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sodupath.com Research Hub
🔬 Empirical Linguistics & AI Engineering

South Asian Computational Linguistics & Academic Research Hub

Peer-reviewed computational models, Sinhala morphosyntactic parsers, and the comprehensive 10-chapter Conducting Research and Thesis Preparation Master Guide for graduate scholars and researchers.

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Deterministic Morphology

Formal finite-state automaton modeling of literary Sinhala inflections, ensuring zero hallucination in grammatical agreement verification.

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Orthographic Accuracy

Computational disambiguation of retroflex and dental nasals/liquids (ණ/න and ළ/ල) backed by 75,000+ lemma etymological lexicons.

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Sandhi & Segmentation

Automated decomposition of agglutinative clitics, indivisible particles, and compound word boundary restoration.

Research Publications & Monographs

Explore foundational studies on South Asian NLP and the 10-Chapter Thesis Preparation Guide.

15 Publications
Morphology & Syntax
October 2026 • 14 min read

Morphological Parsing and Subject-Verb Agreement (SVA) in Modern Written Sinhala: Rule-Based Determinism in Diglossic Contexts

Written Sinhala exhibits extreme diglossia when contrasted with colloquial speech. While spoken Sinhala has largely eliminated person, number, and gender inflection on finite verbs, formal literary Sinhala mandates strict grammatical agreement between nominative subjects and verbal predicates. This paper examines the algorithmic resolution of literary Subject-Verb Agreement (SVA) in the Sodupath NLP engine, outlining the rule-based finite-state methodology used to parse animacy, gender inflection, honorific markers, and tense concordance without over-relying on opaque neural approximations in low-resource environments.

By Sodupath Computational Linguistics Research Group Read Research Paper ➔
Orthography & Corpora
October 2026 • 11 min read

Orthographic Disambiguation in Digital Sinhala Corpora: Computational Resolution of Retroflex and Dental Consonants (Na/La Orthography)

In spoken contemporary Sinhala, the historical phonological distinction between dental nasals/liquids [n, l] and retroflex nasals/liquids [ɳ, ɭ] has completely merged. Native speakers articulate 'න' and 'ණ' as [n], and 'ල' and 'ළ' as [l]. Nevertheless, written Sinhala fiercely preserves the classical etymological distribution codified in treatises such as the Sidath Sangarawa. Consequently, orthographic errors involving ණ/න and ළ/ල constitute over 68% of all spelling infractions in digital Sinhala corpora. This paper details the computational disambiguation methods deployed in Sodupath to enforce etymological precision.

By Sodupath Computational Linguistics Research Group Read Research Paper ➔
Segmentation & Tokenization
October 2026 • 12 min read

Tokenization and Sandhi Decomposition for Low-Resource Indo-Aryan Languages: A Finite-State Hybrid Approach

Standard tokenizers trained on Western European languages assume that whitespace strictly delineates word boundaries. In South Asian languages, especially Sinhala and Sanskrit, morphophonemic euphonic combinations (Sandhi) merge adjacent word boundaries, whilst colloquial writing often erroneously breaks indivisible compound morphemes or conjoins independent words with clitic particles. This paper presents the hybrid tokenization and Sandhi decomposition engine utilized in Sodupath to guarantee syntactically sound segmentation.

By Sodupath Computational Linguistics Research Group Read Research Paper ➔
Morphology & Syntax
October 2026 • 10 min read

Resolving False Plurals in Low-Resource Morphological Analysis: The Case of Sinhala Hal-Na ('න්') Participles and Inanimate Nouns

In Sinhala morphology, the terminal virama nasal marker Hal-Na ('න්' or suffix '-ුන්') functions polysemously across radically distinct grammatical roles: as an animate plural inflection (ගුරුවරුන්, මිනිසුන්), as an adjectival relative participle (දුන්, හුන්, රැඳුන්), as a root adjective (නොසන්සුන්, සන්සුන්), and as an inanimate singular mass noun (අසුන්, රන්, දන්, පින්). Naive morphological parsers invariably misclassify these tokens as plural subjects, inducing cascading Subject-Verb Agreement errors. This paper explains how Sodupath isolates nominative agent precedence to solve this anomaly.

By Sodupath Computational Linguistics Research Group Read Research Paper ➔
South Asian NLP
October 2026 • 16 min read

Comparative Computational Linguistics in South Asia: Script Encodings, Unicode Ambiguities, and Morphosyntax across Sinhala, Tamil, and Hindi

South Asia encompasses over 1.8 billion speakers across Indo-Aryan and Dravidian language families. Despite their genetic divergence, centuries of areal contact have yielded profound structural convergence across phonology, morphology, and syntax. Simultaneously, South Asian digital scripts encounter severe hurdles with Unicode complex text rendering, Zero-Width Joiner (ZWJ) anomalies, and resource scarcity in modern large language models. This comparative treatise explores the shared challenges and computational methodologies binding Sinhala, Tamil, and Hindi digital processing.

By Sodupath Computational Linguistics Research Group Read Research Paper ➔
Thesis & Research Guide
Academic Series 2026 • 9 min read

Chapter 1: Introduction to Research and Preparation of the Project or Thesis

An orientation guide for senior undergraduate and graduate researchers. Outlines foundational definitions differentiating a thesis, project, and empirical research undertaking, established acceptance criteria, submission checklists, library borrowing privileges, and mechanical arrangement standards.

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Thesis & Research Guide
Academic Series 2026 • 11 min read

Chapter 2: Acceptable Types of Theses and Projects: Quantitative, Qualitative, and Practitioner Methods

Explores the epistemological foundations and operational methodologies permissible in graduate scholarship. Differentiates quantitative designs (experimental, causal-comparative, correlational, survey) from qualitative paradigms (field observation, ethnography, structured interviews), and provides guidelines on formulating researchable questions.

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Thesis & Research Guide
Academic Series 2026 • 8 min read

Chapter 3: Selecting the Project Committee, Topic Formulation, and Preliminary Proposal

Practical guidance on establishing a collaborative faculty advisory team. Details the distinct responsibilities of the Committee Chairperson and Readers, the appropriate utilization of statistical consultants and editorial support, and the construction of an effective preliminary proposal.

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Thesis & Research Guide
Academic Series 2026 • 12 min read

Chapter 4: Approaching Your Research Topic: Formulating Intellectual Arguments and Proposal Structure

Focuses on transforming an initial research inquiry into a compelling formal proposal. Covers the construction of persuasive intellectual arguments, the preparation of an annotated bibliography, standard proposal sections, and essential ethics protocols regarding human subjects protection.

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Thesis & Research Guide
Academic Series 2026 • 8 min read

Chapter 5: The First Chapter of the Project or Thesis: Problem Statement, Purpose, and Rationale

A granular walkthrough of the introductory chapter of a formal thesis. Delineates the formulation of the problem statement, prediction-based research objectives, multi-perspective theoretical rationales, operational definitions of key terms, and explicit delimitations versus uncontrollable limitations.

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Thesis & Research Guide
Academic Series 2026 • 9 min read

Chapter 6: The Second Chapter of the Project: Literature Review, Critical Discrimination, and APA Citations

Addresses the construction of an exhaustive, conceptually organized review of the literature. Explains the transition from 'shotgun summaries' to cohesive thematic funnels, the application of long-shot, medium-shot, and close-up critique techniques, and the rigorous requirements of APA bibliographic citations.

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Thesis & Research Guide
Academic Series 2026 • 10 min read

Chapter 7: The Third Chapter of the Project: Methodology, Instrumentation, and Replication Protocols

Step-by-step instructions for preparing the methodology chapter to guarantee absolute scientific replicability. Outlines the statement of testable null hypotheses, rigorous demographic reporting, instrument reliability and validity verification, and procedural transparency.

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Thesis & Research Guide
Academic Series 2026 • 7 min read

Chapter 8: The Fourth Chapter of the Project: Data Analysis, Inferential Statistics, and Empirical Results

Explains the reporting of empirical findings devoid of subjective conjecture. Contrasts the hypothesis-analysis style against the analysis-by-instruments style, details descriptive and inferential statistical reporting under APA standards, and addresses qualitative thematic extraction.

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Thesis & Research Guide
Academic Series 2026 • 14 min read

Chapter 9: The Fifth Chapter of the Project: Discussion, Interpretations, Limitations, and 35-Point Evaluation

The synthesizing capstone chapter of a thesis. Details the integration of findings with antecedent literature, rigorous preemptive self-criticism of limitations, derivation of practical practitioner implications, suggestions for future research, and a comprehensive 35-point pre-defense evaluation checklist.

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