Search Results for author: Simon Razniewski

Found 46 papers, 16 papers with code

Advanced Semantics for Commonsense Knowledge Extraction

1 code implementation2 Nov 2020 Tuan-Phong Nguyen, Simon Razniewski, Gerhard Weikum

Prior works like ConceptNet, TupleKB and others compiled large CSK collections, but are restricted in their expressiveness to subject-predicate-object (SPO) triples with simple concepts for S and monolithic strings for P and O.

Commonsense Knowledge Base Construction

Commonsense Properties from Query Logs and Question Answering Forums

2 code implementations27 May 2019 Julien Romero, Simon Razniewski, Koninika Pal, Jeff Z. Pan, Archit Sakhadeo, Gerhard Weikum

Commonsense knowledge about object properties, human behavior and general concepts is crucial for robust AI applications.

Question Answering

Extracting Cultural Commonsense Knowledge at Scale

2 code implementations14 Oct 2022 Tuan-Phong Nguyen, Simon Razniewski, Aparna Varde, Gerhard Weikum

Commonsense knowledge, which is crucial for robust human-centric AI, is covered by a small number of structured knowledge projects.

Language Modelling

Refined Commonsense Knowledge from Large-Scale Web Contents

1 code implementation30 Nov 2021 Tuan-Phong Nguyen, Simon Razniewski, Julien Romero, Gerhard Weikum

However, they are restricted in their expressiveness to subject-predicate-object (SPO) triples with simple concepts for S and strings for P and O.

Open Information Extraction

Joint Reasoning for Multi-Faceted Commonsense Knowledge

1 code implementation AKBC 2020 Yohan Chalier, Simon Razniewski, Gerhard Weikum

Each concept is treated in isolation from other concepts, and the only quantitative measure (or ranking) of properties is a confidence score that the statement is valid.

valid

Evaluating Language Models for Knowledge Base Completion

1 code implementation20 Mar 2023 Blerta Veseli, Sneha Singhania, Simon Razniewski, Gerhard Weikum

In a second step, we perform a human evaluation on predictions that are not yet in the KB, as only this provides real insights into the added value over existing KBs.

Knowledge Base Completion

Enriching Knowledge Bases with Counting Quantifiers

1 code implementation10 Jul 2018 Paramita Mirza, Simon Razniewski, Fariz Darari, Gerhard Weikum

In a large-scale experiment, we demonstrate the potential for knowledge base enrichment by applying CINEX to 2, 474 frequent relations in Wikidata.

Answering Count Queries with Explanatory Evidence

1 code implementation11 Apr 2022 Shrestha Ghosh, Simon Razniewski, Gerhard Weikum

A challenging case in web search and question answering are count queries, such as \textit{"number of songs by John Lennon"}.

Question Answering

Answering Count Questions with Structured Answers from Text

1 code implementation15 Sep 2022 Shrestha Ghosh, Simon Razniewski, Gerhard Weikum

In this work we address the challenging case of answering count queries in web search, such as ``number of songs by John Lennon''.

Knowledge Base Completion for Long-Tail Entities

1 code implementation30 Jun 2023 Lihu Chen, Simon Razniewski, Gerhard Weikum

To evaluate our method and various baselines, we introduce a novel dataset, called MALT, rooted in Wikidata.

Knowledge Base Completion Retrieval

Mapping and Cleaning Open Commonsense Knowledge Bases with Generative Translation

1 code implementation22 Jun 2023 Julien Romero, Simon Razniewski

Structured knowledge bases (KBs) are the backbone of many know\-ledge-intensive applications, and their automated construction has received considerable attention.

Language Modelling Open Information Extraction +1

Doctoral Advisor or Medical Condition: Towards Entity-specific Rankings of Knowledge Base Properties [Extended Version]

no code implementations20 Sep 2017 Simon Razniewski, Vevake Balaraman, Werner Nutt

In this work, we have developed a human-annotated dataset of 350 preference judgments among pairs of knowledge base properties for fixed entities.

Semantic Similarity Semantic Textual Similarity +1

Cardinal Virtues: Extracting Relation Cardinalities from Text

no code implementations ACL 2017 Paramita Mirza, Simon Razniewski, Fariz Darari, Gerhard Weikum

Information extraction (IE) from text has largely focused on relations between individual entities, such as who has won which award.

Relation

TiFi: Taxonomy Induction for Fictional Domains [Extended version]

no code implementations29 Jan 2019 Cuong Xuan Chu, Simon Razniewski, Gerhard Weikum

Taxonomies are important building blocks of structured knowledge bases, and their construction from text sources and Wikipedia has received much attention.

Story-oriented Image Selection and Placement

no code implementations2 Sep 2019 Sreyasi Nag Chowdhury, Simon Razniewski, Gerhard Weikum

Multimodal contents have become commonplace on the Internet today, manifested as news articles, social media posts, and personal or business blog posts.

Combinatorial Optimization Object Recognition

Coverage of Information Extraction from Sentences and Paragraphs

no code implementations IJCNLP 2019 Simon Razniewski, Nitisha Jain, Paramita Mirza, Gerhard Weikum

Scalar implicatures are language features that imply the negation of stronger statements, e. g., {``}She was married twice{''} typically implicates that she was not married thrice.

Implicatures Negation

Negative Statements Considered Useful

no code implementations13 Jan 2020 Hiba Arnaout, Simon Razniewski, Gerhard Weikum, Jeff Z. Pan

Negative statements are useful to overcome limitations of question answering systems that are mainly geared for positive questions; they can also contribute to informative summaries of entities.

Question Answering

Uncovering Hidden Semantics of Set Information in Knowledge Bases

1 code implementation6 Mar 2020 Shrestha Ghosh, Simon Razniewski, Gerhard Weikum

This paper focuses on set-valued predicates, i. e., the relationship between an entity and a set of entities.

Position Question Answering

CounQER: A System for Discovering and Linking Count Information in Knowledge Bases

1 code implementation7 May 2020 Shrestha Ghosh, Simon Razniewski, Gerhard Weikum

Predicate constraints of general-purpose knowledge bases (KBs) like Wikidata, DBpedia and Freebase are often limited to subproperty, domain and range constraints.

Question Answering

Counting Query Answers over a DL-Lite Knowledge Base (extended version)

no code implementations12 May 2020 Diego Calvanese, Julien Corman, Davide Lanti, Simon Razniewski

Counting answers to a query is an operation supported by virtually all database management systems.

Management

Machine Knowledge: Creation and Curation of Comprehensive Knowledge Bases

no code implementations24 Sep 2020 Gerhard Weikum, Luna Dong, Simon Razniewski, Fabian Suchanek

Equipping machines with comprehensive knowledge of the world's entities and their relationships has been a long-standing goal of AI.

Knowledge Graphs Question Answering

Information to Wisdom: Commonsense Knowledge Extraction and Compilation

no code implementations4 Mar 2021 Simon Razniewski, Niket Tandon, Aparna S. Varde

Commonsense knowledge is a foundational cornerstone of artificial intelligence applications.

SANDI: Story-and-Images Alignment

no code implementations EACL 2021 Sreyasi Nag Chowdhury, Simon Razniewski, Gerhard Weikum

The Internet contains a multitude of social media posts and other of stories where text is interspersed with images.

Language Models As or For Knowledge Bases

no code implementations10 Oct 2021 Simon Razniewski, Andrew Yates, Nora Kassner, Gerhard Weikum

Pre-trained language models (LMs) have recently gained attention for their potential as an alternative to (or proxy for) explicit knowledge bases (KBs).

Position

Enriching Knowledge Bases with Interesting Negative Statements

no code implementations AKBC 2020 Hiba Arnaout, Simon Razniewski, Gerhard Weikum

Negative statements would be important to overcome current limitations of question answering, yet due to their potential abundance, any effort towards compiling them needs a tight coupling with ranking.

Question Answering

KnowFi: Knowledge Extraction from Long Fictional Texts

no code implementations AKBC 2021 Cuong Xuan Chu, Simon Razniewski, Gerhard Weikum

Knowledge base construction has recently been extended to fictional domains like multi-volume novels and TV/movie series, aiming to support explorative queries for fans and sub-culture studies by humanities researchers.

Cultural Vocal Bursts Intensity Prediction Relation Extraction

Predicting Document Coverage for Relation Extraction

no code implementations26 Nov 2021 Sneha Singhania, Simon Razniewski, Gerhard Weikum

We employ methods combining features with statistical models like TF-IDF and language models like BERT.

Information Retrieval Relation +2

Materialized Knowledge Bases from Commonsense Transformers

no code implementations CSRR (ACL) 2022 Tuan-Phong Nguyen, Simon Razniewski

Starting from the COMET methodology by Bosselut et al. (2019), generating commonsense knowledge directly from pre-trained language models has recently received significant attention.

UnCommonSense: Informative Negative Knowledge about Everyday Concepts

no code implementations19 Aug 2022 Hiba Arnaout, Simon Razniewski, Gerhard Weikum, Jeff Z. Pan

This way, positive statements about comparable concepts that are absent for the target concept become seeds for negative statement candidates.

Informativeness Question Answering

Do Children Texts Hold The Key To Commonsense Knowledge?

no code implementations10 Oct 2022 Julien Romero, Simon Razniewski

Compiling comprehensive repositories of commonsense knowledge is a long-standing problem in AI.

Language Modelling

How Stable is Knowledge Base Knowledge?

no code implementations2 Nov 2022 Suhas Shrinivasan, Simon Razniewski

The inevitability of change in the real-world, brings us to a central property of KBs -- they are highly dynamic in that the information they contain are constantly subject to change.

Question Answering

Class Cardinality Comparison as a Fermi Problem

1 code implementation8 Mar 2023 Shrestha Ghosh, Simon Razniewski, Gerhard Weikum

Questions on class cardinality comparisons are quite tricky to answer and come with its own challenges.

Can large language models generate salient negative statements?

no code implementations26 May 2023 Hiba Arnaout, Simon Razniewski

We examine the ability of large language models (LLMs) to generate salient (interesting) negative statements about real-world entities; an emerging research topic of the last few years.

Negation

Extracting Multi-valued Relations from Language Models

1 code implementation6 Jul 2023 Sneha Singhania, Simon Razniewski, Gerhard Weikum

The widespread usage of latent language representations via pre-trained language models (LMs) suggests that they are a promising source of structured knowledge.

Relation slot-filling +1

Evaluating the Knowledge Base Completion Potential of GPT

no code implementations23 Oct 2023 Blerta Veseli, Simon Razniewski, Jan-Christoph Kalo, Gerhard Weikum

Structured knowledge bases (KBs) are an asset for search engines and other applications, but are inevitably incomplete.

Knowledge Base Completion

BoschAI @ PLABA 2023: Leveraging Edit Operations in End-to-End Neural Sentence Simplification

no code implementations3 Nov 2023 Valentin Knappich, Simon Razniewski, Annemarie Friedrich

We furthermore show that the hyperparameter $\lambda$ in token-level loss weights can be used to control the edit distance and the simplicity level (FKGL).

Sentence

Multi-Cultural Commonsense Knowledge Distillation

no code implementations16 Feb 2024 Tuan-Phong Nguyen, Simon Razniewski, Gerhard Weikum

Despite recent progress, large language models (LLMs) still face the challenge of appropriately reacting to the intricacies of social and cultural conventions.

Knowledge Distillation Specificity

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