Philipp Christmann

26 papers A* 4A 3Misc 1Journal 13Unranked 5
YearRankTypeTitle / Venue / Authors
2025 — conf
Recursive Question Understanding for Complex Question Answering over Heterogeneous Personal Data.
ACL (Findings)
Philipp Christmann, Gerhard Weikum
2025 J jnl
Recursive Question Understanding for Complex Question Answering over Heterogeneous Personal Data.
CoRR
Philipp Christmann, Gerhard Weikum
2025 J jnl
Report on the 9th Workshop on Search-Oriented Conversational Artificial Intelligence (SCAI 2025) at IJCAI 2025.
SIGIR Forum
Svitlana Vakulenko, Philipp Christmann, Isabel Feustel, Vaibhav Adlakha, Vahid Sadiri Javadi, Patrícia Schmidtová
2025 A conf
The ReQAP System for Question Answering over Personal Information.
CIKM
Philipp Christmann, Gerhard Weikum
2025 J jnl
The ReQAP System for Question Answering over Personal Information.
CoRR
Philipp Christmann, Gerhard Weikum
2025 J jnl
Traceable Drug Recommendation over Medical Knowledge Graphs.
CoRR
Yu Lin, Zhen Jia, Philipp Christmann, Xu Zhang, Shengdong Du, Tianrui Li
2024 — conf
CompMix: A Benchmark for Heterogeneous Question Answering.
WWW (Companion Volume)
Philipp Christmann, Rishiraj Saha Roy, Gerhard Weikum
2024 A* conf
Faithful Temporal Question Answering over Heterogeneous Sources.
WWW
Zhen Jia, Philipp Christmann, Gerhard Weikum
2024 J jnl
Faithful Temporal Question Answering over Heterogeneous Sources.
CoRR
Zhen Jia, Philipp Christmann, Gerhard Weikum
2024 J jnl
RAG-based Question Answering over Heterogeneous Data and Text.
CoRR
Philipp Christmann, Gerhard Weikum
2024 J jnl
RAG-based Question Answering over Heterogeneous Data and Text.
IEEE Data Eng. Bull.
Philipp Christmann, Gerhard Weikum
2024 — conf
Retrieving Contextual Information for Long-Form Question Answering using Weak Supervision.
EMNLP (Findings)
Philipp Christmann, Svitlana Vakulenko, Ionut Sorodoc, Bill Byrne, Adrià de Gispert
2024 J jnl
Retrieving Contextual Information for Long-Form Question Answering using Weak Supervision.
CoRR
Philipp Christmann, Svitlana Vakulenko, Ionut-Teodor Sorodoc, Bill Byrne, Adrià de Gispert
2024 — conf
TIQ: A Benchmark for Temporal Question Answering with Implicit Time Constraints.
WWW (Companion Volume)
Zhen Jia, Philipp Christmann, Gerhard Weikum
2023 Misc conf
CLOCQ: A Toolkit for Fast and Easy Access to Knowledge Bases.
BTW
Philipp Christmann, Rishiraj Saha Roy, Gerhard Weikum
2023 J jnl
CompMix: A Benchmark for Heterogeneous Question Answering.
CoRR
Philipp Christmann, Rishiraj Saha Roy, Gerhard Weikum
2023 A* conf
Explainable Conversational Question Answering over Heterogeneous Sources via Iterative Graph Neural Networks.
SIGIR
Philipp Christmann, Rishiraj Saha Roy, Gerhard Weikum
2023 J jnl
Explainable Conversational Question Answering over Heterogeneous Sources via Iterative Graph Neural Networks.
CoRR
Philipp Christmann, Rishiraj Saha Roy, Gerhard Weikum
2022 A conf
Beyond NED: Fast and Effective Search Space Reduction for Complex Question Answering over Knowledge Bases.
WSDM
Philipp Christmann, Rishiraj Saha Roy, Gerhard Weikum
2022 A* conf
Conversational Question Answering on Heterogeneous Sources.
SIGIR
Philipp Christmann, Rishiraj Saha Roy, Gerhard Weikum
2022 J jnl
Conversational Question Answering on Heterogeneous Sources.
CoRR
Philipp Christmann, Rishiraj Saha Roy, Gerhard Weikum
2022 A* conf
Explainable Conversational Question Answering over Heterogeneous Sources.
SIGIR
Philipp Christmann
2022 — conf
Question Entity and Relation Linking to Knowledge Bases via CLOCQ (full paper).
SemREC/SMART@ISWC
Philipp Christmann, Rishiraj Saha Roy, Gerhard Weikum
2021 J jnl
Efficient Contextualization using Top-k Operators for Question Answering over Knowledge Graphs.
CoRR
Philipp Christmann, Rishiraj Saha Roy, Gerhard Weikum
2019 A conf
Look before you Hop: Conversational Question Answering over Knowledge Graphs Using Judicious Context Expansion.
CIKM
Philipp Christmann, Rishiraj Saha Roy, Abdalghani Abujabal, Jyotsna Singh, Gerhard Weikum
2019 J jnl
Look before you Hop: Conversational Question Answering over Knowledge Graphs Using Judicious Context Expansion.
CoRR
Philipp Christmann, Rishiraj Saha Roy, Abdalghani Abujabal, Jyotsna Singh, Gerhard Weikum