Search Results for author: Kwan Hui Lim

Found 24 papers, 6 papers with code

Leveraging Contrastive Learning for Few-shot Geolocation of Social Posts

no code implementations19 Feb 2024 Menglin Li, Kwan Hui Lim

Specifically, a Tweet-Location Contrastive learning objective is introduced to align representations of tweets and locations within tweet-location pairs.

Contrastive Learning

Utilizing Language Models for Tour Itinerary Recommendation

no code implementations21 Nov 2023 Ngai Lam Ho, Kwan Hui Lim

As a RS problem, it is heavily related to problem or filtering or ranking a subset of POIs that are relevant to a user and recommending it as part of an itinerary.

Recommendation Systems

SBTRec- A Transformer Framework for Personalized Tour Recommendation Problem with Sentiment Analysis

no code implementations18 Nov 2023 Ngai Lam Ho, Roy Ka-Wei Lee, Kwan Hui Lim

In this paper, we propose the SBTRec algorithm: a BERT-based Trajectory Recommendation with sentiment analysis, for recommending personalized sequences of POIs as itineraries.

Recommendation Systems Sentiment Analysis

BTRec: BERT-Based Trajectory Recommendation for Personalized Tours

1 code implementation30 Oct 2023 Ngai Lam Ho, Roy Ka-Wei Lee, Kwan Hui Lim

An essential task for tourists having a pleasant holiday is to have a well-planned itinerary with relevant recommendations, especially when visiting unfamiliar cities.

Language Modelling Sentence +1

Optimizing Group Utility in Itinerary Planning: A Strategic and Crowd-Aware Approach

no code implementations4 Apr 2023 Junhua Liu, Kwan Hui Lim, Kristin L. Wood, Menglin Li

Itinerary recommendation is a complex sequence prediction problem with numerous real-world applications.

SkillRec: A Data-Driven Approach to Job Skill Recommendation for Career Insights

no code implementations20 Feb 2023 Xiang Qian Ong, Kwan Hui Lim

Understanding the skill sets and knowledge required for any career is of utmost importance, but it is increasingly challenging in today's dynamic world with rapid changes in terms of the tools and techniques used.

Sentence Sentence Embedding +1

POIBERT: A Transformer-based Model for the Tour Recommendation Problem

no code implementations16 Dec 2022 Ngai Lam Ho, Kwan Hui Lim

Our recommendation algorithm is able to generate a sequence of POIs that optimizes time and users' preference in POI categories based on past trajectories from similar tourists.

Language Modelling Sentence +1

A Transformer-based Framework for POI-level Social Post Geolocation

no code implementations26 Oct 2022 Menglin Li, Kwan Hui Lim, Teng Guo, Junhua Liu

POI-level geo-information of social posts is critical to many location-based applications and services.

Revision for Concision: A Constrained Paraphrase Generation Task

no code implementations25 Oct 2022 Wenchuan Mu, Kwan Hui Lim

Academic writing should be concise as concise sentences better keep the readers' attention and convey meaning clearly.

Paraphrase Generation Sentence

Real-time Spatio-temporal Event Detection on Geotagged Social Media

no code implementations23 Jun 2021 Yasmeen George, Shanika Karunasekera, Aaron Harwood, Kwan Hui Lim

First, to address the challenge related to the unknown spatial resolution of events, a quad-tree method is exploited in order to split the geographical space into multiscale regions based on the density of social media data.

Event Detection

User Identification across Social Networking Sites using User Profiles and Posting Patterns

no code implementations22 Jun 2021 Prashant Solanki, Kwan Hui Lim, Aaron Harwood

With the prevalence of online social networking sites (OSNs) and mobile devices, people are increasingly reliant on a variety of OSNs for keeping in touch with family and friends, and using it as a source of information.

Photozilla: A Large-Scale Photography Dataset and Visual Embedding for 20 Photography Styles

1 code implementation21 Jun 2021 Trisha Singhal, Junhua Liu, Lucienne T. M. Blessing, Kwan Hui Lim

The dataset is then used to train 3 classification models to automatically classify the images into the relevant style which resulted in an accuracy of ~96%.

User Preferential Tour Recommendation Based on POI-Embedding Methods

no code implementations3 Mar 2021 Ngai Lam Ho, Kwan Hui Lim

Tour itinerary planning and recommendation are challenging tasks for tourists in unfamiliar countries.

TweetCOVID: A System for Analyzing Public Sentiments and Discussions about COVID-19 via Twitter Activities

no code implementations2 Mar 2021 Jolin Shaynn-Ly Kwan, Kwan Hui Lim

The COVID-19 pandemic has created widespread health and economical impacts, affecting millions around the world.

Urban Crowdsensing using Social Media: An Empirical Study on Transformer and Recurrent Neural Networks

no code implementations5 Dec 2020 Jerome Heng, Junhua Liu, Kwan Hui Lim

An important aspect of urban planning is understanding crowd levels at various locations, which typically require the use of physical sensors.

Event Detection

An Unsupervised Sentence Embedding Method by Mutual Information Maximization

1 code implementation EMNLP 2020 Yan Zhang, Ruidan He, Zuozhu Liu, Kwan Hui Lim, Lidong Bing

However, SBERT is trained on corpus with high-quality labeled sentence pairs, which limits its application to tasks where labeled data is extremely scarce.

Clustering Self-Supervised Learning +5

EPIC30M: An Epidemics Corpus Of Over 30 Million Relevant Tweets

1 code implementation9 Jun 2020 Junhua Liu, Trisha Singhal, Lucienne T. M. Blessing, Kristin L. Wood, Kwan Hui Lim

In this paper, we present EPIC30M, a large-scale epidemic corpus that contains 30 millions micro-blog posts, i. e., tweets crawled from Twitter, from year 2006 to 2020.

Natural Language Understanding

CrisisBERT: a Robust Transformer for Crisis Classification and Contextual Crisis Embedding

no code implementations11 May 2020 Junhua Liu, Trisha Singhal, Lucienne T. M. Blessing, Kristin L. Wood, Kwan Hui Lim

However, none of the works perform crisis embedding and classification using state of the art attention-based deep neural networks models, such as Transformers and document-level contextual embeddings.

Classification General Classification

A Large-scale Industrial and Professional Occupation Dataset

1 code implementation25 Apr 2020 Junhua Liu, Yung Chuen Ng, Kwan Hui Lim

There has been growing interest in utilizing occupational data mining and analysis.

Strategic and Crowd-Aware Itinerary Recommendation

no code implementations12 Sep 2019 Junhua Liu, Kristin L. Wood, Kwan Hui Lim

There is a rapidly growing demand for itinerary planning in tourism but this task remains complex and difficult, especially when considering the need to optimize for queuing time and crowd levels for multiple users.

Geolocation Prediction in Twitter Using Location Indicative Words and Textual Features

no code implementations WS 2016 Lianhua Chi, Kwan Hui Lim, Nebula Alam, Christopher J. Butler

Knowing the location of a social media user and their posts is important for various purposes, such as the recommendation of location-based items/services, and locality detection of crisis/disasters.

General Classification

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