning environments through quantitative modeling of the structure and design of Massive Open Online Courses. For two institutions of higher education, we automate the task of encoding pedagogy and learning design principles for 177 courses (which...
conference paper 2018
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Davis, D.J. (author), Chen, G. (author), Hauff, C. (author), Houben, G.J.P.M. (author)
Taking advantage of the vast history of theoretical and empirical findings in the learning literature we have inherited, this research offers a synthesis of prior findings in the domain of empirically evaluated active learning strategies in digital learning environments. The primary concern of the present study is to evaluate these findings with...
journal article 2018
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Davis, D.J. (author), Triglianos, V. (author), Hauff, C. (author), Houben, G.J.P.M. (author)
Past research in large-scale learning environments has found one of the most inhibiting factors to learners’ success to be their inability to effectively self-regulate their learning efforts. In traditional small-scale learning environments, personalized feedback (on progress, content, behavior, etc.) has been found to be an effective solution...
conference paper 2018
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Rikarno Putra, Sindunuraga (author), Grashoff, Kilian (author), Moraes Gomes, F. (author), Hauff, C. (author)
Collaborative search is an active area of research in the IR community (and has been for many years)—despite this, there is a lack of open-source tools available to jump-start research in collaborative search. It is common for collaborative search researchers to implement their own tooling, leading to unnecessary duplicate engineering efforts....
conference paper 2018
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Chen, G. (author), Hauff, C. (author), Houben, G.J.P.M. (author)
Knowledge tracing serves as a keystone in delivering personalized education. However, few works attempted to model students’ knowledge state in the setting of Second Language Acquisition. The Duolingo Shared Task on Second Language Acquisition Modeling (Settles et al., 2018) provides students’ trace data that we extensively analyze and engineer...
conference paper 2018
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Davis, D.J. (author), Kizilcec, René F. (author), Hauff, C. (author), Houben, G.J.P.M. (author)
Large-scale online learning environments such as MOOCs provide an opportunity to evaluate the efficacy of learning strategies in an informal learning context with a diverse learner population. Here, we evaluate the extent to which retrieval practice — recognized as one of the most effective learning strategies — facilitates long-term knowledge...
journal article 2018
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Davis, D.J. (author), Kizilcec, René F. (author), Hauff, C. (author), Houben, G.J.P.M. (author)
Retrieval practice has been established in the learning sciences as one of the most effective strategies to facilitate robust learning in traditional classroom contexts. The cognitive theory underpinning the "testing effect" states that actively recalling information is more effective than passively revisiting materials for storing information...
conference paper 2018
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Davis, D.J. (author), Hauff, C. (author), Houben, G.J.P.M. (author)
Crowdsourcing has emerged as an effective method of scaling-up tasks previously reserved for a small set of experts. Accordingly, researchers in the large-scale online learning space have begun to employ crowdworkers to conduct research about large-scale, open online learning. We here report results from a crowdsourcing study (N=135) to evaluate...
journal article 2018
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Chen, G. (author), Davis, D.J. (author), Krause, Markus (author), Aivaloglou, E. (author), Hauff, C. (author), Houben, G.J.P.M. (author)
Massive Open Online Courses (MOOCs) aim to educate the world. More often than not, however, MOOCs fall short of this goal — a majority of learners are already highly educated (with a Bachelor degree or more) and come from specific parts of the (developed) world. Learners from developing countries without a higher degree are underrepresented,...
journal article 2018
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Bao, Yingying (author), Chen, G. (author), Hauff, C. (author)
Massive Open Online Courses (MOOCs) are a promising form of online education. However, the occurrence of academic dishonesty has been threatening MOOC certificates’ effectiveness as a serious tool for recruiters and employers. Recently, a large-scale study on the log traces from more than one hundred MOOCs created by Harvard and MIT has...
conference paper 2017
Searched for: author:"Hauff, C."
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