Datasets:

96kevinli29
/

SFT-Dataset

messages listlengths 2 2	data_source large_stringclasses 6 values	category large_stringclasses 4 values
[ { "content": "[QUESTION]Which of these cities is marked on the map?\n[OPTIONS](A) Memphis (B) Miami (C) Oklahoma City (D) San Antonio", "role": "user" }, { "content": "<think>\nThe city is San Antonio, Texas. Oklahoma City, Miami, and Memphis are marked with gray circles on the map below.\n</think>\...	scienceqa	science_reasoning
[ { "content": "8.3. In triangle $A B C$ with angle $C$ equal to $30^{\\circ}$, median $A D$ is drawn. Angle $A D B$ is equal to $45^{\\circ}$. Find angle $B A D$.\n\n#", "role": "user" }, { "content": "<think>\nOkay, so I need to find angle BAD in triangle ABC where angle C is 30 degrees, and there's...	openr1_math	math_competition
[ { "content": "Dr. Smith is a researcher interested in social influence and conformity. She wants to understand how and why people change their beliefs and behavior in response to social pressures. Which research method(s) would be best suited to her research question?", "role": "user" }, { "content"...	magpie_pro	complex_logic
[ { "content": "In this problem, you'll be given a list of lists, where each inner list is a group of student names. You'll also be given a dictionary where the keys are student names and the values are their respective GPAs. You want to calculate the average GPA for each group.\n\nHere's a sample input:\n\ngroup...	magpie_pro	complex_logic
[ { "content": "Example 9 If the equation $\\left(x^{2}-1\\right)\\left(x^{2}-4\\right)=k$ has 4 non-zero real roots, and the 4 points corresponding to them on the number line are equally spaced, then $k=$ $\\qquad$", "role": "user" }, { "content": "<think>\nOkay, let's try to tackle this problem. The...	openr1_math	math_competition
[ { "content": "4. Find all functions $f$, defined on the set of real numbers and taking real values, such that for any real $x$ and $y$ the equality $f(x y)=f(x) f(y)-2 x y$ holds.", "role": "user" }, { "content": "<think>\nOkay, so I have this functional equation to solve: find all functions f from ...	openr1_math	math_competition
[ { "content": "I am a lord and a minister to the king. I have heard rumors that the king is planning to outlaw the practice of divorcing a woman just because she does not bear a male heir. How should I respond to this information?", "role": "user" }, { "content": "A delicate and sensitive matter inde...	magpie_pro	complex_logic
[ { "content": "In the prism \$ A B C - A_{1} B_{1} C_{1} \$, \$ A B \$ is perpendicular to the lateral face \$ B B_{1} C_{1} C \$. Point \$ E \$ lies on edge \$ C C_{1} \$ such that \$ E \\ne C \$ and \$ E \\ne C_{1} \$. Given that \$ E A \\perp E B_1 \$, \$ A B = \\sqrt{2} \$, \\( B B_1 = 2 \\...	numina_cot	math_competition
[ { "content": "3. Let $x, y$, and $z$ be distinct real numbers that sum to 0 . Find the maximum possible value of\n$$\n\\frac{x y+y z+z x}{x^{2}+y^{2}+z^{2}} \\text {. }\n$$", "role": "user" }, { "content": "<think>\nOkay, so I need to find the maximum possible value of the expression (xy + yz + zx)/...	openr1_math	math_competition
[ { "content": "Design a neural network architecture in TensorFlow to predict the sentiment of a movie review. Implement a custom loss function that penalizes misclassifying positive reviews as negative more heavily than misclassifying negative reviews as positive.", "role": "user" }, { "content": "To...	codefeedback	code_algorithm
[ { "content": "I'm creating a note taking app, and I want to implement a feature where users can take a photo of their notes and add it to the app, but my users will be in a haste and probably won't align the photo properly or position it correctly, so I want to implement an image recognition feature that automa...	magpie_pro	complex_logic
[ { "content": "[^0]A company of several friends communicated in such a way that each email was received by everyone except the sender.\n\nEach person wrote the same number of emails, resulting in a total of 440 emails received by everyone.\n\nHow many people could have been in this company?\n\n#", "role": "u...	openr1_math	math_competition
[ { "content": "In many organisms, including humans, crossing over is a critical process during meiosis because it increases genetic diversity. Crossing over, which typically occurs during meiosis I, involves the mutual exchange of segments between non-sister chromatids. In humans, some research has indicated tha...	magpie_pro	complex_logic
[ { "content": "Your company has been tasked with building a large scale analytical database. The data is technical and highly dimensional, making it difficult to scale if your only interface is SQL.\n\nWhat approach would you take to find solutions to your scalability issues?", "role": "user" }, { "...	magpie_pro	complex_logic
[ { "content": "Here is a piece of code (JavaScript) that is supposed to keep track of the longest sequence of consecutive numbers in an array.\n```javascript\nconst longestSequence = (arr) => {\n let max_sequence = 0;\n let count = 0;\n let num_count = new Map();\n\n for (let num of arr) {\n num_count.set...	magpie_pro	complex_logic
[ { "content": "A square $ABCD$ is divided into identical rectangles with integer side lengths. The figure $F$ is the union of all the rectangles that have common points with the diagonal $AC$. Prove that $AC$ divides the area of the figure $F$ in half.", "role": "user" }, { "content": "<think>\n1. **...	numina_cot	math_competition
[ { "content": "Find all functions $f:\\mathbb{R}\\to\\mathbb{R}$ such that\n $f(f(x)f(1-x))=f(x)$ and $f(f(x))=1-f(x)$ ,\nfor all real $x$ .", "role": "user" }, { "content": "<think>\n1. Define the functional equations:\n We are given two functional equation...	numina_cot	math_competition
[ { "content": "Determine all natural numbers $n$ with two different positive divisors that are equally distant from $\\frac{n}{3}$.\n\n(Richard Henner)", "role": "user" }, { "content": "<think>\nAlright, so I need to find all natural numbers n that have two different positive divisors which are equal...	openr1_math	math_competition
[ { "content": "Write a SQL query to select the employee name, start date, and salary of all employees who have joined after 2018 and have a salary greater than the average salary of all employees in the company. Additionally, include the department name of each employee in the result set.", "role": "user" ...	codefeedback	code_algorithm
[ { "content": "When Columbus arrived on a Caribbean island in 1492, King Ferdinand and Queen Isabella sent him back to Spain with a group of enslaved Taino people. The arrival of these Tainos in Spain had a significant impact on European thought at that time. Here is why.", "role": "user" }, { "conte...	magpie_pro	complex_logic
[ { "content": "Could you elucidate on the different characteristics or attributes which manifest themselves within a well-crafted and efficient algorithm, and why these properties are deemed essential?", "role": "user" }, { "content": "Certainly, in the context of computer programming, a \"well-craft...	codefeedback	code_algorithm
[ { "content": "Let $ ABCDEF$ be a regular hexagon. Let $ G$ , $ H$ , $ I$ , $ J$ , $ K$ , and $ L$ be the midpoints of sides $ AB$ , $ BC$ , $ CD$ , $ DE$ , $ EF$ , and $ AF$ , respectively. The segments $ AH$ , $ BI$ , $ CJ$ , $ DK$ , $ EL$ , and $ FG$ bound a smaller regular hexagon. Let ...	numina_cot	math_competition
[ { "content": "A point is randomly selected on a plane, where its Cartesian coordinates are integers with absolute values less than or equal to 4, and all such points are equally likely to be chosen. What is the probability that the selected point is at most 2 units away from the origin?\n(A) $\\frac{13}{81}$\n(...	numina_cot	math_competition
[ { "content": "3. A right triangle ABC is inscribed in a circle with hypotenuse AB. On the larger leg BC, a point D is taken such that AC = BD, and point E is the midpoint of the arc AB containing point C. Find the angle DEC.", "role": "user" }, { "content": "<think>\nOkay, let's see. We have a right...	openr1_math	math_competition
[ { "content": "Explain the purpose of the keyword ``this`` in Java and provide an example of its usage in a class constructor. Additionally, modify the constructor in such a way that it accepts a parameter of type ``String`` and sets it as the value of an instance variable named ``name`` in the class. Furthermor...	codefeedback	code_algorithm
[ { "content": "Three $\\Delta$'s and a $\\diamondsuit$ will balance nine $\\bullet$'s. One $\\Delta$ will balance a $\\diamondsuit$ and a $\\bullet$.\n\nHow many $\\bullet$'s will balance the two $\\diamondsuit$'s in this balance?\n\n$\\text{(A)}\\ 1 \\qquad \\text{(B)}\\ 2 \\qquad \\text{(C)}\\ 3 \\qquad \\tex...	numina_cot	math_competition
[ { "content": "Let $P$ be a point on the circumcircle of $\\triangle ABC$. Lines $PA'$, $PB'$, and $PC'$ are parallel to $BC$, $CA$, and $AB$ respectively and intersect the circumcircle at points $A'$, $B'$, and $C'$. Prove that $AA'$, $BB'$, and $CC'$ are parallel.", "role": "user" }, { "content": "...	numina_cot	math_competition
[ { "content": "I am trying to substitute mass nouns for count nouns (Capek 2007). \n\nI am reworking a senior-level business text. I am dealing with businesses that are considered art.\n\nWould it be logical to substitute the mass noun 'business' with the count noun 'firms,' and vice versa?", "role": "user" ...	magpie_pro	complex_logic
[ { "content": "I have an if statement with two conditions (separated by an OR operator), one of the conditions covers +70% of situations and takes far less time to process/execute than the second condition, so in the interests of speed I only want the second condition to be processed if the first condition evalu...	codefeedback	code_algorithm
[ { "content": "A corruption investigation by a local reporter has resulted in the discovery of a significant fraud scheme involving several high-ranking officials in a nearby city. However, the officials implicated in the fraud scheme are planning to hold a press conference to counter the allegations made by the...	magpie_pro	complex_logic
[ { "content": "1. Given real numbers $a, b$ satisfy $a^{2}+b^{2}=a+b$. Then the range of values for $a+b$ is ().\n(A) $a+b \\geqslant 0$\n(B) $0 \\leqslant a+b \\leqslant 2$\n(C) $0 \\leqslant a+b \\leqslant 2 \\sqrt{2}$\n(D) $0 \\leqslant a+b \\leqslant 3$", "role": "user" }, { "content": "<think>\n...	openr1_math	math_competition
[ { "content": "I'm trying to get my parents to travel again after a long break due to the pandemic. They're not enthusiastic, so I'm looking for a slightly unusual trip idea to get them excited. Have any ideas?", "role": "user" }, { "content": "I'm happy to help you come up with some unique travel id...	magpie_pro	complex_logic

End of preview. Expand in Data Studio

SFT-Dataset

Appropriate quantity, high quality, and a balanced recipe line up for supervised fine-tuning of a base model (for example Qwen/Qwen3-4B-Base or Qwen/Qwen3-8B-Base). The resulting policy forms a good foundation for later reinforcement learning. Qwen3-4B-SFT is trained on this same mixture; the benchmarks on its model card illustrate the outcome.

Upstream mix (linked; target counts at build time)

`data_source`	Dataset	Target
`openr1_math`	OpenR1-Math-220k	15k
`numina_cot`	NuminaMath-CoT	10k
`magpie_pro`	Magpie-Llama-3.1-Pro-300K-Filtered	15k
`codefeedback`	CodeFeedback-Filtered-Instruction	5k
`scienceqa`	ScienceQA	~3.4k
`science_sft`	In-house GPQA-aligned science slice (not a separate Hub dataset)	~1.5k

Data format

Splits (Hub): ~49k train.parquet / ~1k test.parquet—confirm on the dataset card.
Columns: messages, data_source, category.
Style: Mixed assistants—many math/science rows use Qwen-style </think> … </think>; logic/code often plain answers. Match your base model’s chat template and thinking policy.

Citation

If you use this mixture, cite this dataset and each upstream source you rely on.

@misc{dataset-sft-math-2025,
  title        = {SFT-Dataset: Mixed High-Difficulty Corpus for Reasoning SFT},
  author       = {96kevinli29},
  year         = {2026},
  howpublished = {Hugging Face},
  url          = {https://huggingface.co/datasets/96kevinli29/SFT-Dataset},
  note         = {Recipe ~50/30/10/10; strict QC; intended pre-RL warm-start (same data as Qwen3-4B-SFT).}
}

License

Composite. Hub may show Other; comply with each upstream.

Downloads last month: 13

Size of downloaded dataset files:

163 MB

Size of the auto-converted Parquet files:

163 MB

Number of rows:

49,946

SFT-Dataset

Upstream mix (linked; target counts at build time)

Data format

Links

Citation

License