6 papers
Visual Diagrammatic Queries in ViziQuer: Overview and Implementation
Jūlija Ovčiņņikiva, Agris Šostaks, Kārlis Čerāns
Knowledge graphs (KG) have become an important data organization paradigm. The available textual query languages for information retrieval from KGs, as SPARQL for RDF-structured da…
Matrix Shuffle-Exchange Networks for Hard 2D Tasks
Emīls Ozoliņš, Kārlis Freivalds, Agris Šostaks
Convolutional neural networks have become the main tools for processing two-dimensional data. They work well for images, yet convolutions have a limited receptive field that preven…
Residual Shuffle-Exchange Networks for Fast Processing of Long Sequences
Andis Draguns, Emīls Ozoliņš, Agris Šostaks +2
Attention is a commonly used mechanism in sequence processing, but it is of O(n^2) complexity which prevents its application to long sequences. The recently introduced neural Shuff…
Self-service Ad-hoc Querying Using Controlled Natural Language
Janis Barzdins, Mikus Grasmanis, Edgars Rencis +2
The ad-hoc querying process is slow and error prone due to inability of business experts of accessing data directly without involving IT experts. The problem lies in complexity of…
Saying Hello World with MOLA - A Solution to the TTC 2011 Instructive Case
Elina Kalnina, Audris Kalnins, Agris Sostaks +2
This paper describes the solution of Hello World transformations in MOLA transformation language. Transformations implementing the task are relatively straightforward and easily in…
Solving the TTC 2011 Reengineering Case with MOLA and Higher-Order Transformations
Agris Sostaks, Elina Kalnina, Audris Kalnins +2
The Reengineering Case of the Transformation Tool Contest 2011 deals with automatic extraction of state machine from Java source code. The transformation task involves complex, non…