Rajat Subhra Goswami

23 papers C 1Journal 18Unranked 4
YearRankTypeTitle / Venue / Authors
2026 J jnl
ARU-Net: a U-Net variant with attention and residual blocks for automated MRI brain tumor segmentation.
Pattern Anal. Appl.
Surajit Das, Rajat Subhra Goswami
2026 J jnl
Affinity-based fuzzy twin random vector functional link network classifier.
Comput. Electr. Eng.
Chittabarni Sarkar, Deepak Gupta, Rajat Subhra Goswami, Barenya Bikash Hazarika
2025 J jnl
Addressing challenges in accurate brain tumor classification in MRI: a transfer learning approach with EfficientNetB3 and comprehensive model evaluation.
Multim. Tools Appl.
Surajit Das, Rajat Subhra Goswami
2025 J jnl
Advancements in brain tumor analysis: a comprehensive review of machine learning, hybrid deep learning, and transfer learning approaches for MRI-based classification and segmentation.
Multim. Tools Appl.
Surajit Das, Rajat Subhra Goswami
2025 J jnl
Entropy-based fuzzy 1norm twin random vector functional link networks for binary class imbalance learning.
Eng. Appl. Artif. Intell.
Chittabarni Sarkar, Deepak Gupta, Barenya Bikash Hazarika, Rajat Subhra Goswami
2024 J jnl
A Hybrid Optimized Intelligent Resource-Constrained Service Scheduling for Unified IoT Applications in Smart Cities.
IEEE Trans. Netw. Serv. Manag.
K. Hemant Kumar Reddy, Gautam Srivastava, Rajat Subhra Goswami, Diptendu Sinha Roy
2024 J jnl
A cluster-based quantum key distribution with dynamic node selection: an improved approach for scalability and security in quantum communication.
Quantum Mach. Intell.
Sujit Biswas, Rajat Subhra Goswami, K. Hemant Kumar Reddy
2024 J jnl
Advancing quantum communication security: Metamaterial based quantum key distribution with enhanced protocols.
IET Quantum Commun.
Sujit Biswas, Rajat Subhra Goswami, K. Hemant Kumar Reddy, Sachi Nandan Mohanty, Mohammed Altaf Ahmed
2024 J jnl
Advancing quantum steganography: a secure IoT communication with reversible decoding and customized encryption technique for smart cities.
Clust. Comput.
Sujit Biswas, Rajat Subhra Goswami, K. Hemant Kumar Reddy
2024 J jnl
EFLSM:- An Intelligent Resource Manager for Fog Layer Service Management in Smart Cities.
IEEE Trans. Consumer Electron.
K. Hemant Kumar Reddy, Rajat Subhra Goswami, Ashish Kr. Luhach, Pushpita Chatterjee, Mohamed S. Al-Numay, Diptendu Sinha Roy
2024 J jnl
Exploring the fusion of lattice-based quantum key distribution for secure Internet of Things communications.
IET Quantum Commun.
Sujit Biswas, Rajat Subhra Goswami, K. Hemant Kumar Reddy, Sachi Nandan Mohanty, Mohammed Altaf Ahmed
2024 J jnl
Review, Limitations, and future prospects of neural network approaches for brain tumor classification.
Multim. Tools Appl.
Surajit Das, Rajat Subhra Goswami
2023 J jnl
A futuristic green service computing approach for smart city: A fog layered intelligent service management model for smart transport system.
Comput. Commun.
K. Hemant Kumar Reddy, Rajat Subhra Goswami, Diptendu Sinha Roy
2021 J jnl
An Efficient User Authentication and Session Key Agreement in Wireless Sensor Network Using Smart Card.
Wirel. Pers. Commun.
Chukhu Chunka, Subhasish Banerjee, Rajat Subhra Goswami
2021 J jnl
An efficient mechanism to generate dynamic keys based on genetic algorithm.
Secur. Priv.
Chukhu Chunka, Rajat Subhra Goswami, Subhasish Banerjee
2019 — conf
A Novel Key Generating Scheme of Automatic Variable Key.
ANTS
Chukhu Chunka, Subhasish Banerjee, Rajat Subhra Goswami
2019 J jnl
An Enhanced and Secure Biometric Based User Authentication Scheme in Wireless Sensor Networks Using Smart Cards.
Wirel. Pers. Commun.
Subhasish Banerjee, Chukhu Chunka, Srijon Sen, Rajat Subhra Goswami
2019 J jnl
Exception-Tolerant Decision Tree / Rule Based Classifiers.
Ingénierie des Systèmes d Inf.
Sayan Sikder, Sanjeev Kumar Metya, Rajat Subhra Goswami
2018 J jnl
Investigation a new technique of automatic variable key using two dimensional matrix approach to achieve perfect security.
Int. J. Commun. Networks Distributed Syst.
Moumita Das, Pranab Roy, Rajat Subhra Goswami, Chandan Tilak Bhunia
2015 C conf
Absolute key variation technique of automatic variable key in cryptography.
SIN
Rajat Subhra Goswami, Subhasish Banerjee, Manash Pratim Dutta, Chandan Tilak Bhunia
2014 — conf
Method of Non Majority Decision Making in Aggressive Packet Combining Scheme.
ITNG
Swarnendu Kumar Chakraborty, Rajat Subhra Goswami, Abhinandan Bhunia, Chandan Tilak Bhunia
2013 — conf
New Approach towards Generation of Automatic Variable Key to Achieve Perfect Security.
ITNG
Rajat Subhra Goswami, Swarnendu Kumar Chakraborty, Abhinandan Bhunia, Chandan Tilak Bhunia
2013 — conf
Two New Modified Schemes of Aggressive Packet Combining Schemes in Achieving Better Throughput.
ITNG
Swarnendu Kumar Chakraborty, Rajat Subhra Goswami, Abhinandan Bhunia, Chandan Tilak Bhunia
notebooks/redb-clickhouse-TEST.ipynb
← Index notebooks/redb-clickhouse-TEST.ipynb plaintext
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{
 "cells": [
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "## Definitions"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 5,
   "metadata": {},
   "outputs": [],
   "source": [
    "import clickhouse_connect"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": [
    "\n",
    "ch_TEST_client = clickhouse_connect.get_client(host='e.rationaledge.io', port=443, username='default', password='werioubTGwvf0-dsbv_', database='redb', verify=False)"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 11,
   "metadata": {},
   "outputs": [],
   "source": [
    "ch_TEST_BETA_client = clickhouse_connect.get_client(host='k.rationaledge.io', port=443, username='default', password='werioubTGwvf0-dsbv_', database='default', verify=False)"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 13,
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/plain": [
       "<bound method HttpClient.close_connections of <clickhouse_connect.driver.httpclient.HttpClient object at 0x105fd64d0>>"
      ]
     },
     "execution_count": 13,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "ch_TEST_BETA_client.close_connections"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 9,
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/plain": [
       "<clickhouse_connect.driver.summary.QuerySummary at 0x11f900810>"
      ]
     },
     "execution_count": 9,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "ch_TEST_BETA_client.command(\"\"\"\n",
    "RENAME DATABASE redb TO orig_redb;\n",
    "\"\"\")"
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "## DB Creation (schema 2025-08-02)"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": [
    "ch_TEST_client.command(\"\"\"\n",
    "CREATE DATABASE IF NOT EXISTS redb;\n",
    "\"\"\")"
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "### Define General Tables"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": [
    "### CREATE FULL REDB DATABASE\n",
    "def create_redb_with_all_tables(client):\n",
    "    client.command(\"\"\"\n",
    "        CREATE DATABASE IF NOT EXISTS redb\n",
    "    \"\"\")\n",
    "    create_all_general_tables(client)\n",
    "    create_all_pe_tables(client)\n",
    "\n",
    "#### CREATE FULL TABLES\n",
    "def create_all_general_tables(client):\n",
    "    create_basic_properties_dbtable(client)\n",
    "    create_hashes_dbtable(client)\n",
    "    create_capa_dbtable(client)\n",
    "    create_die_dbtable(client)\n",
    "    create_extra_findings_dbtable(client)\n",
    "\n",
    "\n",
    "##################################\n",
    "#### CREATE INDIVIDUAL TABLES ####\n",
    "##################################\n",
    "\n",
    "#### GENERAL TABLES ####\n",
    "# All tables have SETTINGS index_granularity = 8192\n",
    "def create_basic_properties_dbtable(client):\n",
    "    # Create samples_metadata table\n",
    "    client.command(\"\"\"\n",
    "        CREATE TABLE IF NOT EXISTS redb_basic_properties (\n",
    "            sha256 FixedString(64), -- primary key\n",
    "            md5 FixedString(32),\n",
    "            sha1 FixedString(40),\n",
    "            filename Nullable(String),\n",
    "            sample_name String,\n",
    "            filesize UInt64,\n",
    "            file_entropy Float64,\n",
    "            filetype LowCardinality(String),\n",
    "            filetype_mime LowCardinality(String),\n",
    "            filetype_magika LowCardinality(String),\n",
    "            analysis_date DateTime64(3, 'UTC'),\n",
    "        ) ENGINE = ReplacingMergeTree(analysis_date)\n",
    "        PRIMARY KEY (sha256)\n",
    "        ORDER BY (sha256)\n",
    "    \"\"\")\n",
    "\n",
    "def create_hashes_dbtable(client):\n",
    "    # Create hashes table\n",
    "    client.command(\"\"\"\n",
    "        CREATE TABLE IF NOT EXISTS redb_hashes (\n",
    "            sha256 FixedString(64), -- primary key\n",
    "            md5 FixedString(32),\n",
    "            sha1 FixedString(40),\n",
    "            ssdeep_hash Nullable(String),\n",
    "            tlsh_hash Nullable(String),\n",
    "            authentihash Nullable(String),\n",
    "            imphash Nullable(String),\n",
    "            impfuzzy Nullable(String),\n",
    "            typerefhash Nullable(String),\n",
    "            richhash Nullable(String),\n",
    "            richpe_hash Nullable(String),\n",
    "            richpv_hash Nullable(String),\n",
    "            richpv_hash_sorted Nullable(String),\n",
    "            dhash Nullable(String),\n",
    "            analysis_date DateTime64(3, 'UTC')\n",
    "        ) ENGINE = ReplacingMergeTree(analysis_date)\n",
    "        PRIMARY KEY (sha256)\n",
    "        ORDER BY (sha256)\n",
    "    \"\"\")\n",
    "\n",
    "def create_capa_dbtable(client):\n",
    "    # Create sample_capabilities table\n",
    "    client.command(\"\"\"\n",
    "        SET enable_json_type = 1;\n",
    "    \"\"\")\n",
    "    client.command(\"\"\"\n",
    "        -- Base table for CAPA analysis results\n",
    "        CREATE TABLE IF NOT EXISTS redb_capa (\n",
    "            sha256 FixedString(64),\n",
    "            md5 FixedString(32),\n",
    "            sha1 FixedString(40),\n",
    "            analysis_date DateTime64(3, 'UTC'),\n",
    "            -- Store full JSON dumps as strings for flexibility\n",
    "            capa_dump JSON CODEC(ZSTD(3)),\n",
    "            attack_dump JSON CODEC(ZSTD(3)),\n",
    "            mbc_dump JSON CODEC(ZSTD(3))\n",
    "        ) ENGINE = ReplacingMergeTree(analysis_date)\n",
    "        ORDER BY sha256;\n",
    "    \"\"\")\n",
    "\n",
    "    client.command(\"\"\"\n",
    "        -- Normalized table for capabilities and namespaces\n",
    "        CREATE TABLE IF NOT EXISTS redb_capa_capabilities (\n",
    "            sha256 FixedString(64),\n",
    "            md5 FixedString(32),\n",
    "            sha1 FixedString(40),\n",
    "            analysis_date DateTime64(3, 'UTC'),\n",
    "            namespace LowCardinality(String),\n",
    "            capability LowCardinality(String)\n",
    "        ) ENGINE = ReplacingMergeTree(analysis_date)\n",
    "        ORDER BY (sha256, namespace, capability);\n",
    "    \"\"\")\n",
    "\n",
    "    client.command(\"\"\"\n",
    "        -- Materialized view for capability statistics\n",
    "        CREATE MATERIALIZED VIEW IF NOT EXISTS redb_capa_capabilities_stats (\n",
    "            namespace LowCardinality(String),\n",
    "            capability LowCardinality(String),\n",
    "            samples_bitmap AggregateFunction(groupBitmap, UInt64),\n",
    "            occurrence_count UInt64\n",
    "        ) ENGINE = AggregatingMergeTree()\n",
    "        ORDER BY (namespace, capability)\n",
    "        AS SELECT\n",
    "            namespace,\n",
    "            capability,\n",
    "            groupBitmapState(cityHash64(sha256)) as samples_bitmap,\n",
    "            count() as occurrence_count\n",
    "        FROM redb_capa_capabilities\n",
    "        GROUP BY namespace, capability;\n",
    "    \"\"\")\n",
    "\n",
    "    client.command(\"\"\"\n",
    "        -- Normalized table for MITRE ATT&CK mappings\n",
    "        CREATE TABLE IF NOT EXISTS redb_capa_attack (\n",
    "            sha256 FixedString(64),\n",
    "            md5 FixedString(32),\n",
    "            sha1 FixedString(40),\n",
    "            analysis_date DateTime64(3, 'UTC'),\n",
    "            tactic LowCardinality(String),\n",
    "            technique LowCardinality(String),\n",
    "            technique_id LowCardinality(String)\n",
    "        ) ENGINE = ReplacingMergeTree(analysis_date)\n",
    "        ORDER BY (sha256, tactic, technique_id);\n",
    "    \"\"\")\n",
    "\n",
    "    client.command(\"\"\"\n",
    "        -- Materialized view for ATT&CK statistics\n",
    "        CREATE MATERIALIZED VIEW IF NOT EXISTS redb_capa_attack_stats (\n",
    "            tactic LowCardinality(String),\n",
    "            technique LowCardinality(String),\n",
    "            technique_id LowCardinality(String),\n",
    "            samples_bitmap AggregateFunction(groupBitmap, UInt64),\n",
    "            occurrence_count UInt64\n",
    "        ) ENGINE = AggregatingMergeTree()\n",
    "        ORDER BY (tactic, technique_id)\n",
    "        AS SELECT\n",
    "            tactic,\n",
    "            technique,\n",
    "            technique_id,\n",
    "            groupBitmapState(cityHash64(sha256)) as samples_bitmap,\n",
    "            count() as occurrence_count\n",
    "        FROM redb_capa_attack\n",
    "        GROUP BY tactic, technique, technique_id;\n",
    "    \"\"\")\n",
    "\n",
    "    client.command(\"\"\"\n",
    "        -- Normalized table for MBC mappings\n",
    "        CREATE TABLE IF NOT EXISTS redb_capa_mbc (\n",
    "            sha256 FixedString(64),\n",
    "            md5 FixedString(32),\n",
    "            sha1 FixedString(40),\n",
    "            analysis_date DateTime64(3, 'UTC'),\n",
    "            objective LowCardinality(String),\n",
    "            behavior LowCardinality(String),\n",
    "            behavior_id LowCardinality(String)\n",
    "        ) ENGINE = ReplacingMergeTree(analysis_date)\n",
    "        ORDER BY (sha256, objective, behavior_id);\n",
    "    \"\"\")\n",
    "\n",
    "    client.command(\"\"\"\n",
    "        -- Materialized view for MBC statistics\n",
    "        CREATE MATERIALIZED VIEW IF NOT EXISTS redb_capa_mbc_stats (\n",
    "            objective LowCardinality(String),\n",
    "            behavior LowCardinality(String),\n",
    "            behavior_id LowCardinality(String),\n",
    "            samples_bitmap AggregateFunction(groupBitmap, UInt64),\n",
    "            occurrence_count UInt64\n",
    "        ) ENGINE = AggregatingMergeTree()\n",
    "        ORDER BY (objective, behavior_id)\n",
    "        AS SELECT\n",
    "            objective,\n",
    "            behavior,\n",
    "            behavior_id,\n",
    "            groupBitmapState(cityHash64(sha256)) as samples_bitmap,\n",
    "            count() as occurrence_count\n",
    "        FROM redb_capa_mbc\n",
    "        GROUP BY objective, behavior, behavior_id;\n",
    "    \"\"\")\n",
    "\n",
    "def create_die_dbtable(client):\n",
    "    # Create sample_die table\n",
    "    client.command(\"\"\"\n",
    "        SET enable_json_type = 1;\n",
    "    \"\"\")\n",
    "    client.command(\"\"\"\n",
    "        CREATE TABLE IF NOT EXISTS redb_die (\n",
    "            sha256 FixedString(64),\n",
    "            md5 FixedString(32),\n",
    "            sha1 FixedString(40),\n",
    "            die_info JSON CODEC(ZSTD(3)),\n",
    "            analysis_date DateTime64(3, 'UTC')\n",
    "        ) ENGINE = ReplacingMergeTree(analysis_date)\n",
    "        PRIMARY KEY (sha256)\n",
    "        ORDER BY (sha256)\n",
    "    \"\"\")\n",
    "\n",
    "    client.command(\"\"\"\n",
    "        CREATE MATERIALIZED VIEW redb_die_mv\n",
    "        (\n",
    "            sha256 FixedString(64),\n",
    "            md5 FixedString(32),\n",
    "            sha1 FixedString(40),\n",
    "            analysis_date DateTime64(3, 'UTC'),\n",
    "            compiler LowCardinality(Nullable(String)),\n",
    "            compiler_full Nullable(String),\n",
    "            format LowCardinality(Nullable(String)),\n",
    "            format_full Nullable(String),\n",
    "            installer LowCardinality(Nullable(String)),\n",
    "            installer_full Nullable(String),\n",
    "            joiner LowCardinality(Nullable(String)),\n",
    "            joiner_full Nullable(String),\n",
    "            language LowCardinality(Nullable(String)),\n",
    "            language_full Nullable(String),\n",
    "            library LowCardinality(Nullable(String)),\n",
    "            library_full Nullable(String),\n",
    "            linker LowCardinality(Nullable(String)),\n",
    "            linker_full Nullable(String),\n",
    "            operation_system LowCardinality(Nullable(String)),\n",
    "            operation_system_full Nullable(String),\n",
    "            packer LowCardinality(Nullable(String)),\n",
    "            packer_full Nullable(String),\n",
    "            protector LowCardinality(Nullable(String)),\n",
    "            protector_full Nullable(String),\n",
    "            sfx LowCardinality(Nullable(String)),\n",
    "            sfx_full Nullable(String),\n",
    "            sign_tool LowCardinality(Nullable(String)),\n",
    "            sign_tool_full Nullable(String),\n",
    "            stub LowCardinality(Nullable(String)),\n",
    "            stub_full Nullable(String),\n",
    "            tool LowCardinality(Nullable(String)),\n",
    "            tool_full Nullable(String),   \n",
    "            -- overlay JSON CODEC(ZSTD(3)),\n",
    "            -- resource JSON CODEC(ZSTD(3)),\n",
    "            has_overlay UInt8,\n",
    "            has_resources UInt8,\n",
    "            is_packed UInt8\n",
    "        )\n",
    "        ENGINE = ReplacingMergeTree(analysis_date)\n",
    "        ORDER BY (sha256)\n",
    "        POPULATE\n",
    "        AS SELECT\n",
    "            sha256,\n",
    "            md5,\n",
    "            sha1,\n",
    "            analysis_date,\n",
    "            nullIf(JSONExtractString(toString(die_info), 'compiler'), '') AS compiler,\n",
    "            nullIf(JSONExtractString(toString(die_info), 'compiler(full)'), '') AS compiler_full,\n",
    "            nullIf(JSONExtractString(toString(die_info), 'format'), '') AS format,\n",
    "            nullIf(JSONExtractString(toString(die_info), 'format(full)'), '') AS format_full,\n",
    "            nullIf(JSONExtractString(toString(die_info), 'installer'), '') AS installer,\n",
    "            nullIf(JSONExtractString(toString(die_info), 'installer(full)'), '') AS installer_full,\n",
    "            nullIf(JSONExtractString(toString(die_info), 'joiner'), '') AS joiner,\n",
    "            nullIf(JSONExtractString(toString(die_info), 'joiner(full)'), '') AS joiner_full,\n",
    "            nullIf(JSONExtractString(toString(die_info), 'language'), '') AS language,\n",
    "            nullIf(JSONExtractString(toString(die_info), 'language(full)'), '') AS language_full,\n",
    "            nullIf(JSONExtractString(toString(die_info), 'library'), '') AS library,\n",
    "            nullIf(JSONExtractString(toString(die_info), 'library(full)'), '') AS library_full,\n",
    "            nullIf(JSONExtractString(toString(die_info), 'linker'), '') AS linker,\n",
    "            nullIf(JSONExtractString(toString(die_info), 'linker(full)'), '') AS linker_full,\n",
    "            nullIf(JSONExtractString(toString(die_info), 'operation_system'), '') AS operation_system,\n",
    "            nullIf(JSONExtractString(toString(die_info), 'operation_system(full)'), '') AS operation_system_full,\n",
    "            nullIf(JSONExtractString(toString(die_info), 'packer'), '') AS packer,\n",
    "            nullIf(JSONExtractString(toString(die_info), 'packer(full)'), '') AS packer_full,\n",
    "            nullIf(JSONExtractString(toString(die_info), 'protector'), '') AS protector,\n",
    "            nullIf(JSONExtractString(toString(die_info), 'protector(full)'), '') AS protector_full,\n",
    "            nullIf(JSONExtractString(toString(die_info), 'sfx'), '') AS sfx,\n",
    "            nullIf(JSONExtractString(toString(die_info), 'sfx(full)'), '') AS sfx_full,\n",
    "            nullIf(JSONExtractString(toString(die_info), 'sign_tool'), '') AS sign_tool,\n",
    "            nullIf(JSONExtractString(toString(die_info), 'sign_tool(full)'), '') AS sign_tool_full,\n",
    "            nullIf(JSONExtractString(toString(die_info), 'stub'), '') AS stub,\n",
    "            nullIf(JSONExtractString(toString(die_info),