Posts
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Research Paper Valuation Ratios Surprises Uncertainty Or Sentiment How Does Financial Machine Learning Predict Returns From Earnings Announcements
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Research Paper The Momentum of News
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Research Paper Slowly Incorporated News and Stock Return Predictability
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Research Paper Predictability of Industry Returns After M&A Announcements
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Research Paper Cross-Firm Information Flows and the Predictability of Stock Returns
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Research Paper Are Cash Flows Better Stock Return Predictors Than Profits
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Research Paper Relative Strength Strategies for Investing
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Research Paper Penny Wise, Dollar Foolish: Buy-Sell Imbalances On and Around Round Numbers
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Sum of Alternating Weights of Subsets of {1, 2, ..., 2013}
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Optimal Betting Strategy for the World Series Using Dynamic Programming
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How Many People Did Mrs. Jones Shake Hands With?
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How Many Digits Does 125^100 Have Without Using Logarithms?
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Alice and Bob Multiplicative Game: Can Alice Always Win?
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Why One Train Arrives First 80% of the Time
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Probability that One Random Subset is Contained in Another
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Probability of Amoeba Extinction in a Branching Process
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Can Mulder Escape the Alien? A Circular Pursuit Problem
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Can Bob Guess the Larger Number with Better Than 50% Accuracy?
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Visible Unit Cubes on the Surface of a 10×10×10 Cube
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The Pancake Problem: Conditional Probability Puzzle
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Shortest Path for an Ant in a 10×10×10 Cube
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Probability of No Two Consecutive Heads in n Coin Tosses
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Expected Tosses Until Two Consecutive Heads
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Expected Flips Until First Head
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Counting 1″ and 2″ Jump Sequences Using Matrix Exponentiation
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Choosing Fairly Between Three Options Using a Coin
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Alice vs. Bob: Coin Toss Game and the Ballot Problem
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Solving the Ornstein–Uhlenbeck SDE
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Positive Semidefiniteness of a 3×3 Correlation Matrix
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Distribution and Martingale Property of an Integrated Wiener Process
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C++ Implementations of the Fibonacci Function
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Arbitrage Opportunity in Mispriced Put Options
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Where on Earth Can You Travel S–E–N and Return to Start?
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Proof That the Standard Normal PDF Integrates to 1
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How Many Uniform Samples to Hit an Interval with 95% Probability?
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Digit Puzzle: What’s Missing in 2^29?
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Ant Collisions on a Line: Who Reaches Whom?
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The power of two
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Five Classic Sorting Algorithms: Descriptions and Complexity
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Three Classic Search Problems: Min/Max, Sparse Array, and Matrix Search
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Fisher–Yates Shuffle and Reservoir Sampling
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Sliding-Window Average in O(m) Time
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Maximum Contiguous Subarray: Kadane’s Algorithm
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Naive Recursive Fibonacci: Why It Explodes and How to Fix It
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Remove Duplicates from a Sorted Array
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Random Ants on a Stick: Expected Time Until All Fall Off
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Order Statistics of Uniform(0,1): Max and Min
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In-Place Variable Swap: No Temp Needed
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Efficient Polynomial Evaluation with Horner’s Rule
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Biased Gambler’s Ruin: Unequal Initial Fortunes
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Dice Duel: Rolling a 12 Before Two Sevens in a Row
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Correlation of Min and Max of Two Uniform Variables
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Color Consensus: Expected Steps to Uniformity
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Penney’s Game: Waiting Times, Sequence Races, and Optimal Strategies
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The Noodle Connection Puzzle: Expected Number of Loops
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The Meeting Problem: Will They Overlap?
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Stopping Rule Puzzle: Expected Total Die Roll Earnings
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Simplex Volume: Probability the Sum of Uniforms is ≤ 1
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Moments of the Standard Normal Distribution
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Minimum-Variance Hedge Ratio in Portfolio Theory
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First-Ace Puzzle: Expected Stopping Time in a Deck
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Coupon Collector Problem: Full Collection and Expected Diversity
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Correlation and Joint Probability Bounds: At Least One Default
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Cars on the Road: Poisson Probability Over Time
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Bus-Waiting and the Memoryless Property
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Broken Stick Problem: Forming a Triangle
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The Monty Hall Problem: Should You Switch?
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The Boy or Girl Paradox: Two Variants
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The Birthday Problem: Probability of Shared Birthdays
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The 100th Digit of (1 + √2)^3000
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Simulating a Fair Coin with a Biased One: The Von Neumann Extractor
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Self-Reinforcing Free Throw Probability: Exactly 50 Makes in 100 Shots
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Russian Roulette: Optimal Strategies Across Four Variants
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Probability of Strictly Increasing Dice Rolls
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Gambler’s Ruin: Reaching the Goal Before Going Broke
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Galton–Watson Branching Process: Will the Amoebas Die Out?
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Derangement Puzzle: When Every Letter Goes Wrong
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Dart Game and Conditional Probability
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Probability That a Cube Ends in 11
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Candies in a Jar: Probability of Final Red Draw with Remaining Blue and Green
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Birthday-Line Puzzle: When to Stand in Line
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Bayes' Theorem and the Double-Headed Coin
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Alternating Coin Toss Game: Who Wins on HT?
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All-Girl World Reproduction Puzzle
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Aces in a Bridge Deal: Equal Distribution
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Why √2 Is Irrational: A Classic Proof
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Staircase Problem: How Many Ways Can the Rabbit Hop?
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Rainbow Hats Puzzle: Guaranteeing One Correct Guess
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Poker Probabilities: Four-of-a-Kind, Full House, Two Pairs
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Pirates, Locks, and Threshold Security
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N Points on a Circle: When Do They Fit in a Semicircle?
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Gas Station Puzzle: Completing the Circular Lap
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Coin Toss Game: Who Wins with One Extra Flip?
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Chocolate Bar Puzzle: Breaking It Down
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Chess Tournament Puzzle: When Do the Top Two Meet?
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Card Comparison Game: What Are the Odds You Win?
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Airplane Seating Puzzle: The Drunk Passenger Paradox
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Divisibility by 9: A Digit-Sum Shortcut
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Coin-Splitting Puzzle: Invariance in Action
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Chameleon Colors: Can They All Agree?
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100 Prisoners and Hats: Surviving with Strategy
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Two Missing Numbers: Finding What’s Gone
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Two Glass Balls and the 100-Story Drop
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The Party Problem: Ramsey’s Theorem in Action
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Sock Drawer Puzzle: Matching by the Pigeonhole Principle
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Single Weighing: Find the Counterfeit Bag
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Handshake Puzzle: No Unique Counts Allowed
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Counterfeit Coins II: Weigh Once, Learn All
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Clock Pieces Puzzle: Equal Arcs Around the Dial
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Ants on a Square: Pigeonholes Under Glass
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Wise Men and the Glass: A Coordinated Countdown to Freedom
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Two Doors, Two Guards: One Question to Decide
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Trailing Zeros in 100!: Factorial Fun
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The Last Ball Puzzle: An Invariant Insight
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Secure Salary Averaging: Private Numbers, Public Mean
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Secure Message in a Box: The Double-Lock Solution
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Mislabeled Bags: One Pull to Solve Them All
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Light Bulb and Switches: Solving with Heat and Logic
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Infinite Power Tower: Solving for Stability
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Coin Piles Puzzle: Equal Heads Without Seeing
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Calendar Cubes: Building Every Day of the Month
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Box Packing Puzzle: Bricks in a Cube
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25 Horses, 5 Lanes: Finding the Top 3 Fastest
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The Birthday Problem: Deduction by Dialogue
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Pair-Draw Casino Game: A Sure Bet Against You
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Burning Ropes: Timing the Irregular
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Bridge and Torch: Racing Against the Dark
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12-Ball Balance Puzzle: Solving in Three Weighings
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Tiger and Sheep: Parity, Predation, and Rationality
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Screwy Pirates and Rational Coin Splits
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Combining AI and Finance An End-to-End Earnings Call Analysis Using Gemini and Python
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Streamlining Network Traffic Analysis: A Guide to Using CICFlowMeter on Windows
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Step-by-Step Guide to Configuring a 5G SA Network with Open5GS and MEC on Virtual Machines
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Setting Up a SoftEther VPN Server on Windows 10: A Step-by-Step Guide
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Solving WinError of Pytorch Error Loading caffe2_detectron_ops.dll
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Laravel Homestead and Voyager on Window 10
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Sequence of Caption and Label in Latex Table Matters
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Configurating HPE FlexFabric 5700 from Factory Setting with Console
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Setting Up ONOS Controller with Mininet
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Image Captioning with Mxnet
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Anomaly Firewall Rule Detection and Resolution
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Console Drawing Board
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Install Mininet and Ryu Controller
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Setup a public Jupyter Notebook Server with HTTPS
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Dogs & Cats : Using Pretrained Convolution Neural Network for Feature Extraction and Prediction with Pytorch
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Model Free Prediction & Control with Monte Carlo : Blackjack
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CUDA Laplace equation on 2D lattice with texture memory
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Weight initialization for neural network
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CUDA maximum value with parallel reduction
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CUDA 2D matrix element-wise reciprocal addition
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Cost function mse vs cross-entropy
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Dual OS and Python installation guide
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Tensorflow and Keras environment installation guide
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Image contrast enhancement in Matlab
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Pthread fast matrix multiplication
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Trip to Mount. Fuji - Shibuya and Tokyo University
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Trip to Mount. Fuji - Akihabara and Ginza
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Trip to Mount. Fuji - Kameari Park and Ueno Onshi Park
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Trip to Mount. Fuji - Asakusa and Tokyo Skytree
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Trip to Mount. Fuji - Kawaguchiko and Music Forest
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Trip to Mount. Fuji - Shinjuku and the lakeside hotel
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Two degree of freedom system containing two springs and two masses
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TRY2HACK wargame level 7
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Install python packages for local user without sudo
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Web crawler on observation data using python
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Installation of Kali Linux in Virtual Box
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Map reduce common friend
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Spark shell word count
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Git getting started
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Webgoat http basics interception
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TRY2HACK wargame level 4
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TRY2HACK wargame level 3
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OpenMP game of life
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Micorsoft project oxford OCR
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TRY2HACK wargame level 2
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TRY2HACK wargame level 1
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Validate XML with XML schema using Java
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Simple TCP client and server using python
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WebGoat installation
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Rasberry Pi Unboxing
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Simple Angular js directives
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Google calendar
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Facebook login api