Tanzima Hashem, Tahrima Hashem, Mohammed Eunus Ali, Lars Kulik
Tanveer Awal, Lars Kulik, Kotagiri Ramamohanrao
Attaining efficient road traffic through optimizing travel time and energy consumption without compromising safety is a key goal in transport telematics. Lane-changes and merging have a vital role in modelling on-ramp and off-ramp bottlenecks. Near on-ramps and off-ramps, they are often major factor...
Tanzima Hashem, Sukarna Barua, Mohammed Eunus Ali, Lars Kulik et al.
A group of friends located at their working places may want to plan a trip to visit a shopping center, have dinner at a restaurant, watch a movie at a theater, and then finally return to their homes with the minimum total trip distance. For a group of spatially dispersed users a group trip planning ...
Mohammed Eunus Ali, Anika Anwar, Ishrat Ahmed, Tanzima Hashem et al.
An increasing number of people are using mobile devices in public places such as buses, trains, airports, coffee shops, and restaurants. Though the flexibility to work remotely using mobile devices make people more productive, this new working practice incurs un-authorized visual access of the mobil...
Tanzima Hashem, Mohammed Eunus Ali, Lars Kulik, Egemen Tanin et al.
User privacy in location-based services (LBSs) has become an important research area. We introduce a new direction to protect user privacy that evaluates LBSs with crowdsourced data and computation and eliminates the role of a location-based service provider. We focus on the group nearest neighbor (...
Nusrat Sultana, Tanzima Hashem, Lars Kulik
In this paper, we introduce obstructed group nearest neighbor (OGNN) queries, that enable a group to meet at a point of interest (e.g., a restaurant) with the minimum aggregate travel distance in an obstructed space. In recent years, researchers have focused on developing algorithms for processing G...
Mohammed Eunus Ali, Egemen Tanin, Peter Scheuermann, Sarana Nutanong et al.
We introduce a new type of query for a location-based social network platform. Consider a scenario in which a group of users is trying to find a common meeting location, yet attempting to include all group members is introducing a significant traveling cost to most of them. In this article, we formu...
Tanzima Hashem, Tahrima Hashem, Mohammed Eunus Ali, Lars Kulik et al.
Tanzima Hashem, Shudip Datta, Tanzir Ul Islam, Mohammed Eunus Ali et al.
An important class of location-based services (LBSs) is information queries that provide users with location information of nearby point of interests such as a restaurant, a hospital or a gas station. To access an LBS, a user has to reveal her location to the location-based service provider (LSP). F...
A. K. M. Mustafizur Rahman Khan, Tanzima Hashem, Egemen Tanin, Lars Kulik
Tanzima Hashem, Lars Kulik, Kotagiri Ramamohanarao, Rui Zhang et al.
Nusrat Sultana, Tanzima Hashem, Lars Kulik
A. K. M. Mustafizur Rahman Khan, Lars Kulik, Egemen Tanin, Hua Hua et al.
Nowadays, people can access location-based services (LBSs) as a group via mobile devices to plan their daily activities with friends and relatives. In this article, we introduce an important class of group-oriented LBSs, group optimal accessible location (GOAL) queries that enable users to identify ...
A. K. M. Mustafizur, Khaleel Ur Rahman Khan, Lars Kulik, Egemen Tanin et al.
We introduce a new type of spatial query, Optimal Accessible Location (OAL) query. When a set of paths is provided the query finds the best location from a set of locations that has the optimal accessibility from these paths. OAL queries have many applications such as the selection of the optimal lo...
Mohammed Eunus Ali, Mahmud Al-Noor Tareq, Shima Rashidi, Tanzima Hashem et al.
With the increasing use of mobile devices in public spaces, users are becoming increasingly vulnerable to visual privacy attacks, commonly known as shoulder surfing. These attacks enable bystanders to visually extract sensitive information from screens without authorization. In this work, we introdu...